Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11181837 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Michiyo Sekiya, Kaname Watariguchi, Masataka Kawahara, Kohei Makisumi | 2021-11-23 |
| 11126097 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Kaname Watariguchi, Masataka Kawahara, Michiyo Sekiya, Kohei Makisumi | 2021-09-21 |