Chiba
Japan
73
2024-06-06
53
2026-04-07
These are the the leading inventors for applications assigned to POWDERTECH CO., LTD.:
POWDERTECH CO., LTD. based in Chiba, JP has been assigned the rights to these inventions. The list includes both Pending Applications and Patent Grants:
FERRITE POWDER, FERRITE RESIN COMPOSITE MATERIAL, AND ELECTROMAGNETIC SHIELDING MATERIAL, ELECTRONIC MATERIAL, OR ELECTRONIC COMPONENT
#2 | 2022-10-27 ✅ Patent 12,595,188 granted on 2026-04-07FERRITE POWDER, FERRITE RESIN COMPOSITE MATERIAL, AND ELECTROMAGNETIC SHIELDING MATERIAL, ELECTRONIC MATERIAL, OR ELECTRONIC COMPONENT
#3 | 2022-05-26 ✅ Patent 11,572,926 granted on 2023-02-07Iron oxide powder for brake friction material
#4 | 2020-08-06 ✅ Patent 11,651,881 granted on 2023-05-16Mn—Zn ferrite particles, resin molded body, soft magnetic mixed powder, and magnetic core
#5 | 2020-07-30 ✅ Patent 11,112,716 granted on 2021-09-07Carrier core material for electrophotographic developer and method for producing the same, and carrier for electrophotographic developer and developer containing said carrier core material
#6 | 2020-05-07 ✅ Patent 11,521,768 granted on 2022-12-06Ferrite powder, resin composition, and molded body
#7 | 2020-01-02 ✅ Patent 11,359,689 granted on 2022-06-14Iron oxide powder for brake friction material
#8 | 2019-11-07 ✅ Patent 11,032,955 granted on 2021-06-08Ferrite powder, resin composition, electromagnetic shielding material, electronic circuit substrate, electronic circuit component, and electronic device housing
#9 | 2019-11-07 ✅ Patent 10,825,593 granted on 2020-11-03Ni—Zn—Cu ferrite particle, resin composition, and resin molding
#10 | 2019-11-07 ✅ Patent 10,919,779 granted on 2021-02-16Iron oxide powder for brake friction material
#11 | 2019-10-03 ✅ Patent 11,542,174 granted on 2023-01-03Ferrite particles, resin compositions and electromagnetic wave shielding material
#12 | 2019-05-30 ✅ Patent 11,150,569 granted on 2021-10-19Ferrite carrier core material for electrophotographic developer, carrier for electrophotographic developer, and developer
#13 | 2019-05-30 ✅ Patent 11,014,826 granted on 2021-05-25Ferrite particles, resin composition and resin film
#14 | 2019-03-21 ✅ Patent 10,775,711 granted on 2020-09-15Ferrite carrier core material for electrophotographic developer, ferrite carrier for electrophotographic developer, electrophotographic developer, and method for manufacturing ferrite carrier core material for electrophotographic developer
#15 | 2019-03-14 ✅ Patent 10,564,561 granted on 2020-02-18Ferrite carrier core material for electrophotographic developer, ferrite carrier for electrophotographic developer, electrophotographic developer, and method for manufacturing ferrite carrier core material for electrophotographic developer
#16 | 2018-06-28 ✅ Patent 10,501,333 granted on 2019-12-10Spherical ferrite powder, resin compound including spherical ferrite powder, and molded product made of resin compound
#17 | 2018-03-15 ✅ Patent 10,248,039 granted on 2019-04-02Carrier, electrophotographic developer, and method of manufacturing carrier
#18 | 2018-01-11 ✅ Patent 10,585,369 granted on 2020-03-10Ferrite particle having outer shell structure
#19 | 2018-01-11HEXAGONAL PLATE SHAPED FERRITE POWDER, MANUFACTURING METHOD THEREOF, AND RESIN COMPOUND AND MOLDED PRODUCT USING THE FERRITE POWDER
#20 | 2018-01-11 ✅ Patent 10,258,970 granted on 2019-04-16Ferrite particles provided with outer shell structure for catalyst supporting medium
#21 | 2018-01-11 ✅ Patent 10,603,614 granted on 2020-03-31Ferrite particles having outer shell structure used for filtering medium
#22 | 2017-12-28MAGNETIC FILLER
#23 | 2017-12-07PLATE SHAPED FERRITE PARTICLES HAVING METALLIC LUSTER FOR PIGMENT
#24 | 2017-10-19 ✅ Patent 10,593,454 granted on 2020-03-17Spherical ferrite particles in nano-size and method of manufacturing same
#25 | 2016-07-28 ✅ Patent 10,036,982 granted on 2018-07-31Carrier and electrophotographic developer using the carrier
#26 | 2016-03-10 ✅ Patent 9,372,426 granted on 2016-06-21Ferrite particle having outer shell structure, ferrite carrier core material for electrophotographic developer, and electrophotographic developer
