Inventor · disambiguated record
Shigeyuki Itoh
Also filed as: ITOH SHIGEYUKI
73 granted patents·8 pending applications·1,972 citations·filing 1984–2023
99Inventor score
Top patents by PatentIndex Score
81 records- 0191US6677989B1Imaging and recording apparatusHITACHI LTD·Filed 2000·Granted Jan 13, 2004·47 cites·1 claims
- 0291US6367696B1IC card processing device, automatic vending device, and selling methodHITACHI LTD·Filed 2000·Granted Apr 9, 2002·77 cites·36 claims
- 0390US5808672AApparatus for removably mounting an electronic camera to a computer systemHITACHI LTD·Filed 1997·Granted Sep 15, 1998·130 cites·25 claims
- 0489US6000607AIC card reader/writer and method of operation thereofHITACHI LTD·Filed 1996·Granted Dec 14, 1999·110 cites·14 claims
- 0589US4677645AAudio signal transmission system having noise reduction meansHITACHI LTD·Filed 1984·Granted Jun 30, 1987·75 cites·8 claims
- 0687US6016956AElectronic money transaction system with a radio transmitter and receiver using a portable telephoneHITACHI LTD·Filed 1997·Granted Jan 25, 2000·74 cites·16 claims
- 0786US6454164B1Pocket-size information transfer apparatus having dual IC card insertion slots and IC card using the sameHITACHI LTD·Filed 1996·Granted Sep 24, 2002·51 cites·14 claims
- 0883US5539535APortable electronic still camera recording optical images of subjects in a memory which facilitates memory access from an external requestHITACHI LTD·Filed 1994·Granted Jul 23, 1996·38 cites·22 claims
- 0980US8410316B2Iminopropene compound and use thereofITOH SHIGEYUKI·Filed 2011·Granted Apr 2, 2013·2 cites·7 claims
- 1080US6679423B2Electronic-money rewarding system for lost and found IC cardHITACHI LTD·Filed 2001·Granted Jan 20, 2004·19 cites·15 claims
- 1179US4825305AApparatus for recording and reproducing digital using dynamic range compressionHITACHI LTD·Filed 1987·Granted Apr 25, 1989·27 cites·9 claims
- 1277US5838059AMultichip IC card and IC card system using itHITACHI LTD·Filed 1996·Granted Nov 17, 1998·56 cites·15 claims
- 1376US7346579B2Electronic purse application system and method thereofHITACHI LTD·Filed 2001·Granted Mar 18, 2008·9 cites·18 claims
- 1475US5987438AElectronic wallet systemHITACHI LTD·Filed 1996·Granted Nov 16, 1999·194 cites·28 claims
- 1574US4769722AApparatus for recording and reproducing a video signal and for recording and reproducing a PCM audio signal on forward and reverse tape travelling directionsHITACHI LTD·Filed 1985·Granted Sep 6, 1988·20 cites·4 claims
- 1672US6976625B2Electronic purseHITACHI VIDEO & INF SYST·Filed 2004·Granted Dec 20, 2005·3 cites·30 claims
- 1772US6938165B2Program writable IC card and method thereofHITACHI VIDEO & INF SYST·Filed 2001·Granted Aug 30, 2005·4 cites·14 claims
- 1872US6382505B1Electronic purseHITACHI LTD·Filed 2000·Granted May 7, 2002·3 cites·14 claims
- 1972US6230971B1Transaction-oriented electronic accommodation systemHITACHI LTD·Filed 2000·Granted May 15, 2001·34 cites·21 claims
- 2072US5945652AElectronic wallet and method for operating the sameHITACHI LTD·Filed 1997·Granted Aug 31, 1999·137 cites·29 claims
- 2171US6081350AImaging and recording apparatusHITACHI LTD·Filed 1998·Granted Jun 27, 2000·24 cites·21 claims
- 2270US6345263B1Electronic purse application system and method thereofHITACHI LTD·Filed 1997·Granted Feb 5, 2002·112 cites·8 claims
- 2369US8987170B2Succinimide compoundSUMITOMO CHEMICAL CO·Filed 2014·Granted Mar 24, 2015·0 cites·3 claims
- 2469US6490010B1AFC circuit, carrier recovery circuit and receiver device capable of regenerating a carrier reliably even at the time of low C/N ratioFiled 1998·Granted Dec 3, 2002·39 cites·10 claims
- 2568US5748238AVideo cameraHITACHI LTD·Filed 1996·Granted May 5, 1998·30 cites·8 claims
