This inventor holds 3 USPTO granted patents. Top assignees: Kureha Kagaku Kogyo Kabushiki Kaisha, Kureha Chemical Industry Company, Limited, Mushima Paper Co., Ltd.. Active years: 1976-1988.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuo Maruyama. Retrieved from https://idiyas.com/inventor/nobuo-maruyama
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 = 2.6
ph-index = 3
Forward Citations = 119(Granted Patents)
Location History:
- Tokyo, JA (1976)
- Tokyo, JP (1987 - 1988)
Company Filing History:
2 out of 776 
Kureha Kagaku Kogyo Kabushiki Kaisha
1 out of 128 
Kureha Chemical Industry Company, Limited
1 out of 1 Mushima Paper Co., Ltd.
where one patent can have more than one assignee
Years Active: 1976-1988
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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: Nobuo Maruyama. Retrieved from https://idiyas.com/inventor/nobuo-maruyama
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]