Inventor · disambiguated record
Tetsuya Kagawa
Also filed as: KAGAWA TETSUYA
45 granted patents·6 pending applications·497 citations·filing 1986–2025
98Inventor score
Top patents by PatentIndex Score
51 records- 0196US11657953B2Semiconductor device and semiconductor moduleROHM CO LTD·Filed 2021·Granted May 23, 2023·3 cites·22 claims
- 0296US11011297B2Semiconductor device and semiconductor moduleROHM CO LTD·Filed 2020·Granted May 18, 2021·4 cites·23 claims
- 0396US9697948B2Semiconductor device and semiconductor moduleROHM CO LTD·Filed 2014·Granted Jul 4, 2017·24 cites·20 claims
- 0490US2025342999A1Semiconductor device and semiconductor moduleROHM CO LTD·Filed 2025·Application pending·0 cites
- 0589US8233826B2Developing apparatus and image forming apparatus provided with the sameSAITO KAZUHIRO·Filed 2010·Granted Jul 31, 2012·6 cites·8 claims
- 0688US7228090B2Image forming apparatus with a removable process unit capable of securing rotation transmission accuracy without stressing a holding portion despite shaft misalignmentKONICA MINOLTA BUSINESS TECH·Filed 2004·Granted Jun 5, 2007·33 cites·17 claims
- 0787US7764916B2Fixing device and image forming apparatusKONICA MINOLTA BUSINESS TECH·Filed 2007·Granted Jul 27, 2010·12 cites·16 claims
- 0886US10755614B2Image projection apparatus, its control method, and storage mediumCANON KK·Filed 2019·Granted Aug 25, 2020·3 cites·11 claims
- 0983US8170451B2Developing apparatus including guide for preventing packing and leaking of developer and image forming apparatus provided with the sameMURAUCHI JUNJI·Filed 2010·Granted May 1, 2012·4 cites·8 claims
- 1081US12387868B2Semiconductor device and semiconductor moduleROHM CO LTD·Filed 2023·Granted Aug 12, 2025·0 cites·11 claims
- 1179US8600278B2Fixing device and image formation apparatusMURAKAMI MASANORI·Filed 2012·Granted Dec 3, 2013·2 cites·4 claims
- 1278US7231171B2Image copying apparatus and image copying methodKONICA MINOLTA BUSINESS TECH·Filed 2005·Granted Jun 12, 2007·7 cites·12 claims
- 1378US5597311ASystem for making examination papers and having an automatic marking functionRICOH KK·Filed 1994·Granted Jan 28, 1997·56 cites·10 claims
- 1475US5909066ALinear motor apparatus employing linear motor as drive sourceMINOLTA CO LTD·Filed 1996·Granted Jun 1, 1999·40 cites·22 claims
- 1575US5775918ASystem for making examination papers and having an automatic marking functionRICOH KK·Filed 1996·Granted Jul 7, 1998·65 cites·4 claims
- 1673US8233827B2Developing apparatus and image forming apparatus provided with the sameSAITO KAZUHIRO·Filed 2010·Granted Jul 31, 2012·2 cites·14 claims
- 1772US8219007B2Developing apparatus and image forming apparatus provided with the sameMURAUCHI JUNJI·Filed 2010·Granted Jul 10, 2012·2 cites·7 claims
- 1870US8190064B2Developing apparatus with agitating portion and image forming apparatus provided with the sameTSUTSUI CHIKARA·Filed 2010·Granted May 29, 2012·2 cites·8 claims
- 1967US5452474AExternally attached handset of an end terminal used for mobile communication systemsRICOH KK·Filed 1994·Granted Sep 19, 1995·26 cites·17 claims
- 2066US4982242AColor image forming apparatusMITA INDUSTRIAL CO LTD·Filed 1989·Granted Jan 1, 1991·14 cites·11 claims
- 2165US7403311B2Network facsimile deviceRICOH KK·Filed 2001·Granted Jul 22, 2008·6 cites·10 claims
- 2265US7290177B2Network communication terminal apparatus with capability of outputting error occurrence indicationRICOH KK·Filed 2004·Granted Oct 30, 2007·6 cites·12 claims
- 2364US8224212B2Developing apparatus and image forming apparatus provided with the sameMURAUCHI JUNJI·Filed 2010·Granted Jul 17, 2012·1 cites·14 claims
