Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4784853 | Antiviral agent | Takeshi Inoi, Etsuro Yoshikawa | 1988-11-15 |
| 4461892 | Process for preparing porous spherical cellulose particles | Masahiko Nishikawa, Hidenori Furukawa | 1984-07-24 |
| 4390691 | Process for preparing porous spherical cellulose particles | Masahiko Nishikawa, Hidenori Furukawa | 1983-06-28 |
| 4312980 | Process for preparing porous cellulose spherical particles | Yoshiaki Motozato | 1982-01-26 |
| 4207303 | Method for producing pure phosphoric acid | Shizuo Tanoue | 1980-06-10 |