Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5131032 | Echo canceller and communication apparatus employing the same | Tomohiro Esaki | 1992-07-14 |
| 4857365 | Method of manufacturing modified wood material | Shozo Hirao, Hiroaki Usui, Takashi Nakai, Hiroyuki Ishikawa, Satoru Konishi | 1989-08-15 |
| 4731265 | Method of manufacturing modified wood material | Shozo Hirao, Ayumu Yasuda, Takashi Nakai, Kazuo Seto | 1988-03-15 |
| 4482880 | Iron core for three-phase electromagnetic induction machine | Hidenori Kawakami, Keiji Tsuruta | 1984-11-13 |
| 4481124 | Thermal shock resistant porous sound absorbing body | Shosuke Koga, Mitsuru Koketsu, Seigo Satomi | 1984-11-06 |
| 4401971 | Alarm device for a vehicle including priority control for plural alarm conditions | Tadashi Saito, Tohru Sampei, Akihiro Asada, Syunji Iwasaki, Shigemitsu Higuchi +2 more | 1983-08-30 |
| 4390747 | Speech analyzer | Tohru Sampei, Akihiro Asada, Syunji Iwasaki | 1983-06-28 |
| 4388491 | Speech pitch period extraction apparatus | Akira Ichikawa | 1983-06-14 |
| 4340781 | Speech analysing device | Akira Ichikawa, Kazuo Nakata, Akira Nakajima, Kazuhiro Umemura | 1982-07-20 |