Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4770772 | Apparatus for separating and drying fine particles | Soichi Kuwajima, Shiro Fujii | 1988-09-13 |
| 4307199 | Process for making heat insulating firebricks | Eiji Horie, Shinichiro Oosawa, Hideo Hisaka, Naoki Tanetani | 1981-12-22 |
| 4282173 | Method for manufacturing refractory material having numerous through pores extending in a certain direction | Tsunemi Ochiai, Goro Saiki, Teruo Shimao, Toshitaro Saito, Shizuo Nakanishi | 1981-08-04 |