R&D of New Businesses, Products, Technologies and Production Technologies

「In the Optical Products-related segment, the Group focused on developing multicore optical connectors used for ultra-high-speed, wide-bandwidth parallel optical transmission in data centers and other facilities, as well as CPO (Co-Packaged Optics)-related technologies aimed at the practical application of the next-generation optical-electrical convergence communications technology, which offers higher speeds and lower power consumption.」

「In September 2025, the Group issued a press release on SSIMC, an in-mold painting system jointly developed with SUMITOMO HEAVY INDUSTRIES,LTD. The Group will continue working to resolve technical issues ahead of the planned launch of system sales in 2026.」

「The in-mold painting technology jointly developed by the Group and 株式会社東海理化 improves the production efficiency of molded products by performing the painting process inside the mold and can reduce greenhouse gas emissions during production by approximately 60%. In April 2025, steering-wheel switch components molded using this in-mold painting technology were adopted for the first time in TOYOTA MOTOR CORPORATION's HiAce.」

「The development of new technologies and products for new business areas is conducted in both the Precision Equipment-related and Optical Products-related segments. Research and development expenses incurred during the interim consolidated accounting period amounted to ¥60.614 million. Expenses for product improvements and production technology enhancements in existing business areas amounted to ¥115.403 million, while expenses for developing the Group's precision mold and precision molding technologies amounted to ¥56.520 million.」

「The development of new technologies and products for new business areas is conducted in both the Precision Equipment-related and Optical Products-related segments. Research and development expenses incurred during the third quarter of the current consolidated cumulative period amounted to ¥110.041 million. During the period, expenses for developing precision mold and precision molding technologies that form the foundation of both segments amounted to ¥88.728 million, while expenses for product improvements and production technology enhancements in existing business areas amounted to ¥148.920 million. As a result, total research and development expenses for the third quarter of the current consolidated cumulative period amounted to ¥347.691 million. There were no material changes in the Group's research and development activities during the period.」

「The development of new technologies and products for new business areas is conducted in both the Precision Equipment-related and Optical Products-related segments. Research and development expenses incurred during the second quarter of the current consolidated cumulative period amounted to ¥73.906 million.」

「The development of new technologies and products for new business areas is conducted in both the Precision Equipment-related and Optical Products-related segments. Research and development expenses incurred during the first quarter of the current consolidated cumulative period amounted to ¥36.133 million. During the period, expenses for developing precision mold and precision molding technologies that form the foundation of both segments amounted to ¥27.074 million, while expenses for product improvements and production technology enhancements in existing business areas amounted to ¥52.352 million. As a result, total research and development expenses for the first quarter of the current consolidated cumulative period amounted to ¥115.560 million. There were no material changes in the Group's research and development activities during the period.」

「The Group jointly developed in-mold painting technology with 株式会社東海理化, which improves production efficiency and reduces greenhouse gas emissions by performing the painting process inside the mold, and is conducting verification toward practical application in 2025.」

「The development of new technologies and products for new business areas is conducted in both the Precision Equipment-related and Optical Products-related segments. Research and development expenses incurred during the third quarter of the current consolidated cumulative period amounted to ¥110.060 million. ... As a result, total research and development expenses for the third quarter of the current consolidated cumulative period amounted to ¥342.290 million. There were no material changes in the Group's research and development activities during the period.」

「The development of new technologies and products for new business areas is conducted in both the Precision Equipment-related and Optical Products-related segments. Research and development expenses incurred during the second quarter of the current consolidated cumulative period amounted to ¥63.737 million. During the period, expenses for developing precision mold and precision molding technologies that form the foundation of both segments amounted to ¥53.268 million, while expenses for product improvements and production technology enhancements in existing business areas amounted to ¥102.920 million.」

「To accelerate the development of new products and technologies, the Group worked to enhance its technological capabilities so that it could contribute across a broader range of fields, while sharing the progress of new products and technologies internally and visualizing development status so that products could be released to the market when aligned with customer and market needs.」

「During the consolidated fiscal year, the Group focused on developing optical communications devices that enable high-speed, high-capacity transmission and multicore connectors that allow extensive wiring in confined spaces. It also applied technologies for handling optical fibers and optical crystals, as well as optical design technologies, to other fields and worked on research and development of products for applications beyond optical communications, including optical electric-field sensors for measuring 5G base-station antennas, unpowered optical transmission equipment and ultra-small resin lenses.」

「The Group also developed in-house equipment to automate the assembly-to-packaging process for new optical connectors, for which demand is increasing, and worked to improve production efficiency.」

「Research and development expenses for the second quarter of the current consolidated cumulative period amounted to ¥53.717 million, reflecting efforts to develop optical electric-field sensors that accurately measure electric fields in the 28 GHz band for the spread of 5G communications and optical communications devices that enable high-speed, high-capacity transmission. Meanwhile, product improvements and production technology enhancements in existing business areas are conducted in both segments, and the expenses incurred for these activities during the period amounted to ¥141.217 million. As a result, total research and development expenses for the second quarter of the current consolidated cumulative period amounted to ¥194.935 million.」

