Assignee
SUMITA OPTICAL GLASS
JP·37 granted patents·5 pending applications·453 citations·filing 1989–2023
Top patents by PatentIndex Score
42 records- 0190US7825575B2Solid-state element device and light-emitting apparatus using sameSUMITA OPTICAL GLASS·Filed 2006·Granted Nov 2, 2010·25 cites·20 claims
- 0290US7277618B2White light-emitting device using fluorescent fiberSUMITA OPTICAL GLASS·Filed 2006·Granted Oct 2, 2007·13 cites·5 claims
- 0387US6333282B1Optical glass for precision moldingSUMITA OPTICAL GLASS·Filed 2000·Granted Dec 25, 2001·48 cites·2 claims
- 0483US5755998AFluorophosphate fluorescent glass capable of exhibiting fluorescence in the visible regionSUMITA OPTICAL GLASS·Filed 1996·Granted May 26, 1998·56 cites·8 claims
- 0582US7505655B2White light-emitting device using fluorescent fiberSUMITA OPTICAL GLASS·Filed 2007·Granted Mar 17, 2009·10 cites·6 claims
- 0680US9376339B2Optical glass, preform for precision press molding, and optical elementSUMITA OPTICAL GLASS·Filed 2015·Granted Jun 28, 2016·3 cites·6 claims
- 0779US9405123B2Optical systemSUMITA OPTICAL GLASS·Filed 2015·Granted Aug 2, 2016·3 cites·13 claims
- 0878US7943540B2Optical glass for precision molding having high refractive indexSUMITA OPTICAL GLASS·Filed 2007·Granted May 17, 2011·5 cites·1 claims
- 0977US5284501AMethod of manufacturing glass optical elementSUMITA OPTICAL GLASS·Filed 1992·Granted Feb 8, 1994·24 cites·2 claims
- 1074US5420080AWavelength up-conversion transparent glass ceramicsSUMITA OPTICAL GLASS·Filed 1994·Granted May 30, 1995·31 cites·2 claims
- 1173US5635109ATb- or eu-containing fluorophosphate fluorescent glassSUMITA OPTICAL GLASS·Filed 1995·Granted Jun 3, 1997·38 cites·2 claims
- 1273US4990468AFluorophosphate optical glassSUMITA OPTICAL GLASS·Filed 1989·Granted Feb 5, 1991·36 cites·6 claims
- 1369US7151064B2Optical glass suitable for mold formingSUMITA OPTICAL GLASS·Filed 2002·Granted Dec 19, 2006·10 cites·1 claims
- 1468US7141525B2Optical glass for precision moldingSUMITA OPTICAL GLASS·Filed 2004·Granted Nov 28, 2006·9 cites·2 claims
- 1568US6784128B2Optical glass for moldingSUMITA OPTICAL GLASS·Filed 2002·Granted Aug 31, 2004·9 cites·7 claims
- 1663US5545595AWavelength up-conversion transparent glass ceramics and a process for the production of the sameSUMITA OPTICAL GLASS·Filed 1995·Granted Aug 13, 1996·25 cites·4 claims
- 1763US5017520AFluorosphosphate optical glassSUMITA OPTICAL GLASS·Filed 1989·Granted May 21, 1991·21 cites·3 claims
- 1863US2025154048A1Optical glass, preform for precision press molding, and optical elementSUMITA OPTICAL GLASS·Filed 2022·Application pending·0 cites
- 1959US7312169B2Optical glass for precision moldingSUMITA OPTICAL GLASS·Filed 2004·Granted Dec 25, 2007·4 cites·2 claims
- 2057US12181700B2Optical fiber illumination deviceSUMITA OPTICAL GLASS·Filed 2020·Granted Dec 31, 2024·0 cites·6 claims
- 2157US7122975B2Filament lamp light quantity control method and filament lamp light quantity control unit and filament lamp light source unitSUMITA OPTICAL GLASS·Filed 2005·Granted Oct 17, 2006·1 cites·12 claims
- 2257US6271160B1Oxide phosphorescent glass capable of exhibiting a long lasting afterglow and photostimulated luminescenceSUMITA OPTICAL GLASS·Filed 1999·Granted Aug 7, 2001·15 cites·3 claims
- 2357US2025250193A1Glass ceramic, manufacturing method thereof, and deviceSUMITA OPTICAL GLASS·Filed 2023·Application pending·0 cites
- 2456US12559413B2Optical glass, preform for precision press molding, and optical elementSUMITA OPTICAL GLASS·Filed 2021·Granted Feb 24, 2026·0 cites·20 claims
- 2553US6123872AOxide phosphorescent glass capable of exhibiting a long lasting after-glow and photostimulated luminescenceSUMITA OPTICAL GLASS·Filed 1998·Granted Sep 26, 2000·17 cites·1 claims
- 2651US6372155B1Oxide glass showing long afterglow and accelerated phosphorescenceSUMITA OPTICAL GLASS·Filed 1999·Granted Apr 16, 2002·14 cites·5 claims
- 2748US12351502B2Optical glass and optical elementSUMITA OPTICAL GLASS·Filed 2017·Granted Jul 8, 2025·0 cites·17 claims
- 2848US2025098943A1Beam-shaping lens, beam-shaping element, light source device for an endoscope, and endoscopeSUMITA OPTICAL GLASS·Filed 2022·Application pending·0 cites
- 2947US2022289619A1X-ray shielding glass and glass componentSUMITA OPTICAL GLASS·Filed 2020·Application pending·0 cites
- 3046US6815911B2Filament lamp light source unit and filament lamp light quantity control methodSUMITA OPTICAL GLASS·Filed 2003·Granted Nov 9, 2004·3 cites·12 claims
- 3146US5472471AProcess for the production of an optical fiber bundle for heat resistance and vacuum resistance by bonding fiber ends with a bonding glassSUMITA OPTICAL GLASS·Filed 1994·Granted Dec 5, 1995·15 cites·5 claims
- 3245US11345597B2Precursor glass of lithium phosphorus complex oxide and method of producing same, method of producing precursor crystallized glass of lithium phosphorus complex oxide, and lithium phosphorus complex oxide powder and method of producing sameSUMITA OPTICAL GLASS·Filed 2017·Granted May 31, 2022·0 cites·7 claims
- 3343US10508053B2Image guide fiberSUMITA OPTICAL GLASS·Filed 2016·Granted Dec 17, 2019·0 cites·5 claims
- 3443US5961883AOxide fluorescent glass capable of exhibiting visible fluorescenceSUMITA OPTICAL GLASS·Filed 1997·Granted Oct 5, 1999·11 cites·1 claims
- 3542US11598947B2Relay optical system for rigid endoscopeSUMITA OPTICAL GLASS·Filed 2019·Granted Mar 7, 2023·0 cites·5 claims
- 3642US2007121684A1Multiple wavelength laser light source using fluorescent fiberSUMITA OPTICAL GLASS·Filed 2006·Application pending·0 cites
- 3741US12473227B2Multicomponent oxide glass, optical element, optical fiber, and method of producing multicomponent oxide glassSUMITA OPTICAL GLASS·Filed 2020·Granted Nov 18, 2025·0 cites·4 claims
- 3841US9376340B2Optical glass, preform for precision press molding, and optical elementSUMITA OPTICAL GLASS·Filed 2015·Granted Jun 28, 2016·0 cites·5 claims
- 3936US10611665B2Method of producing LTP or LATP crystal particleSUMITA OPTICAL GLASS·Filed 2016·Granted Apr 7, 2020·0 cites·3 claims
- 4035USD753857SHelmet-mounted lightSUMITA OPTICAL GLASS·Filed 2014·Granted Apr 12, 2016·4 cites·1 claims
- 4128USD753859SHelmet-mounted lightSUMITA OPTICAL GLASS·Filed 2014·Granted Apr 12, 2016·2 cites·1 claims
- 4225USD753858SHelmet-mounted lightSUMITA OPTICAL GLASS·Filed 2014·Granted Apr 12, 2016·1 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →