| 5727131 |
Neural network learning device |
Hiroaki Tanaka, Tomohisa Yoshimi, Takayoshi Kawai, Yuji Ito, Yuji Takeo |
1998-03-10 |
| 5118220 |
Method of building underground cavern and tunneling machine |
Kihachior Furumi |
1992-06-02 |
| 4675634 |
Variable-capacitance tuning circuit for high-frequency signals |
Seiji Matsushita, Akira Fujishima, Isao Arika |
1987-06-23 |
| 4637758 |
Method of driving hollow piles into the ground |
Hiroaki Tamaki |
1987-01-20 |
| 4494613 |
Method and apparatus for driving hollow piles into the ground |
Hiroaki Tamaki |
1985-01-22 |
| 4363518 |
Method and apparatus for fracturing rock beds |
Shigetake Akanuma |
1982-12-14 |
| 4329665 |
Noise suppressing connector |
Senji Kawai, Yoshihumi Morimoto, Masayuki Watanabe, Hiroshi Yamaya, Hitoshi Kurohata |
1982-05-11 |
| 4205019 |
Process for producing thermoplastic resin |
Takesaburo Shima, Hiroshi Kozima, Tomio Yoshida |
1980-05-27 |
| 4193634 |
Method and apparatus for excavation |
Kihachiro Furumi |
1980-03-18 |
