Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4607080 | Thermoplastic resin composition | Haruhiko Yusa, Kazuo Takahashi | 1986-08-19 |
| 4431772 | Vinyl chloride resin composition | Takayuki Katto, Katsumi Suzuki, Yoshikatsu Satake | 1984-02-14 |
| 4345043 | Vinyl chloride resin composition | Haruhiko Yusa, Haruki Isaka | 1982-08-17 |
| 4287312 | Process for producing a graft-copolymer and blends therewith | Haruhiko Yusa, Katumi Suzuki | 1981-09-01 |
| 4275178 | Powdery graft-copolymer composition | Haruhiko Yusa, Katsumi Suzuki | 1981-06-23 |
| 4229549 | Thermoplastic resin composition comprising a rigid thermoplastic resin and a graft copolymer | Seiji Usami, Hitoshi Takita, Hideyuki Hashizume | 1980-10-21 |
| 4206290 | Fire retardant resinous compositions | Haruhiko Yusa, Kazuo Takahashi, Humio Akutsu | 1980-06-03 |