Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D388504 | Electromagnetic valve | Bunya Hayashi, Makoto Ishikawa | 1997-12-30 |
| 5603355 | Pilot type electromagnetic valve | Makoto Ishikawa | 1997-02-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D388504 | Electromagnetic valve | Bunya Hayashi, Makoto Ishikawa | 1997-12-30 |
| 5603355 | Pilot type electromagnetic valve | Makoto Ishikawa | 1997-02-18 |