This inventor holds 2 USPTO granted patents. Top assignees: National Institutes for Quantum Science and Technology, Okazaki Manufacturing Company, Teikoku Ion Co., Ltd. Active years: 1992-2025.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Masao Ishikawa. Retrieved from https://idiyas.com/inventor/masao-ishikawa-vhm1sb2y
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 = 5.5
ph-index = 1
Forward Citations = 3(Granted Patents)
Company Filing History:
1 out of 35 National Institutes for Quantum Science and Technology
1 out of 14 Okazaki Manufacturing Company
1 out of 2 Teikoku Ion Co., Ltd
4. 1 out of 2,643
The Furukawa Electric Co., Ltd.
where one patent can have more than one assignee
Years Active: 1992-2025
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2 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: Masao Ishikawa. Retrieved from https://idiyas.com/inventor/masao-ishikawa-vhm1sb2y
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]