Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6584770 | Hydraulic drive system | Yasutaka Tsuruga, Junya Kawamoto, Satoshi Hamamoto, Yasuharu Okazaki, Yukiaki Nagao | 2003-07-01 |
| 6526747 | Hydraulic driving device | Kenichiro Nakatani, Yasutaka Tsuruga, Junya Kawamoto, Satoshi Hamamoto, Yasuharu Okazaki +1 more | 2003-03-04 |
| 6451866 | Spongy rubber body | Yasuyuki Sakyo | 2002-09-17 |
| 6408622 | Hydraulic drive device | Yasutaka Tsuruga, Junya Kawamoto, Satoshi Hamamoto, Yasuharu Okazaki, Yukiaki Nagao | 2002-06-25 |
| 6397591 | Hydraulic driving unit | Yasutaka Tsuruga, Junya Kawamoto, Kenichiro Nakatani, Kiwamu Takahashi, Satoshi Hamamoto +2 more | 2002-06-04 |
| 6266304 | Disc eccentricity measuring apparatus and method thereof and apparatus for recording and/or reproducing disc-shaped recording medium | Shuichi Nagano | 2001-07-24 |
| 6222930 | Method of reproducing sound | Kenji Nakano, Kaneaki Fujishita | 2001-04-24 |
| 6192681 | Hydraulic drive apparatus | Yasutaka Tsuruga, Junya Kawamoto | 2001-02-27 |
| 6176126 | Engine speed control system for construction machine | Yasutaka Tsuruga, Kenichiro Nakatani, Junya Kawamoto | 2001-01-23 |
| 6105367 | Hydraulic drive system | Yasutaka Tsuruga, Junya Kawamoto | 2000-08-22 |
| 5535587 | Hydraulic drive system | Hirohisa Tanaka, Morio Oshina, Atsushi Tanaka | 1996-07-16 |
| 5343197 | Digital-to-analog converter | Toshihiko Masuda | 1994-08-30 |
| 5289049 | Signal input selecting circuits | Kaneaki Fujishita | 1994-02-22 |
| 5251444 | Hydraulic drive system and valve apparatus | Masami Ochiai | 1993-10-12 |
| 5203168 | Hydraulic driving circuit with motor displacement limitation control | Morio Oshina, Mitsuo Sonoda | 1993-04-20 |
| 5161075 | Hub table for a magnetic disk drive device | Kunio Miyazaki, Masayuki Tsuzuku | 1992-11-03 |
| 5072321 | Apparatus for providing uniform attractive force to a magnetic disk hub in a magnetic disk drive | Kunio Miyazaki, Tuzuku Masayuki | 1991-12-10 |
| 5048294 | Safety device for hydraulic closed circuit | Morio Oshina, Masami Ochiai, Koji Nozaki | 1991-09-17 |
| 5021788 | Digital analog converter | Massaaki Ueki, Toshihiko Masuda | 1991-06-04 |
| 5003776 | Hydraulic drive system | Masami Ochiai, Morio Oshina, Mitsuo Sonoda | 1991-04-02 |
| 5003559 | Digital transmission system | Minoru Inayama | 1991-03-26 |
| 4919390 | Solenoid operated valve apparatus | Ken Ichiryu, Masami Ochiai, Nobuhiko Ichiki | 1990-04-24 |
| 4846046 | Hydraulic drive circuit system | Masami Ochiai, Morio Oshina, Mitsuo Sonoda, Koji Nozaki | 1989-07-11 |
| 4813447 | Flow control valve apparatus | Ken Ichiryu, Masami Ochiai, Yuusaku Nozawa, Hideyo Kato | 1989-03-21 |
| 4568124 | Vehicle seat | — | 1986-02-04 |