Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4717503 | Demolition agent for brittle materials | Yoshio Makino, Tomio Iwata, Masumi Itoh, Takayoshi Hirose | 1988-01-05 |
| 4411702 | Method for sheet forming a gypsum hardened body | Yoshio Makino, Yoshihiko Murata, Masaharu Yamaguchi, Naoyuki Fujisawa | 1983-10-25 |