Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12315394 | Cheating estimation device, cheating estimation method, and recording medium | Sakuya ARAKI, Yusuke AKINO, Hirofumi Ota | 2025-05-27 |
| 10740815 | Searching device, searching method, recording medium, and program | — | 2020-08-11 |
| 5742880 | Charging member, and process cartridge and electrophotographic apparatus having the charging member | Masaaki Takenaka, Takashi Yamashita | 1998-04-21 |
| 5625858 | Contact charging member, process for producing same and electrophotographic apparatus using same | Takashi Yamashita, Masaaki Takenaka | 1997-04-29 |
| 5422194 | Light-resistant polyaniline light-shielding film and liquid crystal display device using the same | Masaharu Satoh, Hitoshi Ishikawa, Kosuke Amano, Setsuo Kaneko | 1995-06-06 |