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Onkyo Corporation

USPTO Granted Patents = 184

% Expired Patents = 71.7

CIPO Patents = 1

EPO Patents = 45

Trademarks = 7

Forward Citations = 686

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157 inventors (with patents filed for the assignee):

Mamoru Sekiya (16 out of 16 patents)

Yoshinori Nakanishi (15 out of 16 patents)

Tadaharu Sunaga (13 out of 13 patents)

4. Tsuyoshi Kawaguchi (12 out of 13 patents)

5. Kazunari Ito (11 out of 11 patents)

6. Susumu Takemura (11 out of 11 patents)

7. Takeshi Fujitani (10 out of 10 patents)

8. Toshinobu Sano (10 out of 10 patents)

9. Hiroyuki Fukuma (9 out of 10 patents)

10. Norimasa Kitagawa (8 out of 8 patents)

11. Youichi Kudoh (8 out of 8 patents)

12. Sadatoshi Hisamoto (8 out of 8 patents)

13. Koichi Sadaie (8 out of 9 patents)

14. Yasushi Ikeda (8 out of 8 patents)

15. Yushi Ono (7 out of 7 patents)

Core Competencies:

Speaker Device

Amplifier

Earphone

Audio Processing

Music Reproducing Device

Vibrator

Firmware Update

Signal Modulation

Sound Field Control

Thermal Protection Circuit

Wireless Communication

184 patents: Sort by Forward Citations

1. 12514531 - Stethoscope (2026-01-06),

2. 11277684 - Diffuser (2022-03-15),

3. 10999662 - Speaker device (2021-05-04),

4. 10897673 - Diaphragm, speaker unit using same, headphones, and earphones (2021-01-19),

5. 10882075 - Vibrator (2021-01-05),

6. 10805735 - Diaphragm, speaker unit using same, headphone and earphone, and diaphragm manufacturing method (2020-10-13),

7. 10805732 - Diaphragm or dust cap and speaker unit (2020-10-13),

8. D891401 - Earphone (2020-07-28),

9. 10713032 - Firmware update system, server, and electronic device (2020-07-14),

10. 10602274 - Audio input/output device (2020-03-24),

11. 10593499 - Relay drive circuit with a current mirror circuit (2020-03-17),

12. 10575079 - Speaker device (2020-02-25),

13. 10567881 - Vibrator and elastic coupling member forming same (2020-02-18),

14. D875064 - Amplifier rear face (2020-02-11),

15. 10560785 - Electronic device (2020-02-11),

Onkyo Corporation, headquartered in Osaka, Japan, specializes in audio processing technologies, focusing on high-fidelity sound reproduction. The company develops a range of audio equipment, including speaker devices, amplifiers, and earphones, catering to both consumer and professional markets. Onkyo is recognized for its innovations in music reproducing devices and signal modulation, enhancing the auditory experience through advanced firmware updates and integrated vibrators. The organization is committed to delivering quality audio solutions that resonate with audiophiles and casual listeners alike.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

Onkyo Corporation

184 Patents

#81 in Osaka

#752 in Japan

#4,545 in the World

Onkyo Corporation

Forward Citations = 686

157 inventors:

Mamoru Sekiya (16 out of 16 patents)

Yoshinori Nakanishi (15 out of 16 patents)

Tadaharu Sunaga (13 out of 13 patents)

4. Tsuyoshi Kawaguchi (12 out of 13 patents)

5. Kazunari Ito (11 out of 11 patents)

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