Kouji Yamakata

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Fireproof coated structure for penetration part
- Patent number 11,692,344
- Issue date Jul 4, 2023
- Yoshino Gypsum Co., Ltd.
- Yukiko Chatani
- E04 - BUILDING
Information Patent Grant
Penetration part fireproof coating material
- Patent number 11,624,185
- Issue date Apr 11, 2023
- Yoshino Gypsum Co., Ltd.
- Yukiko Chatani
- B32 - LAYERED PRODUCTS
Information Patent Grant
Partition wall
- Patent number 11,598,089
- Issue date Mar 7, 2023
- Yoshino Gypsum Co., Ltd.
- Wataru Ohuchi
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
PARTITION WALL
- Publication number 20210396003
- Publication date Dec 23, 2021
- YOSHINO GYPSUM CO., LTD.
- Wataru OHUCHI
- E04 - BUILDING
Information Patent Application
FIREPROOF COATED STRUCTURE FOR PENETRATION PART
- Publication number 20210071415
- Publication date Mar 11, 2021
- YOSHINO GYPSUM CO., LTD
- Yukiko CHATANI
- E04 - BUILDING
Information Patent Application
PENETRATION PART FIREPROOF COATING MATERIAL
- Publication number 20200299956
- Publication date Sep 24, 2020
- YOSHINO GYPSUM CO., LTD
- Yukiko CHATANI
- B32 - LAYERED PRODUCTS
Information Patent Application
COMPOSITION FOR BUILDING MATERIAL, AND GYPSUM BOARD AND CONSTRUCTIO...
- Publication number 20100043344
- Publication date Feb 25, 2010
- Katsumi Tada
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES