Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7684928 | Navigation apparatus and server apparatus | Susumu Iida, Koji Sawada | 2010-03-23 |
| RE39491 | Optical disk vibration sensing and reproducing device | Takumi Ota, Akihiro Kishishita, Masayuki Hayashida | 2007-02-20 |
| 7146273 | Navigation system, navigation apparatus, and server apparatus | Hidenori Kadono | 2006-12-05 |
| 7054746 | Navigator | Hiroshi Tanaka, Takashi Sugai, Isao Umezawa, Hidenori Kadono, Yuichi Abe +3 more | 2006-05-30 |
| 6081491 | Optical disk vibration sensing and reproducing device | Takumi Ota, Akihiro Kishishita, Masayuki Hayashida | 2000-06-27 |
| 6009053 | Optical disk vibration sensing and reproducing device | Takumi Ota, Akihiro Kishishita, Masayuki Hayashida | 1999-12-28 |
| 5886966 | Optical disk vibration sensing and reproducing device | Takumi Ota, Akihiro Kishishita, Masayuki Hayashida | 1999-03-23 |