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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.:

US 12765680 B1

PDFFull Text
Date of Patent:
Oct. 20, 2026

Filed:

Mar. 07, 2022

Load-supporting structure for chair and chair

Applicant:

Okamura Corporation, Yokohama, JP;

Inventors:

Hiroshi Masunaga, Yokohama, JP;

Syunsuke Ishimaru, Yokohama, JP;

Syouichi Izawa, Yokohama, JP;

Shinpei Totsuka, Yokohama, JP;

Assignee:

OKAMURA CORPORATION, Yokohama, JP;

Attorneys:

NIXON PEABODY LLP

Jeffrey L. Costellia

Primary Examiner:

Syed A Islam

Int. Cl.
CPC ...
A47C 7/44 (2006.01); A47C 7/02 (2006.01); A47C 7/14 (2006.01); A47C 7/40 (2006.01); B60N 2/50 (2006.01); B60N 2/66 (2006.01);
U.S. Cl.
CPC ...
A47C 7/445 (2013.01); A47C 7/029 (2018.08); A47C 7/14 (2013.01); A47C 7/405 (2013.01); B60N 2/503 (2013.01); B60N 2/667 (2015.04);
Abstract

A load-supporting structure for a chair includes a receiving surface component provided with a curved receiving surface configured to receive a load from a seated person; a load supporter supporting the receiving surface component from a back side of the receiving surface; and a curved shape-changing portion configured to change a curvature radius of the receiving surface from a curvature radius in an initial state thereof to a greater curvature radius than that in the initial state in accordance with a load received by the receiving surface component. The receiving surface component generates a biasing force for returning the curvature radius of the receiving surface to that in the initial state.

Find Patent Forward Citations

Masunaga, Hiroshi. (2026). Load-supporting structure for chair and chair (U.S. Patent No. 12765680). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12765680

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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