Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5308663 | Biodegradable nonwoven fabric and its molding vessel | Mutuo Nakagawa, Yasuo Nakagawa, Masaaki Nishida, Masashi Nishiyama, Takamasa Kubo +1 more | 1994-05-03 |
| 5306550 | Biodegradable composition and shaped article obtained therefrom | Masashi Nishiyama, Kazutoshi Yoshihara, Takamasa Kubo, Kunio Kanaoka, Kazuo Kondo +3 more | 1994-04-26 |
| 5154864 | Process of producing biodegradable sheet formed of cellulose and chitosan | Masashi Nishiyama, Kazutoshi Yoshihara, Takamasa Kubo, Satoshi Maruyama, Akihiko Ueda +3 more | 1992-10-13 |