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For the Inventor, By the Inventor

Tokyo, Japan

Shigeru Otsuka

This inventor holds 9 USPTO granted patents, plus 2 CIPO patents. Top assignees: Nec Corporation, Nippon Electric Co., Ltd.. Active years: 1982-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeru Otsuka. Retrieved from https://idiyas.com/inventor/shigeru-otsuka-2j8grea8

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

USPTO Granted Patents = 9

% Patents Active = 100.0

 

Average Co-Inventor Count = 1.2

ph-index = 7

Forward Citations = 163(Granted Patents)


Company Filing History:

goldMedal8 out of 36,718 
 
Nec Corporation
 patents
silverMedal1 out of 1,038 
 
Nippon Electric Co., Ltd.
 patents

Years Active: 1982-1998

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9 patents (USPTO):Explore Patents
1. 5818302 - Automatic frequency control oscillation circuit (1998-10-06),
2. 5694092 - Voltage-controlled oscillator including first and second varactors (1997-12-02),
3. 5519710 - Network synchronization for TDMA cellular communication using signals (1996-05-21),
4. 5425031 - Mobile radio communication system (1995-06-13),
5. 5140589 - Battery saving system for interrupting power supplies at intervals (1992-08-18),
6. 4759016 - TDMA communication system having common local path medium and local time (1988-07-19),
7. 4577315 - Power saving system for time-division multiple access radiocommunication (1986-03-18),
8. 4490818 - Repeater station for use in a radio relay system to protect time (1984-12-25),
9. 4365347 - Channel selecting system for use in a multi-channel mobile communication (1982-12-21),
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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