SI

Seiji Ishida

HC Hitachi Construction Machinery Co.: 20 patents #45 of 1,234Top 4%
HI Hitachi: 16 patents #2,438 of 28,497Top 9%
KS Kobe Steel: 3 patents #309 of 2,031Top 20%
HC Hitachi Industrial Equipment Systems Co.: 3 patents #164 of 550Top 30%
MM Mitsubishi Motors: 2 patents #508 of 1,823Top 30%
HS Hitachi Automotive Systems: 1 patents #965 of 1,636Top 60%
SC Sanyo Electric Co.: 1 patents #3,644 of 6,347Top 60%
SC Snow Brand Milk Products Co.: 1 patents #171 of 337Top 55%
AT Agency Of Industrial Science And Technology: 1 patents #568 of 1,778Top 35%
TK Toyo Boseki Kabushiki Kaisha: 1 patents #541 of 1,085Top 50%
📍 Tsuchiura, JP: #8 of 519 inventorsTop 2%
Overall (All Time): #66,147 of 4,157,543Top 2%
44
Patents All Time

Issued Patents All Time

Showing 1–25 of 44 patents

Patent #TitleCo-InventorsDate
12319155 Drive system for dump truck Satoru Kaneko, Kazuo Nishihama, Masatoshi Yoshimura, Kosuke MATSUO, Toshihiko Watanabe +1 more 2025-06-03
12224650 Drive system having an induction generator with a main winding and auxiliary winding Kazuo Nishihama, Masatoshi Yoshimura, Toshihiko Watanabe, Toshihiko Ishida 2025-02-11
12191789 Drive system Kazuo Nishihama, Masatoshi Yoshimura, Kosuke MATSUO, Satoru Kaneko, Tokuma IKEGAMI +1 more 2025-01-07
11964569 Construction machine Toshihiko Watanabe, Ken Takeuchi 2024-04-23
11220803 Construction machine Makoto Ishijima, Kenta TANIGAKI 2022-01-11
11198352 Electricity storage device controller, electric system and construction machine Itaru NAYA, Ken Takeuchi, Mutsumi Kikuchi 2021-12-14
11149409 Construction machine Itaru NAYA, Shinya Imura, Masafumi HITA, Ken Takeuchi 2021-10-19
11053661 Work machine Jun Kikuchi, Manabu Edamura 2021-07-06
10450723 Hybrid construction machinery Tadashi Osaka, Ken Takeuchi 2019-10-22
10150465 Hybrid construction machine Masafumi HITA, Ken Takeuchi, Shinya Imura 2018-12-11
10060095 Hybrid work machine Shinya Imura, Masafumi HITA, Hiroaki AMANO, Ken Takeuchi, Itaru NAYA +1 more 2018-08-28
10047501 Control device of construction machine Shinya Imura, Masafumi HITA 2018-08-14
9617715 Construction machine Hidetoshi Satake, Yusuke Kajita, Shiro Yamaoka 2017-04-11
9431879 Generator motor and electric vehicle using same Satoshi Kikuchi, Tsutomu Miyoshi, Itsuro Sawada, Makoto Ishijima, Shigenori Aoki 2016-08-30
9421873 Construction machine Masataka Sasaki, Yusuke Kajita, Hidetoshi Satake, Manabu Edamura, Kazuo Fujishima +1 more 2016-08-23
9399856 Hydraulic working machine Kazuo Fujishima, Yusuke Kajita, Mitsuo Sonoda, Masatoshi Hoshino, Akira Nakayama +4 more 2016-07-26
9108645 Driving system for railroad vehicle Motomi Shimada, Takashi Kaneko, Kento Mochizuki 2015-08-18
9065361 Hybrid construction machine Shinji Ishihara, Shinya Imura, Masatoshi Hoshino, Hidetoshi Satake, Manabu Edamura +2 more 2015-06-23
9020707 Construction machine having swing body Shinya Imura, Kouji Ishikawa, Yusuke Kajita, Hidetoshi Satake, Takatoshi Ooki +1 more 2015-04-28
8950180 Hybrid construction machine Takatoshi Ooki, Yusuke Kajita, Hidetoshi Satake, Shiho Izumi, Kouji Ishikawa +2 more 2015-02-10
8924100 Hybrid construction machine Shinya Imura, Hidetoshi Satake, Yusuke Kajita, Kazuo Fujishima, Takatoshi Ooki 2014-12-30
7920395 Pulse width modulation method for a power converter Atsuhiko Nakamura 2011-04-05
7570085 Gate driver circuit for switching device Katsumi Ishikawa, Yutaka Sato, Masahiro Nagasu 2009-08-04
7433403 Pulse width modulation method for a power converter Atsuhiko Nakamura 2008-10-07
6704212 PWM inverter with long carrier wave insertion Teiichi Furukawa, Masahiro Hiraga, Hiroyuki Tomita, Toshiaki Okuyama 2004-03-09