Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883420 | Die for extruding honeycomb structural bodies | Sei Ozaki, Satoru Inoue | 1989-11-28 |
| 4875264 | Method for producing dies for extruding honeycomb structures | Satoru Inoue | 1989-10-24 |
| 4830598 | Dies for extruding honeycomb structure | Satoru Inoue | 1989-05-16 |
| 4820146 | Super hard alloy dies for extruding honeycomb structures | Satoru Inoue | 1989-04-11 |
| 4808787 | Wire-cut electrical discharge machining equipment | — | 1989-02-28 |
| 4800248 | Electrical discharge machining apparatus with discharge current control | Masaki Kurihara | 1989-01-24 |