Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10261430 | Photoreceptor for electrophotography and image forming apparatus employing the same | Keiichi Ishikawa, Manabu Takezawa | 2019-04-16 |
| 9651878 | Organic photoconductor and electrophotographic apparatus and process cartridge including the organic photo conductor | Manabu Takezawa, Osamu Watanabe | 2017-05-16 |
| 9594317 | Organic photoreceptor, and electrophotographic cartridge and electrophotographic imaging apparatus including the same | Manabu Takezawa, Adachi Mami, Osamu Watanabe | 2017-03-14 |
| 8625355 | Semiconductor memory device and method of operating the same | Naoaki Sudou | 2014-01-07 |