KO

Kenichiro Ohtsuka

Sumitomo Electric Industries: 32 patents #425 of 21,551Top 2%
SC Sei Optifrontier Co.: 6 patents #12 of 82Top 15%
NT NTT: 4 patents #1,310 of 4,871Top 30%
PA Panasonic: 2 patents #9,678 of 21,108Top 50%
FU Fujikura: 1 patents #788 of 1,407Top 60%
FC Furukawa Electric Co.: 1 patents #1,242 of 2,370Top 55%
TC Toyokuni Electric Cable Co.: 1 patents #7 of 19Top 40%
Overall (All Time): #90,105 of 4,157,543Top 3%
37
Patents All Time

Issued Patents All Time

Showing 1–25 of 37 patents

Patent #TitleCo-InventorsDate
10641971 Optical connector Tsutomu Kamada, Motoyoshi KIMURA 2020-05-05
10539745 Optical connector Tsutomu Kamada, Yuji Suzuki, Motoyoshi KIMURA, Yoshinobu Oki 2020-01-21
10197739 Optical connector plug, receptacle for optical connector, and optical connector connection structure Yuji Suzuki, Norihiko Kitahara, Motoyoshi KIMURA, Masanori Yamanaka, Akihiko Miyada +2 more 2019-02-05
10114179 Optical connector, pin keeper, pin insertion jig, expansion member, and pin insertion tool Tsutomu Kamada, Motoyoshi KIMURA, Tatsuhiko Shitomi 2018-10-30
10101551 Multi-core/single-core conversion module and multi-core/single-core conversion apparatus Junji Fukui, Yuji Suzuki, Hiroyasu Toyooka, Takayuki Suzuki 2018-10-16
9958620 Optical fiber with connector Kotaro Ueda, Tsutomu Kamada, Junji Fukui, Masashi OKA 2018-05-01
9176295 Stranded optical cable with connectors Itaru Sakabe, Kazuyuki Soma, Tomoyuki Hattori, Masakazu Shigehara 2015-11-03
8511910 Optical connector and method of assembling the same Masaki Ohmura, Masahiro Hamada, Mitsuru Kihara, Hitoshi Son 2013-08-20
8480311 Optical connector, method of attaching the optical connector to coated optical fiber, and optical connection member Masahiro Hamada, Masaki Ohmura, Mitsuaki Tamura, Mitsuru Kihara, Ryo Koyama +1 more 2013-07-09
8478100 Optical cable gripping member Yoshinobu Toda, Daizo Nishioka, Takayasu Yamauchi, Yukihiro Yokomachi, Keiichiro Sugimoto +1 more 2013-07-02
8434948 Optical fiber connector and optical cable Masahiro Hamada, Kouji Niikura, Daizou Nishioka 2013-05-07
8297850 Optical connector, and method of assembling optical connector Daizo Nishioka, Kazuhito Saito, Yoshikyo Tamekuni, Yukihiro Yokomachi, Tunetaka Ema +2 more 2012-10-30
8292514 Optical connecting member and method of fitting the same Masaki Ohmura, Mitsuaki Tamura, Masahiro Hamada, Mitsuru Kihara, Ryo Koayama 2012-10-23
8254741 Optical cable connecting closure and optical interconnection system Tsuyoshi Imaizumi, Akio Kishi, Shinya Watanabe, Akira Murozono, Tetsuya Oosugi 2012-08-28
8196793 Optical fiber cutting apparatus and optical fiber cutting method Masaki Ohmura, Mitsuaki Tamura 2012-06-12
7927025 Optical fiber branch cable, method of wiring the same, and method of providing the same Katsuyuki Aihara, Keisuke Okada, Masaji Yahagi, Hiroshi Nagai, Hideaki Tajima +2 more 2011-04-19
7731429 Optical connector and method of attaching optical fiber cord to optical connector Daizo Nishioka, Yukihiro Yokomachi, Kenichi Suzuki, Takayasu Yamauchi, Katsuyuki Aihara +1 more 2010-06-08
7717623 Optical connector and optical connector assembling method Kazuhito Saito, Wataru Sakurai, Masaki Ohmura, Yuko Masunaga 2010-05-18
7534051 Optical fiber connector, optical fiber connecting method, and connector converter Daizo Nishioka, Toshifumi Hosoya 2009-05-19
7512307 Method of making optical connector ferrule, die for making optical connector ferrule, optical connector ferrule made by this method, and optical connector and optical wiring system using the same Wataru Sakurai, Hiroshi Katsura, Toshiaki Kakii, Kei Sunaga, Tomohiko Ueda +3 more 2009-03-31
7410303 Method and metal mold for manufacturing optical connector ferrule, optical connector ferrule manufactured by using the method, and optical connector and optical wiring system using the ferrule Wataru Sakurai, Hiroshi Katsura, Toshiaki Kakii, Kei Sunaga, Tomohiko Ueda +3 more 2008-08-12
D571301 Core connector for an optical communication connector Yoshiyuki Nakashima, Yukihiro Yokomachi, Daizo Nishioka 2008-06-17
7341381 Optical connector Naoko Shimoji, Masato Shiino, Masanobu Toyonaga, Kuniaki Terakawa, Hiroyuki Tanase +6 more 2008-03-11
D556688 Optical communication connector Yoshihiro Shogaki, Yukihiro Yokomachi, Daizo Nishioka 2007-12-04
7162126 Optical module having a semiconductor optical device mounted on a bared cladding of an optical fiber Toshio Takagi, Toshifumi Hosoya 2007-01-09