Inventor · disambiguated record
Masaru Ohtsuka
Also filed as: OHTSUKA MASARU
25 granted patents·5 pending applications·838 citations·filing 1987–2024
97Inventor score
Files withCANON KK13KONISHIROKU PHOTO IND6KONICA MINOLTA INC5KONICA MINOLTA BUSINESS TECH2OHTSUKA MASARU2
Top patents by PatentIndex Score
30 records- 0197US6354059B1Sheet finisher and image forming apparatus therewithKONISHIROKU PHOTO IND·Filed 1999·Granted Mar 12, 2002·129 cites·16 claims
- 0293US4993696AMovable stage mechanismCANON KK·Filed 1987·Granted Feb 19, 1991·94 cites·21 claims
- 0392US6568668B1Sheet finisher and image forming apparatus therewithKONISHIROKU PHOTO IND·Filed 1999·Granted May 27, 2003·49 cites·18 claims
- 0492US6375180B1Sheet finisher, image forming apparatus, and sheet conveyance apparatusKONISHIROKU PHOTO IND·Filed 2000·Granted Apr 23, 2002·44 cites·14 claims
- 0590US6701633B2Apparatus and method for measuring a shape using multiple probesCANON KK·Filed 2002·Granted Mar 9, 2004·46 cites·27 claims
- 0688US6575446B2Image forming apparatus having sheet finisherKONISHIROKU PHOTO IND·Filed 1999·Granted Jun 10, 2003·42 cites·29 claims
- 0786US4887804AStage mechanismCANON KK·Filed 1987·Granted Dec 19, 1989·71 cites·11 claims
- 0884US7221460B2Optical system in exposure apparatus, and device manufacturing methodCANON KK·Filed 2004·Granted May 22, 2007·19 cites·35 claims
- 0983US6375181B1Finisher and image forming apparatus therewithKONISHIROKU PHOTO IND·Filed 2000·Granted Apr 23, 2002·21 cites·4 claims
- 1082US5106191ATwo-frequency distance and displacement measuring interferometerCANON KK·Filed 1990·Granted Apr 21, 1992·47 cites·19 claims
- 1174US5485275AApparatus and method for measuring the error of an apparatus which measure a cylindrical shape using an interferometerCANON KK·Filed 1993·Granted Jan 16, 1996·33 cites·12 claims
- 1274US5066131AStage mechanismCANON KK·Filed 1989·Granted Nov 19, 1991·25 cites·20 claims
- 1374US5034647AInchworm type driving mechanismCANON KK·Filed 1989·Granted Jul 23, 1991·41 cites·2 claims
- 1473US4850709AFabri-perot spectroscopy method and apparatus utilizing the sameCANON KK·Filed 1987·Granted Jul 25, 1989·33 cites·9 claims
- 1571US6047960ASheet tamping device for offsetting stacks of documentsKONISHIROKU PHOTO IND·Filed 1997·Granted Apr 11, 2000·31 cites·14 claims
- 1670US6008901AShape measuring heterodyne interferometer with multiplexed photodetector aaray or inclined probe headCANON KK·Filed 1998·Granted Dec 28, 1999·33 cites·18 claims
- 1770US5991034AInterferometer which varies a position to be detected based on inclination of surface to be measuredCANON KK·Filed 1997·Granted Nov 23, 1999·31 cites·17 claims
- 1870US2025196489A1Lamination processing system and lamination processing methodKONICA MINOLTA INC·Filed 2024·Application pending·0 cites
- 1968US6972850B2Method and apparatus for measuring the shape of an optical surface using an interferometerCANON KK·Filed 2003·Granted Dec 6, 2005·14 cites·27 claims
- 2067US2024192143A1Inspection apparatus, recording medium, and inspection systemKONICA MINOLTA INC·Filed 2023·Application pending·0 cites
- 2155US5170217AObject measuring apparatus using lightwave interferenceCANON KK·Filed 1992·Granted Dec 8, 1992·19 cites·34 claims
- 2254US2025076803A1Image forming system, control method, and storage mediumKONICA MINOLTA INC·Filed 2024·Application pending·0 cites
- 2352US9977358B2Image forming deviceKONICA MINOLTA INC·Filed 2017·Granted May 22, 2018·0 cites·11 claims
- 2451US10445033B2Maintenance management device, device to be maintained and non-transitory recording medium storing a computer readable programKONICA MINOLTA INC·Filed 2018·Granted Oct 15, 2019·0 cites·12 claims
- 2546US5428655AMethod and apparatus for three-dimensional detection of particlesMITSUI MINING & SMELTING CO·Filed 1993·Granted Jun 27, 1995·14 cites·15 claims
- 2642US8339655B2Image forming apparatus and image forming method for displaying a first image while a corresponding second image is being processedOHTSUKA MASARU·Filed 2009·Granted Dec 25, 2012·0 cites·16 claims
- 2742US7341249B2Sheet holding apparatus and image forming systemKONICA MINOLTA BUSINESS TECH·Filed 2004·Granted Mar 11, 2008·2 cites·4 claims
- 2840US8724124B2Image forming apparatus, image forming system, and computer-readable recording medium having programOHTSUKA MASARU·Filed 2012·Granted May 13, 2014·0 cites·20 claims
- 2939US2011194128A1Image forming apparatus and counting method for image forming apparatusKONICA BUSINESS TECHNOLOGIES INC·Filed 2011·Application pending·0 cites
- 3037US2011157651A1Image forming apparatus and control method thereofKONICA MINOLTA BUSINESS TECH·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →