Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6767391 | Air filter | Minoru Tanaka, Jun Shimada, Katsuhiro Yamashita | 2004-07-27 |
| 6720069 | Sound absorbing structure | Atsushi Murakami, Shuuchirou Wada, Kazuo Nishimoto, Takahiro Niwa, Hiroto Sugai | 2004-04-13 |
| 6703103 | Biologically soluble honeycomb structure | Minoru Tanaka | 2004-03-09 |