Inventor · disambiguated record
Shunji Takekawa
Also filed as: TAKEKAWA SHUNJI
15 granted patents·2 pending applications·276 citations·filing 2000–2007
93Inventor score
Files withDIRECTOR GENERAL OF NAT INST F4NAT INST FOR MATERIALS SCIENCE4NAT INST RES INORGANIC MAT4PIONEER CORP2INDP ADMINISTRATIVE INST NIMS1
Top patents by PatentIndex Score
17 records- 0197US6856433B2Holographic recording medium and holographic recording/reproducing apparatus using the samePIONEER CORP·Filed 2003·Granted Feb 15, 2005·110 cites·8 claims
- 0292US6373806B1Two-color hologram recording/reproducing apparatusDIRECTOR GENERAL OF NAT INST F·Filed 2000·Granted Apr 16, 2002·46 cites·8 claims
- 0386US6535472B1Hologram recording apparatus and method thereforDIRECTOR GENERAL OF NAT INST F·Filed 2000·Granted Mar 18, 2003·31 cites·7 claims
- 0484US6673330B1Single crystal of lithium niobate or tantalate and its optical element, and process and apparatus for producing an oxide single crystalNAT INST RES INORGANIC MAT·Filed 2000·Granted Jan 6, 2004·19 cites·18 claims
- 0584US6464777B2Single crystal of lithium niobate or tantalate and its optical element, and process and apparatus for producing an oxide single crystalNAT INST RES INORGANIC MAT·Filed 2001·Granted Oct 15, 2002·19 cites·10 claims
- 0680US6670079B1Photorefractive materialDIRECTOR GENERAL OF NAT INST F·Filed 2000·Granted Dec 30, 2003·21 cites·8 claims
- 0766US6747787B2Optically functional device, single crystal substrate for the device and method for its useNAT INST RES INORGANIC MAT·Filed 2001·Granted Jun 8, 2004·10 cites·5 claims
- 0863US6624923B2Optically functional device, single crystal substrate for the device and method for its useNAT INST RES INORGANIC MAT·Filed 2001·Granted Sep 23, 2003·8 cites·7 claims
- 0960US7985294B2Optical device and method of manufacturing the sameSUMITOMO OSAKA CEMENT CO LTD·Filed 2006·Granted Jul 26, 2011·2 cites·7 claims
- 1057US8223427B2Method of fixing polarization-reversed region formed in ferroelectric single crystalLIU XIAOYAN·Filed 2007·Granted Jul 17, 2012·1 cites·6 claims
- 1154US6473208B1Two-color holographic recording apparatusDIRECTOR GENERAL OF NAT INST F·Filed 2000·Granted Oct 29, 2002·3 cites·14 claims
- 1249US6814800B2Method for treating photorefractive effect of an optical device and photorefractive effect-suppressed optical frequency conversion deviceNAT INST FOR MATERIALS SCIENCE·Filed 2003·Granted Nov 9, 2004·2 cites·15 claims
- 1348US7403327B2Wavelength conversion element having multi-gratings and light generating apparatus using said element, and wavelength conversion element having cylindrical ferroelectric single crystals and light generating apparatus using said elementNAT INST FOR MATERIALS SCIENCE·Filed 2004·Granted Jul 22, 2008·2 cites·58 claims
- 1443US7999983B2Lens material, optical electronic component and optical electronic deviceNAT INST FOR MATERIALS SCIENCE·Filed 2004·Granted Aug 16, 2011·0 cites·2 claims
- 1543US7446930B2Method of inverting polarization by controlling defect density or degree of order of lattice pointsNAT INST FOR MATERIALS SCIENCE·Filed 2004·Granted Nov 4, 2008·2 cites·18 claims
- 1642US2004234867A1Ferroelectric material, two-color holographic recording medium, and wavelength selection filterPIONEER CORP·Filed 2004·Application pending·0 cites
- 1738US2003064294A1Pretreatment method for hologram recording mediumINDP ADMINISTRATIVE INST NIMS·Filed 2002·Application pending·0 cites
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