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Nakamura Choukou (6166) · TargetWorsenedLatest Earnings (2026-08-10): "Advanced"

Strengthening profitability by expanding sales of diamond wire and improving production efficiency

First written in FY2016. 14 of 28 entries say "Advanced", first in FY2018-Q1. Latest entry: 2026-08-10.

28entries
11years
3from disclosures
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How it moved
ProgressHeldSoftenedWorseRestatedFY2020-Q3AdvancedFY2022-Q1 – FY2023-Q3AdvancedFY2024-Q2 – FY20252016: 120162017: 320172018: 320182019: 420192020: 120202021: 320212022: 220222023: 320232024: 320242025: 220252026: 32026
Same theme, other companies
Enhancing earnings power through expanded diamond wire sales and improved production efficiencyA theme 1 companies write about · 1 as a headwind · 0 as a tailwind

No other company in this theme has enough history to compare yet.

Full recordFilings, disclosures and news, newest first
  1. FY2026-H1WorsenedAnnual report

    「In the D-Next Business, as in the first quarter, demand for diamond wire declined and sales remained weak during the current interim period because the sluggish semiconductor and power semiconductor markets reduced operating rates at major domestic customers' plants. As a result, revenue was ¥108 million, down 12.4% year on year, and the segment loss was ¥62 million, compared with a segment loss of ¥66 million in the same period of the previous year.」

    The sluggish semiconductor and power semiconductor markets depressed demand for and sales of diamond wire, resulting in a 12.4% year-on-year decline in revenue. The segment loss narrowed slightly from the same period of the previous year, but the segment remained in the red.
  2. FY2025AdvancedAnnual report

    「Our diamond wire for power semiconductors and difficult-to-cut materials has been formally adopted by multiple companies, and progress in developing new customers has also supported steady sales growth.」

    In the D-Next Business, transitioned from the solar power generation business, products for power semiconductors and difficult-to-cut materials were formally adopted by multiple companies, while new-customer development progressed and sales grew.
  3. FY2025-H1AdvancedAnnual report

    「The number of companies formally adopting our diamond wire for power semiconductors and difficult-to-cut materials continues to increase, and mass-production adoption is progressing among major and mid-sized domestic companies. Customer share is also expanding, and sales volumes are increasing steadily.」

    In the D-Next Business, transitioned from the solar power generation business, formal adoption, mass-production adoption, customer share and sales volumes for diamond wire for power semiconductors and difficult-to-cut materials continued to expand.
  4. FY2024AdvancedAnnual report

    「The number of companies formally adopting our diamond wire for power semiconductors and difficult-to-cut materials continues to increase, and mass-production adoption is progressing, mainly among major domestic customers. Our share within customers is also expanding steadily, and sales volumes are increasing steadily.」

    In the D-Next Business, transitioned from the solar power generation business, formal adoption, mass-production adoption, customer share and sales volumes for diamond wire for power semiconductors and difficult-to-cut materials all expanded.
  5. FY2024-Q3AdvancedAnnual report

    「In the D-Next Business, the number of companies formally adopting our diamond wire for semiconductors and difficult-to-cut materials continues to increase. During the cumulative third quarter of the current consolidated fiscal year, we conducted mass-production sales to a total of 5 major customers with strong expectations for expanded sales.」

    The number of mass-production customers for diamond wire for semiconductors and difficult-to-cut materials increased from a total of 4 major customers in the previous quarter to 5.
  6. FY2024-Q2AdvancedAnnual report

    「During the cumulative second quarter of the current consolidated fiscal year, we conducted mass-production sales to a total of 4 major customers with strong expectations for expanded sales.」

    For diamond wire for semiconductors and difficult-to-cut materials, following the transition from the solar power generation business, the number of mass-production customers expanded from 1 new major domestic customer to a total of 4 major customers.
  7. FY2024-Q1ReframedAnnual report

    「After withdrawing from the production and sales business for diamond wire used in solar power generation, we changed our business policy and worked to launch new production and sales businesses for semiconductor diamond wire and diamond wire manufacturing equipment. During the current consolidated fiscal year, in order to make these new businesses profitable and complete our structural reforms, we changed the segment name to the D-Next Business, meaning the next generation of diamond wire-related business, and will pursue the launch of the business with greater determination.」

    For the business transitioned from production and sales for solar power generation to semiconductor products and manufacturing equipment, the company stated its policy of making the business profitable and completing structural reforms, and also changed the segment name to the D-Next Business.
  8. FY2023-Q3AdvancedAnnual report

    「The number of companies formally adopting our semiconductor diamond wire has gradually increased, accompanied by higher sales volumes. Regarding sales of the new diamond wire manufacturing equipment, PHX-01, acceptance procedures for a sales project involving a Chinese diamond wire manufacturer were completed, and the consideration was recognized as revenue.」

