Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4948625 | Method for forming surface layer by electric discharge process | Masahiko Suzuki, Nagao Saito, Naotake Mohri, Hideaki Takahashi | 1990-08-14 |
| 4937052 | Underground chemical reactor | Hideaki Takahashi, Katsuto Nakatsuka, Hiroyuki Abe | 1990-06-26 |
| 4665984 | Method of measuring crustal stress by hydraulic fracture based on analysis of crack growth in rock | Kazuo Hayashi, Hiroaki Niitsuma, Hideaki Takahashi, Hiroyuki Abe | 1987-05-19 |
| 4518464 | Method of detecting embrittlement of heat-resisting steel | Hideaki Takahashi, Kiyoshi Saitoh, Masamitsu Muramatsu, Kazushige Kimura | 1985-05-21 |