KO

Kenichiro Otsuka

NS Nippon Steel: 5 patents #12 of 316Top 4%
Sumitomo Electric Industries: 2 patents #88 of 538Top 20%
SL Sumitomo Electric Lightwave: 1 patents #1 of 9Top 15%
SC Sumitomo Electric Optifrontier Co.: 1 patents #10 of 28Top 40%
Overall (2025): #12,143 of 469,880Top 3%
7
Patents 2025

Issued Patents 2025

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
12428689 Steel sheet and method for manufacturing same Masahiro Kubo, Hiroyuki Kawata, Masahiro Saito, Masafumi Azuma 2025-09-30
12399336 Optical fiber cable with partitioned case for optical fiber cable Takayuki YOKOCHI, Takayuki Shimazu 2025-08-26
12344911 High-strength steel sheet and method for manufacturing same Masafumi Azuma, Eisaku Sakurada, Genki Abukawa, Takeshi Toyoda 2025-07-01
12248185 Optical connection structure, optical connector, and optical connecting method Masaki Omura, Motoyoshi KIMURA, Takayuki YOKOCHI, Shunichi Watanabe, Junji Fukui +3 more 2025-03-11
12221661 Steel sheet and method for producing same Masahiro Kubo, Hiroyuki Kawata, Masafumi Azuma 2025-02-11
12209300 Automobile undercarriage part Masafumi Azuma, Yoichiro Mori, Shinji Kodama, Masahiro Matsuba 2025-01-28
12194806 Suspension arm Masafumi Azuma, Koichi Hamada, Ryo Tabata, Ryo URUSHIBATA, Yuki Kitahara 2025-01-14