Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5678803 | Fluid controller | Tsutomu Shinohara, Nobukazu Ikeda, Kazuhiro Yoshikawa | 1997-10-21 |
| 5669596 | Diaphragm valve | Kazuhiro Yoshikawa | 1997-09-23 |
| 5655420 | Magnetic tightening tool for preventing overtightening and undertightening | Shuhei Ogawa, Hiroshi Ogawa, Koichiro Shoda | 1997-08-12 |