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Akihiko Yoshizato
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Moriyama-shi, JP
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last 30 patents
Information
Patent Grant
Method for producing polyurethane elastic fiber
Patent number
11,618,979
Issue date
Apr 4, 2023
Sanko Co., Ltd.
Akihiko Yoshizato
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Polyurethane elastic fiber and method for producing polyurethane el...
Patent number
11,105,020
Issue date
Aug 31, 2021
Sanko Co., Ltd.
Akihiko Yoshizato
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Method for producing antioxidant and method for producing elastic p...
Patent number
10,975,240
Issue date
Apr 13, 2021
Sanko Co., Ltd.
Akihiko Yoshizato
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR PRODUCING POLYURETHANE ELASTIC FIBER
Publication number
20220018042
Publication date
Jan 20, 2022
SANKO CO., LTD.
Akihiko Yoshizato
D10 - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEX...
Information
Patent Application
METHOD FOR PRODUCING POLYURETHANE ELASTIC FIBER
Publication number
20200017996
Publication date
Jan 16, 2020
Sanko Co., Ltd.
Akihiko Yoshizato
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Application
METHOD FOR PRODUCING ANTIOXIDANT AND METHOD FOR PRODUCING ELASTIC P...
Publication number
20190249005
Publication date
Aug 15, 2019
SANKO CO., LTD.
Akihiko Yoshizato
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...