Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7196854 | Complex optical element and method for manufacturing thereof | Keiji Komiya, Hatsuo Hirose, Hajime Kurahashi | 2007-03-27 |
| 6062539 | Valve gear and coupling mechanism for coupling the valve stem of the valve and the driving shaft of actuator | Ryu Kawabe | 2000-05-16 |
| 4993454 | Piping branch structure | Yasuhiro Masuhara, Osamu Yokomizo, Koichi Kotani, Shinichi Kashiwai | 1991-02-19 |
| 4663116 | Nuclear reactor | Yasuhiro Masuhara, Motoaki Utamura, Shinichi Kashiwai, Shigeto Murata, Toshitsugu Nakao +1 more | 1987-05-05 |