This inventor holds 3 USPTO granted patents. Top assignees: Konishiroku Photo Industry Co., Ltd., Nippon Steel Chemical & Material Co., Ltd., Tokyo Ohka Kogyo Co., Ltd.. Active years: 1984-2020.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Masatoshi Maeda. Retrieved from https://idiyas.com/inventor/masatoshi-maeda-ijpoxso5
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 = 3.8
ph-index = 2
Forward Citations = 16(Granted Patents)
Location History:
- Hino, JP (1984)
- Kawasaki, JP (1985 - 2020)
Company Filing History:
2 out of 1,252 
Konishiroku Photo Industry Co., Ltd.
1 out of 122 Nippon Steel Chemical & Material Co., Ltd.
1 out of 1,236 Tokyo Ohka Kogyo Co., Ltd.
where one patent can have more than one assignee
Years Active: 1984-2020
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3 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: Masatoshi Maeda. Retrieved from https://idiyas.com/inventor/masatoshi-maeda-ijpoxso5
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]