Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11863025 | Resin molded rotor, canned motor, canned motor pump, fan scrubber, and vacuum pump apparatus | Takanori Inada | 2024-01-02 |
| 8251678 | Vacuum pump unit | Takashi Hozumi, Nobuhito Miyashita, Takanori Inada, Yoshinori Ojima, Susumu Miyake +1 more | 2012-08-28 |
| 7338266 | Screw pump and method of operating the same | Nobuhito Miyashita | 2008-03-04 |
| 6902380 | Vacuum pump with pump rotor pairs and permanent magnet motor | Yoshinori Ojima, Takanori Inada, Kiyoshi Yanagisawa | 2005-06-07 |
| 6761542 | Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor | Yoshinori Ojima, Genichi Sato, Yasushi Hisabe, 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, Genichi Sato, Yasushi Hisabe, 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, Genichi Sato, Yasushi Hisabe, Masami Nagayama, Katsuaki Usui +1 more | 2001-02-06 |
| 5923108 | Canned motor | Akira Suzuki | 1999-07-13 |
| 5846062 | Two stage screw type vacuum pump with motor in-between the stages | Kiyoshi Yanagisawa, Yoshinori Ojima, Yasushi Hisabe | 1998-12-08 |
| 5814913 | Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor | Yoshinori Ojima, Genichi Sato, Yasushi Hisabe, Masami Nagayama, Katsuaki Usui +1 more | 1998-09-29 |
| 5779453 | Vacuum pump motor arrangement having reduced heat generation | Masami Nagayama, Katsuaki Usui, Yoshinori Ojima, Genichi Sato, Yasushi Hisabe | 1998-07-14 |
| 5209579 | Thrust bearing device | — | 1993-05-11 |
| 4886378 | Thrust bearing device | — | 1989-12-12 |
| 4636672 | Submersible motor | Minoru Iwata | 1987-01-13 |