Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7559861 | Racket, blade and rubber for table tennis | Naoko Okada | 2009-07-14 |
| 6923244 | Pouring apparatus for castings | Tetsuichi Motegi, Kiichi Miyazaki, Yoshitomo Tezuka | 2005-08-02 |
| 6616729 | Method of grain refining cast magnesium alloy | Tetsuichi Motegi, Kiichi Miyazaki, Yoshitomo Tezuka, Eiji Yano | 2003-09-09 |