Inventor
MURAKAMI AZUMA
JP26 patents
⚠️ This page may combine multiple inventors who share the name “MURAKAMI AZUMA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WACOM CO LTD
18 patentsUS5023408AJun 11, 1991
Electronic blackboard and accessories such as writing tools
WACOM CO LTD181 citations98
US4786765ANov 22, 1988
Coordinates input system
WACOM CO LTD156 citations98
US6462733B1Oct 8, 2002
Digitizer, assisting apparatus for digitizer, and digitizer system
WACOM CO LTD66 citations96
US4988837AJan 29, 1991
Position detecting device
WACOM CO LTD181 citations96
US5134689AJul 28, 1992
Coordinate input system and input implement used in the system
WACOM CO LTD85 citations95
US5134388AJul 28, 1992
Electronic blackboard system marker and eraser therefor
WACOM CO LTD93 citations95
US5148016ASep 15, 1992
Optical coordinate input apparatus and position indicator thereof
WACOM CO LTD45 citations93
US4709209ANov 24, 1987
Magnetostrictive vibration wave position detecting apparatus with variable threshold detecting valves
WACOM CO LTD45 citations93
US4658373AApr 14, 1987
Position detecting apparatus
WACOM CO LTD30 citations93
US4634973AJan 6, 1987
Position detecting apparatus
WACOM CO LTD25 citations93
US5706028AJan 6, 1998
Position indicator
WACOM CO LTD33 citations92
USRE35329ESep 17, 1996
Electronic blackboard and accessories such as writing tools
WACOM CO LTD19 citations92
US4999461AMar 12, 1991
Coordinates input apparatus
WACOM CO LTD90 citations92
US4848496AJul 18, 1989
Coordinates input apparatus
WACOM CO LTD110 citations92
US4832144AMay 23, 1989
Position detector
WACOM CO LTD26 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
US5059749AOct 22, 1991
Input/output apparatus and method therefor
WACOM CO LTD13 citations72
KABUSHIKIKAISHA WACOM
4 patentsUS5130500AJul 14, 1992
Digitizer having flat tablet with magnetic shield plate
KABUSHIKIKAISHA WACOM49 citations96
US4956526ASep 11, 1990
Digitizer having flat tablet with magnetic shield plate
KABUSHIKIKAISHA WACOM50 citations92
US5371835ADec 6, 1994
Inductively coupled neural network
KABUSHIKIKAISHA WACOM12 citations71
US5325398AJun 28, 1994
Pulse count mode communication system
KABUSHIKIKAISHA WACOM13 citations68