Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882087 | Aqueous dispersed solution of substituted succinic anhydride and process for producing the same | Shigehiko Yoshioka, Hisatake Sato, Motokazu Kamei | 1989-11-21 |
| 4849055 | Process for making paper using a substituted succinic anhydride as a sizing agent | Shigehiko Yoshioka, Akira Honma, Hisatake Sato | 1989-07-18 |
| 4810301 | Composition for sizing agent and process for using the same composition | Shigehiko Yoshioka, Tsuneo Yoshida, Hisatake Sato, Yoshio Adachi | 1989-03-07 |
| 4717452 | Composition for sizing agent and process for using the same composition | Shigehiko Yoshioka, Tsuneo Yoshida, Hisatake Sato, Yoshio Adachi | 1988-01-05 |
| 4533434 | Process for sizing paper and process for making plasterboard base paper sized thereby | Shigehiko Yoshioka, Kimihiko Goto, Yoshio Adachi, Kazuo Miyahana | 1985-08-06 |
| 4405408 | Cellulose processing agents and paper processed therewith | Shigehiko Yoshioka, Akira Asakura | 1983-09-20 |