Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689572 | Method of actively controlling noise, and apparatus thereof | Katsuo Ohki, Shinichi Shimode, Yukiji Iwase, Osamu Sekiguchi, Takahiro Daikoku +2 more | 1997-11-18 |
| 5654367 | Organic polymer and preparation and use thereof | Akio Takimoto, Hirofumi Wakemoto, Eiichiro Tanaka, Junko Asayama, Hisahito Ogawa +2 more | 1997-08-05 |
| 5597889 | Organic polymer and preparation and use thereof | Akio Takimoto, Hirofumi Wakemoto, Eiichiro Tanaka, Junko Asayama, Hisahito Ogawa +2 more | 1997-01-28 |