Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5459009 | Process for making an electrophotographic photoreceptor having protective layer | Yuzuru Fukuda, Masayuki Nishikawa, Masato Ono, Noriyoshi Takahashi, Shigeru Yagi | 1995-10-17 |
| 5262262 | Electrophotographic photoreceptor having conductive layer and amorphous carbon overlayer | Shigeru Yagi, Masayuki Nishikawa, Te Nam Roh, Masahito Tokuhiro, Yuzuru Fukuda +1 more | 1993-11-16 |
| 5104756 | Electrophotographic photoreceptor having anodized aluminum charge transporting layer | Yuzuru Fukuda, Shigeru Yagi | 1992-04-14 |
| 5094929 | Electrophotographic photoreceptor with amorphous carbon containing germanium | Shigeru Yagi, Masato Ono, Noriyoshi Takahashi, Masayuki Nishikawa, Yuzuru Fukuda | 1992-03-10 |
| 5082760 | Method for preparing an electrophotographic photoreceptor having a charge transporting layer containing aluminum oxide | Yuzuru Fukuda, Masayuki Nishikawa, Shigeru Yagi | 1992-01-21 |
| 5075187 | Electrophotographic photoreceptor with oxide of Al, Zr or Ta as charge transport layer | Yuzuru Fukuda, Susumu Honma, Masayuki Nishikawa, Shigeru Yagi | 1991-12-24 |
| 4960662 | Positively and negatively chargeable electrophotographic photoreceptor | Masayuki Nishikawa, Yumiko Komori, Masaki Yokoi, Masato Ono, Noriyoshi Takahashi +2 more | 1990-10-02 |
| 4932859 | Electrophotographic photoreceptor having doped and/or bilayer amorphous silicon photosensitive layer | Shigeru Yagi, Masayuki Nishikawa, Te Nam Roh, Masahito Tokuhiro, Noriyoshi Takahashi +1 more | 1990-06-12 |
| 4873165 | Electrophotographic photoreceptor having overlayer comprising carbon | Shigeru Yagi | 1989-10-10 |