Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885057 | Method for treating synthetic pulp particles, and pulp particles composed of synthetic polymer | Michio Yamamoto, Tsutomu Kiriyama, Yoshitaka Sakamoto, Kenji Ishimaru | 1989-12-05 |
| 4724046 | Cake of synthetic fibrid | Michio Yamamoto, Akihiro Aoki | 1988-02-09 |
| 4413114 | Aromatic copolyamide containing 3,4'-diphenylene moiety | Keizo Shimada, Hiroshi Mera, Akihiro Aoki | 1983-11-01 |
| 4355151 | Aromatic copolyamide containing 3,4'-diamino diphenylene moiety | Keizo Shimada, Hiroshi Mera, Akihiro Aoki | 1982-10-19 |
| 4353802 | Semipermeable composite membrane | Shigeyoshi Hara, Yuzuru Hayashi, Takeyuki Kawaguchi, Yutaka Taketani, Hiroyoshi Minematsu | 1982-10-12 |
| 4302336 | Semipermeable composite membrane | Takeyuki Kawaguchi, Yutaka Taketani, Hiroyoshi Minematsu, Yuzuru Hayashi, Shigeyoshi Hara | 1981-11-24 |
| 4242208 | Semipermeable composite membrane and process for preparation thereof | Takeyuki Kawaguchi, Yutaka Taketani, Hiroyoshi Minematsu, Yuzuru Hayashi, Shigeyoshi Hara | 1980-12-30 |