Assignee
DOWA ELECTRONICS MATERIALS CO LTD
JP·196 granted patents·94 pending applications·515 citations·filing 2002–2025
Top patents by PatentIndex Score
290 records- 0196US7476337B2Phosphor and manufacturing method for the same, and light sourceDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted Jan 13, 2009·40 cites·14 claims
- 0295US10919778B2Method for producing iron-based oxide magnetic particle powderDOWA ELECTRONICS MATERIALS CO LTD·Filed 2016·Granted Feb 16, 2021·10 cites·7 claims
- 0395US7524437B2Phosphor and manufacturing method of the same, and light emitting device using the phosphorDOWA ELECTRONICS MATERIALS CO LTD·Filed 2006·Granted Apr 28, 2009·38 cites·31 claims
- 0495US7476338B2Phosphor and manufacturing method for the same, and light sourceDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted Jan 13, 2009·33 cites·25 claims
- 0594US7887718B2Phosphor and manufacturing method therefore, and light emission device using the phosphorDOWA ELECTRONICS MATERIALS CO LTD·Filed 2006·Granted Feb 15, 2011·25 cites·32 claims
- 0693US10504548B2Iron-based oxide magnetic particle powder and method for producing iron-based oxide magnetic particle powderDOWA ELECTRONICS MATERIALS CO LTD·Filed 2015·Granted Dec 10, 2019·5 cites·17 claims
- 0791US11205739B2Semiconductor light-emitting device and method of manufacturing the sameDOWA ELECTRONICS MATERIALS CO LTD·Filed 2017·Granted Dec 21, 2021·4 cites·15 claims
- 0891US9984788B2Silver powder and method for producing sameDOWA ELECTRONICS MATERIALS CO LTD·Filed 2015·Granted May 29, 2018·4 cites·23 claims
- 0991US7443094B2Phosphor and manufacturing method of the same, and light emitting device using the phosphorDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted Oct 28, 2008·22 cites·16 claims
- 1090US10622127B2Iron-based oxide magnetic particle powder, method for producing same, coating material, and magnetic recording mediumDOWA ELECTRONICS MATERIALS CO LTD·Filed 2015·Granted Apr 14, 2020·13 cites·12 claims
- 1189US10147842B2Method of producing III nitride semiconductor light-emitting deviceDOWA ELECTRONICS MATERIALS CO LTD·Filed 2015·Granted Dec 4, 2018·5 cites·10 claims
- 1289US7514860B2Phosphor mixture and light emitting deviceDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted Apr 7, 2009·18 cites·19 claims
- 1389US7432647B2Light source having phosphor including divalent trivalent and tetravalent elementsDOWA ELECTRONICS MATERIALS CO LTD·Filed 2004·Granted Oct 7, 2008·35 cites·10 claims
- 1488US11401170B2Iron based oxide magnetic powder and method for producing sameDOWA ELECTRONICS MATERIALS CO LTD·Filed 2019·Granted Aug 2, 2022·2 cites·11 claims
- 1588US8742396B2III nitride epitaxial substrate and deep ultraviolet light emitting device using the sameDOWA ELECTRONICS MATERIALS CO LTD·Filed 2013·Granted Jun 3, 2014·12 cites·6 claims
- 1688US8344356B2Semiconductor material, method of making the same, and semiconductor deviceDOWA ELECTRONICS MATERIALS CO LTD·Filed 2008·Granted Jan 1, 2013·16 cites·11 claims
- 1788US7445730B2Phosphor and manufacturing method of the same, and light emitting device using the phosphorDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted Nov 4, 2008·16 cites·22 claims
- 1887US11692241B2Copper powder and method for producing sameDOWA ELECTRONICS MATERIALS CO LTD·Filed 2017·Granted Jul 4, 2023·2 cites·9 claims
- 1987US11302843B2Deep ultraviolet light-emitting device and method of manufacturing sameDOWA ELECTRONICS MATERIALS CO LTD·Filed 2018·Granted Apr 12, 2022·2 cites·10 claims
- 2087US11009629B2Anti-reflection film and deep ultraviolet light-emitting deviceDOWA ELECTRONICS MATERIALS CO LTD·Filed 2017·Granted May 18, 2021·2 cites·15 claims
- 2187USD778849SLight emitting diode chipDOWA ELECTRONICS MATERIALS CO LTD·Filed 2016·Granted Feb 14, 2017·28 cites·1 claims
- 2287US8735938B2Semiconductor device and method of producing the sameDOWA ELECTRONICS MATERIALS CO LTD·Filed 2013·Granted May 27, 2014·7 cites·12 claims
- 2386US10193016B2III-nitride semiconductor light emitting device and method of producing the sameDOWA ELECTRONICS MATERIALS CO LTD·Filed 2016·Granted Jan 29, 2019·5 cites·19 claims
- 2486US7776442B2Particulate powder of silver and method of manufacturing sameDOWA ELECTRONICS MATERIALS CO LTD·Filed 2006·Granted Aug 17, 2010·10 cites·7 claims
- 2584US11264155B2Epsilon-type iron oxide magnetic particles and method for producing the same, magnetic powder, magnetic coating material and magnetic recording medium containing magnetic particlesDOWA ELECTRONICS MATERIALS CO LTD·Filed 2017·Granted Mar 1, 2022·2 cites·11 claims
- 2683US11804313B2Silver powder, production method thereof, and conductive pasteDOWA ELECTRONICS MATERIALS CO LTD·Filed 2019·Granted Oct 31, 2023·2 cites·5 claims
- 2783US7812516B2Light-emitting device and manufacturing method thereofDOWA ELECTRONICS MATERIALS CO LTD·Filed 2007·Granted Oct 12, 2010·11 cites·6 claims
- 2883US7771872B2Silver oxide powder for alkaline battery and method of producing the sameDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted Aug 10, 2010·5 cites·5 claims
- 2983US7477009B2Phosphor mixture and light emitting deviceDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted Jan 13, 2009·11 cites·19 claims
- 3083US2024416418A1Method of manufacturing silicon-oxide-coated soft magnetic powderDOWA ELECTRONICS MATERIALS CO LTD·Filed 2024·Application pending·0 cites
- 3182US7476335B2Phosphor and manufacturing method therefore, and light source using the phosphorDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted Jan 13, 2009·7 cites·20 claims
- 3281US11056257B2Magnetic compound and antennaDOWA ELECTRONICS MATERIALS CO LTD·Filed 2016·Granted Jul 6, 2021·1 cites·5 claims
- 3381US10283671B2Method of producing III nitride semiconductor light-emitting deviceDOWA ELECTRONICS MATERIALS CO LTD·Filed 2018·Granted May 7, 2019·2 cites·3 claims
- 3481US9732236B2Conductive paste and method for producing conductive film using sameDOWA ELECTRONICS MATERIALS CO LTD·Filed 2014·Granted Aug 15, 2017·3 cites·8 claims
- 3581US2025387831A1Silver flake powder and production method thereof, and electrically conductive pasteDOWA ELECTRONICS MATERIALS CO LTD·Filed 2025·Application pending·0 cites
- 3680US12051523B2Silver powder, production method thereof, and conductive pasteDOWA ELECTRONICS MATERIALS CO LTD·Filed 2023·Granted Jul 30, 2024·0 cites·3 claims
- 3780US10460851B2Silver-tellurium-coated glass powder, production method for silver-tellurium-coated glass powder, conductive paste, and production method for conductive pasteDOWA ELECTRONICS MATERIALS CO LTD·Filed 2017·Granted Oct 29, 2019·2 cites·12 claims
- 3880US7491257B2Silver particle powder and method of manufacturing sameDOWA ELECTRONICS MATERIALS CO LTD·Filed 2006·Granted Feb 17, 2009·5 cites·5 claims
- 3979US11413685B2Silver powder mixture, method for producing same, and conductive pasteDOWA ELECTRONICS MATERIALS CO LTD·Filed 2018·Granted Aug 16, 2022·2 cites·7 claims
- 4078US12049684B2Copper powder and method for producing sameDOWA ELECTRONICS MATERIALS CO LTD·Filed 2023·Granted Jul 30, 2024·0 cites·7 claims
- 4178US7455714B2Powder of fine alloy particles having an uneven surface and method of manufacturing the powderDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted Nov 25, 2008·5 cites·3 claims
- 4278US7455712B2Face-centered cubic structure alloy particles and method of manufacturing sameDOWA ELECTRONICS MATERIALS CO LTD·Filed 2005·Granted Nov 25, 2008·5 cites·10 claims
- 4377US11097956B2Surface-modified iron-based oxide magnetic particle powderDOWA ELECTRONICS MATERIALS CO LTD·Filed 2016·Granted Aug 24, 2021·1 cites·3 claims
- 4477US7618475B2Metal powder for electrically conductive paste and electrically conductive pasteDOWA ELECTRONICS MATERIALS CO LTD·Filed 2006·Granted Nov 17, 2009·8 cites·7 claims
- 4576US8968824B2Method for producing silver conductive filmDOWA ELECTRONICS MATERIALS CO LTD·Filed 2013·Granted Mar 3, 2015·2 cites·12 claims
- 4675US8048338B2Phosphor, phosphor sheet, and manufacturing method therefore, and light emission device using the phosphorDOWA ELECTRONICS MATERIALS CO LTD·Filed 2006·Granted Nov 1, 2011·6 cites·33 claims
- 4774US12507504B2Group III nitride semiconductor light-emitting element and method of manufacturing sameDOWA ELECTRONICS MATERIALS CO LTD·Filed 2021·Granted Dec 23, 2025·0 cites·12 claims
- 4874US11407030B2Silver powder and method for producing sameDOWA ELECTRONICS MATERIALS CO LTD·Filed 2020·Granted Aug 9, 2022·0 cites·6 claims
- 4974US9882088B2III nitride semiconductor light-emitting deviceDOWA ELECTRONICS MATERIALS CO LTD·Filed 2016·Granted Jan 30, 2018·2 cites·5 claims
- 5073US10328534B2Bonding material and bonding method using sameDOWA ELECTRONICS MATERIALS CO LTD·Filed 2014·Granted Jun 25, 2019·2 cites·15 claims
Showing the top 50 of 290 patent records by PatentIndex Score.
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