Tokyo, Japan

Teac Corporation


USPTO Granted Patents = 1,030

% Expired Patents = 19.7


Trademarks = 18

Forward Citations = 7,678

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443 inventors (with patents filed for the assignee):

goldMedal Masafumi Ito (187 out of 198 patents)

silverMedal Shigeru Hasegawa (104 out of 111 patents)

bronzeMedal Minoru Sube (91 out of 92 patents)

4.  Haruki Takita (75 out of 76 patents)

5.  Akira Mashimo (71 out of 84 patents)

6.  Hiroyuki Watanabe (69 out of 70 patents)

7.  Hiroshi Tsuyuguchi (53 out of 54 patents)

8.  Katsuhiro Takashima (53 out of 53 patents)

9.  Yukio Iikura (49 out of 50 patents)

10.  Hidetoshi Kabasawa (43 out of 100 patents)

11.  Yasunobu Shimizu (36 out of 74 patents)

12.  Takahiro Sakaguchi (30 out of 40 patents)

13.  Yoshiaki Sakai (29 out of 29 patents)

14.  Takashi Watanabe (28 out of 34 patents)

15.  Shinichi Fujisawa (26 out of 50 patents)


Core Competencies:
Audio Recorder
Digital Mixer
Multitrack Recorder
Audio Signal Processor
Wireless LAN Function
Playback Device
Sound Image Localization
Electronic Device
Audio Equipment
Control Device
Portable Recording
Stereo Microphone

1,030 patents:

TEAC Corporation is a Japanese electronics company that specializes in manufacturing audio equipment, data storage devices, optical disc drives, and other products. With a history dating back to 1953, TEAC has established itself as a trusted brand in the industry, known for its high-quality and innovative solutions. Their product range includes audio systems, headphones, portable media players, professional audio equipment, digital storage devices, and more. By leveraging advanced technologies and a commitment to customer satisfaction, TEAC continues to deliver cutting-edge products that cater to the diverse needs of consumers and professionals worldwide.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 29 2026

Teac Corporation
1,030 Patents

#115 in Tokyo

#226 in Japan

#991 in the World

Tokyo, JP
Tokyo, Japan
Forward Citations = 7,678

443 inventors:

Please report any incorrect information to [email protected]
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