RO

Ryoichi Okada

SC Sumitomo Bakelite Co.: 2 patents #227 of 790Top 30%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
NC Nippon Electric Co.: 1 patents #251 of 792Top 35%
NP Nippon Telegraph And Telephone Public: 1 patents #297 of 842Top 40%
OC Oki Electric Industry Co.: 1 patents #1,459 of 2,807Top 55%
📍 Iruma, JP: #118 of 400 inventorsTop 30%
Overall (All Time): #1,538,738 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8362363 Prepreg with carrier and process for manufacturing same, multi-layered printed wiring board and semiconductor device 2013-01-29
7331502 Method of manufacturing electronic part and electronic part obtained by the method Hitoshi Aoki, Yoshitaka Okugawa, Kensuke Nakamura, Shinichiro Itoh 2008-02-19
4315206 Current supply circuit for telephone exchange Michio Tokunaga, Hideo Mizutani, Koichi Hasegawa, Takaaki Osaki 1982-02-09