Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4689864 | Method of making valve sleeves | Nobuo Fukuma, Hisayasu Hasegawa, Kimimasa Murayama, Kunio Hayashi | 1987-09-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4689864 | Method of making valve sleeves | Nobuo Fukuma, Hisayasu Hasegawa, Kimimasa Murayama, Kunio Hayashi | 1987-09-01 |