Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8267228 | Brake disc having corrugated outer periphery | Yoshio Hoshi, Tsuyoshi Nakatsuji, Tooru Fujii, Kiyotaka Obunai | 2012-09-18 |
| 5744401 | Silicon wafer manufacturing method eliminating final mirror-polishing step | Hiroshi Shirai, Jun Yoshikawa, Youji Ogawa, Kazuhiko Kashima, Yukari Kohtari +3 more | 1998-04-28 |