Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5618431 | Method of cleaning floating filter medium for biological filtering apparatus | Masao Kondo, Senichi Hozo | 1997-04-08 |
| 5615001 | Multicolor image forming apparatus | Masato Kawashima, Hideyuki Shimobuchi, Hiroyuki Okitsu, Masato Matsuzuki, Hiroaki Yoshida +5 more | 1997-03-25 |