Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9976552 | Performance prediction device and performance prediction method for compressor | Manabu Yagi, Hideo Nishida, Kazutoshi Yanagihara | 2018-05-22 |
| 9004857 | Barrel-shaped centrifugal compressor | Yohei MAGARA, Kazuyuki Yamaguchi, Mitsuhiro Narita, Naohiko Takahashi, Akira Endo | 2015-04-14 |
| 8960009 | Apparatus and method for measuring vibration characteristics | Naohiko Takahashi, Kazutoshi Yanagihara | 2015-02-24 |
| 8631961 | End wall closure apparatus | Tomohiro Naruse, Tetsuya Kuwano, Taiji Hashimoto, Mitsuhiro Narita | 2014-01-21 |
| 8151834 | Hydrogen compressor system | Shinichiro Kurita, Shigeru Arai, Akinori Akanuma, Youichirou Fukai | 2012-04-10 |
| 7563078 | Reciprocating compressor | Shigeru Arai, Youichirou Fukai, Yasuo Fukushima | 2009-07-21 |
| 7210895 | Turbo compressor and method of operating the turbo compressor | Koji Kotani, Kazuo Takeda | 2007-05-01 |
| 7172015 | Heat exchanger for air compressor | Kazuki Takahashi, Seiji Tsuru, Minoru Taniyama, Tomohiro Naruse, Toshio Hattori | 2007-02-06 |
| 7052250 | Reciprocating compressor | Shigeru Arai, Youichirou Fukai, Yasuo Fukushima | 2006-05-30 |
| 6692224 | Turbo compressor | Kazuo Takeda, Naohiko Takahashi, Hideo Nishida, Hiromi Kobayashi, Tomoyuki Ishikawa | 2004-02-17 |
| 6679689 | Screw compressor | Kazuki Takahashi, Seiji Tsuru, Minoru Taniyama | 2004-01-20 |
| 6572350 | Screw compressor | Kazuki Takahashi, Seiji Tsuru, Minoru Taniyama | 2003-06-03 |
| 6462492 | Position-sensorless controlling method of synchronous motor | Kiyoshi Sakamoto, Tsunehiro Endou, Naohiko Takahashi | 2002-10-08 |
| 6441523 | Very high permanent magnet type electric rotating machine system | Haruo Koharagi, Tsunehiro Endou, Tsukasa Taniguchi, Kouki Yamamoto, Satoshi Kikuchi +2 more | 2002-08-27 |
| 6435822 | Labyrinth sealing device, and fluid machine providing the same | Hiromi Kobayashi, Hideo Nishida, Takashi Eino, Kazuki Takahashi | 2002-08-20 |
| 6396229 | Method of estimating a rotor position of synchronous motor, method of controlling synchronous motor with no position sensor and a controller of synchronous motor | Kiyoshi Sakamoto, Tsunehiro Endou, Naohiko Takahashi, Hiroshi Fujii | 2002-05-28 |
| 6376958 | Permanent magnet type synchronous motor and air compressor | Haruo Koharagi, Tsukasa Taniguchi, Kouki Yamamoto, Satoshi Kikuchi, Miyoshi Takahashi +2 more | 2002-04-23 |
| 6369478 | Permanent-magnet-type electric rotating machine and air compressor and generator using the same | Haruo Koharagi, Tsukasa Taniguchi, Miyoshi Takahashi, Shinichi Wakui, Yasuo Fukushima +1 more | 2002-04-09 |
| 6302645 | Labyrinth sealing device, and fluid machine providing the same | Hiromi Kobayashi, Hideo Nishida, Takashi Eino, Kazuki Takahashi | 2001-10-16 |
| 6196809 | Two-stage centrifugal compressor | Kazuki Takahashi, Hideo Nishida, Naohiko Takahashi, Yasuo Fukushima | 2001-03-06 |
| 6111333 | Magnetic bearing, rotating machine mounting the same, and method for driving rotating machine | Naohiko Takahashi, Tsunehiro Endo, Minoru Yoshihara, Yasuo Fukushima, Kazuki Takahashi | 2000-08-29 |
| 6047461 | Rotor for permanent magnet excited, high-speed electric rotary machine, manufacturing method of the same and electric rotary machine including the same | Kazuki Takahashi, Hideo Nishida, Naohiko Takahashi, Yasuo Fukushima | 2000-04-11 |
| 6039535 | Labyrinth sealing device, and fluid machine providing the same | Hiromi Kobayashi, Hideo Nishida, Takashi Eino, Kazuki Takahashi | 2000-03-21 |
| 5980218 | Multi-stage compressor having first and second passages for cooling a motor during load and non-load operation | Kazuki Takahashi, Hideo Nishida, Naohiko Takahashi | 1999-11-09 |
| 5709531 | Centrifugal compressor and vaned diffuser | Hideo Nishida, Hiromi Kobayashi, Hiroto Yoshikai, Sadashi Tanaka | 1998-01-20 |