HI

Hirohumi Izumi

HC Hitachi Chemical Company: 3 patents #513 of 1,946Top 30%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
📍 Kitaibaraki, JP: #55 of 145 inventorsTop 40%
Overall (All Time): #1,660,090 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5084225 Method for making a cathode ray tube Toshimasa Ishigaki, Yasuhiko Uehara, Fusaji Shoji, Ryoichi Sudo, Etsuji Iwami 1992-01-28
4893055 Process for using unsaturated polyester resin composition for treating cathode-ray tubes and cathode tubes obtained thereby Tadashi Fuzii, Etsuji Iwami, Kazuyuki Tanaka 1990-01-09
4866338 Unsaturated polyester resin composition for cathode ray tube and its use Toshimasa Ishigaki, Yasuhiko Uehara, Fusaji Shoji, Ryoichi Sudo, Etsuji Iwami 1989-09-12