HT

Hiroyasu Toyooka

SC Sei Optifrontier Co.: 9 patents #7 of 82Top 9%
Sumitomo Electric Industries: 5 patents #5,365 of 21,551Top 25%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #380,957 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10101551 Multi-core/single-core conversion module and multi-core/single-core conversion apparatus Junji Fukui, Kenichiro Ohtsuka, Yuji Suzuki, Takayuki Suzuki 2018-10-16
9395492 Optical fiber cutter Masahiro Hasegawa, Hiroshi Nakamura 2016-07-19
D759138 Optical fiber fusion splicer Ryuichiro Sato, Kensuke Ito 2016-06-14
9235005 Method of fusion-splicing optical fibers and fusion splicer Ryuichiro Sato, Hiroshi Takayanagi 2016-01-12
D746885 Optical fiber fusion splicer Ryuichiro Sato, Kensuke Ito 2016-01-05
8861920 Optical fiber holder and method for holding coated optical fiber Ryuichiro Sato, Toshihiko Homma, Kiyotaka Murashima 2014-10-14
D709286 Carrying case for an optical fiber fusion splicer Hiroshi Takayanagi, Teruaki Nishida, Hisao Yui 2014-07-22
8641300 Spliced optical cable assembly Kiyotaka Murashima, Toshihiko Homma, Ryuichiro Sato, Keitaro Iwai 2014-02-04
D694602 Optical fiber cutter Masahiro Hasegawa, Hiroshi Nakamura 2013-12-03
D692739 Pushing part for an optical fiber cutter Masahiro Hasegawa, Hiroshi Nakamura 2013-11-05
D692740 Cutter blade assembly for an optical fiber cutter Masahiro Hasegawa, Hiroshi Nakamura 2013-11-05
6497516 Guide pin for optical fiber connectors and optical fiber connector plug Koji Kashihara, Atsushi Takai, Atsushi Miura 2002-12-24
6123463 Optical fiber connector with non-PC-coupling Koji Kashihara, Yutaka Kotohda 2000-09-26