Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7371706 | Catalyst for removing hydrocarbons from exhaust gas and method for purification of exhaust gas | Hirofumi Ohtsuka, Takeshi Tabata, Masataka Masuda, Takenori Hirano | 2008-05-13 |
| 6887446 | Catalyst for removing hydrocarbons from exhaust gas and method for purification of exhaust gas | Hirofumi Ohtsuka, Takeshi Tabata, Masataka Masuda, Takenori Hirano | 2005-05-03 |
| 6602481 | Catalyst for removing hydrocarbons from exhaust gas and method for clarification of exhaust gas | Hirofumi Ohtsuka, Takeshi Tabata, Masataka Masuda, Takenori Hirano | 2003-08-05 |