Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8398375 | Impeller | Kohei Tanaka, Yoshimasa Chiba, Koji Hayashi, Tomohiro Naruse, Takaki Fukuchi +1 more | 2013-03-19 |
| 8075260 | Centrifugal turbomachinery | Takashi Aki, Akira Manabe, Takaki Fukuchi | 2011-12-13 |
| 7559742 | Inlet casing and suction passage structure | Yasuhiro Inoue, Takashi Aki, Seiji Kawabata | 2009-07-14 |
| 7338255 | Turbo-type fluid machine and a stepped seal apparatus to be used therein | Shusaku Nabesaka, Shinsuke Sakurai | 2008-03-04 |
| 6749397 | Fluidal machine | Yoshiharu Ueyama, Michiyuki Takagi, Yasushi Takano, Yukiji Iwase, Michiaki Ida +2 more | 2004-06-15 |
| 6568904 | Fluidal machine | Yoshiharu Ueyama, Michiyuki Takagi, Yasushi Takano, Yukiji Iwase, Michiaki Ida +2 more | 2003-05-27 |
| 6442792 | Vacuum cleaner | Takayuki Sudou, Ryuji Ikeda, Susumu Sato, Shigenori Sato, Taiji Tajima +3 more | 2002-09-03 |
| 6371724 | Centrifugal fluid machine | Yoshihiro Nagaoka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki +2 more | 2002-04-16 |
| 6364607 | Centrifugal fluid machine | Yoshihiro Nagaoka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki +2 more | 2002-04-02 |
| 6312222 | Centrifugal fluid machine | Yoshihiro Nagaoka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki +2 more | 2001-11-06 |
| 6290460 | Centrifugal fluid machine | Yoshihiro Nagaoka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki +2 more | 2001-09-18 |
| 6162015 | Centrifugal type fluid machine | Yuuji Nagai, Yoshiharu Ueyama, Setsuo Yazawa, Yoshihiro Nagaoka | 2000-12-19 |
| 6139266 | Centrifugal fluid machine | Yoshihiro Nagaoka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki +2 more | 2000-10-31 |
| 6132136 | Drainage water pumping station and method for operating the same | Kunio Takada, Kenji Otani | 2000-10-17 |
| 6102618 | Large-depth underground drainage facility and method of running same | Kunio Takada, Kenji Otani, Masayuki Yamada, Saburo Maru, Sumio Sudo | 2000-08-15 |
| 5971705 | Centrifugal fluid machine | Yoshihiro Nagaoka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki +2 more | 1999-10-26 |
| 5909982 | Large-depth underground drainage facility and method of running same | Kunio Takada, Kenji Otani, Masayuki Yamada, Saburo Maru, Sumio Sudo | 1999-06-08 |
| 5857834 | Centrifugal fluid machine | Yoshihiro Nagaoka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki +2 more | 1999-01-12 |
| 5752785 | Drainage pump station and drainage operation method for drainage pump station | Seiji Miura, Kunio Takada, Masayuki Yamada, Yutaka Shimada, Akira Manabe | 1998-05-19 |
| 5733064 | Drainage water pumping station and method for operating the same | Kunio Takada, Kenji Otani | 1998-03-31 |
| 5709531 | Centrifugal compressor and vaned diffuser | Hideo Nishida, Hiromi Kobayashi, Haruo Miura, Hiroto Yoshikai | 1998-01-20 |
| 5634740 | Large-depth underground drainage facility and method of running same | Kunio Takada, Kenji Otani, Masayuki Yamada, Saburo Maru, Sumio Sudo | 1997-06-03 |
| 5603587 | Drainage water pumping station and method for operating the same | Kunio Takada, Kenji Otani | 1997-02-18 |
| 5595473 | Centrifugal fluid machine | Yoshihiro Nagaoka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki +2 more | 1997-01-21 |
| 5516263 | Centrifugal compressor and vaned diffuser | Hideo Nishida, Hiromi Kobayashi, Haruo Miura, Hiroto Yoshikai | 1996-05-14 |