Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11196356 | Power conversion device | Kouichi Yahata | 2021-12-07 |
| 10840800 | Power conversion device | Koichi Yahata | 2020-11-17 |
| 9742304 | Driver board and power converter | Takeshi Kato, Masashige Tsuji | 2017-08-22 |
| 9422844 | Exhaust purification device for engine | Yasuko Suzuki, Hiroaki Fujita, Shinichi Saito, Yoshio Nakayama | 2016-08-23 |
| 8683783 | Exhaust purification apparatus for internal combustion engine | Yasuko Suzuki, Hiroaki Fujita, Shinichi Saito | 2014-04-01 |
| 8359838 | Exhaust purification apparatus for an engine | Satoshi Yamazaki, Yoshinaka Takeda, Hiroaki Fujita, Shinichi Saito | 2013-01-29 |
| 8356472 | Exhaust purification device for hybrid electric vehicle | Minehiro Murata, Yoshinaka Takeda, Hiroaki Fujita, Yusuke Horii | 2013-01-22 |
| 8196394 | Exhaust purification apparatus for engine | Hiroaki Fujita, Minehiro Murata, Satoshi Yamazaki, Goro Iljima, Yoshinaka Takeda | 2012-06-12 |
| 8136348 | Exhaust purification apparatus for engine | Minehiro Murata, Yoshinaka Takeda, Hiroaki Fujita, Satoshi Yamazaki, Shinichi Saito +1 more | 2012-03-20 |
| 8117830 | Exhaust purification device for engine | Yoshinaka Takeda, Hiroaki Fujita, Shinichi Saito, Yasuko Suzuki, Yuji Mitsui +3 more | 2012-02-21 |
| 7992379 | Exhaust purification device for engine | Yasuko Suzuki, Hiroaki Fujita, Shinichi Saito, Yoshio Nakayama | 2011-08-09 |
| 7908843 | Exhaust gas purification device | Reiko Doumeki, Yoshinaka Takeda, Ritsuko Shinozaki, Shinichi Saitou, Yasuko Suzuki | 2011-03-22 |
| 7497078 | Exhaust emission control device of internal combustion engine | Ritsuko Shinozaki, Yoshinori Takahashi, Yoshinaka Takeda, Reiko Doumeki, Shinichi Saito +3 more | 2009-03-03 |
| 7104049 | Exhaust gas purifying system and regeneration end determining method | Yoshinaka Takeda, Toru Kawatani, Reiko Doumeki | 2006-09-12 |
| 7013638 | Exhaust gas purifying system and exhaust gas purifying method | Yoshinaka Takeda, Toru Kawatani, Reiko Doumeki | 2006-03-21 |
| 6755014 | NOx cleaning apparatus and NOx cleaning method for internal combustion engine | Kenji Kawai, Yoshinori Takahashi, Shinichi Saito, Toru Kawatani, Yoshinaka Takeda +3 more | 2004-06-29 |
| 6666019 | Exhaust emission control system of internal combustion engine | Toru Kawatani, Kihoko Kaita, Shinichi Saito, Takeshi Hashizume, Junya Watanabe +2 more | 2003-12-23 |
| 6634170 | Exhaust emission control system of internal combustion engine | Kihoko Kaita, Shinichi Saito, Takeshi Hashizume, Junya Watanabe, Kenji Kawai +2 more | 2003-10-21 |
| 5625610 | Optical disc dubbing apparatus | — | 1997-04-29 |
| 5610888 | Optical disc dubbing apparatus having automatic track number assignment | — | 1997-03-11 |
| 5592449 | Disc apparatus using character-based control codes in a table of contents | Soju Goto, Takashi Kawasaki, Nobumasa Suzuki, Izumi Shibata | 1997-01-07 |
| 5521894 | Optical disc dubbing apparatus having user erase capability | — | 1996-05-28 |
| 4831466 | Magnetic tape recording signal level adjustment device | Shoji Murakami, Kiichiro Koide, Kyoichi Inoue, Toshihiko Osada | 1989-05-16 |
| 4535437 | Pickup arm driving control system with repeat playback function | — | 1985-08-13 |