Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8643570 | Active matrix organic electroluminescence display and its gradation control method | Kaoru Okamoto, Tadahiko Hirai | 2014-02-04 |
| 8552619 | Driving circuit for vibration-type actuator | Kenichi Kataoka | 2013-10-08 |
| 8395613 | Display apparatus and driving method thereof | Kaoru Okamoto, Tadahiko Hirai | 2013-03-12 |
| 8228271 | Active-matrix display and drive method thereof | Tadahiko Hirai, Kaoru Okamoto | 2012-07-24 |
| 8179343 | Display apparatus and driving method of display apparatus | Kaoru Okamoto, Tadahiko Hirai | 2012-05-15 |
| 7848200 | Method and apparatus of reproducing multilevel information | Kaoru Okamoto, Masakuni Yamamoto | 2010-12-07 |
| 7808873 | Optical information reproducing method | Masakuni Yamamoto, Kaoru Okamoto | 2010-10-05 |
| 7808874 | Optical information reproducing method | Masakuni Yamamoto, Kaoru Okamoto | 2010-10-05 |
| 7804754 | Optical information recording/reproducing method | Masakuni Yamamoto, Kaoru Okamoto | 2010-09-28 |
| 7778133 | Optical Information recording/reproducing apparatus | Kaoru Okamoto, Masakuni Yamamoto | 2010-08-17 |
| 7738338 | Optical information reproducing method | Masakuni Yamamoto, Kaoru Okamoto | 2010-06-15 |
| 7706243 | Method and apparatus for reproducing optical information | Masakuni Yamamoto, Kaoru Okamoto | 2010-04-27 |
| 7599272 | Method and apparatus for recording and reproducing multi-level information | Masakuni Yamamoto | 2009-10-06 |
| 7593302 | Recording strategy in multilevel recording | Masakuni Yamamoto, Kaoru Okamoto | 2009-09-22 |