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Seiji KAGAWA
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Koshigaya-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
High-moisture-permeability, microporous plastic film, and its produ...
Patent number
11,931,972
Issue date
Mar 19, 2024
Seiji Kagawa
B24 - GRINDING POLISHING
Information
Patent Grant
Apparatus for producing microporous plastic film
Patent number
10,940,618
Issue date
Mar 9, 2021
Seiji Kagawa
B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information
Patent Grant
High-moisture-permeability, microporous plastic film, and its produ...
Patent number
10,875,259
Issue date
Dec 29, 2020
Seiji Kagawa
B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information
Patent Grant
Apparatus for producing microporous plastic film
Patent number
10,744,665
Issue date
Aug 18, 2020
Seiji Kagawa
B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information
Patent Grant
Electromagnetic-wave-absorbing composite sheet
Patent number
10,667,444
Issue date
May 26, 2020
Seiji Kagawa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Electromagnetic wave absorption cable
Patent number
10,654,257
Issue date
May 19, 2020
Seiji Kagawa
B32 - LAYERED PRODUCTS
Information
Patent Grant
Electromagnetic-wave-absorbing composite sheet
Patent number
10,645,850
Issue date
May 5, 2020
Seiji Kagawa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for producing heat-dissipating sheet having high thermal con...
Patent number
10,609,810
Issue date
Mar 31, 2020
Seiji Kagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Apparatus for producing microporous plastic film
Patent number
10,538,026
Issue date
Jan 21, 2020
Seiji Kagawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Heat-dissipating film, and its production method and apparatus
Patent number
10,538,054
Issue date
Jan 21, 2020
Seiji Kagawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Apparatus for producing easy-to-tear plastic film
Patent number
10,538,027
Issue date
Jan 21, 2020
Seiji Kagawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method and apparatus for producing microporous metal foil
Patent number
10,283,284
Issue date
May 7, 2019
Seiji Kagawa
B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information
Patent Grant
Electromagnetic-wave-absorbing filter
Patent number
10,062,477
Issue date
Aug 28, 2018
Seiji Kagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Near-field electromagnetic wave absorbing film
Patent number
10,056,697
Issue date
Aug 21, 2018
Seiji Kagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Heat-dissipating sheet having high thermal conductivity and its pro...
Patent number
10,005,943
Issue date
Jun 26, 2018
Seiji Kagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method and apparatus for producing microporous metal foil
Patent number
9,968,975
Issue date
May 15, 2018
Seiji Kagawa
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Near-field noise suppression film
Patent number
9,907,218
Issue date
Feb 27, 2018
Seiji Kagawa
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Composite electromagnetic-wave-absorbing sheet
Patent number
9,894,817
Issue date
Feb 13, 2018
Seiji Kagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for producing porous metal foil
Patent number
9,889,479
Issue date
Feb 13, 2018
Seiji Kagawa
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Heat-dissipating sheet having high thermal conductivity and its pro...
Patent number
9,631,130
Issue date
Apr 25, 2017
Seiji Kagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Composite film of linearly-scratched, thin metal film and plastic f...
Patent number
9,616,640
Issue date
Apr 11, 2017
SEIJI KAGAWA
Seiji Kagawa
B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information
Patent Grant
Electromagnetic-wave-absorbing film and its production method
Patent number
9,550,206
Issue date
Jan 24, 2017
Seiji Kagawa
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Composite electromagnetic-wave-absorbing film
Patent number
9,326,433
Issue date
Apr 26, 2016
Seiji Kagawa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Composite film of linearly-scratched, thin metal film and plastic f...
Patent number
9,238,351
Issue date
Jan 19, 2016
Seiji Kagawa
B32 - LAYERED PRODUCTS
Information
Patent Grant
Apparatus for forming slant, linear easy-to-tear portions on long p...
Patent number
9,096,013
Issue date
Aug 4, 2015
SEIJI KAGAWA
Seiji Kagawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Near-field noise suppression sheet
Patent number
8,952,273
Issue date
Feb 10, 2015
Seiji Kagawa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Electromagnetic-wave-absorbing film and electromagnetic wave absorb...
Patent number
8,598,470
Issue date
Dec 3, 2013
Seiji Kagawa
B32 - LAYERED PRODUCTS
Information
Patent Grant
Easy-to-straight-tearing thermoplastic resin film and its productio...
Patent number
7,938,998
Issue date
May 10, 2011
Seiji Kagawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method of manufacturing liquid medium containing composite ultrafin...
Patent number
7,335,281
Issue date
Feb 26, 2008
Seiji Kagawa
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Grant
Method of manufacturing liquid medium containing composite ultrafin...
Patent number
6,843,968
Issue date
Jan 18, 2005
Seiji Kagawa
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Patents Applications
last 30 patents
Information
Patent Application
NEAR-FIELD ELECTROMAGNETIC WAVE ABSORBER
Publication number
20240061474
Publication date
Feb 22, 2024
Seiji KAGAWA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
HIGH-MOISTURE-PERMEABILITY, MICROPOROUS PLASTIC FILM, AND ITS PROD...
