Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10320260 | Canned motor and vacuum pump | Takashi Hozumi, Naoya Yoshida, Takanori Inada, Toshiharu Nakazawa, Atsushi Oyama | 2019-06-11 |
| 9660496 | Canned motor and vacuum pump | Takashi Hozumi, Naoya Yoshida, Takanori Inada, Toshiharu Nakazawa, Atsushi Oyama | 2017-05-23 |
| 9614411 | Canned motor and vacuum pump | Takashi Hozumi, Naoya Yoshida, Takanori Inada, Toshiharu Nakazawa, Atsushi Oyama | 2017-04-04 |
| 9429166 | Sealing structure, vacuum pump motor including same sealing structure, and vacuum pump | Takanori Inada, Naoya Yoshida, Takashi Hozumi, Toshiharu Nakazawa | 2016-08-30 |
| 9291155 | Vacuum pump motor and vacuum pump having balance rings | Takashi Hozumi, Naoya Yoshida, Takanori Inada, Toshiharu Nakazawa | 2016-03-22 |
| 8251678 | Vacuum pump unit | Takashi Hozumi, Nobuhito Miyashita, Takanori Inada, Kozo Matake, Susumu Miyake +1 more | 2012-08-28 |
| 6902380 | Vacuum pump with pump rotor pairs and permanent magnet motor | Kozo Matake, Takanori Inada, Kiyoshi Yanagisawa | 2005-06-07 |
| 6761542 | Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor | Kozo Matake, Genichi Sato, Yasushi Hisabe, Masami Nagayama, Katsuaki Usui +1 more | 2004-07-13 |
| 6700273 | Gas transfer machine | Toshiharu Nakazawa, Shinichi Sekiguchi, Nobuharu Noji | 2004-03-02 |
| 6447271 | Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor | Kozo Matake, 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 | Kozo Matake, Genichi Sato, Yasushi Hisabe, Masami Nagayama, Katsuaki Usui +1 more | 2001-02-06 |
| 6092994 | Liquid delivery device, method of controlling such liquid delivery device, and liquid delivery pump | Shigekazu Yamamoto, Tetsuma Ikegami, Hiroshi Sobukawa, Shun-ichi Aiyoshizawa, Toshiharu Nakazawa | 2000-07-25 |
| 5846062 | Two stage screw type vacuum pump with motor in-between the stages | Kiyoshi Yanagisawa, Kozo Matake, Yasushi Hisabe | 1998-12-08 |
| 5814913 | Multishaft electric motor and positive-displacement pump combined with such multishaft electric motor | Kozo Matake, 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, Kozo Matake, Genichi Sato, Yasushi Hisabe | 1998-07-14 |
| 5149253 | Magnet pumps | Eiji Miyamoto, Tadashi Yakabe, Toshiya Kanamori | 1992-09-22 |