COMPANY PROFILE
COMPANY
PROFILE
Company Name | Ookuma Diamond Device Co., Ltd. |
Representative | Naohisa Hoshikawa |
Business Domain | Research and Development of Diamond Semiconductors |
Established | March 1, 2022 |
Location | Head Office Hokudai Business Spring, Kita 21-jo, Nishi 12-chome 2, Kita-ku, Sapporo, Hokkaido 001-0021, Japan Sapporo Office* Collabo Hokkaido E Room, Kita 21-jo Nishi 12-chome, Kita-ku, Sapporo, Hokkaido 001-0021, Japan (*Please visit this location when coming to our company.) ![]() Ookuma Diamond Device First Plant 94-8 Aza-Hara, Oaza-Shimonogami, Okuma-machi, Futaba-gun, Fukushima, 979-1308, Japan (located within the Okuma Central Industrial Zone) Fukushima Branch 230 Aza-Shimizu, Oaza-Shimonogami, Okuma-machi, Futaba-gun, Fukushima, 979-1308, Japan ![]() Tsukuba Laboratory 1-1-1 Umezono, Tsukuba City, Ibaraki, 305-0045, Japan (*located inside the National Institute of Advanced Industrial Science and Technology) ![]() |
Banking Partners | Mizuho Bank, Ltd. Sumitomo Mitsui Banking Corporation Sumitomo Mitsui Trust Bank, Limited Hokkaido Bank, Ltd. Hokuriku Bank, Ltd. Toho Bank, Ltd. THE 77 BANK, Ltd. Joyo Bank, Ltd. |
Major Shareholders | Globis Capital Partners Coral Capital, Inc. Green Co-Invest I, L.P. Astart Inc. Japan Post Bank Spiral Regional Innovation No.1 Investment L.P. MS&AD Ventures Co., Ltd. SMBC Venture Capital, Ltd. FFG Venture Business Partners Co., Ltd. Hokuhoku Capital Co., Ltd. SBI Neo Investment Inc. |
Research Partners | Hokkaido University National Institute of Advanced Industrial Science and Technology (AIST) National Institute for Materials Science (NIMS) High Energy Accelerator Research Organization (KEK) Tohoku University Nagoya University Others |
Awards and Recognitions | September 2023: 2nd Place in “Real Tech Catapult” at ICC KYOTO 2023 February 2024: Selected as a “J-Startup HOKKAIDO” Company (Ministry of Economy, Trade and Industry, METI) March 2024: Special Jury Prize at the “GX Startup & Researcher Pitch Contest” (METI) April 2024: Award Winner at “RISING STAR Meet-up 2024” (Forbes JAPAN) August 2024: Selected for “Forbes Asia 100 To Watch 2024” (Forbes) September 2024: Featured in “100 Amazing Ventures 2024” (Weekly Toyo Keizai) February 2025: Grand Prize in the Startup Category at the 6th IP BASE AWARD (Japan Patent Office) March 2025: Winner of EY Innovative Startup 2025 (Ernst & Young ShinNihon LLC) March 2025: Encouragement Award at the “Entrepreneur Awards of the North” (Sapporo Chamber of Commerce and Industry) March 2025: Selected for “J-Startup (5th Round)” (METI) |
PILOT PLANT
