Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5330292 | System and method for transmitting and calculating data in shield machine | Shoichi Sakanishi, Tetsuya Shinbo, Tomoyuki Abe, Yasuo Kanemitsu, Kanji Shibatani +2 more | 1994-07-19 |
| 5240350 | Apparatus for detecting position of underground excavator and magnetic field producing cable | Hiroaki Yamaguchi, Shuji Arakawa, Tomoyuki Abe, Yasuo Kanemitsu | 1993-08-31 |
| 5199818 | Method and apparatus for detecting collapse of natural ground in shield driving method | Masahiko Yamamoto, Kanji Shibatani, Hiroaki Yamaguchi, Yasuo Kanemitsu, Tetsuya Shinbo +2 more | 1993-04-06 |
| 4818107 | System for measuring the position of a moving body | Toyoichi Ono, Yoshihisa Ono, Shoichi Sakanishi | 1989-04-04 |