Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861626 | Extrusion die, method of producing the same and method of reclaiming the same | Masahiro Ihara, Kazuo Suzuki, Haremi Ito, Kenichi Tanaka | 1989-08-29 |
| 4826425 | Constant amount ceramic batch supplying apparatus | Tokimasa Kawamura | 1989-05-02 |