FT

Fumikazu Takahashi

HC Hitachi Computer Peripherals Co.: 11 patents #2 of 133Top 2%
KA Kao: 9 patents #309 of 3,221Top 10%
HI Hitachi: 5 patents #7,555 of 28,497Top 30%
KT Kabushiki Kaisha Toshiba: 3 patents #8,011 of 21,451Top 40%
HM Hitachi Maxell: 2 patents #441 of 1,211Top 40%
HA Hitachi Astemo: 2 patents #393 of 1,276Top 35%
Overall (All Time): #106,934 of 4,157,543Top 3%
33
Patents All Time

Issued Patents All Time

Showing 1–25 of 33 patents

Patent #TitleCo-InventorsDate
11560061 Motor drive device and electric vehicle system Noriya NAKAO, Kenichi Yoshida 2023-01-24
11312980 Method for producing 3-hydroxy-4-aminobenzoic acid compound Kyoshiro NONAKA 2022-04-26
11239784 Motor drive device, controller, and electric vehicle system Noriya NAKAO, Kazuaki Tobari, Shingo Nishiguchi 2022-02-01
10590428 Sophorolipid highly-productive mutant strain Takahiro Ichihara, Yasushi Kageyama, Masatoshi Tohata 2020-03-17
10590442 Method for producing C4 dicarboxylic acid Kyoshiro NONAKA 2020-03-17
10435684 Sophorolipid highly-productive mutant strain Takahiro Ichihara, Masatoshi Tohata, Atsuko Hayase 2019-10-08
10351862 Promoter Jitsuro KANEDA, Yuichi Tsuboi 2019-07-16
10063058 Power converter Takae Shimada, Kimiaki Taniguchi, Kosuke Abe 2018-08-28
9991819 Power conversion system and method for detecting isolated operation of the same Tomoyuki Hatakeyama, Akira Kikuchi, Kimiaki Taniguchi, Hirofumi Oyamada 2018-06-05
9680303 Power storage system and power source system Yoshihide Takahashi, Yusuke Katsuyama, Kimiaki Taniguchi, Akinori Uchida, Masahiro Hamaogi +1 more 2017-06-13
9540672 Method of producing glycolipids 2017-01-10
9515557 Step-up step-down converter device Kosuke Abe 2016-12-06
9306472 Power supply device operating switching elements of first and second switching legs to charge first and second capacitors to a voltage higher than a voltage crest value of an AC power supply and method of operating the power supply device Takae Shimada, Akihiko Kanouda, Nobuyuki Aihara 2016-04-05
9225181 Power storage system with constant current charge control or constant voltage charge control depending on battery terminal voltage in a charging process Kimiaki Taniguchi, Yusuke Katsuyama, Yoshihide Takahashi, Daisuke Ishida, Akinori Uchida +1 more 2015-12-29
9222111 Method of producing lauric acid-containing oil or fat Hiroshi Yoshida, Yasushi Takimura 2015-12-29
8564992 Power factor correction device and method with off time prediction for critical mode operation Masahiro Hamaogi, Yen-Shin Lai 2013-10-22
8486672 Method of producing lauric acid or an ester thereof Hiroshi Yoshida, Yasushi Takimura 2013-07-16
8338361 Fragrance composition Kazuyuki Fukuda, Yasushi Takimura, Takahiro Asada 2012-12-25
7923980 Digital controlled power supply Masahiro Hamaogi 2011-04-12
7880440 Switching power supply Akihiko Kanouda, Masahiro Hamaogi, Yoshihide Takahashi 2011-02-01
7840840 DC backup power supply system, a disk array and a DC backup power supply Minehiro Nemoto, Akihiko Kanouda, Masahiro Hamaogi, Yoshihide Takahashi 2010-11-23
7705562 Switching power supply unit and disk array system Akihiko Kanouda, Kuniyoshi Watanabe, Masahiro Hamaogi, Yoshihide Takahashi 2010-04-27
7683597 PWM signal generating circuit and power supply apparatus comprising such PWM signal generating circuit Takae Shimada, Hiroyuki Shoji, Yoshihide Takahashi, Wataru Mochizuki 2010-03-23
7589436 Data processing unit and DC backup power supply Akihiko Kanouda, Masahiro Hamaogi, Yoshihide Takahashi 2009-09-15
7495415 DC backup power supply system Akihiko Kanouda, Minehiro Nemoto, Masahiro Hamaogi, Yoshihide Takahashi, Takashi Tanabe +3 more 2009-02-24