Inventor
KOYANAGI KATUBUMI
10 patents
⚠️ This page may combine multiple inventors who share the name “KOYANAGI KATUBUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP KK
9 patentsUS4229080AOct 21, 1980
Additional electrode of electrochromic display and refreshing method for the same
SHARP KK33 citations92
US4535329AAug 13, 1985
Constant current/constant voltage drive for an electrochromic display cell
SHARP KK13 citations73
US4300138ANov 10, 1981
Electric memory detector in an ECD driver
SHARP KK11 citations73
US4295138AOct 13, 1981
Combined constant potential and constant voltage driving technique for electrochromic displays
SHARP KK7 citations73
US4247855AJan 27, 1981
Segmented bargraph display by an electrochromic display device
SHARP KK12 citations73
US4739431AApr 19, 1988
Thin-film magnetic head
SHARP KK14 citations71
US4430182AFeb 7, 1984
Manufacture of display electrode layers in electrochromic display devices
SHARP KK6 citations62
US4420749ADec 13, 1983
Charge transfer type electrochromic display devices
SHARP KK3 citations62
US4364040ADec 14, 1982
Electrochromic display driver with faculties of stabilizing coloration contrast and insuring uniform bleaching condition
SHARP KK2 citations62