Yoshikazu IIJIMA

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Chiba-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing hydrogenated petroleum resin
- Patent number 11,773,200
- Issue date Oct 3, 2023
- Maruzen Petrochemical Co., Ltd.
- Takahiro Kawate
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information 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
Method for producing hydrogenated petroleum resin
- Patent number 9,994,650
- Issue date Jun 12, 2018
- Maruzen Petrochemical Co., Ltd.
- Yoshikazu Iijima
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MANUFACTURING COPOLYMER RESIN OF DICYCLOPENTADIENE AND VI...
- Publication number 20230220138
- Publication date Jul 13, 2023
- MARUZEN PETROCHEMICAL CO., LTD.
- Goro SAWADA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
METHOD FOR PRODUCING HYDROGENATED PETROLEUM RESIN
- Publication number 20210024676
- Publication date Jan 28, 2021
- MARUZEN PETROCHEMICAL CO., LTD.
- Takahiro KAWATE
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information 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
METHOD FOR PRODUCING HYDROGENATED PETROLEUM RESIN
- Publication number 20170096501
- Publication date Apr 6, 2017
- MARUZEN PETROCHEMICAL CO., LTD.
- Yoshikazu IIJIMA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...