Inventor · disambiguated record
Kazuhito Yamasawa
Also filed as: YAMASAWA KAZUHITO
17 granted patents·4 pending applications·165 citations·filing 1993–2020
94Inventor score
Files withTDK CORP20
Top patents by PatentIndex Score
21 records- 0185US7517406B2Magnetic garnet material, faraday rotator, optical device, bismuth-substituted rare earth-iron-garnet single-crystal film and method for producing the same and crucible for producing the sameTDK CORP·Filed 2007·Granted Apr 14, 2009·11 cites·3 claims
- 0285US7333261B2Magnetic garnet material, faraday rotator, optical device, bismuth-substituted rare earth-iron-garnet single-crystal film and method for producing the same crucible for producing the sameTDK CORP·Filed 2006·Granted Feb 19, 2008·11 cites·6 claims
- 0382US7133189B2Magnetic garnet material, faraday rotator, optical device, bismuth-substituted rare earth-iron-garnet single-crystal film and method for producing the same and crucible for producing the sameTDK CORP·Filed 2003·Granted Nov 7, 2006·17 cites·3 claims
- 0475US6775052B2Hard magnetic garnet material, faraday rotator, optical device, optical communication system, method of manufacturing faraday rotator and method of manufacturing bismuth-substituted rare earth iron garnet single crystalTDK CORP·Filed 2002·Granted Aug 10, 2004·13 cites·13 claims
- 0573US6875270B2Magnetic garnet single-crystal film and method of producing the same, and Faraday rotator comprising the sameTDK CORP·Filed 2001·Granted Apr 5, 2005·10 cites·6 claims
- 0671US7242516B2Hard magnetic garnet material, faraday rotator, optical device, optical communication system, method of manufacturing faraday rotator and method of manufacturing bismuth-substituted rare earth iron garnet single crystalTDK CORP·Filed 2004·Granted Jul 10, 2007·11 cites·7 claims
- 0771US6527973B2Magnetic garnet material and magnetooptical device using the sameTDK CORP·Filed 2000·Granted Mar 4, 2003·12 cites·4 claims
- 0869US6853473B2Faraday rotator and optical device comprising the same, and antireflection film and optical device comprising the sameTDK CORP·Filed 2003·Granted Feb 8, 2005·13 cites·27 claims
- 0963US6309557B1Magnetic garnet material and faraday rotator using the sameTDK CORP·Filed 2000·Granted Oct 30, 2001·9 cites·2 claims
- 1063US5640516AFaraday rotatorTDK CORP·Filed 1993·Granted Jun 17, 1997·26 cites·9 claims
- 1161US6641751B1Magnetic garnet single crystal and faraday rotator using the sameTDK CORP·Filed 2000·Granted Nov 4, 2003·9 cites·11 claims
- 1260US5434101AProcess for producing thin film by epitaxial growthTDK CORP·Filed 1993·Granted Jul 18, 1995·12 cites·7 claims
- 1357US5662740AProcess for producing thin film by epitaxial growthTDK CORP·Filed 1994·Granted Sep 2, 1997·11 cites·5 claims
- 1450US11773508B2Substrate and light-emitting elementTDK CORP·Filed 2018·Granted Oct 3, 2023·0 cites·8 claims
- 1550US2006141281A1R-T-B system permanent magnet and plating filmTDK CORP·Filed 2005·Application pending·0 cites
- 1648US2020109488A1Nitride single crystalTDK CORP·Filed 2018·Application pending·0 cites
- 1746US10337120B2Alumina substrateTDK CORP·Filed 2015·Granted Jul 2, 2019·0 cites·17 claims
- 1846US10294585B2Alumina substrateTDK CORP·Filed 2015·Granted May 21, 2019·0 cites·12 claims
- 1945US2022158029A1Substrate and light emitting elementTDK CORP·Filed 2020·Application pending·0 cites
- 2044US10458041B2Alumina substrateTDK CORP·Filed 2016·Granted Oct 29, 2019·0 cites·18 claims
- 2137US2004177801A1Substrate for forming magnetic garnet single crystal film, optical device, and its production methodFiled 2002·Application pending·0 cites
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