- 2667US6167467AInformation reception and recording circuitHITACHI LTD·Filed 1999·Granted Dec 26, 2000·23 cites·17 claims
- 2766US2014031376A1Iminopropene compound and use thereofSUMITOMO CHEMICAL CO·Filed 2013·Application pending·0 cites
- 2865US8084644B2Iminopropene compound and use thereofITOH SHIGEYUKI·Filed 2007·Granted Dec 27, 2011·0 cites·9 claims
- 2964US8618329B2Iminopropene compound and use thereofSUMITOMO CHEMICAL CO·Filed 2013·Granted Dec 31, 2013·0 cites·8 claims
- 3064US6359699B1IC card processing system and processing methodHITACHI LTD·Filed 1998·Granted Mar 19, 2002·41 cites·23 claims
- 3163US8318981B2Imidate compound and use thereof for pest controlKAMIYAMA HIDEO·Filed 2008·Granted Nov 27, 2012·1 cites·24 claims
- 3263US5992738AIC card automated transaction terminal and IC card used thereinHITACHI LTD·Filed 1996·Granted Nov 30, 1999·110 cites·29 claims
- 3363US4992891ADual record/read head video recording and playback apparatus with fade-in functionHITACHI LTD·Filed 1989·Granted Feb 12, 1991·13 cites·3 claims
- 3462US2003163376A1Point management systemFiled 2003·Application pending·0 cites
- 3561US6827258B2Electronic purseHITACHI LTD·Filed 2002·Granted Dec 7, 2004·0 cites·2 claims
- 3660US2009287606A1System and terminal device for electronic money transaction on information and method thereofHITACHI LTD·Filed 2009·Application pending·0 cites
- 3759US12428248B2Sheet processing apparatus, image forming apparatus, and image forming systemTANAKA YUSUKE·Filed 2023·Granted Sep 30, 2025·0 cites·15 claims
- 3857US7304669B2Imaging and recording apparatusHITACHI LTD·Filed 2003·Granted Dec 4, 2007·2 cites·8 claims
- 3957US6282293B1System and method for charging fee for video informationHITACHI LTD·Filed 1995·Granted Aug 28, 2001·27 cites·73 claims
- 4057US5790274AImaging and recording apparatusHITACHI LTD·Filed 1997·Granted Aug 4, 1998·12 cites·11 claims
- 4156US5793517AImaging and recording apparatusHITACHI LTD·Filed 1997·Granted Aug 11, 1998·11 cites·8 claims
- 4255US5664220AInformation transmission/reception system for transmitting information to requesters, where it is recorded, in response to a plurality of requestsHITACHI LTD·Filed 1994·Granted Sep 2, 1997·12 cites·16 claims
- 4355US5565919AVideo camera/VTR and camera station with opto-electronic link between camera/VTR and camera stationHITACHI LTD·Filed 1993·Granted Oct 15, 1996·13 cites·12 claims
- 4455US5432650AMagnetic tape recording/reproducing apparatus having automatic mode controlHITACHI LTD·Filed 1992·Granted Jul 11, 1995·11 cites·1 claims
- 4554US6902106B2Electronic money transaction system with a radio transmitter and receiver using a portable telephoneHITACHI LTD·Filed 2002·Granted Jun 7, 2005·0 cites·16 claims
- 4653US8314858B2Imaging and recording apparatus controlling erasure of data in flash type memoryAIZAWA IWAO·Filed 2007·Granted Nov 20, 2012·0 cites·1 claims
- 4753US5801847AImaging and recording apparatusHITACHI LTD·Filed 1997·Granted Sep 1, 1998·10 cites·24 claims
- 4852US5938741AInformation transmission/reception system for transmitting information to requesters, where it is recorded, in response to a plurality of requestsHITACHI LTD·Filed 1997·Granted Aug 17, 1999·12 cites·31 claims
- 4952US5699173APortable electronic still camera recording optical images of subjects in a memory which facilitates memory access from an external requestHITACHI LTD·Filed 1995·Granted Dec 16, 1997·9 cites·46 claims
- 5051US6425522B1IC card information processing system, and apparatus and cards for the sameHITACHI LTD·Filed 1999·Granted Jul 30, 2002·34 cites·32 claims
Showing the top 50 of 81 patent records by PatentIndex Score.
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