Issued Patents All Time
Showing 1–25 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7481101 | Evaporated fuel treatment device for internal combustion engine | Takuji Matsubara, Toru Kidokoro | 2009-01-27 |
| 7213450 | Evaporated fuel treatment device for internal combustion engine | Takuji Matsubara, Toru Kidokoro | 2007-05-08 |
| 7082815 | Evaporated fuel treatment device of internal combustion engine | Takuji Matsubara, Toru Kidokoro | 2006-08-01 |
| 7043972 | Evaporated fuel treatment device of internal combustion engine | Takuji Matsubara, Toru Kidokoro | 2006-05-16 |
| 6988396 | Evaporated fuel treatment device for internal combustion engine | Takuji Matsubara, Toru Kidokoro | 2006-01-24 |
| 6837224 | Evaporated fuel treatment device for internal combustion engine | Toru Kidokoro, Takuji Matsubara | 2005-01-04 |
| 6796295 | Evaporated fuel treatment device for internal combustion engine | Toru Kidokoro, Takuji Matsubara | 2004-09-28 |
| 6761154 | Evaporative fuel processing apparatus and control method of same | Naoya Takagi | 2004-07-13 |
| 6695895 | Fuel vapor handling apparatus and diagnostic apparatus thereof | Mamoru Yoshioka, Takanobu Kawano, Hideaki Itakura, Masaki Takeyama, Naoya Kato | 2004-02-24 |
| 6637415 | Evaporative fuel leakage preventing device for internal combustion engine | Mamoru Yoshioka | 2003-10-28 |
| 6616007 | Fuel tank | Takashi Ishikawa, Tomoyasu Arase, Masahide Kobayashi, Katsuyuki Miura | 2003-09-09 |
| 6438945 | Evaporated fuel treatment device of an engine | Naoya Takagi, Toshimi Murai | 2002-08-27 |
| 6405718 | Malfunction test apparatus for fuel vapor purge system | Mamoru Yoshioka, Naoya Takagi | 2002-06-18 |
| 6283088 | Method and apparatus for processing vapor fuel of lean-burn internal combustion engine | Naoya Takagi | 2001-09-04 |
| 6257209 | Evaporative fuel processing apparatus for lean-burn internal combustion engine | Naoya Takagi, Motoki Ohtani | 2001-07-10 |
| 6257218 | Fuel vapor feed controlling apparatus for a lean burn type internal combustion engine | Naoya Takagi, Toshimi Murai, Zenichiro Mashiki, Tetsuji Nagata | 2001-07-10 |
| 6253743 | Fuel vapor control apparatus | Toshimi Murai, Hidekazu Sasaki, Koichi Takeuchi | 2001-07-03 |
| 6240908 | Fuel storage device diagnostic apparatus | Hidekazu Sasaki, Takuya Matsuoka, Naoya Takagi | 2001-06-05 |
| 6176118 | Device for diagnosing malfunction in a fuel tank | Toru Kidokoro, Takaaki Ito | 2001-01-23 |
| 6161424 | Device for diagnosing malfunction in a fuel tank | Toru Kidokoro, Takaaki Ito | 2000-12-19 |
| 6155448 | Fuel tank | Takashi Ishikawa, Tomoyasu Arase, Masahide Kobayashi, Katsuyuki Miura | 2000-12-05 |
| 6145306 | Exhaust gas purifying of lean-burn internal combustion engine | Naoya Takagi, Toshimi Murai | 2000-11-14 |
| 6131448 | Diagnostic apparatus and method for fuel vapor treating apparatus | Naoya Takagi | 2000-10-17 |
| 6102003 | Apparatus for detecting concentration of fuel vapor in lean-burn internal combustion engine, and applied apparatus thereof | Naoya Takagi, Toshimi Murai | 2000-08-15 |
| 6047687 | Canister | Takashi Ishikawa, Hideo Yamada | 2000-04-11 |