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Tetsuya KAWAHITO
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Iron based oxide magnetic powder and method for producing same
Patent number
11,401,170
Issue date
Aug 2, 2022
Dowa Electronics Materials Co., Ltd.
Shin-ichi Ohkoshi
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Epsilon-type iron oxide magnetic particles and method for producing...
Patent number
11,264,155
Issue date
Mar 1, 2022
Dowa Electronics Materials Co., Ltd.
Kazuhiro Yamaga
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Surface-modified iron-based oxide magnetic particle powder
Patent number
11,097,956
Issue date
Aug 24, 2021
Dowa Electronics Materials Co., Ltd.
Kenji Sakane
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for producing iron-based oxide magnetic particle powder
Patent number
10,919,778
Issue date
Feb 16, 2021
Dowa Electronics Materials Co., Ltd.
Kenji Sakane
G11 - INFORMATION STORAGE
Information
Patent Grant
Iron-based oxide magnetic particle powder, method for producing sam...
Patent number
10,622,127
Issue date
Apr 14, 2020
Dowa Electronics Materials Co., Ltd.
Kenji Sakane
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Iron-based oxide magnetic particle powder and method for producing...
Patent number
10,504,548
Issue date
Dec 10, 2019
Dowa Electronics Materials Co., Ltd.
Kenji Sakane
B82 - NANO-TECHNOLOGY
Patents Applications
last 30 patents
Information
Patent Application
SILICON-OXIDE-COATED SOFT MAGNETIC POWDER, AND METHOD FOR MANUFACTU...
Publication number
20220392676
Publication date
Dec 8, 2022
DOWA ELECTRONICS MATERIALS CO., LTD.
Hidefumi FUJITA
B22 - CASTING POWDER METALLURGY
Information
Patent Application
IRON-BASED OXIDE MAGNETIC POWDER AND METHOD FOR PRODUCING SAME
Publication number
20220375663
Publication date
Nov 24, 2022
THE UNIVERSITY OF TOKYO
Shin-ichi OHKOSHI
B82 - NANO-TECHNOLOGY
Information
Patent Application
IRON-BASED OXIDE MAGNETIC POWDER AND METHOD FOR PRODUCING SAME
Publication number
20210300779
Publication date
Sep 30, 2021
DOWA ELECTRONICS MATERIALS CO., LTD.
Shin-ichi OHKOSHI
B82 - NANO-TECHNOLOGY
Information
Patent Application
EPSILON-TYPE IRON OXIDE MAGNETIC PARTICLES AND METHOD FOR PRODUCING...
Publication number
20190228889
Publication date
Jul 25, 2019
DOWA ELECTRONICS MATERIALS CO., LTD.
Kazuhiro YAMAGA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
METHOD FOR PRODUCING IRON-BASED OXIDE MAGNETIC PARTICLE POWDER
Publication number
20180208479
Publication date
Jul 26, 2018
DOWA ELECTRONICS MATERIALS CO., LTD.
Kenji SAKANE
C01 - INORGANIC CHEMISTRY
Information
Patent Application
SURFACE-MODIFIED IRON-BASED OXIDE MAGNETIC PARTICLE POWDER, AND MET...
Publication number
20180033528
Publication date
Feb 1, 2018
DOWA ELECTRONICS MATERIALS CO., LTD.
Kenji SAKANE
G11 - INFORMATION STORAGE
Information
Patent Application
IRON-BASED OXIDE MAGNETIC PARTICLE POWDER, METHOD FOR PRODUCING SAM...
Publication number
20180005737
Publication date
Jan 4, 2018
DOWA ELECTRONICS MATERIALS CO., LTD.
Kenji SAKANE
B82 - NANO-TECHNOLOGY
Information
Patent Application
IRON-BASED OXIDE MAGNETIC PARTICLE POWDER AND METHOD FOR PRODUCING...
Publication number
20170287516
Publication date
Oct 5, 2017
DOWA ELECTRONICS MATERIALS CO., LTD.
Kenji SAKANE
B82 - NANO-TECHNOLOGY