Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6760660 | Navigation apparatus having numerical display | Hiroyuki Morita, Masaya Yoneyama, Syunsuke Kariya, Osamu Ohkubo, Isao Iwasaki +1 more | 2004-07-06 |
| 6679365 | Viscous Fluid Coupling | Hirofumi Katoh, Kenzi Ohhara, Yasuo Fujita | 2004-01-20 |
| 6574337 | Adaptive echo canceler undoing adaptations made during double-talk | — | 2003-06-03 |
| 6474458 | Viscous fluid coupling | Hirofumi Katoh, Kenzi Ohhara, Yasuo Fujita | 2002-11-05 |
| 6305519 | Viscous fluid coupling | Hirofumi Katoh, Kenzi Ohhara, Yasuo Fujita | 2001-10-23 |
| 5803221 | Viscous fluid clutch | Kenji Ohhara, Hirofumi Katoh, Yasuo Fujita | 1998-09-08 |
| 5781296 | Closed loop type fiber optic gyroscope for measuring absolute rotation by delta serrodyne wave phase modulation | Kanshi Yamamoto, Takeshi Hojo, Yoshiyuki Okada, Isao Masuzawa | 1998-07-14 |
| 5638439 | Adaptive filter and echo canceller | Kenichi Shindate | 1997-06-10 |
| 5499706 | Viscous fluid clutch with auxiliary reservoir | — | 1996-03-19 |
| 5416976 | Gyro compass | Fuyuki Hane, Takeshi Hojo, Mamoru Akimoto, Kazushige Murabayashi | 1995-05-23 |
| 5386436 | Synchronization system for use in digital transmission system | Keiichiro Hijino, Hiroshi Wada, Masahisa Iida | 1995-01-31 |
| 5272815 | Gyro compass | Fuyuki Hane, Takeshi Hojo, Mamoru Akimoto, Kazushige Murabayashi | 1993-12-28 |
| 5200727 | Force generating apparatus | Mitsuru Katoh, Michio Fukano, Takeshi Hojo | 1993-04-06 |
| 4908793 | Storage apparatus including a semiconductor memory and a disk drive | Hirotsugu Yamagata, Takafumi Oka, Masafumi Nozawa | 1990-03-13 |
| 4879918 | Gyro compass | Takeshi Hojo, Kanshi Yamamoto, Kazushige Murabayashi, Mamoru Akimoto, Michio Fukano | 1989-11-14 |
| 4669323 | Erector | Takeshi Hojo | 1987-06-02 |
| 4641354 | Apparatus for recognizing and displaying handwritten characters and figures | Yasushi Fukunaga, Soshiro Kuzunuki, Hiroshi Shojima, Takanori Yokoyama, Kazuyoshi Koga +1 more | 1987-02-03 |
| 4471665 | Gyro apparatus | Takeshi Hojo | 1984-09-18 |