Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10260656 | Vacuum valve and vacuum pressure control system using the same | Minoru Ito, Masayuki Watanabe | 2019-04-16 |
| 10167958 | Vacuum pressure control apparatus | Yasunori Nishimura, Masayuki Watanabe | 2019-01-01 |
| 5047714 | Printed circuit board and a method of recognizing the position of surface mounted parts | Yutaka Maeno, Keiichi Hasegawa, Masaaki Hachiya, Shingo Ueyama | 1991-09-10 |