Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5403687 | Modification of pigment and electrophotographic photoreceptor with modified pigment | Yorinobu Yamada | 1995-04-04 |
| 5368965 | Electrophotographic photoreceptor | Ken Nagasawa, Yorinobu Yamada | 1994-11-29 |