Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8231852 | Silicon wafer and method for producing the same | Takashi Nakayama, Shigeru Umeno, Hiroaki Taguchi, Yasuo Koike | 2012-07-31 |
| 7632349 | Silicon wafer surface defect evaluation method | Takeshi Hasegawa, Takaaki Shiota | 2009-12-15 |
| 5624161 | Seat cushion pad supporting construction | Yuuichi Sorimachi, Yasushi Yoshino, Teruhiko Yamamoto | 1997-04-29 |