Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11269464 | Electronic pen and cartridge for electronic pen | Kohei Tanaka, Hiroyuki Fujitsuka, Kenichi Ninomiya, Takenori Kaneda, Gunji Ishihara +2 more | 2022-03-08 |
| 11010002 | Electronic pen and cartridge for electronic pen | Kohei Tanaka, Hiroyuki Fujitsuka, Kenichi Ninomiya, Takenori Kaneda, Gunji Ishihara +2 more | 2021-05-18 |