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 1–25 of 68 patents

Patent #TitleCo-InventorsDate
12061236 Power conversion device, rotating machine system, and diagnosis method Kohji Maki, Hironori Ohashi, Atsuhiko Nakamura 2024-08-13
11437944 Power conversion device Kazuaki Tobari, Agnes HADINATA, Yusaku Onuma, Takuya Sugimoto, Atsuhiko Nakamura +2 more 2022-09-06
11424707 Power conversion apparatus Kazuaki Tobari, Agnes HADINATA, Yusaku Onuma, Atsuhiko Nakamura, Takuya Sugimoto 2022-08-23
11325641 Control device for electric power steering apparatus and electric power steering apparatus Takafumi Hara, Toshiyuki Ajima, Mitsuo Sasaki, Shigehisa Aoyagi, Takumi Hisazumi 2022-05-10
11303236 Induction motor overheat monitoring method, induction motor monitoring device, and induction motor control system Guangbin Zhou, Satoru Kaneko, Kazuaki Tobari 2022-04-12
11273712 AC electric motor control device Kazuaki Tobari, Yuuta Iwase, Yusaku Onuma 2022-03-15
11233474 Rotating machine drive system Akeshi Takahashi, Shinji Sugimoto 2022-01-25
11193978 Power conversion device, rotating machine system using same, and diagnosis method for same Kohji Maki, Tetsuji Kato 2021-12-07
11196377 Motor drive system Midori Takaoka, Junki ISOBE, Kohei Myoen, Toshiyuki Ajima, Kazuaki Tobari 2021-12-07
11139771 Control device and control method for AC motor and AC motor drive system Naoki Okamoto, Masaki Hano, Takeshi Umetsu 2021-10-05
10903767 Synchronous motor control apparatus Agnes HADINATA, Kazuaki Tobari, Yusaku Onuma, Takuya Sugimoto, Masato Ohya 2021-01-26
10804765 Electromechanical integral motor Hisashi Tanie, Yuji Enomoto, Hirooki TOKOI, Takayoshi Nakamura, Naoki Sakurai +2 more 2020-10-13
10658960 Motor control system and motor control method Satoshi Sumita 2020-05-19
10644627 Control device of synchronous electric motor, integrated motor system, pump system, and positioning system Masaki Hano, Naoki Okamoto, Takeshi Umetsu 2020-05-05
10608561 Control device of AC motor Satoshi Sumita 2020-03-31
10505490 Motor control system Satoshi Sumita 2019-12-10
10218252 Linear motor and positioning apparatus Yasuaki Aoyama, Kohji Maki 2019-02-26
9923502 Synchronous motor control apparatus and drive system using the same Masaki Hano, Naoki Okamoto, Takeshi Umetsu 2018-03-20
9729091 Sensorless driving apparatus and sensorless driving method for brushless motor Masaki Hano 2017-08-08
9712032 Linear motor and linear motor drive system Yasuaki Aoyama, Akiyoshi Komura 2017-07-18
9350284 Power conversion device Toshifumi Sakai, Koichiro Nagata, Motomi Shimada 2016-05-24
9325264 Electric motor drive device Ryoichi Takahata, Takahiro Suzuki 2016-04-26
9000626 Thrust generation mechanism, drive device, XY stage and XYZ stage Yasuaki Aoyama 2015-04-07
8884575 Drive system for synchronous electrical motor Ryoichi Takahata, Shigehisa Aoyagi, Kazuaki Tobari 2014-11-11
8878480 Synchronous motor drive system and synchronous motor Shigehisa Aoyagi, Kazuaki Tobari, Ryoichi Takahata, Masaki Hano 2014-11-04