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For the Inventor, By the Inventor

Tokyo, Japan

Shigeki Hayasaka

This inventor holds 7 USPTO granted patents. Top assignee: Nec Corporation. Active years: 1989-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeki Hayasaka. Retrieved from https://idiyas.com/inventor/shigeki-hayasaka

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 7

% Patents Active = 100.0

Average Co-Inventor Count = 1.6

ph-index = 6

Forward Citations = 144(Granted Patents)


Company Filing History:

goldMedal7 out of 36,684 
 
Nec Corporation
 patents

Years Active: 1989-2002

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7 patents (USPTO):Explore Patents
1. D464032 - Portable wireless telephone (2002-10-09),
2. D454550 - Portable wireless telephone (2002-03-20),
3. 6320961 - Hinge mechanism for a foldable portable telephone (2001-11-20),
4. D353593 - Paging receiver (1994-12-20),
5. D339349 - Display pager (1993-09-14),
6. 5044965 - Output terminal structure for a paging receiver (1991-09-03),
7. D303669 - Display pager (1989-09-26),
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]
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