Ryohei Koyama

Person

Osaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method for producing biodegradable polyester film from fatty acid a...
- Patent number 11,542,373
- Issue date Jan 3, 2023
- Kaneka Corporation
- Ryohei Koyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Poly(3-hydroxyalkanoate) resin composition
- Patent number 11,053,386
- Issue date Jul 6, 2021
- Kaneka Corporation
- Ryohei Koyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for producing aliphatic polyester resin composition
- Patent number 10,836,900
- Issue date Nov 17, 2020
- Kaneka Corporation
- Ryohei Koyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Aliphatic polyester resin composition and aliphatic polyester resin...
- Patent number 10,030,117
- Issue date Jul 24, 2018
- Kaneka Corporation
- Ryohei Koyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyester resin composition and method for producing same
- Patent number 9,850,376
- Issue date Dec 26, 2017
- Kaneka Corporation
- Tetsuo Okura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyester resin composition and formed article including resin comp...
- Patent number 9,765,198
- Issue date Sep 19, 2017
- Kaneka Corporation
- Ryohei Koyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PRODUCING ALIPHATIC POLYESTER RESIN COMPOSITION
- Publication number 20200181394
- Publication date Jun 11, 2020
- KANEKA CORPORATION
- Ryohei KOYAMA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLY(3-HYDROXYALKANOATE) RESIN COMPOSITION
- Publication number 20200181397
- Publication date Jun 11, 2020
- KANEKA CORPORATION
- Ryohei KOYAMA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
METHOD FOR PRODUCING BIODEGRADABLE POLYESTER FILM
- Publication number 20200017641
- Publication date Jan 16, 2020
- KANEKA CORPORATION
- Ryohei KOYAMA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
METHOD OF PRODUCING POLYESTER RESIN COMPOSITION AND POLYESTER RESIN...
- Publication number 20160340491
- Publication date Nov 24, 2016
- KANEKA CORPORATION
- Tetsuya MINAMI
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
ALIPHATIC POLYESTER RESIN COMPOSITION AND ALIPHATIC POLYESTER RESIN...
- Publication number 20160251494
- Publication date Sep 1, 2016
- KANEKA CORPORATION
- Ryohei KOYAMA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYESTER RESIN COMPOSITION AND FORMED ARTICLE INCLUDING RESIN COMP...
- Publication number 20160090466
- Publication date Mar 31, 2016
- KANEKA CORPORATION
- Ryohei KOYAMA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYESTER RESIN COMPOSITION AND METHOD FOR PRODUCING SAME
- Publication number 20150232660
- Publication date Aug 20, 2015
- KANEKA CORPORATION
- Tetsuo Okura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Laminated surface skin material and laminate for interior material
- Publication number 20060013996
- Publication date Jan 19, 2006
- KANEKA CORPORATION
- Ryohei Koyama
- B32 - LAYERED PRODUCTS

Ryohei Koyama

Person

Patents Grantslast 30 patents

Method for producing biodegradable polyester film from fatty acid a...

Poly(3-hydroxyalkanoate) resin composition

Method for producing aliphatic polyester resin composition

Aliphatic polyester resin composition and aliphatic polyester resin...

Polyester resin composition and method for producing same

Polyester resin composition and formed article including resin comp...

Patents Applicationslast 30 patents

METHOD FOR PRODUCING ALIPHATIC POLYESTER RESIN COMPOSITION

POLY(3-HYDROXYALKANOATE) RESIN COMPOSITION

METHOD FOR PRODUCING BIODEGRADABLE POLYESTER FILM

METHOD OF PRODUCING POLYESTER RESIN COMPOSITION AND POLYESTER RESIN...

ALIPHATIC POLYESTER RESIN COMPOSITION AND ALIPHATIC POLYESTER RESIN...

POLYESTER RESIN COMPOSITION AND FORMED ARTICLE INCLUDING RESIN COMP...

POLYESTER RESIN COMPOSITION AND METHOD FOR PRODUCING SAME

Laminated surface skin material and laminate for interior material