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.

Date of Patent:
Jun. 24, 2025

Filed:

May. 26, 2021
Applicant:

Hamamatsu Photonics K.k., Hamamatsu, JP;

Inventors:

Kyoichi Murayama, Hamamatsu, JP;

Keita Umeno, Hamamatsu, JP;

Assignee:

HAMAMATSU PHOTONICS K.K., Hamamatsu, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 29/83 (2015.01); F21V 29/60 (2015.01); F21V 29/71 (2015.01); F21V 29/76 (2015.01); F21Y 115/10 (2016.01); H01L 23/427 (2006.01);
U.S. Cl.
CPC ...
F21V 29/83 (2015.01); F21V 29/60 (2015.01); F21V 29/713 (2015.01); F21V 29/76 (2015.01); H01L 23/427 (2013.01); F21Y 2115/10 (2016.08); F28F 2215/00 (2013.01);
Abstract

A heatsink includes: a base plate thermally connected to a heat-generating unit; a plurality of heat radiation fins erected on a surface of the base plate, and arranged with gaps in a first direction along the surface; and a partition member provided to intersect the plurality of heat radiation fins, and partitioning the plurality of heat radiation fins in a second direction along the surface and intersecting the first direction. The partition member partitions the plurality of heat radiation fins such that more air passes through in the second direction between the plurality of heat radiation fins on a base plate side than on a side opposite to the base plate side.


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