Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8607743 | Internal combustion engine | — | 2013-12-17 |
| 8486166 | Fuel reforming apparatus | Isamu Nakada, Keiichiro Aoki, Takanori Sasaki | 2013-07-16 |
| 7514047 | Exhaust gas purifying apparatus | Hirohito Hirata, Masaru Kakinohana | 2009-04-07 |
| 7186387 | Exhaust emission control system of internal combustion engine | — | 2007-03-06 |
| 7146797 | Exhaust gas purification system | — | 2006-12-12 |
| 5966932 | Joint structure for exhaust pipes of internal combustion engine | — | 1999-10-19 |
| 5454604 | Vortex gasket for automotive exhaust system | Masahiko Takaoka, Shingo Hoshikawa, Takeshi Miyoshi, Keiji Okada | 1995-10-03 |
| 5411274 | Vortex gasket for automative exhaust system | Masahiko Takaoka, Shingo Hoshikawa, Takeshi Miyoshi, Keiji Okada | 1995-05-02 |