#27 | 2016-02-11COMPOSITE MAGNETIC POWDER FOR NOISE SUPPRESSION
#28 | 2014-10-02 ✅ Patent 9,329,515 granted on 2016-05-03Resin-coated carrier for electrophotographic developer and electrophotographic developer using the resin-coated carrier
#29 | 2014-09-25 ✅ Patent 9,201,328 granted on 2015-12-01Core material for resin-filled ferrite carrier and ferrite carrier for electrophotographic developer, and electrophotographic developer using the ferrite carrier
#30 | 2013-07-18 ✅ Patent 9,201,329 granted on 2015-12-01Porous ferrite core material for electrophotographic developer, resin-coated ferrite carrier and electrophotographic developer using the ferrite carrier
#31 | 2013-07-04 ✅ Patent 9,081,318 granted on 2015-07-14Ferrite carrier core material and ferrite carrier for electrophotographic developer, methods for manufacturing these, and electrographic developer using the ferrite carrier
#32 | 2012-10-04 ✅ Patent 8,541,155 granted on 2013-09-24Resin-coated carrier for electrophotographic developer, and electrophotographic developer
#33 | 2012-10-04 ✅ Patent 9,557,682 granted on 2017-01-31Resin-coated carrier for electrophotographic developer and electrophotographic developer using the resin-coated carrier
#34 | 2012-01-05 ✅ Patent 8,465,898 granted on 2013-06-18Ferrite carrier core material and ferrite carrier for electrophotographic developer, and electrophotographic developer using the ferrite carrier
#35 | 2011-10-06FERRITE CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPER, FERRITE CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER AND METHODS FOR PRODUCING THE FERRITE CARRIER CORE MATERIAL AND THE FERRITE CARRIER, AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE FERRITE CARRIER
#36 | 2011-10-06RESIN-COATED CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER, AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE RESIN-COATED CARRIER
#37 | 2011-09-01 ✅ Patent 8,535,867 granted on 2013-09-17Ferrite core material and ferrite carrier for electrophotographic developer, and electrophotographic developer using the ferrite carrier
#38 | 2011-08-11 ✅ Patent 8,475,988 granted on 2013-07-02Resin-filled ferrite carrier core material for electrophotographic developer, ferrite carrier and electrophotographic developer using the ferrite carrier
#39 | 2011-07-28CORE MATERIAL OF FERRITE CARRIER AND FERRITE CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER, AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE FERRITE CARRIER
#40 | 2011-06-02 ✅ Patent 8,728,699 granted on 2014-05-20Porous ferrite core material for electrophotographic developer, resin-filled ferrite carrier and electrophotographic developer using the ferrite carrier
#41 | 2011-04-28 ✅ Patent 8,415,167 granted on 2013-04-09Oxygen detector and method for manufacturing oxygen detector
#42 | 2011-01-20CORE MATERIAL OF CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER AND METHOD FOR MANUFACTURING THE CORE MATERIAL, CARRIER AND METHOD FOR MANUFACTURING THE CARRIER, AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE CARRIER
#43 | 2010-09-30RESIN-FILLED FERRITE CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE FERRITE CARRIER
#44 | 2010-09-30CARRIER COATED WITH RESIN FOR ELECTROPHOTOGRAPHIC DEVELOPER AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE CARRIER COATED WITH RESIN
#45 | 2010-09-16CARRIER FOR TWO-COMPONENT ELECTROPHOTOGRAPHIC DEVELOPER AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE CARRIER
#46 | 2010-08-05 ✅ Patent 8,895,218 granted on 2014-11-25Carrier core material and carrier for electrophotographic developer and process for producing the same, and electrophotographic developer using the carrier
#47 | 2010-05-06INORGANIC PARTICLE-CONTAINING EMULSION AND MANUFACTURING METHOD OF A PARTICLE BY USING THE INORGANIC PARTICLE-CONTAINING EMULSION
#48 | 2010-03-04RESIN-FILLED CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE RESIN-FILLED CARRIER
#49 | 2009-12-03CARRIER FOR AN ELECTROPHOTOGRAPHIC DEVELOPER, AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE CARRIER
