Inventor · disambiguated record
Kazuo Fujiura
Also filed as: FUJIURA KAZUO
29 granted patents·2 pending applications·181 citations·filing 1989–2020
96Inventor score
Files withNIPPON TELEGRAPH & TELEPHONE22NAKAMURA KOUICHIROU2TOSHIBA KK2NAKAMURA KOICHIRO1SASAURA MASAHIRO1
Top patents by PatentIndex Score
31 records- 0188US5071460AProcess for the preparation of fluoride glass and process for the preparation of optical fiber preform using the fluoride glassNIPPON TELEGRAPH & TELEPHONE·Filed 1989·Granted Dec 10, 1991·36 cites·28 claims
- 0286US7340116B2Optical switch, optical modulator and wavelength variable filterNIPPON TELEGRAPH & TELEPHONE·Filed 2006·Granted Mar 4, 2008·7 cites·22 claims
- 0378US7492975B2Optical switch, optical modulator and wavelength variable filterNIPPON TELEGRAPH & TELEPHONE·Filed 2004·Granted Feb 17, 2009·14 cites·4 claims
- 0476US7677059B2Tellurite optical fiber and production method thereofNIPPON TELEGRAPH & TELEPHONE·Filed 2004·Granted Mar 16, 2010·16 cites·13 claims
- 0576US6052359ADisk cartridge having a dynamically stable supported member in a discrimination holeTOSHIBA KK·Filed 1997·Granted Apr 18, 2000·30 cites·2 claims
- 0672US6870663B2Wavelength tunable light source and pulse light sourceNIPPON TELEGRAPH & TELEPHONE·Filed 2002·Granted Mar 22, 2005·13 cites·21 claims
- 0770US7110652B2Optical waveguide and method of manufactureNIPPON TELEGRAPH & TELEPHONE·Filed 2005·Granted Sep 19, 2006·2 cites·5 claims
- 0870US6795232B2Wavelength converterNIPPON TELEGRAPH & TELEPHONE·Filed 2002·Granted Sep 21, 2004·12 cites·37 claims
- 0968US7764302B2Electrooptic deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2006·Granted Jul 27, 2010·2 cites·7 claims
- 1068US7356227B2Optical switch, optical modulator and wavelength variable filterNIPPON TELEGRAPH & TELEPHONE·Filed 2006·Granted Apr 8, 2008·3 cites·15 claims
- 1168US6792189B2Optical waveguide and method of manufactureNIPPON TELEGRAPH & TELEPHONE·Filed 2002·Granted Sep 14, 2004·8 cites·9 claims
- 1267US10205296B2Swept light source and method for controlling the sameNIPPON TELEGRAPH & TELEPHONE·Filed 2017·Granted Feb 12, 2019·1 cites·11 claims
- 1365US8648893B2Electrooptic deviceNAKAMURA KOUICHIROU·Filed 2010·Granted Feb 11, 2014·1 cites·5 claims
- 1464US8014061B2Variable-focal length lensNIPPON TELEGRAPH & TELEPHONE·Filed 2008·Granted Sep 6, 2011·2 cites·20 claims
- 1563US6996321B2Optical waveguide and method of manufactureNIPPON TELEGRAPH & TELEPHONE·Filed 2004·Granted Feb 7, 2006·6 cites·5 claims
- 1660US7953309B2Optical fiber and production method thereofNIPPON TELEGRAPH & TELEPHONE·Filed 2008·Granted May 31, 2011·2 cites·18 claims
- 1759US7336854B2Optical switch, optical modulator and wavelength variable filterNIPPON TELEGRAPH & TELEPHONE·Filed 2006·Granted Feb 26, 2008·1 cites·20 claims
- 1855US6181510B1Optical disk apparatus with swingable disk tray holderTOSHIBA KK·Filed 1998·Granted Jan 30, 2001·11 cites·4 claims
- 1953US12332196B2Laser light source and photoelectron microscopeUNIV TOKYO·Filed 2020·Granted Jun 17, 2025·0 cites·13 claims
- 2052US8654167B2Electrooptic deviceNAKAMURA KOUICHIROU·Filed 2012·Granted Feb 18, 2014·0 cites·5 claims
- 2151US8274653B2SpectroscopeNAKAMURA KOICHIRO·Filed 2008·Granted Sep 25, 2012·1 cites·18 claims
- 2250US7177514B2Optical waveguide material and optical waveguideNIPPON TELEGRAPH & TELEPHONE·Filed 2004·Granted Feb 13, 2007·2 cites·2 claims
- 2347US7340147B2Optical waveguide material and optical waveguideNIPPON TELEGRAPH & TELEPHONE·Filed 2006·Granted Mar 4, 2008·0 cites·4 claims
- 2446US5145508AMethod of making fluoride glass using barium β-diketonesNIPPON TELEGRAPH & TELEPHONE·Filed 1991·Granted Sep 8, 1992·9 cites·17 claims
- 2543US7272317B2Optical multiplexing communication system using ultra high speed signal transmissionNIPPON TELEGRAPH & TELEPHONE·Filed 2003·Granted Sep 18, 2007·0 cites·15 claims
- 2642US7859666B2Electric field sensorNIPPON TELEGRAPH & TELEPHONE·Filed 2004·Granted Dec 28, 2010·2 cites·7 claims
- 2741US7591895B2Method and apparatus for producing crystalsNIPPON TELEGRAPH & TELEPHONE·Filed 2005·Granted Sep 22, 2009·0 cites·31 claims
- 2838US2002093895A1Optical disc, disc cartridge and optical disc driveFiled 2002·Application pending·0 cites
- 2937US2006228089A1Variable wavelength optical filterSHIMOKOZONO MAKOTO·Filed 2004·Application pending·0 cites
- 3034US8992683B2Apparatus for producing crystalsSASAURA MASAHIRO·Filed 2005·Granted Mar 31, 2015·0 cites·18 claims
- 3132US7674737B2Optical medium, an optical lens and a prismNIPPON TELEGRAPH & TELEPHONE·Filed 2005·Granted Mar 9, 2010·0 cites·3 claims
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