This inventor holds 2 USPTO granted patents. Top assignees: Nec Corporation, Nippon Telegraph and Telephone Corporation, Nippon Telegraph and Telephone Public Corporation. Active years: 1987-1988.
IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshihiko Harafuji. Retrieved from https://idiyas.com/inventor/yoshihiko-harafuji
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 = 2
Forward Citations = 221(Granted Patents)
Company Filing History:
2 out of 36,718 
Nec Corporation
1 out of 5,300 
Nippon Telegraph and Telephone Corporation
1 out of 522 Nippon Telegraph and Telephone Public Corporation
where one patent can have more than one assignee
Years Active: 1987-1988
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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: Yoshihiko Harafuji. Retrieved from https://idiyas.com/inventor/yoshihiko-harafuji
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]