Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5707726 | Aluminum pipe production process, electrophotographic photosensitive member produced by the production process, and electrophotographic apparatus having the electrophotographic photosensitive member | Mutsuo Ohtaka, Hisami Tanaka, Shinichi Shibayama, Yosuke Okubo | 1998-01-13 |
| 5595848 | Electrophotographic photosensitive member produced from aluminum pipe | Mutsuo Ohtaka, Hisami Tanaka, Shinichi Shibayama, Yosuke Okubo | 1997-01-21 |