Inventor
TAGAWA TAKAO
JP30 patents
⚠️ This page may combine multiple inventors who share the name “TAGAWA TAKAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP KK
29 patentsUS5854881ADec 29, 1998
Coordinate detection device capable of detecting coordinates using display panel provided specially for display
SHARP KK177 citations99
US5534892AJul 9, 1996
Display-integrated type tablet device having and idle time in one display image frame to detect coordinates and having different electrode densities
SHARP KK236 citations99
US5392058AFeb 21, 1995
Display-integrated type tablet device
SHARP KK217 citations99
US5677744AOct 14, 1997
Reflection type input/output liquid crystal display
SHARP KK149 citations97
US5798756AAug 25, 1998
Coordinate detection device capable of obviating the need of forming closed loop in electrodes thereof
SHARP KK71 citations96
US5738429AApr 14, 1998
Portable projection display apparatus
SHARP KK70 citations96
US5581274ADec 3, 1996
Display-integrated type tablet device
SHARP KK73 citations96
US5430462AJul 4, 1995
Image input device-integrated type display device
SHARP KK84 citations96
US5155615AOct 13, 1992
Miniature display device for use in a miniature electronic apparatus
SHARP KK68 citations96
US5825345AOct 20, 1998
Display-integrated type tablet device
SHARP KK60 citations95
US5331333AJul 19, 1994
Display apparatus
SHARP KK73 citations95
US5854448ADec 29, 1998
Coordinate input device used for inputting characters and drawings into a personal computer/word processor
SHARP KK57 citations94
US5631666AMay 20, 1997
Display-integrated type tablet device
SHARP KK37 citations92
US5442373AAug 15, 1995
Display-integrated type tablet device
SHARP KK23 citations92
US5410329AApr 25, 1995
Display-integrated type tablet device
SHARP KK43 citations92
US6091030AJul 18, 2000
Method of detecting a position indicated by an electronic pen in a display-integrated panel for multilevel image display
SHARP KK51 citations90
US5491706AFeb 13, 1996
Display-integrated type tablet device capable of detecting correct coordinates at a tip end of a detection pen by detecting external noise
SHARP KK55 citations90
US5592197AJan 7, 1997
Display-integrated type tablet device
SHARP KK17 citations82
US4287525ASep 1, 1981
Multi-pin record electrode assembly and driving method of the same
SHARP KK27 citations82
US4030107AJun 14, 1977
Electrographic recording devices employing electrostatic induction electrodes
SHARP KK21 citations82
US4563056AJan 7, 1986
Optical system for laser printer
SHARP KK22 citations81
US5534886AJul 9, 1996
Display-integrated type tablet device
SHARP KK11 citations74
US4996392AFeb 26, 1991
Superconductor magnetic image detection device
SHARP KK8 citations74
US4855818AAug 8, 1989
Document reading apparatus with color filter
SHARP KK14 citations74
US4636063AJan 13, 1987
Automatic exposure adjusting device
SHARP KK9 citations73
US4435733AMar 6, 1984
Flying spot scanner for laser printer
SHARP KK10 citations73
US4669861AJun 2, 1987
Electrophotographic recording apparatus
SHARP KK9 citations72
US4835571AMay 30, 1989
Corona discharging unit for use in copying machine
SHARP KK4 citations61
US4951153AAug 21, 1990
Image recording device with optical switch panel over photsensitive body
SHARP KK0 citations52