Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5645905 | Snap zipper | Ken Tanaka | 1997-07-08 |
| 5603995 | Snap zipper and bag with the same | Ken Tanaka | 1997-02-18 |
| 5415904 | Snap fastener and packaging bag with the same | Shigezo Yamamoto | 1995-05-16 |
| 4867927 | Process of producing thermplastic resin sheet and the like and molding screw therefor | Akira Funaki | 1989-09-19 |
| 4863653 | Process of producing thermoplastic resin sheet and equipment therefor | Atsushi Fujii | 1989-09-05 |
| 4729666 | Screw for molding thermoplastic resin having a stress relaxation section | — | 1988-03-08 |
| 4666649 | Method of and apparatus for extruding thermoplastic resin | Atsushi Fujii | 1987-05-19 |