Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4524193 | Modacrylic synthetic fiber having an excellent devitrification preventing property and a process for preparing the same | Kaoru Yamazaki, Mitsuya Sakata, Takahiro Ogawa | 1985-06-18 |
| 4311761 | Filament for wig | Youichi Kanbara | 1982-01-19 |
| 4200719 | Method of production of acrylonitrile polymer with vinylbenzyl sulfonic acids | Kaoru Yamazaki, Takashi Hatano, Sadame Asada, Mariko Yasuda | 1980-04-29 |