Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4309338 | Process for preparing aqueous dispersion of rosin-base materials | Kimio Kawatani | 1982-01-05 |
| 4296012 | Sizing compositions incorporating ketene dimer | Osamu Oseto, Keizo Matsumoto, Shigenori Thuzimoto, Hisanari Sanda | 1981-10-20 |
| 4267099 | Process for preparing aqueous dispersion of rosin-base materials | Kimio Kawatani | 1981-05-12 |