Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6633272 | Driving method, drive IC and drive circuit for liquid crystal display | Katsuhiko Kumagawa, Akira Kawaji, Takeshi Okuno, Tohru Suyama | 2003-10-14 |
| 6597337 | Driving method, drive IC and drive circuit for liquid crystal display | Katsuhiko Kumagawa, Akira Kawaji, Takeshi Okuno, Tohru Suyama | 2003-07-22 |
| 6522318 | Driving method, drive IC and drive circuit for liquid crystal display | Katsuhiko Kumagawa, Akira Kawaji, Takeshi Okuno, Tohru Suyama | 2003-02-18 |
| 6232944 | Driving method, drive IC and drive circuit for liquid crystal display | Katsuhiko Kumagawa, Akira Kawaji, Takeshi Okuno, Tohru Suyama | 2001-05-15 |
| 6054972 | Method and apparatus for driving a passive matrix liquid crystal display device | Toshiya Otani, Kazuhiro Nakanishi | 2000-04-25 |
| 5940064 | Display-integrated coordinate input device | Tsutomu Kai, Masahiro Yamamoto, Naoyuki Ito, Shouzou Fujiwara, Takeshi Okuno +2 more | 1999-08-17 |
| 5606346 | Coordinate input device | Tsutomu Kai | 1997-02-25 |