Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6806225 | Catalyst for exhaust gas purification, process for producing the same, and method of purifying exhaust gas | Yasuo Ikeda, Hiroshi Hirayama, Sinji Tsuji | 2004-10-19 |
| 6649133 | Catalyst for purifying exhaust gas, process for producing the same, and method for purifying exhaust gas | Yoriko Hasegawa, Mareo Kimura, Naoki Takahashi, Hiromasa Suzuki, Kazuaki Sobue | 2003-11-18 |