    Following the business model transition, the number of companies formally adopting semiconductor diamond wire and sales volumes continued to increase. In the PHX-01 sales project, acceptance was completed and the consideration was recognized as revenue.
  9. FY2023-Q2AdvancedAnnual report

    「The number of companies formally adopting our semiconductor diamond wire has gradually increased, accompanied by higher sales volumes. Regarding sales of the new diamond wire manufacturing equipment, PHX-01, part of the consideration from a sales project involving a Chinese diamond wire manufacturer was recognized as revenue. As a result, revenue was ¥54 million, up 448.8% year on year, and the segment loss was ¥116 million, compared with a segment loss of ¥210 million in the same period of the previous year.」

    The number of companies formally adopting semiconductor diamond wire and sales volumes increased, while part of the consideration from the PHX-01 sales project to a Chinese manufacturer was recognized as revenue. Revenue from the Electronic Materials Slicing-Related Business was ¥54 million, although the segment remained loss-making.
  10. FY2023-Q1AdvancedAnnual report

    「The number of companies formally adopting our semiconductor diamond wire has gradually increased, accompanied by higher sales volumes of diamond wire.」

    Following the transition from solar power generation products, the number of companies formally adopting semiconductor diamond wire increased, as did sales volumes. Revenue from the Electronic Materials Slicing-Related Business was ¥18 million, up 170.2% year on year.
  11. FY2022-Q2AdvancedAnnual report

    「We have begun selling semiconductor diamond wire to some customers and are providing samples to develop new customers.」

    Following the shift away from the solar power generation business, sales of semiconductor diamond wire began with some customers, and samples were provided to prospective new customers.
  12. FY2022-Q1AdvancedAnnual report

    「Sales of the semiconductor diamond wire under development increased to ¥6 million, up ¥6 million from the same period of the previous year, as some manufacturers of difficult-to-cut materials decided to adopt the product.」

    Under the new business model following the shift away from solar power generation products, semiconductor diamond wire was adopted by some manufacturers of difficult-to-cut materials.
  13. FY2021ReframedAnnual report

    「In response to the sharp decline in diamond wire market prices in China, we withdrew from the diamond wire business for solar power generation in December 2019. We are now transitioning our business model by developing and selling diamond wire manufacturing equipment, while also developing, manufacturing and selling diamond wire for semiconductors, drawing on our experience and expertise in diamond wire manufacturing.」

    The focus shifted from the previous policy of expanding sales and production of diamond wire for solar power generation to selling manufacturing equipment after withdrawing from production and transitioning the business model toward semiconductor products.
  14. FY2020-Q3RestatedAnnual report

    「Going forward, we will seek to secure stable earnings by establishing a new profit-generation model that leverages our ultrafine diamond wire production technology.」

    While withdrawing from the diamond wire production business, the company continued to present a policy of pursuing new earnings opportunities using ultrafine wire production technology.
  15. FY2020-Q2ReframedAnnual report

    「We also pursued structural reforms, including the resolution on 13 September 2019 to withdraw from the diamond wire production business.」

    The focus shifted from the previous policy centered on expanding diamond wire sales and improving production efficiency to withdrawing from the production business itself and establishing new sources of earnings using ultrafine wire production technology.
  16. FY2020-Q1RestatedAnnual report

    「We resolved to close the Okinawa Plant and Izumi Plant No. 2, which produce diamond wire, and decided to focus on producing ultrafine diamond wire.」

    The earnings-preservation policy presented in FY2019, involving the closure of production sites and a focus on ultrafine products, continued to be pursued in the current quarter.
  17. FY2019ReframedAnnual report

    「As an immediate objective, we will work to eliminate the negative net worth at an early stage. To this end, we will seek to secure earnings by limiting production to ultrafine diamond wire, while establishing a profit-generation model that leverages the superiority of our diamond wire production technology.」

    The focus shifted from strengthening profitability mainly through expanded sales and improved production efficiency to a plan that prioritizes the early elimination of the negative net worth and secures earnings by limiting production to ultrafine products and establishing a new profit-generation model.
  18. FY2019-Q3WorsenedAnnual report

    「As noted above, in the Electronic Materials Slicing-Related Business, sales volumes have been recovering as we developed new customers and expanded sales of ultrafine diamond wire. However, the impact of falling selling prices remained substantial, and profitability did not recover.」

    Although new-customer development and sales volumes showed signs of recovery, the impact of falling selling prices was substantial. The segment posted a loss of ¥3,551 million, and profitability did not recover.
  19. FY2019-Q2WorsenedAnnual report

    「As noted above, in the Electronic Materials Slicing-Related Business, the business environment deteriorated as the Chinese market cooled rapidly, and the market price of diamond wire fell. As a result, shipments of diamond wire, our core product, declined sharply, and we recorded a write-down of related inventory as selling prices fell.」

    Shipments and selling prices of diamond wire continued to decline, and a write-down of related inventory was also recorded. The business posted a segment loss of ¥3,184 million.
  20. FY2019-Q1WorsenedAnnual report

    「As noted above, in the Electronic Materials Slicing-Related Business, shipments of diamond wire, our core product, fell sharply as the Chinese market cooled rapidly. In addition, we recorded an inventory write-down of ¥1,452 million as selling prices declined. As a result, revenue was ¥724 million, down 65.1% year on year, and the segment posted a loss of ¥1,761 million, compared with segment profit of ¥71 million in the same period of the previous year.」

    Efforts to strengthen profitability through expanded diamond wire sales and improved production efficiency were offset by the sudden cooling of the Chinese market and falling selling prices, resulting in a ¥1,452 million write-down of related inventory. The Electronic Materials Slicing-Related Business swung from segment profit in the same period of the previous year to a loss of ¥1,761 million.
  21. FY2018-Q3AdvancedAnnual report

    「Profit also improved significantly year on year, as revenue growth provided a boost and we vigorously pursued cost-reduction measures.」

    The Electronic Materials Slicing-Related Business reported revenue of ¥7,721 million, up 322.0% year on year, and segment profit of ¥1,253 million, compared with a segment loss of ¥1,343 million in the same period of the previous year, thereby returning to profitability.
  22. FY2018-Q2AdvancedAnnual report

    「In the electronic materials slicing-related business, the flagship diamond wire product rapidly gained acceptance not only in its traditional market, monocrystalline silicon wafers, but also in the newly developed market for polycrystalline silicon wafers. In addition, increased production resulting from the full-scale operation of the Okinawa plant and other factors led to substantial year-on-year increases in both orders and sales volume. In terms of earnings, in addition to the effect of higher sales, the results of cost-reduction measures pursued since the previous fiscal year brought about a substantial improvement, with the business moving from a loss in the same period of the previous year to profitability.」

    The electronic materials slicing-related business recorded net sales of ¥4,820 million and segment profit of ¥629 million, representing substantial improvements in orders, sales volume, and profitability from net sales of ¥1,007 million and segment loss of ¥158 million in the same period of the previous year.
  23. FY2018-Q1AdvancedAnnual report

    「In terms of earnings, in addition to the effect of higher sales, the cost-reduction measures pursued since the previous fiscal year produced a certain level of results, enabling the Company to return to profitability from a loss in the previous fiscal year.」

    Driven by growing demand for diamond wire and the results of cost-reduction measures, the electronic materials slicing-related business recorded net sales of ¥2,076 million and segment profit of ¥71 million, returning to profitability from a loss in the same period of the previous year.
  24. FY2017-Q3RestatedAnnual report

    「In addition, by further reducing the diameter of diamond wire, we will work to differentiate ourselves from competitors, including manufacturers in China, establish a system for the stable supply of high-value-added products, and improve profit margins.」

    The policy of strengthening earnings was reaffirmed through thinner wire, stable supply of high-value-added products, and improved profit margins. However, this filing does not show evidence of target achievement.
  25. FY2016First statedAnnual report

    「We will invest capital in the solar-cell field and work to strengthen earnings by further expanding sales of diamond wire and improving production efficiency.」

    The policy is to invest capital and improve production efficiency around the flagship product.
Moved together

"Reducing Interest-Bearing Debt and Improving the Equity Ratio" moved the same way as this thread, in the same document, in 14 of its 28 moves.

14131311109★123456
  1. ★This thread
  2. 1Reducing Interest-Bearing Debt and Improving the Equity Ratio14×
  3. 2Recovery in the Specialized Precision Equipment Business and Development of New Customers13×
  4. 3FY2016 performance improvement and expansion of the electronic material slicing-related business13×
  5. 4Large-Scale Capital Investment and the Risks of Excess Capacity and Impairment11×
  6. 5Strengthening the Profitability of Existing Businesses and Implementing the Growth Strategy10×
  7. 6Thinner, Higher-Performance Diamond Wire9×

★ is this thread; numbers match the list above. The number on a line is how many documents both moved the same way in; lines between the other threads count the documents they moved together in too. Threads that move together often sit closer.

When this could move next
No upcoming earnings preview for Nakamura Choukou yet. It last moved in the Earnings of 2026-08-10: "Advanced".
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Strengthening profitability by expanding sales of diamond wire and improving production efficiency | NAKAMURA CHOUKOU CO.,LTD. (6166) | Komori