Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4505397 | Apparatus for hoisting materials and placing concrete | Sakichi Isogai, Masaaki Takahashi, Takayoshi Imai, Kazuyoshi Nakanishi, Takefumi Ito +1 more | 1985-03-19 |
| 4190372 | Apparatus for treatment of sludge deposit | Atsushi Takagi, Hiroyuki Kuroiwa, Mitsuo Miura, Takefumi Ito, Masao Miyaguchi +1 more | 1980-02-26 |