Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4659847 | Chemically stable colloidal antimony oxide | Hideo Naka | 1987-04-21 |
| 4659529 | Method for the production of high strength polyacrylonitrile fiber | Seiji Takao | 1987-04-21 |
| 4658004 | Polyacrylonitrile fiber with high strength and high modulus of elasticity | Seiji Takao | 1987-04-14 |
| 4604428 | Method of producing a flame-retardant acrylic polymer | Masaaki Fujimatsu | 1986-08-05 |
| 4565832 | Process for producing packing material for use in liquid chromatography | Shoyo Takagi, Hideo Naka | 1986-01-21 |
| 4546146 | Process for producing dispersions comprising fine particles of acrylonitrile polymers | Hideo Naka | 1985-10-08 |
| 4540754 | Process for producing high molecular weight acrylonitrile polymers | Shoyo Takagi | 1985-09-10 |
| 4535027 | High strength polyacrylonitrile fiber and method of producing the same | Seiji Takao | 1985-08-13 |
| 4533538 | Method of producing colloidal antimony oxide | Hideo Naka | 1985-08-06 |
| 4248812 | Process for producing a rush-like structure | Masahiko Ozaki, Noboru Abe | 1981-02-03 |
| 4237256 | Process for producing an acrylonitrile polymer melt | Masahiko Ozaki, Noboru Abe | 1980-12-02 |