Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11002570 | Fixed element and position detection device | Taku Ueda, Yoshihiro Suzuki, Yoshihiro Natsume, Hisakazu Kato | 2021-05-11 |
| 8983099 | Electrostatic loudspeaker | Yasuaki Takano, Kunimasa Muroi | 2015-03-17 |
| 8666097 | Electrostatic speaker | Hiromi Ichikawa | 2014-03-04 |
| 8320601 | Earphone device and sound generating apparatus equipped with the same | Souichi Takigawa, Masahiro Sugiura, Yasuaki Takano | 2012-11-27 |
| 8270657 | Earphone device and sound generating apparatus equipped with the same | Souichi Takigawa, Masayoshi Yamashita, Nobushiro Aiba, Tsuneyasu Demukai | 2012-09-18 |
| 8090134 | Earphone device, sound tube forming a part of earphone device and sound generating apparatus | Souichi Takigawa, Tsuneyasu Demukai | 2012-01-03 |
| 5863206 | Apparatus for reproducing video, audio, and accompanying characters and method of manufacture | Sadayuki Narusawa | 1999-01-26 |