KF

Kazuhiro Fujii

Shimano: 83 patents #5 of 759Top 1%
SC Sanyo Electric Co.: 4 patents #1,493 of 6,347Top 25%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
IN Intec: 1 patents #16 of 51Top 35%
Brother Kogyo: 1 patents #2,155 of 2,767Top 80%
MK Mitsubishi Kasei: 1 patents #404 of 911Top 45%
NC Nikki Co.: 1 patents #30 of 53Top 60%
KX Kabushiki Kaisha Xing: 1 patents #22 of 40Top 60%
DE Denso: 1 patents #6,940 of 11,792Top 60%
HS Hitachi Science Systems: 1 patents #30 of 77Top 40%
Overall (All Time): #16,754 of 4,157,543Top 1%
93
Patents All Time

Issued Patents All Time

Showing 1–25 of 93 patents

Patent #TitleCo-InventorsDate
12397877 Component and communication system Yoshiyuki Kasai, Akihiro NOZAKI, Tomohiro TAKIMOTO 2025-08-26
12330745 Communication system and control system Yoshiyuki Kasai, Akihiro NOZAKI, Tomohiro TAKIMOTO 2025-06-17
12097928 Control device for human-powered vehicle, control system for human-powered vehicle, and method for setting control state of control device Jumpei Nakamura, Kenta Kawakami, Toshio Tetsuka, Nobuyuki Kakinoki, Taihei Nishihara +1 more 2024-09-24
11091226 Bicycle controller and bicycle control system including bicycle controller Yasuhiro Tsuchizawa, Hiroshi Matsuda, Satoshi Shahana, Hiroyuki Miyoshi, Etsuyoshi Watarai 2021-08-17
11059543 Bicycle drive unit and bicycle drive system including bicycle drive unit Tadashi Ichida, Satoshi Shahana, Kazuhiro Takeda 2021-07-13
10836453 Bicycle controller and bicycle control system including bicycle controller Yasuhiro Tsuchizawa, Hiroshi Matsuda, Satoshi Shahana, Hiroyuki Miyoshi, Etsuyoshi Watarai 2020-11-17
10717494 Bicycle magnetism generation device and disc brake adapter Satoshi Shahana, Tadaharu KUROTOBI, Kanako Kiyokawa 2020-07-21
10597106 Bicycle display device Hiroaki Takeshita, Yuichiro Ishikawa, Takashi Komemushi, Satoshi Shahana, Hiroyuki Miyoshi 2020-03-24
10421519 Bicycle controller Yasuhiro Tsuchizawa, Hiroshi Matsuda, Satoshi Shahana 2019-09-24
RE47492 Bicycle control device for controlling an electric device Akinobu Uno, Takuro Jinbu 2019-07-09
10227106 Bicycle controller and bicycle drive device Yasuhiro Tsuchizawa, Hiroshi Matsuda, Satoshi Shahana, Hiroyuki Miyoshi, Mitsuru Tauchi 2019-03-12
10086907 Bicycle electrical component Hiroshi Tachibana, Yuta Mizutani, Keijiro Nishi, Yuki KATAOKA, Atsushi Komatsu +2 more 2018-10-02
10065706 Bicycle component fixing structure and bicycle component assembly Yoshinori Iino, Eiji Mishima 2018-09-04
9815522 Bicycle shifting apparatus Hiroshi Tachibana, Yuta Mizutani, Keijiro Nishi, Yuki KATAOKA, Ryuichiro Takamoto +1 more 2017-11-14
9616766 Power source device, vehicle provided with power source device, and power storage device 2017-04-11
9493210 Electric power storage holder Takafumi Katsura 2016-11-15
9463845 Bicycle gear changing control apparatus Mao Kuroda, Nobuyuki Kakinoki, Hideki Ikemoto 2016-10-11
9394031 Bar end electric shifter for bicycle Kiwame Oku 2016-07-19
9371103 Bicycle shift notification apparatus Yoshiyuki Kasai 2016-06-21
9278728 Bicycle shifting control apparatus and method of controlling derailleur Taketoshi Sato, Hiroshi Tachibana, Mao Kuroda, Toshinari OOISHI, Naohiko Yamada 2016-03-08
8998756 Apparatus for adjusting a position of a bicycle derailleur Tadashi Ichida, Ryuichiro Takamoto, Haruyuki Takebayashi 2015-04-07
8931365 Bicycle control device for controlling an electric device Akinobu Uno, Takuro Jinbu 2015-01-13
8906528 Bicycle electric power source assembly Takafumi Katsura 2014-12-09
8408526 Carburetor with starting fuel supply mechanism 2013-04-02
8297143 Electrical bicycle shift control device Akinobu Uno 2012-10-30