「Research and development expenses for the first quarter of the current consolidated cumulative period amounted to ¥24.630 million, reflecting efforts to develop optical electric-field sensors that accurately measure electric fields in the 28 GHz band for the spread of 5G communications and optical communications devices that enable high-speed, high-capacity transmission. Meanwhile, product improvements and production technology enhancements in existing business areas are conducted in both segments, and the expenses incurred for these activities during the period amounted to ¥66.396 million. As a result, total research and development expenses for the first quarter of the current consolidated cumulative period amounted to ¥91.026 million. There were no material changes in the Group's research and development activities during the period.」

「During the consolidated fiscal year, the Group focused on developing optical communications devices that enable high-speed, high-capacity transmission and multicore connectors that allow extensive wiring in confined spaces. It also applied technologies for handling optical crystals and optical fibers to other fields and worked on research and development of products for applications beyond optical communications, including optical electric-field sensors for measuring 5G base-station antennas and unpowered optical transmission equipment.」

「Research and development expenses for the third quarter of the current consolidated cumulative period amounted to ¥67.192 million, reflecting efforts to develop optical electric-field sensors that accurately measure electric fields in the 28 GHz band for the spread of 5G communications and optical communications devices that enable high-speed, high-capacity transmission. Meanwhile, product improvements and production technology enhancements in existing business areas are conducted in both segments, and the expenses incurred for these activities during the period amounted to ¥220.515 million. As a result, total research and development expenses for the third quarter of the current consolidated cumulative period amounted to ¥287.707 million.」

「Research and development expenses for the second quarter of the current consolidated cumulative period amounted to ¥41.558 million, reflecting efforts to develop optical electric-field sensors that accurately measure electric fields in the 28 GHz band for the spread of 5G communications and optical communications devices that enable high-speed, high-capacity transmission. Meanwhile, product improvements and production technology enhancements in existing business areas are conducted in both segments, and the expenses incurred for these activities during the period amounted to ¥144.321 million. As a result, total research and development expenses for the second quarter of the current consolidated cumulative period amounted to ¥185.879 million.」

「The development of new technologies and products for new business areas is conducted by the Group-wide research and development department and in both business segments, Precision Equipment-related and Optical Products-related. Research and development expenses for the first quarter of the current consolidated cumulative period amounted to ¥22.086 million, reflecting efforts to develop optical electric-field sensors that accurately measure electric fields in the 28 GHz band for the spread of 5G communications and optical communications devices that enable high-speed, high-capacity transmission. Meanwhile, product improvements and production technology enhancements in existing business areas are conducted in both segments, and the expenses incurred for these activities during the period amounted to ¥73.610 million. As a result, total research and development expenses for the first quarter of the current consolidated cumulative period amounted to ¥95.696 million. There were no material changes in the Group's research and development activities during the period.」

「During the consolidated fiscal year, the Group focused on developing optical communications devices that enable high-speed, high-capacity transmission and multicore connectors that allow extensive wiring in confined spaces. It also applied technologies for handling optical crystals and optical fibers to other fields and worked on research and development of products for applications beyond optical communications, including optical electric-field sensors for measuring 5G base-station antennas and unpowered optical transmission equipment.」

「Research and development expenses for the third quarter of the current consolidated cumulative period amounted to ¥126.294 million, reflecting efforts to develop decorative molding technology that accurately transfers extremely fine projections and recesses formed on molds to enable mass production of glossy molded products with a metallic appearance, as well as new products for the increasingly high-speed, high-capacity optical communications market and ultra-small lenses. Meanwhile, product improvements and production technology enhancements in existing business areas are conducted in both business segments, and the expenses incurred for these activities during the period amounted to ¥228.474 million. As a result, total research and development expenses for the third quarter of the current consolidated cumulative period amounted to ¥354.768 million.」

「In development, the Group worked on prototypes of optical electric-field sensors for measuring the intensity of high-frequency radio waves emitted by antennas at 5G base stations, with a view to commercializing the product.」

「The Group conducted technology development, including optical electric-field sensors capable of accurately measuring the intensity of high-frequency radio waves emitted by antennas at 5G base stations.」

「Research and development expenses for the third quarter of the current consolidated cumulative period amounted to ¥120.368 million, reflecting efforts to develop decorative molding technology that accurately transfers extremely fine projections and recesses formed on molds to enable mass production of glossy molded products with a metallic appearance, as well as new products for the increasingly high-speed, high-capacity optical communications market and ultra-small lenses. Meanwhile, product improvements and production technology enhancements in existing business areas are conducted in both business segments, and the expenses incurred for these activities during the period amounted to ¥205.936 million. As a result, total research and development expenses for the third quarter of the current consolidated cumulative period amounted to ¥326.304 million.」

