Inventor · disambiguated record
Takao Tagawa
Also filed as: TAGAWA TAKAO
30 granted patents·1,762 citations·filing 1975–1997
98Inventor score
Top patents by PatentIndex Score
30 records- 0199US5392058ADisplay-integrated type tablet deviceSHARP KK·Filed 1992·Granted Feb 21, 1995·217 cites·30 claims
- 0294US5534892ADisplay-integrated type tablet device having and idle time in one display image frame to detect coordinates and having different electrode densitiesSHARP KK·Filed 1994·Granted Jul 9, 1996·236 cites·5 claims
- 0391US5155615AMiniature display device for use in a miniature electronic apparatusSHARP KK·Filed 1989·Granted Oct 13, 1992·68 cites·13 claims
- 0490US5854881ACoordinate detection device capable of detecting coordinates using display panel provided specially for displaySHARP KK·Filed 1995·Granted Dec 29, 1998·177 cites·12 claims
- 0589US5677744AReflection type input/output liquid crystal displaySHARP KK·Filed 1994·Granted Oct 14, 1997·149 cites·8 claims
- 0689US5331333ADisplay apparatusSHARP KK·Filed 1992·Granted Jul 19, 1994·73 cites·6 claims
- 0787US5430462AImage input device-integrated type display deviceSHARP KK·Filed 1993·Granted Jul 4, 1995·84 cites·14 claims
- 0882US5738429APortable projection display apparatusSHARP KK·Filed 1995·Granted Apr 14, 1998·70 cites·37 claims
- 0982US4287525AMulti-pin record electrode assembly and driving method of the sameSHARP KK·Filed 1978·Granted Sep 1, 1981·27 cites·9 claims
- 1082US4030107AElectrographic recording devices employing electrostatic induction electrodesSHARP KK·Filed 1975·Granted Jun 14, 1977·21 cites·7 claims
- 1177US5581274ADisplay-integrated type tablet deviceSHARP KK·Filed 1994·Granted Dec 3, 1996·73 cites·27 claims
- 1275US5357266ADisplay-integrated type tablet deviceTAGAWA TAKAO·Filed 1992·Granted Oct 18, 1994·66 cites·18 claims
- 1374US5798756ACoordinate detection device capable of obviating the need of forming closed loop in electrodes thereofSHARP KK·Filed 1995·Granted Aug 25, 1998·71 cites·15 claims
- 1473US4563056AOptical system for laser printerSHARP KK·Filed 1982·Granted Jan 7, 1986·22 cites·8 claims
- 1569US5825345ADisplay-integrated type tablet deviceSHARP KK·Filed 1996·Granted Oct 20, 1998·60 cites·21 claims
- 1668US5854448ACoordinate input device used for inputting characters and drawings into a personal computer/word processorSHARP KK·Filed 1996·Granted Dec 29, 1998·57 cites·15 claims
- 1768US5491706ADisplay-integrated type tablet device capable of detecting correct coordinates at a tip end of a detection pen by detecting external noiseSHARP KK·Filed 1994·Granted Feb 13, 1996·55 cites·5 claims
- 1867US5410329ADisplay-integrated type tablet deviceSHARP KK·Filed 1993·Granted Apr 25, 1995·43 cites·29 claims
- 1964US6091030AMethod of detecting a position indicated by an electronic pen in a display-integrated panel for multilevel image displaySHARP KK·Filed 1997·Granted Jul 18, 2000·51 cites·5 claims
- 2062US4855818ADocument reading apparatus with color filterSHARP KK·Filed 1988·Granted Aug 8, 1989·14 cites·1 claims
- 2161US5631666ADisplay-integrated type tablet deviceSHARP KK·Filed 1995·Granted May 20, 1997·37 cites·6 claims
- 2255US5442373ADisplay-integrated type tablet deviceSHARP KK·Filed 1993·Granted Aug 15, 1995·23 cites·1 claims
- 2353US4636063AAutomatic exposure adjusting deviceSHARP KK·Filed 1985·Granted Jan 13, 1987·9 cites·7 claims
- 2452US4669861AElectrophotographic recording apparatusSHARP KK·Filed 1985·Granted Jun 2, 1987·9 cites·10 claims
- 2549US4435733AFlying spot scanner for laser printerSHARP KK·Filed 1982·Granted Mar 6, 1984·10 cites·11 claims
- 2648US5592197ADisplay-integrated type tablet deviceSHARP KK·Filed 1994·Granted Jan 7, 1997·17 cites·6 claims
- 2745US4996392ASuperconductor magnetic image detection deviceSHARP KK·Filed 1989·Granted Feb 26, 1991·8 cites·22 claims
- 2841US5534886ADisplay-integrated type tablet deviceSHARP KK·Filed 1995·Granted Jul 9, 1996·11 cites·5 claims
- 2938US4835571ACorona discharging unit for use in copying machineSHARP KK·Filed 1988·Granted May 30, 1989·4 cites·8 claims
- 3030US4951153AImage recording device with optical switch panel over photsensitive bodySHARP KK·Filed 1989·Granted Aug 21, 1990·0 cites·11 claims
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