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:
Mar. 04, 2025
Filed:
Feb. 04, 2021
Nippon Steel Corporation, Tokyo, JP;
Hiromi Asama, Tokyo, JP;
Junichiro Suzuki, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
A tray () including a bottom wall () and a peripheral side wall () erected from an outer periphery of the bottom wall () includes a high-strength portion HT having a high tensile strength; and a low-strength portion LT having a tensile strength lower than that of the high-strength portion HT. The low-strength portion LT includes a recessed portion (C) having a corner portion (C) in a first side wall inner surface () and a second side wall inner surface () which are adjacent to each other at a minor angle and a corner section (C) on an upper surface () of the bottom wall () having a minor angle to each of the first side wall inner surface () and the second side wall inner surface ().