- 2463US7289245B2Color facsimile device capable of transmitting color image information represented in appropriate color space through multiple communication channelsRICOH KK·Filed 2001·Granted Oct 30, 2007·5 cites·10 claims
- 2563US7187463B2Method of determining whether registration information to be erased includes information reserved for use in a communication jobRICOH KK·Filed 2003·Granted Mar 6, 2007·5 cites·24 claims
- 2663US5608545AFacsimile device and communication control method thereofRICOH KK·Filed 1995·Granted Mar 4, 1997·38 cites·8 claims
- 2762US8165513B2Fixing device and image forming apparatusKAGAWA TETSUYA·Filed 2010·Granted Apr 24, 2012·1 cites·20 claims
- 2862US5398101AImage forming apparatus capable of copying images on various copy itemsMITA INDUSTRIAL CO LTD·Filed 1994·Granted Mar 14, 1995·13 cites·9 claims
- 2959US5995239AFacsimile apparatus, facsimile method, and facsimile system including a modem for determining a data rateRICOH KK·Filed 1997·Granted Nov 30, 1999·25 cites·18 claims
- 3057US2017287624A1Semiconductor device and semiconductor moduleROHM CO LTD·Filed 2017·Application pending·0 cites
- 3155US7616350B2Data communication apparatus and methodRICOH KK·Filed 2002·Granted Nov 10, 2009·2 cites·19 claims
- 3254US6574012B1Communication terminal apparatus of determining a communication speed for line conditionRICOH KK·Filed 1999·Granted Jun 3, 2003·17 cites·21 claims
- 3354US5418618ATone processing method for forming a halftone imageMITA INDUSTRIAL CO LTD·Filed 1992·Granted May 23, 1995·14 cites·12 claims
- 3453US8185031B2Fixing device and image formation apparatusMURAKAMI MASANORI·Filed 2009·Granted May 22, 2012·0 cites·3 claims
- 3550US4724464AArea setting deviceMITA INDUSTRIAL CO LTD·Filed 1986·Granted Feb 9, 1988·9 cites·5 claims
- 3649US6222645B1Facsimile apparatus and communication method thereforRICOH KK·Filed 1997·Granted Apr 24, 2001·13 cites·52 claims
- 3748US5422740AImage forming apparatus which effects output gray level correctionMITA INDUSTRIAL CO LTD·Filed 1993·Granted Jun 6, 1995·11 cites·4 claims
- 3848US2005039011A1Internet facsimile apparatusFiled 2004·Application pending·0 cites
- 3946US6160637AFacsimile apparatus and methodRICOH KK·Filed 1998·Granted Dec 12, 2000·11 cites·24 claims
- 4043US10371937B2Projection display apapratusCANON KK·Filed 2018·Granted Aug 6, 2019·0 cites·9 claims
- 4143US8644750B2Fixing device including resistor layers having volume resistivity and image forming apparatus having fixing deviceKAGAWA TETSUYA·Filed 2011·Granted Feb 4, 2014·0 cites·15 claims
- 4243US7991316B2Fixing deviceKONICA MINOLTA BUSINESS TECH·Filed 2007·Granted Aug 2, 2011·0 cites·20 claims
- 4343US5097187AMotor control apparatus for controlling motor for selectively driving two mechanismsRICOH KK·Filed 1991·Granted Mar 17, 1992·10 cites·11 claims
- 4443US2002044302A1Method and apparatus for facsimile communications capable of using functions of other facsimile terminalsFiled 2001·Application pending·0 cites
- 4541US8918024B2Development deviceSAITO KAZUHIRO·Filed 2012·Granted Dec 23, 2014·0 cites·15 claims
- 4640US2017241953A1Magnetic flaw detection device and magnetic flaw detection methodKONICA MINOLTA INC·Filed 2015·Application pending·0 cites
- 4740US2006028693A1Fax machineKAGAWA TETSUYA·Filed 2005·Application pending·0 cites
- 4839US9170535B2Fixing device and image forming apparatusKANOU HIROTAKA·Filed 2011·Granted Oct 27, 2015·0 cites·9 claims
- 4935US5499361ADensity processing methodMITA INDUSTRIAL CO LTD·Filed 1993·Granted Mar 12, 1996·3 cites·18 claims
- 5033US8233825B2Developing apparatus and image forming apparatus provided with the sameTSUTSUI CHIKARA·Filed 2010·Granted Jul 31, 2012·0 cites·8 claims
Showing the top 50 of 51 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →