Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |