Inventor · disambiguated record
Takeshi Shibuya
Also filed as: SHIBUYA TAKESHI
55 granted patents·3 pending applications·890 citations·filing 1990–2020
98Inventor score
Top patents by PatentIndex Score
58 records- 0199US6579826B2Reversible thermosensitive recording medium and image forming and erasing method using the recording mediumRICOH KK·Filed 2001·Granted Jun 17, 2003·122 cites·26 claims
- 0295US7974544B2Electrophotography apparatus having edge detection of toner patch and exposure controlRICOH CO LTD·Filed 2009·Granted Jul 5, 2011·21 cites·7 claims
- 0394US7333259B2Multicolor display elementRICOH KK·Filed 2006·Granted Feb 19, 2008·20 cites·12 claims
- 0493US8252233B2Automatic analyzer and sample-processing systemTOKIEDA HITOSHI·Filed 2008·Granted Aug 28, 2012·19 cites·8 claims
- 0592US10094846B2Automatic analyzer and sample-processing systemHITACHI HIGH TECH CORP·Filed 2015·Granted Oct 9, 2018·4 cites·15 claims
- 0692US6768558B1Printed matter including invisible information and printing systemHITACHI LTD·Filed 2000·Granted Jul 27, 2004·64 cites·32 claims
- 0792US6737021B2Automatic analyzerHITACHI LTD·Filed 2001·Granted May 18, 2004·46 cites·6 claims
- 0890US7842237B1Automatic analyzer and rack transfer deviceHITACHI LTD·Filed 2000·Granted Nov 30, 2010·52 cites·10 claims
- 0986US8559078B2Colorimetric chart and color reproduction estimating deviceSHIBUYA TAKESHI·Filed 2010·Granted Oct 15, 2013·4 cites·12 claims
- 1086US7679781B2Color image processing apparatus and color printer systemRICOH KK·Filed 2006·Granted Mar 16, 2010·11 cites·12 claims
- 1185US5838465AColor compensating method of color image and color image generating apparatusHITACHI LTD·Filed 1995·Granted Nov 17, 1998·104 cites·32 claims
- 1284US10922591B2Image forming apparatusSHIBUYA TAKESHI·Filed 2020·Granted Feb 16, 2021·2 cites·14 claims
- 1384US5031059ARotating disk storage device with cooling gas flow controlHITACHI LTD·Filed 1990·Granted Jul 9, 1991·38 cites·26 claims
- 1483US11391750B2Automatic analyzer and sample-processing systemHITACHI HIGH TECH CORP·Filed 2018·Granted Jul 19, 2022·1 cites·11 claims
- 1583US7894118B2Electrochromic compound, electrochromic composition and display deviceRICOH CO LTD·Filed 2009·Granted Feb 22, 2011·7 cites·15 claims
- 1683US7663797B2Multicolor display elementRICOH KK·Filed 2007·Granted Feb 16, 2010·6 cites·23 claims
- 1783US5517372ARotating disk storage device with cooling air flow controlHITACHI LTD·Filed 1993·Granted May 14, 1996·30 cites·15 claims
- 1882US7948659B2Halftoning device and halftoning method and laser printer including the sameRICOH CO LTD·Filed 2006·Granted May 24, 2011·8 cites·15 claims
- 1981US9778605B2Heater lamp for fixation, fixing device, and image forming apparatusKABATA TOSHIYUKI·Filed 2014·Granted Oct 3, 2017·3 cites·10 claims
- 2081US7830584B2Organic-inorganic composite material and method for producing the same, and functional electrode and functional deviceRICOH KK·Filed 2008·Granted Nov 9, 2010·7 cites·16 claims
- 2181US7130076B2Image output device and test chart for the sameRICOH PRINTING SYS LTD·Filed 2001·Granted Oct 31, 2006·24 cites·40 claims
- 2279US9229019B2Automatic analyzer and sample-processing systemTOKIEDA HITOSHI·Filed 2012·Granted Jan 5, 2016·4 cites·6 claims
- 2379US9108832B2Cover opener and automatic analyzing device using sameAKUTSU MASANORI·Filed 2010·Granted Aug 18, 2015·8 cites·6 claims
- 2478US8728395B2Automatic analyzerSUZUKI KOUICHI·Filed 2011·Granted May 20, 2014·4 cites·7 claims
