The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 2026
Filed:
Sep. 22, 2022
Yoshino Gypsum Co., Ltd., Tokyo, JP;
Ushio Sudo, Tokyo, JP;
Katsumi Niimi, Tokyo, JP;
Tomoya Hasegawa, Tokyo, JP;
Takuji Yamashita, Tokyo, JP;
Kozo Akai, Tokyo, JP;
Yousuke Sato, Tokyo, JP;
YOSHINO GYPSUM CO., LTD., Tokyo, JP;
Abstract
A wooden load-bearing wall having a structure in which a gypsum-based load-bearing board is fastened to a wooden wall base, is provided. The gypsum-based load-bearing board includes a main material formed from a board-shaped hardened gypsum; and a paper covering at least front and back surfaces of the main material. The gypsum-based load-bearing board has a surface density in a range from 6.5 kg/mto 8.9 kg/m; a lateral nail resistance of 500 N or more; and a compressive strength of 6.5 N/mmor more. The main material contains an inorganic fiber and an organic-based strength enhancer. The gypsum-based load-bearing board has a correction value (Pu') of an ultimate strength (Pu) of 7.7 kN or more, measured by an in-plane shear test.