Ookuma Diamond Device

ActiveOn the Japan Radar · not ranked

Diamond devices · Japan

Develops diamond semiconductor power devices that work at high temperature and radiation, for nuclear decommissioning, space and communications equipment.

Semiconductors›diamond devices ookuma-dd.com

Last roundPre-Series A · Oct 2024

Why Ookuma Diamond Device is not ranked yet

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The Radar lists every known eligible company, sorted by date of last round, with no AI judgement. Ookuma Diamond Device enters the ranking once its public data is sufficient for the AI to estimate it. Next Japan edition: 10 Jan 2027.

Funding history

Date	Round	Amount	Type	Investors
Oct 2024	Pre-Series A	amount undisclosed	—	—

Rounds as cited by Uback’s rankings. Equity, debt and grants are shown separately; only equity rounds count towards the valuation anchor.

Uback rankings

How the AI ranks →

Ranking	Tier	Rank	Edition	Next update
Japan · all sectors	Radar	—	Edition 0 · October 2026	10 Jan 2027

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What the AI reads

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Last updated: Oct 2026Report an error

Uback is a content publisher and an aggregator of non-binding expressions of interest. It provides no investment advice, receives no mandate and takes part in no transaction. Rankings, ranges and brackets are editorial estimates produced by AI, purely indicative.