Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646199 | Composition for mold | Akira Yoshida, Naoki Kyochika, Akio Mamba, Hitoshi Funada | 1997-07-08 |
| 5616631 | Binder composition for mold making, binder/curing agent composition for mold making, sand composition for mold making, and process of making mold | Shigeo Nakai, Masuo Sawa, Masayuki Kato, Mitsuru Sakai, Shinya Nomura | 1997-04-01 |
| 5602192 | Process for producing sand mold | Akira Yoshida, Naoki Kyochika, Tsutomu Tanaka, Katsumi Matsuyama | 1997-02-11 |