RI

Ro Ishikawa

NC Nippon Electric Co.: 1 patents #251 of 792Top 35%
Overall (All Time): #2,370,428 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4265513 Light switch Shigeo Matsushita, Kazuhisa Kaede, Ikuo Mito, Shigetoki Sugimoto 1981-05-05
4213677 Light coupling and branching device using light focusing transmission body Shigetoki Sugimoto, Shigeo Matsushita 1980-07-22