Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12339197 | Leak diagnosis device of fuel vapor treatment apparatus | Keita Fukui, Hideki Miyahara | 2025-06-24 |
| 12189802 | Device information management system | Masato Yamamura, Takahiro KOUJI, Daisuke Suzuki, Ken Miyawaki | 2025-01-07 |
| 12146456 | Control device for fuel vapor treatment apparatus | Hideki Miyahara, Keita Fukui | 2024-11-19 |
| 10480430 | Evaporated fuel processing device | Hidetoshi Tsutsumi, Tatsuhiko Akita | 2019-11-19 |
| 10018131 | Fuel vapor processing apparatus | Naoyuki Tagawa, Minoru Akita, Yoshikazu Miyabe, Tatsuhiko Akita, Keita Fukui | 2018-07-10 |
| 10006386 | Fuel vapor processing apparatus | Naoyuki Tagawa, Minoru Akita, Yoshikazu Miyabe, Tatsuhiko Akita, Keita Fukui | 2018-06-26 |
| 10006411 | Fuel vapor treatment system | Keita Fukui, Tatsuhiko Akita | 2018-06-26 |
| 9464960 | Liquid submerged portion fuel leakage diagnostic apparatus | — | 2016-10-11 |
| 9228540 | Fuel vapor processing apparatus | Norihisa Yamamoto, Tsuneyuki Kurata, Masamitsu Hayakawa, Ryuji Kosugi, Shinji Shimokawa +2 more | 2016-01-05 |
| 7418952 | Evaporative fuel treatment system | Masao Kano, Shinsuke Takakura, Noriyasu Amano, Shinsuke Kiyomiya | 2008-09-02 |
| 7318425 | Fuel vapor treatment apparatus | Masao Kano, Shinsuke Takakura, Tomoaki Nakano, Noriyasu Amano, Shinsuke Kiyomiya | 2008-01-15 |
| 7246608 | Fuel vapor processing apparatus | Masao Kano, Shinsuke Takakura, Noriyasu Amano, Sinsuke Kiyomiya | 2007-07-24 |
| 7234450 | Gas density ratio detector, gas concentration detector, and fuel vapor treatment apparatus | Shinsuke Takakura, Masao Kano, Noriyasu Amano, Shinsuke Kiyomiya | 2007-06-26 |
| 6393932 | Shift lever device | Yoshiyuki Seki, Toshiki Nogami, Noriyuki Suzuki, Etsuo Shimizu, Tatsuya Michihiro +1 more | 2002-05-28 |
| 5202250 | Method for isolation and purification of amylases, and adsorbents used for the same as well as devices for the isolation and purification | Masahiko Ishida, Ryoichi Haga, Masami Satoh | 1993-04-13 |
| 5162204 | Apparatus and method of culturing and diagnosis of animal cells using image processing | Harumi Matsuzaki, Ryoichi Haga, Kenji Baba, Fumio Maruhashi, Nobuko Nishimura +2 more | 1992-11-10 |
| 4888285 | Enzyme immobilization on a water-insoluble amino group-containing carrier | Masahiko Ishida, Ryoichi Haga | 1989-12-19 |
| 4363219 | Method and system of heat energy conversion | Yasuo Koseki, Akira Yamada, Sankichi Takahashi | 1982-12-14 |