Inventor · disambiguated record
Nagaaki Ohyama
Also filed as: OHYAMA NAGAAKI
35 granted patents·1 pending application·1,616 citations·filing 1987–2008
98Inventor score
Files withOLYMPUS OPTICAL CO26MITSUBISHI ELECTRIC CORP3HITACHI LTD2FUJI PHOTO OPTICAL CO LTD1HITACHI MEDICAL CORP1
Top patents by PatentIndex Score
36 records- 0197US6633302B1Color reproduction system for making color display of four or more primary colors based on input tristimulus valuesOLYMPUS OPTICAL CO·Filed 2000·Granted Oct 14, 2003·114 cites·15 claims
- 0297US4895431AMethod of processing endoscopic imagesOLYMPUS OPTICAL CO·Filed 1987·Granted Jan 23, 1990·311 cites·34 claims
- 0393US7251362B2Color image processing apparatusOLYMPUS OPTICAL CO·Filed 2005·Granted Jul 31, 2007·23 cites·20 claims
- 0491US7443539B2Color reproducing deviceOLYMPUS OPTICAL CO·Filed 2005·Granted Oct 28, 2008·12 cites·18 claims
- 0591US6466334B1Color reproducing deviceOLYMPUS OPTICAL CO·Filed 1998·Granted Oct 15, 2002·100 cites·26 claims
- 0690US5148502AOptical image input/output apparatus for objects having a large focal depthOLYMPUS OPTICAL CO·Filed 1991·Granted Sep 15, 1992·113 cites·13 claims
- 0788US6549653B1Color image processing apparatusOLYMPUS OPTICAL CO·Filed 1998·Granted Apr 15, 2003·108 cites·25 claims
- 0884US6873339B2Color reproduction system for making color display of four or more primary colors based on input tristimulus valuesOLYMPUS OPTICAL CO·Filed 2003·Granted Mar 29, 2005·21 cites·15 claims
- 0984US5864364AColor image recording and reproducing systemOLYMPUS OPTICAL CO·Filed 1996·Granted Jan 26, 1999·88 cites·20 claims
- 1084US5764809AImage processing apparatus using correlation among imagesOLYMPUS OPTICAL CO·Filed 1996·Granted Jun 9, 1998·173 cites·34 claims
- 1181US4998286ACorrelation operational apparatus for multi-dimensional imagesOLYMPUS OPTICAL CO·Filed 1988·Granted Mar 5, 1991·69 cites·2 claims
- 1278US5680484AOptical image reconstructing apparatus capable of reconstructing optical three-dimensional image having excellent resolution and S/N ratioOLYMPUS OPTICAL CO·Filed 1996·Granted Oct 21, 1997·74 cites·14 claims
- 1377US5848114AComputerized tomography systemHITACHI MEDICAL CORP·Filed 1997·Granted Dec 8, 1998·68 cites·7 claims
- 1476US6961149B2Color reproducing deviceOLYMPUS OPTICAL CO·Filed 2002·Granted Nov 1, 2005·9 cites·29 claims
- 1574US7672017B2Color reproducing deviceOLYMPUS OPTICAL CO·Filed 2008·Granted Mar 2, 2010·2 cites·68 claims
- 1674US7010162B2Color image processing apparatusOLYMPUS OPTICAL CO·Filed 2003·Granted Mar 7, 2006·10 cites·20 claims
- 1774US5124842AImage input/output apparatusOLYMPUS OPTICAL CO·Filed 1991·Granted Jun 23, 1992·36 cites·10 claims
- 1870US5221959AColor discrimination data input apparatusOLYMPUS OPTICAL CO·Filed 1991·Granted Jun 22, 1993·36 cites·15 claims
- 1967US5121445AMethod and apparatus for reading imageKONISHIROKU PHOTO IND·Filed 1991·Granted Jun 9, 1992·26 cites·12 claims
- 2067US4962540AMethod and apparatus for detecting corresponding regions between picture imagesOLYMPUS OPTICAL CO·Filed 1989·Granted Oct 9, 1990·39 cites·35 claims
- 2162US7058804B1Data storing system, issuing apparatus, data providing apparatus and computer readable medium storing data storing programNIPPON TELEGRAPH & TELEPHONE·Filed 2000·Granted Jun 6, 2006·10 cites·14 claims
- 2260US7002623B1Image processing apparatus for correcting a color and texture of an image and displaying the corrected imageOLYMPUS OPTICAL CO·Filed 1999·Granted Feb 21, 2006·33 cites·25 claims
- 2360US6885476B2Color reproducing deviceOLYMPUS OPTICAL CO·Filed 2002·Granted Apr 26, 2005·2 cites·12 claims
- 2458US5216528AThree-dimensional multiplex hologramFUJI PHOTO OPTICAL CO LTD·Filed 1991·Granted Jun 1, 1993·19 cites·13 claims
- 2556US4979225AMethod and apparatus for detecting corresponding regions between picture imagesOLYMPUS OPTICAL CO·Filed 1987·Granted Dec 18, 1990·25 cites·36 claims
- 2654US5504884AInformation retrieval systemMITSUBISHI ELECTRIC CORP·Filed 1993·Granted Apr 2, 1996·16 cites·6 claims
- 2753US5294976AImage pickup system for reproducing image data using sensitivity functionOLYMPUS OPTICAL CO·Filed 1993·Granted Mar 15, 1994·11 cites·5 claims
- 2852US7511715B2Color reproduction system for making color display of four or more primary colors based on input tristimulus valuesOLYMPUS OPTICAL CO·Filed 2005·Granted Mar 31, 2009·0 cites·14 claims
- 2951US5105466AMethod and apparatus for detecting corresponding regions between picture imagesOLYMPUS OPTICAL CO·Filed 1990·Granted Apr 14, 1992·20 cites·17 claims
- 3049US5170119AProcess and apparatus for determining the biocurrent distribution of a living body when the exact number of field sources is not knownHITACHI LTD·Filed 1991·Granted Dec 8, 1992·24 cites·16 claims
- 3147US5257343AIntelligence information processing systemMITSUBISHI ELECTRIC CORP·Filed 1991·Granted Oct 26, 1993·10 cites·12 claims
- 3243US2004263638A1Color reproduction systemTELECOMM ADVANCEMENT ORG JAPAN·Filed 2002·Application pending·0 cites
- 3342US5450128AImage pickup system for reproducing image data using sensitivity functionOLYMPUS OPTICAL CO·Filed 1993·Granted Sep 12, 1995·6 cites·9 claims
- 3438US5479569AIntelligence information processing methodMITSUBISHI ELECTRIC CORP·Filed 1993·Granted Dec 26, 1995·5 cites·30 claims
- 3530US5218531ANMR spectroscopic analyzing methodHITACHI LTD·Filed 1990·Granted Jun 8, 1993·3 cites·11 claims
- 3630US5199085AApparatus for restoring original image from degraded imageOLYMPUS OPTICAL CO·Filed 1991·Granted Mar 30, 1993·0 cites·5 claims
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