Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4407919 | Electrophotographic plate | Tetsuo Murayama, Shigenori Otsuka, Yukihiro Sato | 1983-10-04 |
| 4367273 | Electrophotographic plate comprising a conductive substrate and a photosensitive layer containing an organic photoconductor layer composed of a hydrazone compound | Tetsuo Murayama, Shigenori Otsuka | 1983-01-04 |
| 4278747 | Electrophotographic plate comprising a conductive substrate and a photosensitive layer containing an organic photoconductor layer composed of a hydrazone compound | Tetsuo Murayama, Shigenori Otsuka | 1981-07-14 |