Company Badge
USPTO Data Jan 1 1976 - Oct 20 2026
1 Patents
#32 in Sapporo
#15,759 in Japan
Ookuma Diamond Device Inc.
Forward Citations = 0
7 inventors:
Ookuma Diamond Device Inc.
Forward Citations = 0
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7 inventors (with patents filed for the assignee):
Hideaki Yamada (1 out of 6 patents)
Junichi Kaneko (1 out of 3 patents)
Shinya Ohmagari (1 out of 1 patent)
4. Hitoshi Umezawa (1 out of 1 patent)
5. Naohisa Hoshikawa (1 out of 1 patent)
6. Takahiro Yamaguchi (1 out of 1 patent)
7. Hitoshi Koizumi (1 out of 1 patent)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ookuma Diamond Device Inc.. Retrieved from https://idiyas.com/company/ookuma-diamond-device
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]