#50 | 2009-10-22 ✅ Patent 8,168,364 granted on 2012-05-01Resin-filled carrier for electrophotographic developer, and electrophotographic developer using the resin-filled carrier
#51 | 2009-10-01 ✅ Patent 7,862,975 granted on 2011-01-04Carrier core material for an electrophotographic developer, carrier, and electrophotographic developer using the carrier
#52 | 2009-10-01 ✅ Patent 8,039,190 granted on 2011-10-18Carrier core material for electrophotographic developer, carrier, and electrophotographic developer using the carrier
#53 | 2009-10-01CARRIER PARTICLES FOR FORMING WIRING CIRCUIT PATTERN AND DEVELOPER
#54 | 2009-10-01FERRITE PARTICLES AND PRODUCTION METHOD THEREOF
#55 | 2009-09-24RESIN-FILLED CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER, AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE RESIN-FILLED CARRIER
#56 | 2009-09-10 ✅ Patent 7,921,798 granted on 2011-04-12Oxygen detector sheet and oxygen detecting agent using the same, and method for manufacturing oxygen detector sheet
#57 | 2009-08-06 ✅ Patent 7,879,522 granted on 2011-02-01Carrier core material for electrophotographic developer, carrier and electrophotographic developer using the carrier
#58 | 2009-07-09 ✅ Patent 8,431,311 granted on 2013-04-30Resin-filled carrier for electrophotographic developer, and electrophotographic developer using the resin-filled carrier
#59 | 2009-07-02ELECTROPHOTOGRAPHIC DEVELOPER CARRIER AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE SAME CARRIER
#60 | 2009-06-30 ✅ Patent 7,553,597 granted on 2009-06-30Carrier core material, coated carrier, and two-component developing agent for electrophotography
#61 | 2009-05-21 ✅ Patent 7,824,833 granted on 2010-11-02Resin-coated ferrite carrier for electrophotographic developer, its production method, and electrophotographic developer using the resin-coated ferrite carrier
#62 | 2008-10-02 ✅ Patent 8,247,148 granted on 2012-08-21Resin-coated ferrite carrier for electrophotographic developer and electrophotographic developer using the resin-coated ferrite carrier
#63 | 2008-10-02 ✅ Patent 8,187,781 granted on 2012-05-29Resin-filled ferrite carrier for electrophotographic developer, production method thereof and electrophotographic developer using the ferrite carrier
#64 | 2008-10-02 ✅ Patent 7,880,483 granted on 2011-02-01Method for inspecting quality of core material for electrophotographic ferrite carrier
#65 | 2008-08-28 ✅ Patent 7,897,317 granted on 2011-03-01Method for producing core material of electrophotographic ferrite carrier and resin-coated ferrite carrier
#66 | 2008-08-21RESIN-FILLED FERRITE CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE FERRITE CARRIER
#67 | 2007-10-30 ✅ Patent 7,288,355 granted on 2007-10-30Carrier for electrophotography developers, developer prepared by using the carrier and method for forming image
#68 | 2007-07-05 ✅ Patent 8,092,971 granted on 2012-01-10Resin-coated carrier for electrophotographic developer and process for producing the same, and electrophotographic developer comprising the resin-coated carrier
#69 | 2006-11-30 ✅ Patent 8,628,905 granted on 2014-01-14Ferrite core material for resin-filled type carrier, resin-filled type carrier, and electrophotographic developer using the carrier
#70 | 2006-06-08 ✅ Patent 7,476,483 granted on 2009-01-13Carrier for electrophotographic developer and two-component electrophotographic developer
#71 | 2006-06-08 ✅ Patent 7,521,163 granted on 2009-04-21Resin-coated ferrite carrier for electrophotographic developer, its production method, and electrophotographic developer using the resin-coated ferrite carrier
#72 | 2006-01-05 ✅ Patent 7,442,483 granted on 2008-10-28Ferrite carrier for electrophotographic developer and method for preparing the same, and electrophotographic developer using the same
#73 | 2005-06-14 ✅ Patent 6,905,806 granted on 2005-06-14Dry two-component type developer for electrophotography
Also check out POWDERTECH CO., LTD.'s (Chiba, Japan) applicant profile with 23 patent applications submitted.
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