| 6761542 |
Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor |
Yoshinori Ojima, Kozo Matake, Genichi Sato, Masami Nagayama, Katsuaki Usui +1 more |
2004-07-13 |
| 6447271 |
Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor |
Yoshinori Ojima, Kozo Matake, Genichi Sato, Masami Nagayama, Katsuaki Usui +1 more |
2002-09-10 |
| 6183218 |
Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor |
Yoshinori Ojima, Kozo Matake, Genichi Sato, Masami Nagayama, Katsuaki Usui +1 more |
2001-02-06 |
| 5846062 |
Two stage screw type vacuum pump with motor in-between the stages |
Kiyoshi Yanagisawa, Kozo Matake, Yoshinori Ojima |
1998-12-08 |
| 5814913 |
Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor |
Yoshinori Ojima, Kozo Matake, Genichi Sato, Masami Nagayama, Katsuaki Usui +1 more |
1998-09-29 |
| 5779453 |
Vacuum pump motor arrangement having reduced heat generation |
Masami Nagayama, Katsuaki Usui, Kozo Matake, Yoshinori Ojima, Genichi Sato |
1998-07-14 |
| 5710470 |
Hydrodynamic bearing assembly |
Kimio Komata, Toshihiro Otani, Katsutoshi Chiba, Akihiro Machida |
1998-01-20 |
| 4998033 |
Gas dynamic bearing for spindle motor |
Noriyuki Osada, Toshihiro Ohtani, Masahiko Kishi, Yoshio Sato, Daisuke Konno +6 more |
1991-03-05 |
| 4984881 |
Rotation supporting device of a polygon mirror |
Noriyuki Osada, Toshihiro Ohtani, Toshiya Kanamori |
1991-01-15 |