This inventor holds 4 USPTO granted patents. Top assignees: Nippon Steel Corporation, Japan Metals & Chemicals Co., Ltd.. Active years: 1977-1987.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Hidetake Ishikawa. Retrieved from https://idiyas.com/inventor/hidetake-ishikawa
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Calculating rank
% Patents Active = 100.0
Average Co-Inventor Count = 5.1
ph-index = 3
Forward Citations = 20(Granted Patents)
Location History:
- Kitakyushu, JA (1977)
- Fukuoka, JP (1983)
- Fukuokaken, JP (1986)
- Kitakyusyushi, JP (1987)
Company Filing History:
4 out of 3,727 Nippon Steel Corporation
2 out of 50 Japan Metals & Chemicals Co., Ltd.
where one patent can have more than one assignee
Years Active: 1977-1987
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4 patents (USPTO):Explore Patents
Profile summary based on public USPTO records.
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]
IDiyas Innovation Intelligence. (2026). Inventor Profile: Hidetake Ishikawa. Retrieved from https://idiyas.com/inventor/hidetake-ishikawa
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]
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]