Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861626 | Extrusion die, method of producing the same and method of reclaiming the same | Masahiro Ihara, Kazuo Suzuki, Hideya Maekawa, Haremi Ito | 1989-08-29 |
| 4825674 | Metallic tubular structure having improved collapse strength and method of producing the same | Katsuyuki Tokimasa | 1989-05-02 |
| 4803662 | EEPROM cell | — | 1989-02-07 |