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Yoshihito Yokoyama
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Minato-ku, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Carbon material, carbonaceous material for battery electrode, and b...
Patent number
10,535,866
Issue date
Jan 14, 2020
Showa Denko K.K.
Yasuaki Wakizaka
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Composite carbon particle and lithium-ion secondary cell using same
Patent number
9,614,218
Issue date
Apr 4, 2017
Showa Denko K.K.
Masataka Takeuchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Carbon material, carbon material for battery electrode, and battery
Patent number
9,406,936
Issue date
Aug 2, 2016
Showa Denko K.K.
Yasuaki Wakizaka
C01 - INORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
THERMOPLASTIC RESIN COMPOSITION, MOLDED BODY, SEPARATOR FOR FUEL CE...
Publication number
20190319277
Publication date
Oct 17, 2019
SHOWA DENKO K.K.
Yoshihito YOKOYAMA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
COMPOSITE CARBON PARTICLE AND LITHIUM-ION SECONDARY CELL USING SAME
Publication number
20150270535
Publication date
Sep 24, 2015
SHOWA DENKO K.K.
Masataka Takeuchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
CARBON MATERIAL, CARBON MATERIAL FOR BATTERY ELECTRODE, AND BATTERY
Publication number
20150263348
Publication date
Sep 17, 2015
SHOWA DENKO K.K.
Yasuaki Wakizaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
CARBON MATERIAL, CARBONACEOUS MATERIAL FOR BATTERY ELECTRODE, AND B...
Publication number
20150162600
Publication date
Jun 11, 2015
SHOWA DENKO K.K.
Yasuaki Wakizaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
COMPOSITE GRAPHITE PARTICLES AND USE THEREOF
Publication number
20140057166
Publication date
Feb 27, 2014
Showa Denko K.K.
Yoshihito Yokoyama
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES