Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7077575 | Ball bearing | Takayuki Yatabe, Hisato Yamamoto, Yasuhisa Terada, Takashi Ogawa, Tsuyoshi Koshi +1 more | 2006-07-18 |
| 6719458 | Ball bearing | Takayuki Yatabe, Hisato Yamamoto, Yasuhisa Terada, Takashi Ogawa, Tsuyoshi Koshi +1 more | 2004-04-13 |
| 6691551 | Traction coefficient measurement device | Ryoichi Otaki, Shinichi Natsumeda | 2004-02-17 |
| 6644094 | Traction coefficient measurement device | Ryoichi Otaki, Shinichi Natsumeda | 2003-11-11 |
| 6524008 | Ball bearing | Takayuki Yatabe, Hisato Yamamoto, Yasuhisa Terada, Takashi Ogawa, Tsuyoshi Koshi +1 more | 2003-02-25 |