NT

Naohiko Takahashi

HI Hitachi: 16 patents #2,438 of 28,497Top 9%
EX Exedy: 2 patents #106 of 223Top 50%
HP Hitachi Industrial Products: 2 patents #8 of 86Top 10%
NC Nippon Zeon Co.: 1 patents #307 of 609Top 55%
Overall (All Time): #206,363 of 4,157,543Top 5%
21
Patents All Time

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDate
11255377 Tilting-pad-type journal bearing Isao Hagiya, Jun Ichimura 2022-02-22
11204062 Tilting pad journal bearing and rotary machine using same Makoto Hemmi, Jun Ichimura, Motoki Sato 2021-12-21
9004857 Barrel-shaped centrifugal compressor Yohei MAGARA, Kazuyuki Yamaguchi, Mitsuhiro Narita, Haruo Miura, Akira Endo 2015-04-14
8960009 Apparatus and method for measuring vibration characteristics Haruo Miura, Kazutoshi Yanagihara 2015-02-24
6692224 Turbo compressor Haruo Miura, Kazuo Takeda, Hideo Nishida, Hiromi Kobayashi, Tomoyuki Ishikawa 2004-02-17
6462492 Position-sensorless controlling method of synchronous motor Kiyoshi Sakamoto, Tsunehiro Endou, Haruo Miura 2002-10-08
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, Haruo Miura, Hiroshi Fujii 2002-05-28
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
6251018 Dampening disk assembly with spring retaining plate Hideki Hashimoto, Takeshi Noguchi 2001-06-26
6196809 Two-stage centrifugal compressor Kazuki Takahashi, Haruo Miura, Hideo Nishida, Yasuo Fukushima 2001-03-06
6138811 Spline hub and method of manufacturing the spline hub Hideki Hashimoto, Katsutoshi Seino 2000-10-31
6111333 Magnetic bearing, rotating machine mounting the same, and method for driving rotating machine Tsunehiro Endo, Haruo Miura, 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 Haruo Miura, Kazuki Takahashi, Hideo Nishida, Yasuo Fukushima 2000-04-11
5980218 Multi-stage compressor having first and second passages for cooling a motor during load and non-load operation Kazuki Takahashi, Haruo Miura, Hideo Nishida 1999-11-09
5576587 High-speed rotor and controller for controlling magnetic bearings used therefor Minoru Hiroshima, Yasuo Fukushima 1996-11-19
5491396 Magnetic bearing apparatus and rotating machine having such an apparatus Minoru Hiroshima, Osami Matsushita, Yasuo Fukushima 1996-02-13
5486729 Method and apparatus for controlling a magnetic bearing Osami Matsushita, Mitsuho Yoneyama, Yasuo Fukushima, Minoru Hiroshima, Tadashi Kaneki +2 more 1996-01-23
5408875 Balancing method for flexible rotor and a balancer applicable to the balancing method Osami Matsushita, Mitsuho Yoneyama, Yasuo Fukushima, Minoru Hiroshima, Naohumi Sakanashi +1 more 1995-04-25
5256952 Magnetic bearing control method and apparatus Mitsuho Yoneyama, Osami Matsushita, Yasuo Fukushima 1993-10-26
4992714 Band pass filter device and a method of filtering using such a device Osami Matsushita, Michiyuki Takagi, Toyomi Yoshida, Ikuhiro Saitoh 1991-02-12
4569963 Adhesive composition for bonding fibers to rubber Hiroshi Hisaki, Yasuhiro Nakano, Yuichi Inoue 1986-02-11