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Keisuke MATSUSHITA
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Chiba, JP
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last 30 patents
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Patent Grant
Method for deodorizing hydrogenated petroleum resin, and method for...
Patent number
11,485,803
Issue date
Nov 1, 2022
Maruzen Petrochemical Co., Ltd.
Tomoki Hayashi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Production method for hydrogenated petroleum resin
Patent number
11,220,563
Issue date
Jan 11, 2022
Maruzen Petrochemical Co., Ltd.
Keisuke Matsushita
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for producing dimethyl polyvinylphosphonate and polyvinylpho...
Patent number
10,087,265
Issue date
Oct 2, 2018
Maruzen Petrochemical Co., Ltd.
Takashi Takahashi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
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Patent Application
METHOD FOR DEODORIZING HYDROGENATED PETROLEUM RESIN, AND METHOD FOR...
Publication number
20210024663
Publication date
Jan 28, 2021
MARUZEN PETROCHEMICAL CO., LTD.
Tomoki HAYASHI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PRODUCTION METHOD FOR HYDROGENATED PETROLEUM RESIN
Publication number
20200385498
Publication date
Dec 10, 2020
MARUZEN PETROCHEMICAL CO., LTD.
Keisuke MATSUSHITA
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
METHOD FOR PRODUCING DIMETHYL POLYVINYLPHOSPHONATE AND POLYVINYLPHO...
Publication number
20170198073
Publication date
Jul 13, 2017
MARUZEN PETROCHEMICAL CO., LTD.
Takashi TAKAHASHI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...