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, Yasuhiko Ichimura, Yasuo Kanemitsu +2 more | 1994-07-19 |
| 5276367 | Offset drift reducing device for use in a differential amplification circuit | Masao Hagiwara, Masakazu Moritoki | 1994-01-04 |
| 5208538 | Apparatus having a pair of magnetic field generating cables for measuring position of an underground excavator | Shoichi Sakanishi | 1993-05-04 |
| 5199818 | Method and apparatus for detecting collapse of natural ground in shield driving method | Masahiko Yamamoto, Hiroaki Yamaguchi, Yasuo Kanemitsu, Tetsuya Shinbo, Tomoyuki Abe +2 more | 1993-04-06 |