Inventor · disambiguated record
Akira Kouchiyama
Also filed as: KOUCHIYAMA AKIRA
58 granted patents·7 pending applications·452 citations·filing 1992–2015
98Inventor score
Top patents by PatentIndex Score
65 records- 0195US7425724B2Memory device and method of production and method of use of same and semiconductor device and method of production of sameSONY CORP·Filed 2005·Granted Sep 16, 2008·25 cites·6 claims
- 0293US7145791B2Memory device having variable resistive memory elementSONY CORP·Filed 2005·Granted Dec 5, 2006·32 cites·3 claims
- 0392US7344822B2Resist material and nanofabrication methodSONY CORP·Filed 2006·Granted Mar 18, 2008·10 cites·19 claims
- 0492US7009208B2Memory device and method of production and method of use of same and semiconductor device and method of production of sameSONY CORP·Filed 2003·Granted Mar 7, 2006·47 cites·5 claims
- 0591US7307270B2Memory element and memory deviceSONY CORP·Filed 2005·Granted Dec 11, 2007·26 cites·4 claims
- 0690US7175962B2Resist material and nanofabrication methodSONY CORP·Filed 2003·Granted Feb 13, 2007·23 cites·2 claims
- 0788US8427860B2Memory component, memory device, and method of operating memory deviceOHBA KAZUHIRO·Filed 2011·Granted Apr 23, 2013·10 cites·22 claims
- 0887US8981325B2Memory device and storage apparatusARATANI KATSUHISA·Filed 2010·Granted Mar 17, 2015·6 cites·16 claims
- 0987US8884397B2Memory device and storage apparatusARATANI KATSUHISA·Filed 2010·Granted Nov 11, 2014·6 cites·7 claims
- 1086US6724544B2Optical lens and method of producing the same, method of producing optical lens array, focus error signal production method, and optical pickup apparatusSONY CORP·Filed 2002·Granted Apr 20, 2004·13 cites·15 claims
- 1185US7560220B2Resist material and nanofabrication methodSONY CORP·Filed 2008·Granted Jul 14, 2009·4 cites·19 claims
- 1285US7092278B2Memory deviceSONY CORP·Filed 2005·Granted Aug 15, 2006·18 cites·8 claims
- 1381US6631099B1Magnetic field modulation magnetic head, magneto-optical element, optical pickup device, and optical disk drive, in which first and second magnetic cores are placed on opposite sides of magnetic field generation coil to achieve low power consumption and high efficiencySONY CORP·Filed 2000·Granted Oct 7, 2003·15 cites·17 claims
- 1480US7719082B2Memory device and storage apparatusSONY CORP·Filed 2004·Granted May 18, 2010·22 cites·6 claims
- 1580US7061691B2Optical lens and method of producing the same, method of producing optical lens array, focus error signal production method, and optical pickup apparatusSONY CORP·Filed 2005·Granted Jun 13, 2006·2 cites·2 claims
- 1679US8295074B2Memory cellYASUDA SHUICHIRO·Filed 2008·Granted Oct 23, 2012·11 cites·19 claims
- 1779US6992842B2Optical device, optical system, method of production of same, and mold for production of sameSONY CORP·Filed 2005·Granted Jan 31, 2006·6 cites·6 claims
- 1877US7675053B2Memory device comprising a memory layer and a metal chalcogenide ion-source layerSONY CORP·Filed 2006·Granted Mar 9, 2010·3 cites·20 claims
- 1977US6773868B2Method for producing recording medium, method for producing stamper of recording medium, apparatus for producing recording medium, and apparatus for producing stamper of recording mediumSONY CORP·Filed 2001·Granted Aug 10, 2004·10 cites·7 claims
- 2076US7184295B2Memory deviceSONY CORP·Filed 2005·Granted Feb 27, 2007·10 cites·7 claims
- 2176US7145860B2Method for preparing an optical device using position markers around an optical lens and a light barrier filmSONY CORP·Filed 2005·Granted Dec 5, 2006·2 cites·7 claims
- 2273US8730709B2Memory component, memory device, and method of operating memory deviceSONY CORP·Filed 2013·Granted May 20, 2014·3 cites·14 claims
- 2373US7786459B2Memory element and memory device comprising memory layer positioned between first and second electrodesSONY CORP·Filed 2005·Granted Aug 31, 2010·7 cites·6 claims
- 2472US7126152B2Storage deviceSONY CORP·Filed 2004·Granted Oct 24, 2006·18 cites·17 claims
- 2571US9543514B2Memory component, memory device, and method of operating memory deviceSONY CORP·Filed 2015·Granted Jan 10, 2017·2 cites·12 claims
- 2671US7016234B2Storage deviceSONY CORP·Filed 2004·Granted Mar 21, 2006·12 cites·14 claims
- 2768US9240549B2Memory component, memory device, and method of operating memory deviceSONY CORP·Filed 2014·Granted Jan 19, 2016·2 cites·20 claims
- 2868US6825995B2Optical device, optical system, method of production of same, and mold for production of sameSONY CORP·Filed 2001·Granted Nov 30, 2004·7 cites·9 claims
- 2967US8222713B2Storage element and storage apparatusKOUCHIYAMA AKIRA·Filed 2006·Granted Jul 17, 2012·7 cites·9 claims
- 3066US6985310B2Optical device, optical system, method of production of same, and mold for production of sameSONY CORP·Filed 2004·Granted Jan 10, 2006·6 cites·13 claims
- 3165US8097189B2Method for manufacturing optical disc master and method for manufacturing optical discKOUCHIYAMA AKIRA·Filed 2009·Granted Jan 17, 2012·0 cites·13 claims
- 3265US7670514B2Method of producing optical disk-use original and method of producing optical diskSONY CORP·Filed 2003·Granted Mar 2, 2010·3 cites·11 claims
- 3364US7167390B2Storage device with resistive memory cells enduring repetitive data writingSONY CORP·Filed 2004·Granted Jan 23, 2007·13 cites·8 claims
- 3463US7772029B2Memory element and memory device comprising memory layer positioned between first and second electrodesSONY CORP·Filed 2007·Granted Aug 10, 2010·4 cites·4 claims
- 3561US6972912B2Optical device, optical system, method of production of same, and mold for production of sameSONY CORP·Filed 2004·Granted Dec 6, 2005·4 cites·12 claims
- 3659US6922376B1Sil magneto-optic transducer having thin film magnetic coil and holded magnetic coreSONY CORPORTION·Filed 1998·Granted Jul 26, 2005·13 cites·36 claims
- 3758US8685786B2Method of manufacturing a semiconductor memory device having a resistance change memory layerSONY CORP·Filed 2013·Granted Apr 1, 2014·0 cites·5 claims
- 3857US6064632ARecording/reproducing apparatus and a magneto-optical recording medium for use therewithSONY CORP·Filed 1998·Granted May 16, 2000·10 cites·8 claims
- 3956US6901045B2Optical lens and method of producing the same, method of producing optical lens array, focus error signal production method, and optical pickup apparatusSONY CORP·Filed 2004·Granted May 31, 2005·1 cites·7 claims
- 4056US5978320ARecording/reproducing apparatus for use with a photomagnetic recording mediumSONY CORP·Filed 1998·Granted Nov 2, 1999·10 cites·5 claims
- 4154US6839315B2Optical head and optical pickup having improved thermal coefficient matching for thermal expansion adjustmentSONY CORP·Filed 2001·Granted Jan 4, 2005·2 cites·31 claims
- 4253US7648671B2Method of making master for manufacturing optical disc and method of manufacturing optical discSONY CORP·Filed 2003·Granted Jan 19, 2010·2 cites·7 claims
- 4353US2011279793A1Method for manufacturing optical disc master and method for manufacturing optical discKOUCHIYAMA AKIRA·Filed 2011·Application pending·0 cites
- 4452US8546782B2Memory element and memory deviceYASUDA SHUICHIRO·Filed 2011·Granted Oct 1, 2013·0 cites·8 claims
- 4552US6946237B2Optical device, method for producing the same and recording and/or reproducing apparatus employing the sameSONY CORP·Filed 2001·Granted Sep 20, 2005·1 cites·4 claims
- 4652US2011273696A1Method for manufacturing optical disc master and method for manufacturing optical discSONY CORP·Filed 2011·Application pending·0 cites
- 4752US2011274895A1Method for manufacturing optical disc master and method for manufacturing optical discSONY CORP·Filed 2011·Application pending·0 cites
- 4851US9263670B2Memory element and memory deviceSONY CORP·Filed 2013·Granted Feb 16, 2016·0 cites·8 claims
- 4950US9564583B2Memory device comprising a non-phase-changing amorphous chalcogenide memory layer and a metal chalcogenide ion-source layerARATANI KATSUHISA·Filed 2004·Granted Feb 7, 2017·2 cites·9 claims
- 5050US6842296B2Optical lens and method of producing the same, method of producing optical lens array, focus error signal production method, and optical pickup apparatusSONY CORP·Filed 2004·Granted Jan 11, 2005·1 cites·6 claims
Showing the top 50 of 65 patent records by PatentIndex Score.
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