Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4299633 | Method of preparing green compositions containing a hydraulic substance and method of utilizing the same | Yasuro Ito, Yoshiro Higuchi, Sampei Kemmochi, Hideharu Kaga, Yasuhiro Yamamoto | 1981-11-10 |
| 4292351 | Method of blasting concrete | Yasuro Ito, Yoshiro Higuchi, Hideharu Kaga, Yasuhiro Yamamoto, Tadayuki Sumita | 1981-09-29 |