This inventor holds 3 USPTO granted patents. Top assignees: Agency of Industrial Science and Technology, Hokkaido Soda Co., Ltd., Fuji Chemical Industry Co., Ltd.. Active years: 1977-1980.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Shoichiro Yokoyama. Retrieved from https://idiyas.com/inventor/shoichiro-yokoyama
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 = 4.0
ph-index = 2
Forward Citations = 23(Granted Patents)
Location History:
- Tokyo, JA (1977)
- Musashi-Murayama, JP (1979 - 1980)
Company Filing History:
3 out of 1,430 
Agency of Industrial Science and Technology
2 out of 3 Hokkaido Soda Co., Ltd.
1 out of 25 
Fuji Chemical Industry Co., Ltd.
where one patent can have more than one assignee
Years Active: 1977-1980
Loading Chart...
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: Shoichiro Yokoyama. Retrieved from https://idiyas.com/inventor/shoichiro-yokoyama
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]