Issued Patents All Time
Showing 26–50 of 71 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7780032 | Fuel cap | — | 2010-08-24 |
| 7757880 | Tank cap | — | 2010-07-20 |
| 7665624 | Gasket and tank opening-closing device | Kentaro Enomoto, Masayuki Nakagawa, Eishin Mori | 2010-02-23 |
| 7658297 | Cap device with torque mechanism | Masayuki Nakagawa | 2010-02-09 |
| 7600650 | Cap device | Shinobu Kawabata | 2009-10-13 |
| 7578405 | Fuel cap having a fuel tank pressure regulating valve | — | 2009-08-25 |
| 7516867 | Cap device having torque mechanism | — | 2009-04-14 |
| 7475790 | Gasket and tank cap | Masayuki Nakagawa, Shinobu Kawabata | 2009-01-13 |
| 7428974 | Fuel tank fueling device with tether mechanism | Masayuki Nakagawa | 2008-09-30 |
| 7344042 | Cap device | — | 2008-03-18 |
| 7338619 | Resin member and method of manufacturing the same | Masayuki Nakagawa | 2008-03-04 |
| 7290673 | Cap device | — | 2007-11-06 |
| 7281640 | Cap device | Masayuki Nakagawa | 2007-10-16 |
| 7278547 | Cap device | Masayuki Nakagawa, Masaki Akagi | 2007-10-09 |
| 7048138 | Cap device | Masayuki Nakagawa | 2006-05-23 |
| 7025222 | Cap device | Masayuki Nakagawa | 2006-04-11 |
| 6983773 | Oil feeder of fuel tank | Masayuki Nakagawa | 2006-01-10 |
| 6978802 | Fuel tank and manufacturing method thereof | Kenichiro Kaneko, Masayuki Nakagawa, Hiroshi Nishi | 2005-12-27 |
| 6913163 | Fuel cap | Kazuhisa Ishida, Masayuki Nakagawa, Hiroyuki Sato, Kimio Tsubaki | 2005-07-05 |
| 6913162 | Tank cap and tank cap apparatus | Masayuki Nakagawa | 2005-07-05 |
| 6902079 | Tank cup | — | 2005-06-07 |
| 6866161 | Fueling device of fuel tank | — | 2005-03-15 |
| 6814251 | Cap device | — | 2004-11-09 |
| 6793091 | Tank cap | Masayuki Nakagawa | 2004-09-21 |
| 6745914 | Cap device | Masayuki Nakagawa | 2004-06-08 |