DOWA ELECTRONICS MATERIALS CO., LTD.

SILVER POWDER AND CONDUCTIVE PASTE

#2 | 2025-12-25

US20250387831A1

SILVER FLAKE POWDER AND PRODUCTION METHOD THEREOF, AND ELECTRICALLY CONDUCTIVE PASTE

#3 | 2025-11-06

US20250339897A1

METHOD OF PRODUCING SILVER POWDER

#4 | 2025-08-28 ✅ Patent 12,528,122 granted on 2026-01-20

US20250269429A1

METHOD OF PRODUCING SILVER POWDER, SILVER POWDER, AND CONDUCTIVE PASTE

#5 | 2025-05-29

US20250176320A1

DEEP ULTRAVIOLET LIGHT-EMITTING ELEMENT

#6 | 2025-05-29

US20250170639A1

CUBOID SILVER POWDER, METHOD OF PRODUCING SAME, AND CONDUCTIVE PASTE

#7 | 2025-05-22

US20250167251A1

PEROVSKITE-TYPE COMPOSITE OXIDE POWDER

#8 | 2025-02-27

US20250072194A1

LIGHT-EMITTING ELEMENT AND METHOD OF PRODUCING LIGHT-EMITTING ELEMENT

#9 | 2025-02-13

US20250050415A1

SILVER POWDER, MIXED SILVER POWDER, AND CONDUCTIVE PASTE, AND METHOD FOR MANUFACTURING SILVER POWDER AND MIXED SILVER POWDER

#10 | 2025-02-06 ✅ Patent 12,390,854 granted on 2025-08-19

US20250041936A1

SILVER POWDER, METHOD OF PRODUCING SILVER POWDER, AND CONDUCTIVE PASTE

#11 | 2024-08-22 ✅ Patent 12,194,541 granted on 2025-01-14

US20240278325A1

Method for producing silver powder

#12 | 2024-08-08

US20240266552A1

PEROVSKITE-TYPE COMPOSITE OXIDE POWDER AND AIR ELECTRODE FOR SOLID OXIDE FUEL CELL AND SOLID OXIDE FUEL CELL USING THE SAME

#13 | 2024-07-11 ✅ Patent 12,635,290 granted on 2026-05-19

US20240234625A1

LIGHT-EMITTING ELEMENT AND METHOD OF MANUFACTURING THE SAME

#14 | 2024-06-20

US20240201612A1

CARRIER CORE MATERIAL AND ELECTROPHOTOGRAPHIC DEVELOPMENT CARRIER USING SAME AND ELECTROPHOTOGRAPHIC DEVELOPER

#15 | 2024-05-16 ✅ Patent 12,427,570 granted on 2025-09-30

US20240157436A1

SILVER FLAKE POWDER AND PRODUCTION METHOD THEREOF, AND ELECTRICALLY CONDUCTIVE PASTE

#16 | 2024-04-25 ✅ Patent 12,617,013 granted on 2026-05-05

US20240131580A1

SILVER POWDER AND METHOD OF PRODUCING SAME

#17 | 2023-12-07 ✅ Patent 12,051,523 granted on 2024-07-30

US20230395280A1

Silver powder, production method thereof, and conductive paste

#18 | 2023-12-07 ✅ Patent 12,467,160 granted on 2025-11-11

US20230392291A1

GaAs WAFER AND METHOD OF PRODUCING GaAs INGOT

#19 | 2023-10-05

US20230311249A1

METAL PASTE FOR BONDING AND BONDING METHOD

#20 | 2023-09-07 ✅ Patent 12,049,684 granted on 2024-07-30

US20230279523A1

Copper powder and method for producing same

#21 | 2023-07-06

US20230216065A1

PEROVSKITE-TYPE COMPOSITE OXIDE POWDER

#22 | 2023-06-22 ✅ Patent 11,866,346 granted on 2024-01-09

US20230197972A1

Composite oxide powder

#23 | 2023-05-25 ✅ Patent 11,819,914 granted on 2023-11-21

US20230159376A1

Silver powder, method for producing the same, and conductive paste

#24 | 2023-05-18 ✅ Patent 12,125,702 granted on 2024-10-22

US20230155061A1

Semiconductor light-emitting element and method of producing the same

#25 | 2023-04-13 ✅ Patent 11,637,220 granted on 2023-04-25

US20230114703A1

Semiconductor light-emitting element

#26 | 2023-03-16 ✅ Patent 12,300,410 granted on 2025-05-13

US20230081863A1

Hexagonal ferrite magnetic powder and method for producing same

#27 | 2023-03-16 ✅ Patent 11,996,496 granted on 2024-05-28

US20230079138A1

Semiconductor light-emitting device

#28 | 2023-03-09 ✅ Patent 12,296,382 granted on 2025-05-13

US20230073837A1

Method for producing silver powder

#29 | 2023-02-16 ✅ Patent 12,633,541 granted on 2026-05-19

US20230051009A1

LITHIUM-CONTAINING OXIDE PRECURSOR SOLUTION FOR COATING ELECTRODE ACTIVE MATERIAL, AND METHOD FOR PRODUCING THE SAME

#30 | 2023-02-09

US20230045543A1

COATED ACTIVE MATERIAL AND METHOD FOR PRODUCING THE SAME

#31 | 2023-02-09 ✅ Patent 12,349,473 granted on 2025-07-01

US20230040765A1

ULTRAVIOLET LIGHT RECEIVING DEVICE

#32 | 2022-12-22 ✅ Patent 12,336,335 granted on 2025-06-17

US20220406967A1

LIGHT-EMITTING ELEMENT AND METHOD OF PRODUCING THE SAME

#33 | 2022-12-08 ✅ Patent 12,121,965 granted on 2024-10-22

US20220392676A1

Silicon-oxide-coated soft magnetic powder, and method for manufacturing same

#34 | 2022-12-08

US20220390874A1

CARRIER CORE MATERIAL, AND ELECTROPHOTOGRAPHIC DEVELOPMENT CARRIER AND ELECTROPHOTOGRAPHIC DEVELOPER USING SAME

#35 | 2022-11-17 ✅ Patent 12,433,066 granted on 2025-09-30

US20220367749A1

SEMICONDUCTOR OPTICAL DEVICE AND METHOD OF PRODUCING THE SAME

#36 | 2022-09-15 ✅ Patent 12,113,155 granted on 2024-10-08

US20220293825A1

Method of manufacturing optical semiconductor device and optical semiconductor device

#37 | 2022-08-18 ✅ Patent 12,198,829 granted on 2025-01-14

US20220258230A1

Silver powder and method for producing same

#38 | 2022-08-04 ✅ Patent 12,646,635 granted on 2026-06-02

US20220243086A1

SILVER POWDER AND METHOD FOR PRODUCING SAME

#39 | 2022-07-21 ✅ Patent 11,502,294 granted on 2022-11-15

US20220231287A1

Solution and method for producing the same, and a method for producing active material, for secondary battery

#40 | 2022-06-16 ✅ Patent 12,426,409 granted on 2025-09-23

US20220190199A1

POINT SOURCE TYPE LIGHT-EMITTING DIODE AND MANUFACTURING METHOD THEREOF

#41 | 2022-05-12

US20220148775A1

MAGNETOPLUMBITE-TYPE HEXAGONAL CRYSTAL FERRITE MAGNETIC POWDER AND METHOD FOR PRODUCING SAME

#42 | 2022-04-21 ✅ Patent 12,402,448 granted on 2025-08-26

US20220123177A1

METHOD OF PRODUCING REFLECTIVE ELECTRODE FOR DEEP ULTRAVIOLET LIGHT-EMITTING ELEMENT, METHOD OF PRODUCING DEEP ULTRAVIOLET LIGHT-EMITTING ELEMENT, AND DEEP ULTRAVIOLET LIGHT-EMITTING ELEMENT

#43 | 2022-02-24 ✅ Patent 11,888,090 granted on 2024-01-30

US20220059721A1

Semiconductor light-emitting element and method of producing semiconductor light-emitting element

#44 | 2022-02-10 ✅ Patent 12,268,038 granted on 2025-04-01

US20220045239A1

Group III nitride semiconductor light emitting element and method of manufacturing the same

#45 | 2022-01-27 ✅ Patent 11,804,313 granted on 2023-10-31

US20220023939A1

Silver powder, production method thereof, and conductive paste

#46 | 2022-01-06

US20220005636A1

SOFT MAGNETIC POWDER, METHOD FOR PERFORMING HEAT TREATMENT OF SOFT MAGNETIC POWDER, SOFT MAGNETIC MATERIAL, DUST CORE, AND METHOD FOR PRODUCTION OF DUST CORE

#47 | 2021-12-16 ✅ Patent 11,984,535 granted on 2024-05-14

US20210391502A1

III-nitride semiconductor light-emitting device comprising barrier layers and well layers and method of producing the same

#48 | 2021-11-18 ✅ Patent 11,804,567 granted on 2023-10-31

US20210359159A1

III-nitride semiconductor light-emitting device and method of producing the same

#49 | 2021-09-30 ✅ Patent 11,401,170 granted on 2022-08-02

US20210300779A1

Iron based oxide magnetic powder and method for producing same

#50 | 2021-09-02 ✅ Patent 11,548,068 granted on 2023-01-10

US20210268583A1

Method of producing spherical silver powder

#51 | 2021-06-24 ✅ Patent 12,507,504 granted on 2025-12-23

US20210193874A1

GROUP III NITRIDE SEMICONDUCTOR LIGHT-EMITTING ELEMENT AND METHOD OF MANUFACTURING SAME

#52 | 2021-06-03 ✅ Patent 11,251,338 granted on 2022-02-15

US20210167250A1

Deep ultraviolet light-emitting element

#53 | 2021-06-03 ✅ Patent 11,515,448 granted on 2022-11-29

US20210167249A1

Semiconductor light-emitting element and method of manufacturing the same

#54 | 2021-06-03 ✅ Patent 11,697,863 granted on 2023-07-11

US20210162501A1

Spherical silver powder and method for producing same

#55 | 2021-06-03 ✅ Patent 11,376,659 granted on 2022-07-05

US20210162495A1

Spherical silver powder

#56 | 2021-05-06 ✅ Patent 11,556,070 granted on 2023-01-17

US20210132520A1

Carrier core material and electrophotographic development carrier using same and electrophotographic developer

#57 | 2021-03-18 ✅ Patent 11,407,030 granted on 2022-08-09

US20210078081A1

Silver powder and method for producing same

#58 | 2021-03-04 ✅ Patent 11,413,685 granted on 2022-08-16

US20210060655A1

Silver powder mixture, method for producing same, and conductive paste

#59 | 2021-02-18 ✅ Patent 12,057,260 granted on 2024-08-06

US20210050132A1

Silicon oxide-coated iron powder, method for producing the same, molded body for inductor using the same, and inductor

#60 | 2021-02-18

US20210046549A1

SOFT MAGNETIC POWDER, METHOD FOR PRODUCING Fe POWDER OR Fe-CONTAINING ALLOY POWDER, SOFT MAGNETIC MATERIAL, AND METHOD FOR PRODUCING POWDER MAGNETIC CORE

#61 | 2021-01-21 ✅ Patent 11,894,502 granted on 2024-02-06

US20210020814A1

Method of manufacturing semiconductor optical device and intermediate article of semiconductor optical device

