Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6268096 | Titanyl phthalocyanine crystal and electrophotographic photoreceptor using the same | Hidemi Nukada, Yasuo Sakaguchi, Taketoshi Hoshizaki, Fumio Ojima, Masayuki Nishikawa +1 more | 2001-07-31 |
| 5646669 | Corrosion resistant electrostatic recording head with multiple layers | Tetsuo Yamada, Toshihide Tanaka, Satoru Hirosaki, Koji UDAGAWA | 1997-07-08 |
| 5440029 | Titanyl phthalocyanine crystal | Hidemi Nukada, Yasuo Sakaguchi, Taketoshi Hoshizaki, Fumio Ojima, Masayuki Nishikawa +1 more | 1995-08-08 |
| 5008170 | Photoreceptor for electrophotography | Kenichi Karakida, Shigeru Yagi, Yuzuru Fukuda, Masayuki Nishikawa, Te Nam Roh +3 more | 1991-04-16 |
| 4960662 | Positively and negatively chargeable electrophotographic photoreceptor | Masayuki Nishikawa, Masaki Yokoi, Masato Ono, Noriyoshi Takahashi, Yuzuru Fukuda +2 more | 1990-10-02 |
| 4316237 | Lighting fixture for use in medical operations and therapeutic treatment | Isao Yamada, Mitsuyuki Ikeda | 1982-02-16 |