KF

Kunihiko Fujiwara

FU Fujikura: 55 patents #4 of 1,407Top 1%
NE Nec: 6 patents #2,374 of 14,502Top 20%
FC Furukawa Electric Co.: 4 patents #473 of 2,370Top 20%
NT NTT: 3 patents #1,627 of 4,871Top 35%
FC Futaba Industrial Co.: 3 patents #21 of 167Top 15%
UK Ushio Denki Kabushiki Kaisha: 1 patents #309 of 583Top 55%
FC Furakawa Electric Co.: 1 patents #1 of 49Top 3%
NS Nippon Steel: 1 patents #2,111 of 4,423Top 50%
TC The Furukawa Battery Co.: 1 patents #17 of 73Top 25%
FU Fujikara: 1 patents #1 of 16Top 7%
Overall (All Time): #31,711 of 4,157,543Top 1%
67
Patents All Time

Issued Patents All Time

Showing 1–25 of 67 patents

Patent #TitleCo-InventorsDate
12405429 Cleaning tool Shunsuke Fujita, Masashi Ohshima 2025-09-02
12353023 Cleaning tool Shunsuke Fujita 2025-07-08
11947170 Connector system, optical connection method, and optical connection member Hirotaka Asada, Kansei Shindo 2024-04-02
11841500 Cleaning tool with attachment, attachment, and cleaning tool Shunsuke Fujita, Junichi Nakane 2023-12-12
11782223 Optical connector Shuhei Kanno, Takahito Otomitsu 2023-10-10
11719884 Optical fiber alignment tool and method of setting optical fibers in fiber holder Thao Thi Thanh Nguyen, Junya Watanabe 2023-08-08
11294125 Optical connector Shunsuke Fujita, Takahito Otomitsu, Shuhei Kanno 2022-04-05
11275218 Optical connector and method for connecting optical connector Takahito Otomitsu, Shuhei Kanno, Shunsuke Fujita 2022-03-15
11262503 Fiber cutter Takaharu Matsuda, Ryo Koyama, Mitsuru Kihara 2022-03-01
10859767 Optical fiber cutter Takaharu Matsuda, Ryo Koyama, Mitsuru Kihara 2020-12-08
10802226 Cleaning tool Junichi Nakane, Shigeo Takahashi, Akihiro Nakama, Hirotaka Asada 2020-10-13
10782488 Connector-attached optical fiber cord with protective tube Thao Thi Thanh Nguyen, Junya Watanabe 2020-09-22
10345527 Holder and optical fiber processing method Takashi Yamaguchi, Yuji Aoyagi, Katsushi Nakayachi, Keisuke Yoneda 2019-07-09
10247885 Optical connector, and optical connector manufacturing method Takashi Yamaguchi 2019-04-02
10101541 Optical ferrule and optical connector Akihiro Nakama, Tatsuya Ohta, Takanobu Mikami 2018-10-16
9429717 Ferrule and ferrule with optical fiber Akihiro Nakama, Tatsuya Ohta, Akito Nishimura, Terutake Kobayashi 2016-08-30
9134485 Optical connector cleaning tool Junichi Nakane 2015-09-15
9063304 Ferrule and ferrule with optical fiber Tatsuya Ohta, Akito Nishimura, Terutake Kobayashi 2015-06-23
8814444 Optical connector Takaaki Ishikawa 2014-08-26
8699843 Optical fiber ribbon holding member, optical fiber ribbon holding method, and optical fiber ribbon bundle Terutake Kobayashi, Tetsuo Nozawa 2014-04-15
8625953 Optical fiber ribbon holding member, optical fiber ribbon holding method, optical fiber ribbon bundle and holding member fixture Terutake Kobayashi, Tetsuo Nozawa 2014-01-07
8555451 Cleaning device of optical connector Junichi Nakane 2013-10-15
D690889 Optical connector cleaner Junichi Nakane 2013-10-01
D681292 Optical connector cleaner Junichi Nakane 2013-04-30
8418305 Optical connector cleaning tool 2013-04-16