Inventor · disambiguated record
Azuma Murakami
Also filed as: MURAKAMI AZUMA
26 granted patents·1 pending application·1,688 citations·filing 1984–2013
98Inventor score
Top patents by PatentIndex Score
27 records- 0195US6362468B1Optical unit for detecting object and coordinate input apparatus using sameSAEILO JAPAN INC·Filed 2000·Granted Mar 26, 2002·176 cites·10 claims
- 0295US5023408AElectronic blackboard and accessories such as writing toolsWACOM CO LTD·Filed 1989·Granted Jun 11, 1991·181 cites·85 claims
- 0394US4786765ACoordinates input systemWACOM CO LTD·Filed 1987·Granted Nov 22, 1988·156 cites·8 claims
- 0492US5134388AElectronic blackboard system marker and eraser thereforWACOM CO LTD·Filed 1991·Granted Jul 28, 1992·93 cites·38 claims
- 0590US4988837APosition detecting deviceWACOM CO LTD·Filed 1990·Granted Jan 29, 1991·181 cites·68 claims
- 0687US4848496ACoordinates input apparatusWACOM CO LTD·Filed 1988·Granted Jul 18, 1989·110 cites·3 claims
- 0785US4709209AMagnetostrictive vibration wave position detecting apparatus with variable threshold detecting valvesWACOM CO LTD·Filed 1986·Granted Nov 24, 1987·45 cites·3 claims
- 0884US5134689ACoordinate input system and input implement used in the systemWACOM CO LTD·Filed 1988·Granted Jul 28, 1992·85 cites·30 claims
- 0984US4999461ACoordinates input apparatusWACOM CO LTD·Filed 1989·Granted Mar 12, 1991·90 cites·48 claims
- 1079US4634973APosition detecting apparatusWACOM CO LTD·Filed 1984·Granted Jan 6, 1987·25 cites·6 claims
- 1175US4956526ADigitizer having flat tablet with magnetic shield plateKABUSHIKIKAISHA WACOM·Filed 1989·Granted Sep 11, 1990·50 cites·14 claims
- 1273US6462733B1Digitizer, assisting apparatus for digitizer, and digitizer systemWACOM CO LTD·Filed 1996·Granted Oct 8, 2002·66 cites·23 claims
- 1372US4948926APosition detecting apparatusWAKOMU KK·Filed 1989·Granted Aug 14, 1990·49 cites·55 claims
- 1472US4697244ACoordinate input device with display and printerWACOM CO LTD·Filed 1985·Granted Sep 29, 1987·46 cites·6 claims
- 1572US4609776ACoordinate input device with displayWACOM CO LTD·Filed 1985·Granted Sep 2, 1986·47 cites·5 claims
- 1671US5130500ADigitizer having flat tablet with magnetic shield plateKABUSHIKIKAISHA WACOM·Filed 1990·Granted Jul 14, 1992·49 cites·27 claims
- 1766US4658373APosition detecting apparatusWACOM CO LTD·Filed 1984·Granted Apr 14, 1987·30 cites·6 claims
- 1865US5148016AOptical coordinate input apparatus and position indicator thereofWACOM CO LTD·Filed 1990·Granted Sep 15, 1992·45 cites·75 claims
- 1964US5466896APosition detectorFiled 1990·Granted Nov 14, 1995·42 cites·16 claims
- 2059US4832144APosition detectorWACOM CO LTD·Filed 1988·Granted May 23, 1989·26 cites·8 claims
- 2157US5706028APosition indicatorWACOM CO LTD·Filed 1995·Granted Jan 6, 1998·33 cites·15 claims
- 2251USRE35329EElectronic blackboard and accessories such as writing toolsWACOM CO LTD·Filed 1993·Granted Sep 17, 1996·19 cites·87 claims
- 2345US5371835AInductively coupled neural networkKABUSHIKIKAISHA WACOM·Filed 1992·Granted Dec 6, 1994·12 cites·9 claims
- 2445US2016062532A1Specified position detection deviceNEWCOM TECHNO INC·Filed 2013·Application pending·0 cites
- 2541US5059749AInput/output apparatus and method thereforWACOM CO LTD·Filed 1990·Granted Oct 22, 1991·13 cites·20 claims
- 2636USRE39475EDigitizer having flat tablet with magnetic shield plateNIPPON KOKAN KK·Filed 1994·Granted Jan 23, 2007·6 cites·40 claims
- 2736US5325398APulse count mode communication systemKABUSHIKIKAISHA WACOM·Filed 1990·Granted Jun 28, 1994·13 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →