EI

Eiji Ishii

HS Hitachi Automotive Systems: 19 patents #46 of 1,636Top 3%
HI Hitachi: 5 patents #7,555 of 28,497Top 30%
HC Hitachi-Johnson Controls Air Conditioning: 1 patents #77 of 179Top 45%
SC Sumitomo Metal Mining Co.: 1 patents #385 of 736Top 55%
SO Sony: 1 patents #17,262 of 25,231Top 70%
Overall (All Time): #137,424 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 26–28 of 28 patents

Patent #TitleCo-InventorsDate
6724577 Magnetic disc arrangements with aerodynamic latch mechanism Takashi Kouno, Hayato Shimizu 2004-04-20
5386174 Panel for color cathode-ray tube 1995-01-31
4291253 Grid structure for color picture tube Akio Ohkoshi, Akira Nakayama, Shoji Kato, Yoshiyuki Tanaka 1981-09-22