Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5307689 | Mass flowmeter | Shigeru Nishiyama, Hiroaki Hasegawa, Hiroshi Koido | 1994-05-03 |
| 4811606 | Mass flowmeter | Hiroaki Hasegawa, Koyata Sugimoto, Akira Nakamura | 1989-03-14 |
| 4585161 | Air fuel ratio control system for furnace | Akio Kusama, Ichiro Nakamachi, Kunio Shigihara, Hiroyuki Amemori, Tetsuo Iwamoto | 1986-04-29 |
| 4324144 | Turbine flowmeter | Kazuhiko Hirose | 1982-04-13 |