YI

Yoshitaka Iwaji

HI Hitachi: 36 patents #629 of 28,497Top 3%
HC Hitachi Industrial Equipment Systems Co.: 15 patents #16 of 550Top 3%
HS Hitachi Automotive Systems: 8 patents #192 of 1,636Top 15%
RE Renesas Electronics: 4 patents #1,016 of 4,529Top 25%
HC Hitachi Car Engineering Co.: 3 patents #152 of 465Top 35%
HA Hitachi Astemo: 2 patents #393 of 1,276Top 35%
HA Hitachi Appliances: 2 patents #31 of 109Top 30%
RT Renesas Technology: 1 patents #1,991 of 3,337Top 60%
HS Hitachi Home And Life Solutions: 1 patents #13 of 36Top 40%
JC Japan Servo Co.: 1 patents #92 of 161Top 60%
KC Kokusan Denki Co.: 1 patents #62 of 128Top 50%
Overall (All Time): #30,983 of 4,157,543Top 1%
68
Patents All Time

Issued Patents All Time

Showing 26–50 of 68 patents

Patent #TitleCo-InventorsDate
8810082 Linear motor Yasuaki Aoyama 2014-08-19
8766575 Synchronous electric motor drive system Shigehisa Aoyagi, Kazuaki Tobari, Ryoichi Takahata 2014-07-01
8760095 Rotator control device, rotator system, vehicle, electric car and electric generation system Daigo Kaneko, Kento Mochizuki, Takeshi Shinomiya, Daisuke KORI, Seikichi Masuda 2014-06-24
8742704 AC motor control device and AC motor driving system Junnosuke Nakatsugawa, Norihisa Iwasaki, Hirokazu Nagura 2014-06-03
8710788 Brushless motor drive apparatus and drive method Masaki Hano, Shigehisa Aoyagi 2014-04-29
8674647 Drive device for alternating current motor and electric motor vehicle Daigo Kaneko, Kouki Yamamoto 2014-03-18
8664902 Polyphase AC motor, driving device and driving method therefor Norihisa Iwasaki, Junnosuke Nakatsugawa 2014-03-04
8541971 Driving system of permanent magnet synchronous motor Toshifumi Sakai, Kiyoshi Sakamoto, Yoshiyuki Taguchi, Daigo Kaneko 2013-09-24
8410735 Torque ripple suppression control device for permanent magnet motor and electric power steering system Kazuaki Tobari, Junnosuke Nakatsugawa, Rikio Yoshikawa, Masamichi Yagai 2013-04-02
8362727 Control device for synchronous motor Yasuhiko Kokami, Minoru Kurosawa, Junnosuke Nakatsugawa 2013-01-29
8258732 Drive system of synchronous motor Yasuhiko Kokami, Minoru Kurosawa 2012-09-04
8232751 Drive system of synchronous motor Yasuhiko Kokami, Minoru Kurosawa 2012-07-31
8044618 Control apparatus for AC motor Junnosuke Nakatsugawa, Kazuaki Tobari, Kiyoshi Sakamoto 2011-10-25
7919941 Semiconductor power converter Shigehisa Aoyagi, Kazuaki Tobari, Kiyoshi Sakamoto, Donsheng Li 2011-04-05
7859209 Control device for synchronous motor Yasuhiko Kokami, Minoru Kurosawa, Junnosuke Nakatsugawa 2010-12-28
7847500 Synchronous motor control device Junnosuke Nakatsugawa, Yasuhiko Kokami, Minoru Kurosawa 2010-12-07
7839663 Converter and power converter that becomes it with the converter Takahiro Suzuki, Tsunehiro Endo, Yasuo Notohara, Yoshiaki Kurita, Tatsuo Ando +1 more 2010-11-23
7825620 Controller and constant measuring apparatus for AC motor Junnosuke Nakatsugawa, Kazuaki Tobari 2010-11-02
7808202 Beat-less controller for permanent magnet motor Kazuaki Tobari, Kiyoshi Sakamoto, Hajime Uematsu, Masakazu Hase 2010-10-05
7791295 Field weakening control apparatus for permanent magnet motor and electric power steering using same Kentaro Oi, Kazuaki Tobari, Mitsuo Sasaki, Tatsuo Matsumura 2010-09-07
7728543 Stepping motor controlling device Akio Takemori, Yoshifumi Kuwano, Hiroaki Taka 2010-06-01
7719226 Highly responsive permanent magnet motor controller Kazuaki Tobari, Daigo Kaneko, Hajime Uematsu, Masakazu Hase 2010-05-18
7671558 Induction motor controller Kouki Yamamoto, Toshiaki Okuyama, Hiroyuki Tomita, Koichiro Nagata 2010-03-02
7560896 Vector control apparatus for permanent magnet motor Kazuaki Tobari, Kentaro Ohi 2009-07-14
7471525 Converter and power converter that becomes it with the converter Takahiro Suzuki, Tsunehiro Endo, Yasuo Notohara, Yoshiaki Kurita, Tatsuo Ando +1 more 2008-12-30