Issued Patents All Time
Showing 151–158 of 158 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4788119 | Electrophotographic photosensitive member containing a disazo pigment | Masataka Yamashita, Hajime Miyazaki, Masakazu Matsumoto, Masaaki Hiro, Shozo Ishikawa | 1988-11-29 |
| 4760003 | Electrophotographic photosensitive member containing disazo compound | Masakazu Matsumoto, Masataka Yamashita, Shoji Umehara, Shozo Ishikawa, Hajime Miyazaki | 1988-07-26 |
| 4743523 | Photosensitive member for electrophotography | Masataka Yamashita, Shoji Umehara, Masakazu Matsumoto, Shozo Ishikawa | 1988-05-10 |
| 4735882 | Trisazo photsensitive member for electrophotography | Masataka Yamashita, Shoji Umehara, Masakazu Matsumoto, Shozo Ishikawa | 1988-04-05 |
| 4702982 | Electrophotographic photosensitive member comprising disazo pigment | Masakazu Matsumoto, Masataka Yamashita, Shoji Umehara, Shozo Ishikawa | 1987-10-27 |
| 4666810 | Photosensitive member for electrophotography comprising azo pigments | Shoji Umehara, Masakazu Matsumoto, Masataka Yamashita, Shozo Ishikawa | 1987-05-19 |
| 4610943 | Electrophotographic photosensitive member contains disazo photoconductive compound | Hajime Miyazaki, Masakazu Matsumoto, Shozo Ishikawa | 1986-09-09 |
| 4324801 | Phenylguanidine acetylsalicylate compounds, process for production thereof, and pharmaceutical composition thereof | Meiki Matsuzaki, Hiroshi Okabe, Seishiro Tanaka, Kunikatsu Onodera | 1982-04-13 |