#62 | 2021-01-14

US20210012936A1

MAGNETIC MATERIAL, METHOD FOR PRODUCING THE SAME, AND ELECTROMAGNETIC WAVE ABSORBING SHEET

#63 | 2020-12-03 ✅ Patent 11,508,875 granted on 2022-11-22

US20200381589A1

Semiconductor light-emitting device and method of manufacturing the same

#64 | 2020-10-08 ✅ Patent 11,227,702 granted on 2022-01-18

US20200321139A1

Fine silver particle dispersion

#65 | 2020-09-10 ✅ Patent 11,107,952 granted on 2021-08-31

US20200287087A1

Group III nitride semiconductor light emitting element and method of manufacturing the same

#66 | 2020-07-30 ✅ Patent 11,420,256 granted on 2022-08-23

US20200238388A1

Silver powder and method for producing same

#67 | 2020-07-23 ✅ Patent 11,302,843 granted on 2022-04-12

US20200235260A1

Deep ultraviolet light-emitting device and method of manufacturing same

#68 | 2020-07-16 ✅ Patent 11,417,793 granted on 2022-08-16

US20200227585A1

Method of manufacturing semiconductor optical device and semiconductor optical device

#69 | 2020-06-11 ✅ Patent 11,404,190 granted on 2022-08-02

US20200185135A1

Hexagonal ferrite magnetic powder

#70 | 2020-05-21 ✅ Patent 11,894,171 granted on 2024-02-06

US20200161035A1

Magnetic powder for magnetic recording medium

#71 | 2020-04-23 ✅ Patent 11,009,629 granted on 2021-05-18

US20200124770A1

Anti-reflection film and deep ultraviolet light-emitting device

#72 | 2020-04-23 ✅ Patent 11,692,241 granted on 2023-07-04

US20200122236A1

Copper powder and method for producing same

#73 | 2020-04-16 ✅ Patent 11,270,810 granted on 2022-03-08

US20200118703A1

Electrically conductive paste

#74 | 2020-03-26

US20200094318A1

BONDING MATERIAL AND BONDING METHOD EMPLOYING SAME

#75 | 2020-01-16 ✅ Patent 11,205,739 granted on 2021-12-21

US20200020828A1

Semiconductor light-emitting device and method of manufacturing the same

#76 | 2020-01-02 ✅ Patent 11,024,769 granted on 2021-06-01

US20200006599A1

Group III nitride semiconductor light-emitting element and method of manufacturing same

#77 | 2019-12-26 ✅ Patent 11,201,261 granted on 2021-12-14

US20190393381A1

Deep ultraviolet light emitting element and method of manufacturing the same

#78 | 2019-12-26 ✅ Patent 10,915,034 granted on 2021-02-09

US20190391506A1

Carrier core material and electrophotographic carrier using same and electrophotographic developer

#79 | 2019-09-19 ✅ Patent 12,048,964 granted on 2024-07-30

US20190283129A1

Bonding material and bonding method using same

#80 | 2019-09-19 ✅ Patent 10,758,977 granted on 2020-09-01

US20190283128A1

Silver nanowires and method for producing same, and silver nanowire ink and transparent conductive film

#81 | 2019-09-05 ✅ Patent 11,231,414 granted on 2022-01-25

US20190271694A1

Magnetic composite particles, method for manufacturing the same, and immunoassay particles

#82 | 2019-08-22 ✅ Patent 11,081,253 granted on 2021-08-03

US20190259510A1

Silver particle dispersing solution, method for producing same, and method for producing conductive film using silver particle dispersing solution

#83 | 2019-08-15 ✅ Patent 10,807,161 granted on 2020-10-20

US20190247920A1

Silver powder, method for producing same, and hydrophilic conductive paste

#84 | 2019-07-25 ✅ Patent 11,228,030 granted on 2022-01-18

US20190229333A1

Solution and method for producing the same, and a method for producing active material for secondary battery

#85 | 2019-07-25 ✅ Patent 11,264,155 granted on 2022-03-01

US20190228889A1