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General Research of Electronics, Inc.

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USPTO Granted Patents = 102

% Expired Patents = 11.8

Forward Citations = 898

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21 inventors (with patents filed for the assignee):

Kazuyoshi Imazeki (54 out of 54 patents)

Kazuo Kawai (34 out of 37 patents)

Nobuaki Yokoyama (14 out of 16 patents)

4. Koichi Kazami (6 out of 6 patents)

5. Masao Nakano (4 out of 66 patents)

6. Toshiyuki Tanaka (4 out of 77 patents)

7. Yasuo Nagazumi (3 out of 19 patents)

8. Kiyoshi Wakui (2 out of 2 patents)

9. Sadanori Shitara (2 out of 2 patents)

10. Wayne Gilbert (2 out of 2 patents)

11. Fumio Hayashibara (2 out of 2 patents)

12. Masaki Hiratsuka (1 out of 4 patents)

13. N Craig Brown (1 out of 1 patent)

14. Nobuharu Tomita (1 out of 1 patent)

15. Nakano Masao (1 out of 1 patent)

Core Competencies:

Frequency Scanning Receiver

Tuning Circuit

FSK Signal Demodulation

Negative Impedance Circuit

Active Filter

Scanner

AFC Circuit

Radio Transceiver

Signal Encoding

Demodulation Circuit

Antenna

Portable Radio

102 patents: Sort by Forward Citations

1. 7817965 - Scanner with auxiliary non-volatile memory (2010-10-19),

2. 7587182 - Receiver input circuit (2009-09-08),

3. 7415255 - Scanning receiver (2008-08-19),

4. 7088790 - Circuit for detecting a center level of a FSK demodulated signal to correct same (2006-08-08),

5. 7005950 - Negative impedance converter (2006-02-28),

6. 6985053 - Negative resistance circuit (2006-01-10),

7. 6968165 - Frequency scanning receiver permitting quick PPL setting (2005-11-22),

8. 6954123 - Tuning circuit (2005-10-11),

9. 6933775 - Circuit for detecting and correcting central level of FSK demodulation signal (2005-08-23),

10. 6870447 - Tuning circuit (2005-03-22),

11. 6836199 - Tuning circuit (2004-12-28),

12. 6816005 - All pass filter (2004-11-09),

13. 6803812 - Active filter (2004-10-12),

14. D494974 - Scanner (2004-08-25),

15. D494973 - Scanner (2004-08-25),

Company Overview

General Research of Electronics, Inc., based in Tokyo, specializes in the development and manufacturing of advanced frequency scanning receivers. The company focuses on core technologies such as tuning circuits, FSK signal demodulation, and negative impedance circuits. Their expertise extends to active filters, scanners, and AFC circuits, positioning them as a key player in the radio transceiver market. With a commitment to innovation, they contribute significantly to the evolution of electronic communication technologies.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

102 Patents

#534 in Tokyo

#1,109 in Japan

#7,656 in the World

General Research of Electronics, Inc.

Forward Citations = 898

21 inventors:

Kazuyoshi Imazeki (54 out of 54 patents)

Kazuo Kawai (34 out of 37 patents)

Nobuaki Yokoyama (14 out of 16 patents)

4. Koichi Kazami (6 out of 6 patents)

5. Masao Nakano (4 out of 66 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: General Research of Electronics, Inc.. Retrieved from https://idiyas.com/company/general-research-of-electronics

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]

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