Publication number
20210069994
Publication date
Mar 11, 2021
Seiji Kagawa
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Application
ELECTROMAGNETIC-WAVE-ABSORBING COMPOSITE SHEET
Publication number
20200045859
Publication date
Feb 6, 2020
Seiji KAGAWA
B32 - LAYERED PRODUCTS
Information
Patent Application
ELECTROMAGNETIC-WAVE-ABSORBING COMPOSITE SHEET
Publication number
20200015392
Publication date
Jan 9, 2020
Seiji Kagawa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
ELECTROMAGNETIC-WAVE-ABSORBING COMPOSITE SHEET
Publication number
20190394911
Publication date
Dec 26, 2019
Seiji Kagawa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
HEAT-DISSIPATING FILM, AND ITS PRODUCTION METHOD AND APPARATUS
Publication number
20190338176
Publication date
Nov 7, 2019
Seiji KAGAWA
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Application
APPARATUS FOR PRODUCING MICROPOROUS PLASTIC FILM
Publication number
20190248035
Publication date
Aug 15, 2019
Seiji KAGAWA
B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information
Patent Application
HEAT-DISSIPATING SHEET HAVING HIGH THERMAL CONDUCTIVITY AND ITS PRO...
Publication number
20190069389
Publication date
Feb 28, 2019
Seiji Kagawa
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
ELECTROMAGNETIC WAVE ABSORPTION CABLE
Publication number
20190009512
Publication date
Jan 10, 2019
Seiji KAGAWA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
HEAT-DISSIPATING FILM, AND ITS PRODUCTION METHOD AND APPARATUS
Publication number
20190001616
Publication date
Jan 3, 2019
Seiji KAGAWA
C01 - INORGANIC CHEMISTRY
Information
Patent Application
APPARATUS FOR PRODUCING EASY-TO-TEAR PLASTIC FILM
Publication number
20180215090
Publication date
Aug 2, 2018
Seiji KAGAWA
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
APPARATUS FOR PRODUCING MICROPOROUS PLASTIC FILM
Publication number
20180178442
Publication date
Jun 28, 2018
Seiji KAGAWA
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
APPARATUS FOR PRODUCING MICROPOROUS PLASTIC FILM
Publication number
20170368725
Publication date
Dec 28, 2017
Seiji KAGAWA
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
NEAR-FIELD ELECTROMAGNETIC WAVE ABSORBING FILM
Publication number
20170288314
Publication date
Oct 5, 2017
Seiji Kagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
NEAR-FIELD ELECTROMAGNETIC WAVE ABSORBING FILM
Publication number
20170251577
Publication date
Aug 31, 2017
Seiji Kagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
HEAT-DISSIPATING SHEET HAVING HIGH THERMAL CONDUCTIVITY AND ITS PRO...
Publication number
20170190944
Publication date
Jul 6, 2017
Seiji KAGAWA
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
HIGH-MOISTURE-PERMEABILITY, MICROPOROUS PLASTIC FILM, AND ITS PROD...
Publication number
20170136712
Publication date
May 18, 2017
Seiji Kagawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
METHOD AND APPARATUS FOR PRODUCING MICROPOROUS METAL FOIL
Publication number
20170103857
Publication date
Apr 13, 2017
Seiji KAGAWA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
HEAT-DISSIPATING FILM, AND ITS PRODUCTION METHOD AND APPARATUS
Publication number
20160185074
Publication date
Jun 30, 2016
Seiji Kagawa
B32 - LAYERED PRODUCTS
Information
Patent Application
METHOD AND APPARATUS FOR PRODUCING MICROPOROUS METAL FOIL
Publication number
20160107211
Publication date
Apr 21, 2016
Seiji KAGAWA
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
COMPOSITE FILM OF LINEARLY-SCRATCHED, THIN METAL FILM AND PLASTIC F...
Publication number
20150382518
Publication date
Dec 31, 2015
Seiji KAGAWA
B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information
Patent Application
HEAT-DISSIPATING SHEET HAVING HIGH THERMAL CONDUCTIVITY AND ITS PRO...
Publication number
20150315450
Publication date
Nov 5, 2015
Seiji KAGAWA
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
ELECTROMAGNETIC-WAVE-ABSORBING FILM AND ITS PRODUCTION METHOD
Publication number
20150259546
Publication date
Sep 17, 2015
Seiji Kagawa
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Application
HEAT-DISSIPATING SHEET HAVING HIGH THERMAL CONDUCTIVITY AND ITS PRO...
Publication number
20150257251
Publication date
Sep 10, 2015
Seiji KAGAWA
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
NEAR-FIELD NOISE SUPPRESSION FILM
Publication number
20150173257
Publication date
Jun 18, 2015
Seiji Kagawa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD FOR PRODUCING POROUS METAL FOIL
Publication number
20150114065
Publication date
Apr 30, 2015
Seiji KAGAWA
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
HEAT-DISSIPATING FILM, AND ITS PRODUCTION METHOD AND APPARATUS
Publication number
20150118482
Publication date
Apr 30, 2015
Seiji KAGAWA
B32 - LAYERED PRODUCTS
Information
Patent Application
COMPOSITE ELECTROMAGNETIC-WAVE-ABSORBING SHEET
Publication number
20150027771
Publication date
Jan 29, 2015
Seiji Kagawa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
ELECTROMAGNETIC-WAVE-ABSORBING FILM HAVING HIGH THERMAL DISSIPATION
Publication number
20140154469
Publication date
Jun 5, 2014
Seiji Kagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
NEAR-FIELD NOISE SUPPRESSION FILM
Publication number
20140141267
Publication date
May 22, 2014
Seiji Kagawa
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...