TT

Tsutomu Tojyo

HI Hitachi: 5 patents #7,555 of 28,497Top 30%
HC Hitachi Device Engineering Co.: 4 patents #116 of 514Top 25%
HC Hitachi Electronic Devices Co.: 2 patents #32 of 92Top 35%
OC Olympus Optical Co.: 2 patents #1,178 of 2,334Top 55%
HC Hitachi Engineering Co.: 1 patents #187 of 572Top 35%
Overall (All Time): #759,567 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
6353281 Cathode ray tube Mitsuhiro Sugiyama, Masahiro Ito, Masayoshi Misono, Hiroyuki Tamura 2002-03-05
6337534 Color cathode ray tube with coma reduced Masayoshi Misono, Hiroyuki Tamura 2002-01-08
6232711 Color cathode ray tube Mitsuhiro Sugiyama, Masahiro Ito, Masayoshi Misono, Hiroyuki Tamura 2001-05-15
6157122 Color cathode ray tube with coma reduced Masayoshi Misono, Hiroyuki Tamura 2000-12-05
5912530 Color cathode ray tube with coma reduced Masayoshi Misono, Hiroyuki Tamura 1999-06-15
4283123 Microscope objective 1981-08-11
4208099 Microscope objective lens system 1980-06-17