Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10057677 | Electroacoustic transducer and acoustic resistor | Kenzo Tsuihiji, Koichiro Tanoue, Kenji Arai | 2018-08-21 |
| 9872098 | Wiring structure for electroacoustic transducer for digital signal and headphone for digital signal | Koichiro Tanoue, Kenzo Tsuihiji, Kenji Arai | 2018-01-16 |
| 9800976 | Electroacoustic transducer | Kenzo Tsuihiji, Koichiro Tanoue, Kenji Arai | 2017-10-24 |
| 9794682 | Electroacoustic transducer and acoustic resistor | Kenzo Tsuihiji, Koichiro Tanoue, Kenji Arai | 2017-10-17 |
| 9609422 | Headphone unit and ear muff unit | Kenzo Tsuihiji, Koichiro Tanoue, Kenji Arai | 2017-03-28 |
| 8613544 | Band, wristwatch with the band and method of making the band | Masaaki Kitahara, Shinichi Tanaka, Kazumi Nakahara, Katsuyuki Aizawa | 2013-12-24 |
| 5841742 | Optical disk unit using a single demodulator circuit for demodulating two disk players | Akira Tsukihashi, Yutaka Kaneko, Takeshi Aoki, Takashi Iwasaki | 1998-11-24 |
| 4987840 | Incinerator with high combustion rate | — | 1991-01-29 |