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Akitomi Semba — 21 Patents

Hitachi: 20 patents #1,757 of 28,497Top 7%
HCHitachi Engineering & Services Co.: 2 patents #17 of 129Top 15%
MSMitsubishi Hitachi Power Systems: 1 patents #495 of 970Top 55%
Hitachi, JP: #215 of 2,929 inventorsTop 8%
Overall (All Time): #201,324 of 4,157,543Top 5%
21 Patents All Time
Akitomi Semba has been granted 21 US patents while listed as an inventor at Hitachi. The first was granted in 2001 and the most recent in November 2014. Akitomi Semba ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list Akitomi Semba in Hitachi, JP.

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8882356 Horizontal shaft type rotary machine Kenichi Hattori, Tadaaki Kakimoto, Keiji Fugane, Makoto Hemmi 2014-11-11
8049378 Forced cooling rotary electric machine Kenichi Hattori, Tadaaki Kakimoto, Mitsuru Saeki, Mitsunori Sezaki, Takashi Shibata 2011-11-01 $135,000
7939977 Rotary electrical device having particular coil support structure Kenichi Hattori, Tadaaki Kakimoto, Mitsuru Saeki, Takashi Shibata, Manabu Suzuki +1 more 2011-05-10 $164,000
7898128 Forced cooling rotary electric machine Kenichi Hattori, Tadaaki Kakimoto, Mitsuru Saeki, Mitsunori Sezaki, Takashi Shibata 2011-03-01 $127,000
7893574 Rotor of rotary-electric machine Kenichi Hattori, Mitsuru Saeki, Tadaaki Kakimoto, Takashi Watanabe, Manabu Suzuki +2 more 2011-02-22 $122,000
7832934 Thrust bearing device Makoto Hemmi 2010-11-16 $108,000
7825559 Rotating machine Akihito Nakahara, Kazuhiko Takahashi, Mamoru Kimura 2010-11-02 $84,000
7728473 Electric rotating machine and manufacturing method of the same Fumihiko Goto, Juichi Enyama 2010-06-01 $69,000
7638909 Rotor of rotary-electric machine Kenichi Hattori, Mitsuru Saeki, Tadaaki Kakimoto, Takashi Watanabe, Manabu Suzuki +2 more 2009-12-29 $79,000
7521829 Electric rotating machine and manufacturing method of the same Fumihiko Goto, Juichi Enyama 2009-04-21 $88,000
6936939 Rotating electric machine and cooling method thereof Mitsunori Yamashina, Kenichi Hattori, Akiyoshi Komura, Tadashi Sonobe, Junji Sato +2 more 2005-08-30 $67,000
6737768 Rotating electric machine Kazumasa Ide, Kenichi Hattori, Akiyoshi Komura, Mitsunori Yamashina, Tadashi Sonobe +2 more 2004-05-18 $269,000
6724107 Dynamo-electric machine Kazumasa Ide, Kenichi Hattori, Akiyoshi Komura, Mitsunori Yamashina, Tadashi Sonobe +2 more 2004-04-20 $259,000
6538351 Rotating machine with plural coolers in plural ventilation passages Tadashi Sonobe, Takashi Watanabe, Yasuomi Yagi, Junji Sato, Shinsaku Hakuta +4 more 2003-03-25 $90,000
6359351 Rotating machine Tadashi Sonobe, Takashi Watanabe, Yasuomi Yagi, Junji Sato, Shinsaku Hakuta +4 more 2002-03-19 $321,000
6359361 Armature winding and rotating electric machine using the same Shinichi Wakui, Miyoshi Takahashi, Kazumasa Ide, Ryoichi Shiobara, Hidenari Otani +1 more 2002-03-19 $321,000
6316852 Rotating machine Tadashi Sonobe 2001-11-13 $240,000
6265795 Rotating machine Tadashi Sonobe, Takashi Watanabe, Yasuomi Yagi, Junji Sato, Shinsaku Hakuta +4 more 2001-07-24 $396,000
6262501 Rotating machine Tadashi Sonobe, Takashi Watanabe, Yasuomi Yaji, Junji Sato, Shinsaku Hakuta +4 more 2001-07-17 $288,000
6262502 Rotating machine Tadashi Sonobe, Takashi Watanabe, Yasuomi Yagi, Junji Sato, Shinsaku Hakuta +4 more 2001-07-17 $288,000
6201323 Rotating machine Tadashi Sonobe, Takashi Watanabe, Yasuomi Yagi, Junji Sato, Shinsaku Hakuta +4 more 2001-03-13 $368,000