Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4362203 | Process for preparing foundry cores or molds and binder materials used therefor | Shigeo Sase, Masatoshi Yoshida, Shoei Kuroda, Takeshi Sumi | 1982-12-07 |
| 4283319 | Process for preparing foundry cores or molds and binder materials used therefor | Shigeo Sase, Masatoshi Yoshida, Shoei Kuroda, Takeshi Sumi | 1981-08-11 |
| 4229330 | Process for producing phenolic resins | Yukio Yoshimura, Ken Nanaumi, Kohei Yasuzawa, Takeshi Yoshida, Toyotaro Shinko | 1980-10-21 |
| 4209429 | Process for producing internally plasticized phenolic resins | Yukio Yoshimura, Ken Nanaumi, Kohei Yasuzawa, Takeshi Yoshida, Toyotaro Shinko | 1980-06-24 |
| 4198499 | Process for producing neutralized phenol resins | Masatoshi Yoshida, Yukio Yoshimura, Takehiko Ishibashi, Shizuo Sakamoto | 1980-04-15 |