Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8182970 | Image forming method | Tomoo Sakimura, Nobuaki Kobayashi, Tadaaki SUMITANI | 2012-05-22 |
| 8177604 | Surface abrading method of photosensitive layer of electrophotographic photoreceptor | Junji Ujihara, Nobuaki Kobayashi, Tadaaki SUMITANI | 2012-05-15 |
| 5494771 | Separating and recovering method of continuously coated photoreceptor drum | Nobuaki Kobayashi, Daisaku Tsuji, Akira Ohira, Makoto Kon | 1996-02-27 |
| 5223365 | Magnetic toner | Yoko Yamamoto, Hiroshi Yamazaki | 1993-06-29 |
| 4994340 | Magnetic toner | Hiroshi Yamazaki, Yoko Yamamoto | 1991-02-19 |