Inventor · disambiguated record
Katsumi Kawamura
Also filed as: KAWAMURA KATSUMI
43 granted patents·2 pending applications·841 citations·filing 1983–2006
98Inventor score
Top patents by PatentIndex Score
45 records- 0186US5060215AMethod and apparatus for leading-in focus servo by moving the objective lens toward the recording surface at two different speedsPIONEER ELECTRONIC CORP·Filed 1989·Granted Oct 22, 1991·38 cites·8 claims
- 0285US6885623B1Recording and reproducing method of information recording medium and information recording and reproducing apparatusPIONEER CORP·Filed 2000·Granted Apr 26, 2005·20 cites·26 claims
- 0385US6203574B1Prosthetic bone filler and process for the production of the sameASAHI OPTICAL CO LTD·Filed 1999·Granted Mar 20, 2001·137 cites·13 claims
- 0485US5570962AThermal printerASAHI OPTICAL CO LTD·Filed 1995·Granted Nov 5, 1996·52 cites·11 claims
- 0584US7732573B2Method for producing porous body comprising apatite/collagen composite fibersNAT INST FOR MATERIALS SCIENCE·Filed 2005·Granted Jun 8, 2010·9 cites·4 claims
- 0684US5158756APorous particles of calcium phosphate compound and production process thereofASAHI OPTICAL CO LTD·Filed 1990·Granted Oct 27, 1992·57 cites·5 claims
- 0783US4879618AWind breaking assembly for a magnetic headHITACHI LTD·Filed 1988·Granted Nov 7, 1989·34 cites·12 claims
- 0883US4748610AServo system in data reading apparatusPIONEER ELECTRONIC CORP·Filed 1984·Granted May 31, 1988·25 cites·5 claims
- 0980US8008357B2Method for controlling average pore diameter of porous body comprising apatite/collagen composite fibersHOYA CORP·Filed 2005·Granted Aug 30, 2011·8 cites·2 claims
- 1078US7150862B2Method of manufacturing powderPENTAX CORP·Filed 2003·Granted Dec 19, 2006·11 cites·25 claims
- 1175US5054013ATrack transverse detection signal generating circuitPIONEER ELECTRONIC CORP·Filed 1990·Granted Oct 1, 1991·23 cites·8 claims
- 1274US5651884APacking material for liquid chromatographyASAHI OPTICAL CO LTD·Filed 1995·Granted Jul 29, 1997·30 cites·2 claims
- 1374US4984115ARotary actuator and bearing support thereforHITACHI LTD·Filed 1989·Granted Jan 8, 1991·24 cites·8 claims
- 1468US6306297B1Packing material for liquid chromatography and process for producing the sameASAHI OPTICAL CO LTD·Filed 1995·Granted Oct 23, 2001·28 cites·1 claims
- 1567US8039090B2Porous composite containing calcium phosphate and process for producing the sameHOYA CORP·Filed 2004·Granted Oct 18, 2011·10 cites·11 claims
- 1667US7599259B2Recording and reproducing method of information regarding medium and information recording and reproducing apparatusPIONEER CORP·Filed 2005·Granted Oct 6, 2009·2 cites·2 claims
- 1767US5599113AThermal printerASAHI OPTICAL CO LTD·Filed 1995·Granted Feb 4, 1997·24 cites·19 claims
- 1866US5917533AThermal line printerASAHI OPTICAL CO LTD·Filed 1996·Granted Jun 29, 1999·20 cites·19 claims
- 1966US5638104AThermal line printerASAHI OPTICAL CO LTD·Filed 1994·Granted Jun 10, 1997·19 cites·30 claims
- 2065US5039408APacking material for liquid chromatographyASAHI OPTICAL CO LTD·Filed 1990·Granted Aug 13, 1991·23 cites·7 claims
- 2163US5030611APorous ceramics materialASAHI OPTICAL CO LTD·Filed 1988·Granted Jul 9, 1991·17 cites·10 claims
- 2261US5825985AThermal printer and thermal printer head driving systemASAHI OPTICAL CO LTD·Filed 1995·Granted Oct 20, 1998·25 cites·18 claims
- 2359US5669720AThermal printer with minimized power difference between sequentially driven blocks of printing elementsASAHI OPTICAL CO LTD·Filed 1996·Granted Sep 23, 1997·18 cites·8 claims
- 2458US5714994AThermal printer with power save featureASAHI OPTICAL CO LTD·Filed 1995·Granted Feb 3, 1998·16 cites·11 claims
- 2558US5677721AThermal printer head driving systemASAHI OPTICAL CO LTD·Filed 1995·Granted Oct 14, 1997·17 cites·22 claims
- 2657US6145976AInk transfer printerASAHI OPTICAL CO LTD·Filed 1997·Granted Nov 14, 2000·12 cites·42 claims
- 2757US6095700ABattery operated thermal printer with means to optimize battery lifeASAHI OPTICAL CO LTD·Filed 1997·Granted Aug 1, 2000·16 cites·12 claims
- 2857US5835107APrinter with battery discharge deviceASAHI OPTICAL CO LTD·Filed 1995·Granted Nov 10, 1998·16 cites·7 claims
- 2957US4892423ARotary actuator and fabrication process thereforHITACHI LTD·Filed 1986·Granted Jan 9, 1990·15 cites·3 claims
- 3057US4812934AActuator for memory storage deviceHITACHI LTD·Filed 1987·Granted Mar 14, 1989·10 cites·9 claims
- 3153US7929826B2Information recording apparatus, information recording method and information recording medium in which recording controlling program is recordedPIONEER CORP·Filed 2006·Granted Apr 19, 2011·0 cites·9 claims
- 3253US5103436ATilt servo device in optical disc playerPIONEER ELECTRONIC CORP·Filed 1989·Granted Apr 7, 1992·9 cites·8 claims
- 3349US6108097AMode control systemASAHI OPTICAL CO LTD·Filed 1997·Granted Aug 22, 2000·11 cites·4 claims
- 3446US5171440AColumn for liquid chromatographyASAHI OPTICAL CO LTD·Filed 1991·Granted Dec 15, 1992·11 cites·6 claims
- 3542US5807000AThermal transfer printer system and recording unitASAHI OPTICAL CO LTD·Filed 1996·Granted Sep 15, 1998·7 cites·32 claims
- 3642US4637005AFocus servo device of a system for reading out recorded informationPIONEER ELECTRONIC CORP·Filed 1983·Granted Jan 13, 1987·4 cites·3 claims
- 3740US5929888ARecording sheet cleaning apparatus for thermal printerASAHI OPTICAL CO LTD·Filed 1997·Granted Jul 27, 1999·6 cites·8 claims
- 3839US5717837AThermal printer and thermal printer head driving systemASAHI OPTICAL CO LTD·Filed 1995·Granted Feb 10, 1998·8 cites·21 claims
- 3939US5651882APacking material for liquid chromatography and process for producing the sameASAHI OPTICAL CO LTD·Filed 1995·Granted Jul 29, 1997·4 cites·5 claims
- 4039US2002021890A1Information recording apparatus, information recording method and information recording medium in which recording controlling program is recordedPIONEER CORP·Filed 2001·Application pending·0 cites
- 4139US2002025140A1Information recording apparatus, information recording method and information recording medium in which recording controlling program is recordedPIONEER CORP·Filed 2001·Application pending·0 cites
- 4237US6404430B1Virtual space information processorDIGIPARK INC·Filed 1998·Granted Jun 11, 2002·17 cites·3 claims
- 4336US5777657AThermal printer and thermal printer head driving systemASAHI OPTICAL CO LTD·Filed 1995·Granted Jul 7, 1998·4 cites·16 claims
- 4435US5010582APickup driving device for disk playerPIONEER ELECTRONIC CORP·Filed 1990·Granted Apr 23, 1991·2 cites·2 claims
- 4532USRE35340EPacking material for liquid chromatographyASAHI OPTICAL CO LTD·Filed 1993·Granted Oct 1, 1996·2 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →