Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5075187 | Electrophotographic photoreceptor with oxide of Al, Zr or Ta as charge transport layer | Ken-ichi Karakida, Yuzuru Fukuda, Susumu Honma, Shigeru Yagi | 1991-12-24 |
| 5059501 | Electrophotographic photoreceptor with overlayer of amorphous Si with N | Shigeru Yagi, Masato Ono, Noriyoshi Takahashi, Yuzuru Fukuda, Kenichi Karakida | 1991-10-22 |
| 5008170 | Photoreceptor for electrophotography | Kenichi Karakida, Shigeru Yagi, Yuzuru Fukuda, Te Nam Roh, Noriyoshi Takahashi +3 more | 1991-04-16 |
| 4965154 | Electrophotographic photoreceptor having surface layers | Kenichi Karakida, Shigeru Yagi, Yuzuru Fukuda, Te Nam Roh, Noriyoshi Takahashi +1 more | 1990-10-23 |
| 4965164 | Method for producing electrophotographic photoreceptor | Yuzuru Fukuda | 1990-10-23 |
| 4960662 | Positively and negatively chargeable electrophotographic photoreceptor | Yumiko Komori, Masaki Yokoi, Masato Ono, Noriyoshi Takahashi, Yuzuru Fukuda +2 more | 1990-10-02 |
| 4959289 | Electrophotographic element having a surface layer and method for producing same | Shigeru Yagi | 1990-09-25 |
| 4932859 | Electrophotographic photoreceptor having doped and/or bilayer amorphous silicon photosensitive layer | Shigeru Yagi, Te Nam Roh, Ken-ichi Karakida, Masahito Tokuhiro, Noriyoshi Takahashi +1 more | 1990-06-12 |
| 4927190 | Hose fitting | Takeshi Miyazaki, Terumitsu Shigeki, Satoshi Mitzutani, Toru Isono | 1990-05-22 |
| 4923773 | Multilayered electrophotographic photoreceptor of amorphous silicon having a surface layer of nitrogenated amorphous silicon | Shigeru Yagi, Masato Ono, Noriyoshi Takahashi, Yuzuru Fukuda, Kenichi Karakida | 1990-05-08 |
| 4854030 | Process of manufacturing a hose fitting | Takeshi Miyazaki, Terumitsu Shigeki, Satoshi Mizutani, Toru Isono | 1989-08-08 |