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Hiroyuki TSUJIWAKI
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Osaka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Porous filter
Patent number
10,391,457
Issue date
Aug 27, 2019
Sumitomo Electric Fine Polymer, Inc.
Hiroyuki Tsujiwaki
B32 - LAYERED PRODUCTS
Information
Patent Grant
Porous polytetrafluoroethylene film and method for producing same
Patent number
9,695,291
Issue date
Jul 4, 2017
Sumitomo Electric Fine Polymer, Inc.
Fumihiro Hayashi
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method for producing porous polytetrafluoroethylene film and porous...
Patent number
9,493,619
Issue date
Nov 15, 2016
Sumitomo Electric Fine Polymer, Inc.
Fumihiro Hayashi
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
POROUS MEMBRANE, POROUS MEMBRANE LAMINATE, AND METHOD OF MANUFACTUR...
Publication number
20250108340
Publication date
Apr 3, 2025
SUMITOMO ELECTRIC FINE POLYMER, INC.
Hirokazu KATAYAMA
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
POROUS FILTER
Publication number
20170157568
Publication date
Jun 8, 2017
SUMITOMO ELECTRIC FINE POLYMER, INC.
Hiroyuki TSUJIWAKI
B32 - LAYERED PRODUCTS
Information
Patent Application
METHOD FOR PRODUCING POROUS POLYTETRAFLUOROETHYLENE FILM AND POROUS...
Publication number
20150353694
Publication date
Dec 10, 2015
SUMITOMO ELECTRIC FINE POLYMER, INC.
Fumihiro HAYASHI
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
POROUS POLYTETRAFLUOROETHYLENE FILM AND METHOD FOR PRODUCING SAME
Publication number
20150337098
Publication date
Nov 26, 2015
SUMITOMO ELECTRIC FINE POLYMER, INC.
Fumihiro HAYASHI
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
POROUS MULTI-LAYER FILTER
Publication number
20130092623
Publication date
Apr 18, 2013
SUMITOMO ELECTRIC FINE POLYMER, INC.
Hiroyuki Tsujiwaki
B32 - LAYERED PRODUCTS
Information
Patent Application
POROUS MULTILAYER FILTER AND METHOD FOR PRODUCING SAME
Publication number
20110052900
Publication date
Mar 3, 2011
Sumitomo Electric Fine Polymer, Inc.
Atsushi Uno
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL