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Hirotsugu Yoshida
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Kyoto-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Extrusion material supply device and optical transmission body manu...
Patent number
8,945,669
Issue date
Feb 3, 2015
Sekisui Chemical Co., Ltd.
Tazuru Okamoto
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Process for producing oriented thermoplastic polyester resin sheet,...
Patent number
8,617,445
Issue date
Dec 31, 2013
Sekisui Chemical Co., Ltd.
Shigeru Ogasawara
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Optical fiber and method for manufacturing same
Patent number
8,611,714
Issue date
Dec 17, 2013
Sekisui Chemical Co., Ltd.
Hirotsugu Yoshida
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
GI type optical fiber and method for manufacturing same
Patent number
8,600,210
Issue date
Dec 3, 2013
Sekisui Chemical Co., Ltd.
Hirotsugu Yoshida
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
PIPELINE MEMBER FOR ULTRAPURE WATER AND POLYETHYLENE-BASED RESIN CO...
Publication number
20230151223
Publication date
May 18, 2023
Sekisui Chemical Co., Ltd
Tomoki YAMADA
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
OPTICAL FIBER AND METHOD FOR MANUFACTURING SAME
Publication number
20120114291
Publication date
May 10, 2012
Hirotsugu Yoshida
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
EXTRUSION MATERIAL SUPPLY DEVICE AND OPTICAL TRANSMISSION BODY MANU...
Publication number
20120034374
Publication date
Feb 9, 2012
Keio University
Tazuru Okamoto
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
GI TYPE OPTICAL FIBER AND METHOD FOR MANUFACTURING SAME
Publication number
20120027369
Publication date
Feb 2, 2012
Hirotsugu Yoshida
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Process for Producing Oriented Thermoplastic Polyester Resin Sheet,...
Publication number
20080182472
Publication date
Jul 31, 2008
Shigeru Ogasawara
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL