KS

Katsuo Sakai

Ricoh Company: 32 patents #573 of 9,818Top 6%
HE Hitachi Kokusai Electric: 2 patents #354 of 843Top 45%
SO Sony: 2 patents #12,963 of 25,231Top 55%
RE Renesas Electronics: 2 patents #1,855 of 4,529Top 45%
SC Sanyo Electric Co.: 2 patents #2,557 of 6,347Top 45%
TL Tokyo Electron Limited: 2 patents #2,602 of 5,567Top 50%
UL Ulvac: 2 patents #199 of 680Top 30%
Canon: 2 patents #12,681 of 19,416Top 70%
KC Kanto Denka Kogyo Co.: 1 patents #61 of 140Top 45%
Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%
SK Showa Denko K.K.: 1 patents #940 of 1,736Top 55%
AA Array Printers Ab: 1 patents #24 of 49Top 50%
FL Fujitsu Semiconductor Limited: 1 patents #612 of 1,301Top 50%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
Overall (All Time): #99,228 of 4,157,543Top 3%
35
Patents All Time

Issued Patents All Time

Showing 26–35 of 35 patents

Patent #TitleCo-InventorsDate
4615607 Dual-color copier Nobuyuki Yanagawa, Tadao Koike, Toyoji Ishikawa, Hideya Furuta 1986-10-07
4544935 Recording apparatus 1985-10-01
4521502 Color recording method Hiromi Demizu 1985-06-04
4407917 Information image synthesizing and copying method 1983-10-04
4384033 Process of synthesizing and recording images 1983-05-17
4335194 Two color electrophotographic process and material 1982-06-15
4310610 Two color electrostatographic process 1982-01-12
4281051 Three color electrostatographic process 1981-07-28
4250239 Color electrostatographic process and material 1981-02-10
4189224 Two color electrostatic copying machine 1980-02-19