Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6827754 | Ceramic honeycomb filter | Hirohisa Suwabe, Yasuhiko Otsubo, Shinya Tokumaru, Hiroshi Funabashi, Makoto Tsujita +1 more | 2004-12-07 |
| 6684938 | EGR cooler | Makoto Tsujita, Katsuji Inoue, Yoji Yamashita | 2004-02-03 |