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:
Apr. 11, 2023
Filed:
Aug. 29, 2022
Fuji Electric Co., Ltd., Kawasaki, JP;
Takumi Nakamura, Shizuoka, JP;
Eiji Anzai, Shizuoka, JP;
Tomoyuki Hirayama, Shizuoka, JP;
Yutaka Hirano, Shizuoka, JP;
Ryoichi Kato, Nagano, JP;
Hiromichi Gohara, Nagano, JP;
Kohei Yamauchi, Nagano, JP;
FUJI ELECTRIC CO., LTD., Kawasaki, JP;
Abstract
A heat sink includes a base plate; a cover overlapping the base plate; fins, each having a plate-like shape projecting from the base plate in a direction perpendicular to the base plate, located between the base plate and the cover; one or a plurality of first fin groups composed of a plurality of the fins arranged with a gap therebetween in a first direction; and one or a plurality of second fin groups composed of a plurality of the fins arranged with a gap therebetween in the first direction, and adjacent to the first fin group with a gap therebetween in a second direction. Positions in the first direction of the fins belonging to the second fin group are displaced with respect to positions in the first direction of the fins belonging to the first fin group. Each of the fines has an S-shape.