Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5604031 | Electrically conductive roll whose base layer is formed of ion-conductive elastic material | Takafumi Yamamoto, Sumio Oinuma, Saburou Hayashi, Hiroyasu Kato | 1997-02-18 |