- 2576US10712681B2Toner, toner storage unit, image forming apparatus, and method for manufacturing tonerMASUDA MINORU·Filed 2019·Granted Jul 14, 2020·1 cites·7 claims
- 2676US7525716B2Display device and display apparatusRICOH KK·Filed 2006·Granted Apr 28, 2009·4 cites·13 claims
- 2776US6197255B1Chemical analyzing apparatusHITACHI LTD·Filed 1999·Granted Mar 6, 2001·49 cites·5 claims
- 2875US8559058B2Image processing apparatus, image processing method, and computer program productSHIBUYA TAKESHI·Filed 2011·Granted Oct 15, 2013·3 cites·8 claims
- 2975USD631976SSampler unit for clinical analyzerHITACHI HIGH TECH CORP·Filed 2010·Granted Feb 1, 2011·21 cites·1 claims
- 3075US7489432B2Electrochromic display device and display apparatusRICOH KK·Filed 2006·Granted Feb 10, 2009·5 cites·13 claims
- 3174USD474416SBiochemical analysis machineHITACHI HIGH TECHNOLOGIES·Filed 2002·Granted May 13, 2003·20 cites·1 claims
- 3273US9640140B2Color management systemSHIBUYA TAKESHI·Filed 2013·Granted May 2, 2017·2 cites·19 claims
- 3371US7864372B2Color conversion apparatus and color conversion methodRICOH CO LTD·Filed 2008·Granted Jan 4, 2011·3 cites·6 claims
- 3471US7771656B2Automatic analyzerHITACHI LTD·Filed 2001·Granted Aug 10, 2010·9 cites·5 claims
- 3570US7570412B2Reversible recording material and displaying elementRICOH KK·Filed 2007·Granted Aug 4, 2009·3 cites·8 claims
- 3668US5636082ARotating disk storage device with cooling air flow controlHITACHI LTD·Filed 1995·Granted Jun 3, 1997·18 cites·1 claims
- 3764US6204933B1Information print system and image processing apparatusHITACHI LTD·Filed 1998·Granted Mar 20, 2001·30 cites·22 claims
- 3862US8319811B2Scanning line aligned image forming apparatusSHIBUYA TAKESHI·Filed 2009·Granted Nov 27, 2012·2 cites·3 claims
- 3962US8080683B2Electrochromic compound and electrochromic display device using the sameSHIBUYA TAKESHI·Filed 2009·Granted Dec 20, 2011·1 cites·5 claims
- 4062US6191868B1Distributed PWM halftoning unit and printerHITACHI LTD·Filed 1998·Granted Feb 20, 2001·24 cites·4 claims
- 4159US10261432B2Ester wax, toner, developer, toner storing unit, and image forming apparatusKABATA TOSHIYUKI·Filed 2017·Granted Apr 16, 2019·0 cites·12 claims
- 4259US6500388B1Automatically analyzing apparatusHITACHI LTD·Filed 1998·Granted Dec 31, 2002·19 cites·4 claims
- 4357US11499062B2Ink, ink set, ink container, image forming method, and image forming apparatusRICOH CO LTD·Filed 2018·Granted Nov 15, 2022·0 cites·13 claims
- 4457US5867607ADigital halftoning apparatus and methodHITACHI LTD·Filed 1996·Granted Feb 2, 1999·23 cites·5 claims
- 4555US10887490B2Image processing apparatus, image processing system, and computer program productRICOH CO LTD·Filed 2019·Granted Jan 5, 2021·0 cites·17 claims
- 4655US6031629APicture quality stabilizer for a color laser printerHITACHI LTD·Filed 1998·Granted Feb 29, 2000·19 cites·6 claims
- 4754US7955557B2Automatic analyzerHITACHI LTD·Filed 2003·Granted Jun 7, 2011·4 cites·8 claims
- 4850US9742962B2Image processing apparatus, method, and recording medium storing image processing program for gradation correction to minimize the difference between the corrected colorimetric value and a colorimetric measured color valueSHIBUYA TAKESHI·Filed 2014·Granted Aug 22, 2017·0 cites·17 claims
- 4948US2009256157A1Display device and manufacturing method of display deviceRICOH KK·Filed 2009·Application pending·0 cites
- 5048US2012050838A1Electrochromic display apparatusHIRANO SHIGENOBU·Filed 2009·Application pending·0 cites
Showing the top 50 of 58 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →