This inventor holds 2 USPTO granted patents. Top assignees: Mitsui Minings & Melting Co., Ltd., Sharp Kabushiki Kaisha Corporation. Active years: 1995-1998.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaharu Ishisaka. Retrieved from https://idiyas.com/inventor/masaharu-ishisaka
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
% Patents Active = 100.0
Average Co-Inventor Count = 3.0
ph-index = 1
Forward Citations = 8(Granted Patents)
Company Filing History:
2 out of 817 Mitsui Minings & Melting Co., Ltd.
2 out of 25,954 
Sharp Kabushiki Kaisha Corporation
where one patent can have more than one assignee
Years Active: 1995-1998
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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: Masaharu Ishisaka. Retrieved from https://idiyas.com/inventor/masaharu-ishisaka
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]