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Sansui Electric Co., Ltd.

USPTO Granted Patents = 71

Trademarks = 2

Forward Citations = 964

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38 inventors (with patents filed for the assignee):

Susumu Takahashi (16 out of 129 patents)

Hirotaka Kurata (6 out of 10 patents)

Yoshinobu Asai (6 out of 6 patents)

4. Fumio Kobayashi (5 out of 13 patents)

5. Kazuhito Ohtomo (5 out of 5 patents)

6. Susumu Tanaka (4 out of 17 patents)

7. Ryosuke Ito (4 out of 4 patents)

8. Akira Kato (4 out of 5 patents)

9. Takaaki Yamamoto (3 out of 4 patents)

10. Hiroshi Iida (3 out of 8 patents)

11. Masao Suzuki (3 out of 100 patents)

12. Yuji Ikeda (2 out of 12 patents)

13. Yasuhiro Fujimoto (2 out of 9 patents)

14. Hiroshi Tabata (2 out of 5 patents)

15. Naokatsu Sugiura (2 out of 2 patents)

Core Competencies:

Speaker Technology

PCM Transmission

AM Stereo Transmission

Digital Waveform Shaping

Power Amplifier Circuits

Record Player Mechanisms

Brushless DC Motors

Synchronous Generators

Loudspeaker Systems

Audio Signal Processing

Magnetic Recording Devices

Frequency Synthesizers

71 patents: Sort by Forward Citations

1. 5206466 - Diaphragm for speaker (1993-04-27),

2. 4759038 - PCM transmission system (1988-07-19),

3. 4716590 - AM stereo transmission method and apparatus (1987-12-29),

4. 4633483 - Near-instantaneous companding PCM involving accumulation of less (1986-12-30),

5. 4626936 - Relative velocity control device for magnetic recording and reproducing (1986-12-02),

6. 4585952 - Digital waveform shaping circuit (1986-04-29),

7. 4580278 - Read clock producing system (1986-04-01),

8. 4546394 - Signal reconstruction circuit for digital signals (1985-10-08),

9. 4517528 - Amplifier circuit driven by ground isolated power supply (1985-05-14),

10. 4475185 - Record player with vibration cancellation mechanism (1984-10-02),

11. 4425638 - Dual turntable record player with torque cancellation (1984-01-10),

12. 4401951 - Bias circuit for use in a single-ended push-pull circuit (1983-08-30),

13. 4367442 - Distortion correction circuit for a power amplifier (1983-01-04),

14. 4282401 - System for transmission and reception of discrete four channel stereo (1981-08-04),

15. 4229705 - Differential amplifiers (1980-10-21),

Sansui Electric Co., Ltd. is a Japanese manufacturer of consumer electronics and home appliances. Founded in 1944, Sansui has been delivering innovative and reliable products for over 75 years. The company specializes in manufacturing televisions, audio equipment, refrigerators, air conditioners, and other household appliances. Sansui values quality, performance, and user-friendly designs, aiming to enhance the lives of their customers worldwide.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

71 Patents

#576 in Tokyo

#1,361 in Japan

#10,065 in the World

Sansui Electric Co., Ltd.

Forward Citations = 964

38 inventors:

Susumu Takahashi (16 out of 129 patents)

Hirotaka Kurata (6 out of 10 patents)

Yoshinobu Asai (6 out of 6 patents)

4. Fumio Kobayashi (5 out of 13 patents)

5. Kazuhito Ohtomo (5 out of 5 patents)

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