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Akinobu Sakamoto
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Osaka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Separator film conveyance device for nonaqueous electrolytic-soluti...
Patent number
11,491,494
Issue date
Nov 8, 2022
Sumitomo Chemical Company, Limited
Yosuke Tsukuda
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Film roll and method for producing film roll
Patent number
10,457,520
Issue date
Oct 29, 2019
Sumitomo Chemical Company, Limited
Akinobu Sakamoto
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Methods for producing multi-layer foamed sheets
Patent number
6,878,318
Issue date
Apr 12, 2005
Sumitomo Chemical Company, Limited
Akinobu Sakamoto
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Container comprising foamed olefin resin and process for producing...
Patent number
6,693,140
Issue date
Feb 17, 2004
Sumitomo Chemical Company, Limited
Seiji Shiromoto
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Process for producing uncrosslinked polypropylene-based resin foam...
Patent number
6,290,884
Issue date
Sep 18, 2001
Sumitomo Chemical Company, Limited
Akinobu Sakamoto
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Laminated sheet
Patent number
6,255,237
Issue date
Jul 3, 2001
Sumitomo Chemical Company Limited
Akinobu Sakamoto
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Polypropylene resin composition, polypropylene resin foamed materia...
Patent number
5,616,627
Issue date
Apr 1, 1997
Sumitomo Chemical Company, Limited
Tadashi Sakurai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
SEPARATOR FILM CONVEYANCE DEVICE FOR NONAQUEOUS ELECTROLYTIC-SOLUTI...
Publication number
20210184310
Publication date
Jun 17, 2021
Sumitomo Chemical Company, Limited
Yosuke TSUKUDA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
METHOD FOR MANUFACTURING SEPARATOR ROLL
Publication number
20190312249
Publication date
Oct 10, 2019
Sumitomo Chemical Company, Limited
Akinobu SAKAMOTO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEPARATOR ROLL AND METHOD FOR MANUFACTURING SAME
Publication number
20170271640
Publication date
Sep 21, 2017
Sumitomo Chemical Company, Limited
Akinobu SAKAMOTO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
FILM ROLL AND METHOD FOR PRODUCING FILM ROLL
Publication number
20170210588
Publication date
Jul 27, 2017
Sumitomo Chemical Company, Limited
Akinobu SAKAMOTO
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Application
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY SEPARATOR
Publication number
20170187023
Publication date
Jun 29, 2017
Sumitomo Chemical Company, Limited
Akinobu SAKAMOTO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Polypropylene, polypropylene resin composition and foamed article
Publication number
20070100014
Publication date
May 3, 2007
Sumitomo Chemical Company, Limited
Kenichiro Yada
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Methods for producing multi-layer foamed sheets
Publication number
20020163098
Publication date
Nov 7, 2002
Sumitomo Chemical Company, Limited
Akinobu Sakamoto
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Container comprising foamed olefin resin and process for producing...
Publication number
20010031328
Publication date
Oct 18, 2001
Seiji Shiromoto
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL