Komori
Other Disclosures7746OKAMOTO GLASS CO.,LTD.Electrical Equipment and Precision Instruments

Supplementary Information on the Adoption of Glass Pressure Vessels for the “D-Egg” Project under the Antarctic “IceCube” Upgrade Plan

Regarding the previously announced adoption of 岡本硝子’s glass pressure vessels for Chiba University’s and others’ “D-Egg” project on 13 February, supplementary information was added because The Nikkei reported completion of the IceCube upgrade work and the use of the company’s glass products. This is not an announcement of a new contract or product change.

Worth reading
67In focus
0–100. This measures how worthwhile something is to read, not how good or bad the company is.
Direction
Neutral
Direction inferred from the company’s description.
Scale
—
Displayed only when the document provides numerical figures.
Wording
Definitive
How definitive the wording is.

Announced details

D-Egg用ガラス耐圧容器
Applicable field (uses covered by this announcement)

南極の氷床下に設置するニュートリノ観測装置、極地・高圧環境下の科学研究

Launch date2026年3月3日(日本経済新聞による報道日。IceCube改良工事は完了と報じられた)
What the company reported numerically
Usage history

D-Eggは新設された600台超の新型高感度検出器の約4割に使用された(採用実績)

Relationship between the counterparty and the company
OKAMOTO GLASS CO.,LTD.7746
Relationship with the Company

岡本硝子が製造したガラス耐圧容器が、D-Eggの主要構成部材として採用された。

CounterpartyInternational Research Center for Hadron Astrophysics, Chiba UniversityIceCube実験国際共同研究

千葉大学ハドロン宇宙国際研究センターをはじめとする国際共同研究。IceCube実験は14か国58機関が参加する国際プロジェクト。

Location (as indicated in this announcement)

南極点直下の氷床

新型高感度検出器600台超。D-Eggはその約4割。設置深度は最大約2,600メートル。
Impact on Business Performance

The impact on consolidated results for the fiscal year ending March 2026 will be minor.

The company does not address Contract Value / Offering price.

Source (materials cited by the company)

日本経済新聞 2026年3月3日朝刊22ページ「サイエンス・フロンティア」欄、千葉大学ニュースリリース

Announced details
ItemDetails
Names of Products / Services CoveredD-Egg用ガラス耐圧容器
CounterpartyInternational Research Center for Hadron Astrophysics, Chiba University, IceCube実験国際共同研究
Counterparty overview千葉大学ハドロン宇宙国際研究センターをはじめとする国際共同研究。IceCube実験は14か国58機関が参加する国際プロジェクト。
Relationship with the Company岡本硝子が製造したガラス耐圧容器が、D-Eggの主要構成部材として採用された。
Launch date2026年3月3日(日本経済新聞による報道日。IceCube改良工事は完了と報じられた)
Applicable area南極の氷床下に設置するニュートリノ観測装置、極地・高圧環境下の科学研究
Location南極点直下の氷床
Location scale新型高感度検出器600台超。D-Eggはその約4割。設置深度は最大約2,600メートル。
Usage historyD-Eggは新設された600台超の新型高感度検出器の約4割に使用された(採用実績)
Impact on Business PerformanceThe impact on consolidated results for the fiscal year ending March 2026 will be minor.
Source日本経済新聞 2026年3月3日朝刊22ページ「サイエンス・フロンティア」欄、千葉大学ニュースリリース
Items this document does not state (7)
Contract ValueOffering priceContract DateAward/certification nameAwarding / certifying bodyRegistration number and expiry dateQuantitative Effects

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

日本経済新聞のサイエンス・フロンティア欄でIceCube改良工事の完了と岡本硝子製ガラスの活用が報じられたため。

How to read this page

This is not the documentKomori reads the disclosure the company filed and writes this summary. Figures are as stated by the company and are not audited.
Weight is not a verdictIt measures how much this changes what the company had already told the market. It is not a view on the shares.
Corrections happenIf the company reissues this disclosure, the page is rebuilt from the corrected version and the revision number moves up.
Supplementary Information on the Adoption of Glass Pressure Vessels for the “D-Egg” Project under the Antarctic “IceCube” Upgrade Plan | OKAMOTO GLASS CO.,LTD. (7746) timely disclosure | Komori