Inventor · disambiguated record
Tomoko Koyama
Also filed as: KOYAMA TOMOKO
30 granted patents·2 pending applications·546 citations·filing 1997–2012
97Inventor score
Top patents by PatentIndex Score
32 records- 0195US6639250B1Multiple-wavelength light emitting device and electronic apparatusSEIKO EPSON CORP·Filed 2000·Granted Oct 28, 2003·137 cites·20 claims
- 0291US6791261B1Multiple wavelength light emitting device, electronic apparatus, and interference mirrorSEIKO EPSON CORP·Filed 2000·Granted Sep 14, 2004·56 cites·28 claims
- 0388US6704335B1Light-emitting deviceSEIKO EPSON CORP·Filed 1999·Granted Mar 9, 2004·73 cites·37 claims
- 0486US7198411B2Manufacturing method of optical communication module, optical communication module, and electronic apparatusSEIKO EPSON CORP·Filed 2004·Granted Apr 3, 2007·32 cites·9 claims
- 0585US7566909B2Surface emitting type device having a resistance to damage by static electricitySEIKO EPSON CORP·Filed 2006·Granted Jul 28, 2009·8 cites·22 claims
- 0684US7197203B2Optical element, optical module, and optical transmission deviceSEIKO EPSON CORP·Filed 2005·Granted Mar 27, 2007·8 cites·19 claims
- 0783US7385225B2Surface emitting type device, and method for manufacturing the sameSEIKO EPSON CORP·Filed 2005·Granted Jun 10, 2008·7 cites·12 claims
- 0883US6512250B1Light-emitting deviceSEIKO EPSON CORP·Filed 2000·Granted Jan 28, 2003·26 cites·26 claims
- 0979US7701302B2Atomic frequency acquiring apparatus and atomic clockSEIKO EPSON CORP·Filed 2006·Granted Apr 20, 2010·7 cites·8 claims
- 1079US6587620B2Surface emitting deviceSEIKO EPSON CORP·Filed 2001·Granted Jul 1, 2003·26 cites·23 claims
- 1178US7446618B2Atomic frequency acquiring apparatus and atomic clockSEIKO EPSON CORP·Filed 2006·Granted Nov 4, 2008·7 cites·9 claims
- 1276US6147726AReflective display using multiple liquid crystal layers for controlable reflectionSEIKO EPSON CORP·Filed 1997·Granted Nov 14, 2000·50 cites·42 claims
- 1372US6727646B1Light-emitting deviceSEIKO EPSON CORP·Filed 2000·Granted Apr 27, 2004·16 cites·11 claims
- 1471US7138764B2Light-emitting device and electronic instrumentSEIKO EPSON CORP·Filed 2002·Granted Nov 21, 2006·17 cites·7 claims
- 1570US6912334B2Optical switchSEIKO EPSON CORP·Filed 2003·Granted Jun 28, 2005·12 cites·21 claims
- 1667US7582233B2Method of manufacturing directional couplerSEIKO EPSON CORP·Filed 2006·Granted Sep 1, 2009·2 cites·18 claims
- 1766US6917744B2Optical multiplexing and demultiplexing device, optical communication apparatus, and optical communication systemSEIKO EPSON CORP·Filed 2003·Granted Jul 12, 2005·9 cites·11 claims
- 1866US6462356B1Light emitting deviceSEIKO EPSON CORP·Filed 2000·Granted Oct 8, 2002·12 cites·23 claims
- 1962US6512249B2Light emitting device, display device, and electronic applianceSEIKO EPSON CORP·Filed 2002·Granted Jan 28, 2003·8 cites·20 claims
- 2060USRE43759EMultiple wavelength light emitting device, electronic apparatus, and interference mirrorSHIMODA TATSUYA·Filed 2000·Granted Oct 23, 2012·5 cites·44 claims
- 2158US7129469B2Photodetectors, optical modules, and optical transmission devicesSEIKO EPSON CORP·Filed 2004·Granted Oct 31, 2006·7 cites·11 claims
- 2258US6870182B2Organic semiconductor deviceSEIKO EPSON CORP·Filed 2002·Granted Mar 22, 2005·6 cites·25 claims
- 2357US6737802B2Light-emitting deviceSEIKO EPSON CORP·Filed 2001·Granted May 18, 2004·5 cites·18 claims
- 2456US6734621B2Light emitting device having magnetized cathode and anodeSEIKO EPSON CORP·Filed 2002·Granted May 11, 2004·4 cites·17 claims
- 2552US6795463B2Light -emitting deviceSEIKO EPSON CORP·Filed 2001·Granted Sep 21, 2004·3 cites·34 claims
- 2650USRE45442EMultiple wavelength light emitting device, electronic apparatus, and interference mirrorSHIMODA TATSUYA·Filed 2000·Granted Mar 31, 2015·1 cites·50 claims
- 2750USRE44164EMultiple wavelength light emitting device, electronic apparatus, and interference mirrorSHIMODA TATSUYA·Filed 2000·Granted Apr 23, 2013·1 cites·28 claims
- 2850US7940133B2Atomic frequency acquiring apparatus and atomic clockSEIKO EPSON CORP·Filed 2010·Granted May 10, 2011·0 cites·6 claims
- 2949US6791115B2Light emitting device, display device and electronic instrumentSEIKO EPSON CORP·Filed 2002·Granted Sep 14, 2004·1 cites·7 claims
- 3044US7453914B2Optical elementSEIKO EPSON CORP·Filed 2005·Granted Nov 18, 2008·0 cites·10 claims
- 3144US2012314274A1Electrophoretic display and electronic deviceKOMATSU HARUNOBU·Filed 2012·Application pending·0 cites
- 3240US2003099438A1Directional coupler and optical communication deviceSEIKO EPSON CORP·Filed 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →