Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879074 | Method for coating soot on a melt contact surface | Yoshiharu Waku, Hideho Yoshioka, Hiroyoshi Oba | 1989-11-07 |
| 4842038 | Injection method of die casting machine | Toyoaki Ueno | 1989-06-27 |
| 4830289 | Centrifugal fluidized grinding apparatus | Kaoru Umeya | 1989-05-16 |