Inventor
YAMANAMI TSUGUYA
JP20 patents
⚠️ This page may combine multiple inventors who share the name “YAMANAMI TSUGUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WACOM CO LTD
16 patentsUS5028745AJul 2, 1991
Position detecting apparatus
WACOM CO LTD157 citations98
US5023408AJun 11, 1991
Electronic blackboard and accessories such as writing tools
WACOM CO LTD181 citations98
US4878553ANov 7, 1989
Position detecting apparatus
WACOM CO LTD237 citations98
US4786765ANov 22, 1988
Coordinates input system
WACOM CO LTD156 citations98
US4988837AJan 29, 1991
Position detecting device
WACOM CO LTD181 citations96
US4902858AFeb 20, 1990
Coordinates input apparatus
WACOM CO LTD105 citations96
US4704501ANov 3, 1987
Position detecting device
WACOM CO LTD74 citations96
US5134388AJul 28, 1992
Electronic blackboard system marker and eraser therefor
WACOM CO LTD93 citations95
US5134689AJul 28, 1992
Coordinate input system and input implement used in the system
WACOM CO LTD85 citations95
USRE35329ESep 17, 1996
Electronic blackboard and accessories such as writing tools
WACOM CO LTD19 citations92
US4697244ASep 29, 1987
Coordinate input device with display and printer
WACOM CO LTD46 citations92
US4609776ASep 2, 1986
Coordinate input device with display
WACOM CO LTD47 citations92
US4617515AOct 14, 1986
Position detecting apparatus
WACOM CO LTD20 citations82
US4845478AJul 4, 1989
Coordinate input device with display
WACOM CO LTD9 citations74
US4678870AJul 7, 1987
Position detecting device
WACOM CO LTD16 citations74
US4631356ADec 23, 1986
Coordinate input device with display
WACOM CO LTD19 citations74