「Research and development expenses for the second quarter of the current consolidated cumulative period amounted to ¥74.923 million, reflecting efforts to develop decorative molding technology that accurately transfers extremely fine projections and recesses formed on molds to enable mass production of glossy molded products with a metallic appearance, as well as new products for the increasingly high-speed, high-capacity optical communications market and ultra-small lenses. Meanwhile, product improvements and production technology enhancements in existing business areas are conducted in both business segments, and the expenses incurred for these activities during the period amounted to ¥134.198 million. As a result, total research and development expenses for the second quarter of the current consolidated cumulative period amounted to ¥209.121 million.」

「Research and development expenses for the first quarter of the current consolidated cumulative period amounted to ¥32.449 million, reflecting efforts to develop decorative molding technology that accurately transfers extremely fine projections and recesses formed on molds to enable mass production of glossy molded products with a metallic appearance, as well as new products for the increasingly high-speed, high-capacity optical communications market and ultra-small lenses. Meanwhile, product improvements and production technology enhancements in existing business areas are conducted in both business segments, and the expenses incurred for these activities during the period amounted to ¥65.858 million. As a result, total research and development expenses for the first quarter of the current consolidated cumulative period amounted to ¥98.307 million.」

「The development of new technologies and products for new business areas is conducted by the Group-wide research and development department and in both business segments, Precision Equipment-related and Optical Products-related. Research and development expenses for the third quarter of the current consolidated cumulative period amounted to ¥105.301 million, reflecting efforts to develop decorative molding technology that accurately transfers extremely fine projections and recesses formed on molds to enable mass production of glossy molded products with a metallic appearance, as well as new products for the increasingly high-speed, high-capacity optical communications market and ultra-small lenses. Meanwhile, product improvements and production technology enhancements in existing business areas are conducted in both business segments, and the expenses incurred for these activities during the period amounted to ¥197.228 million. As a result, total research and development expenses for the third quarter of the current consolidated cumulative period amounted to ¥302.529 million.」

「The development of new technologies and products for new business areas is conducted by the Group-wide research and development department and in both business segments, Precision Equipment-related and Optical Products-related. Research and development expenses for the second quarter of the current consolidated cumulative period amounted to ¥72.673 million, reflecting efforts to develop decorative molding technology that accurately transfers extremely fine projections and recesses formed on molds to enable mass production of glossy molded products with a metallic appearance, as well as new products for the increasingly high-speed, high-capacity optical communications market and ultra-small lenses. Meanwhile, product improvements and production technology enhancements in existing business areas are conducted in both business segments, and the expenses incurred for these activities during the period amounted to ¥130.978 million. As a result, total research and development expenses for the second quarter of the current consolidated cumulative period amounted to ¥203.651 million.」

「The development of new technologies and products for new business areas is conducted by the research and development department within the head office, as well as in both the Precision Equipment-related and Optical Products-related segments. Research and development expenses incurred during the consolidated fiscal year amounted to ¥141.389 million. Meanwhile, product improvements and production technology enhancements in existing business areas are handled by the technical departments of both segments, and the expenses incurred for these activities during the consolidated fiscal year amounted to ¥232.876 million. As a result, total research and development expenses for the consolidated fiscal year amounted to ¥374.266 million.」

「The development of new technologies and products for new business areas is conducted by the Group-wide research and development department and in the Optical Products-related business segment. Research and development expenses for the third quarter of the current consolidated cumulative period amounted to ¥106.235 million, reflecting efforts to develop new products for the increasingly high-speed, high-capacity optical communications market and ultra-small lenses. Meanwhile, product improvements and production technology enhancements in existing business areas are conducted in both the Precision Equipment-related and Optical Products-related business segments, and the expenses incurred for these activities during the period amounted to ¥161.766 million. As a result, total research and development expenses for the third quarter of the current consolidated cumulative period amounted to ¥268.001 million.」

「The development of new technologies and products for new business areas is conducted by the Group-wide research and development department and in both the Precision Equipment-related and Optical Products-related business segments. Research and development expenses for the second quarter of the current consolidated cumulative period amounted to ¥74.537 million, reflecting efforts to develop new products for the increasingly high-speed, high-capacity optical communications market and ultra-small lenses.」

「The development of new technologies and products for new business areas is conducted in both the Precision Equipment-related and Optical Products-related segments. ... Total research and development expenses for the first quarter of the current consolidated cumulative period amounted to ¥81.198 million.」

「The research and development activities of the Group are broadly divided into the development of new technologies and products for new business areas, and product improvements and production technology enhancements in existing segments. As a result, total research and development expenses for the consolidated fiscal year amounted to ¥350.997 million.」