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. 22, 2025
Filed:
Aug. 11, 2021
Hitachi Astemo, Ltd., Hitachinaka, JP;
Yusuke Takagi, Hitachinaka, JP;
Yujiro Kaneko, Hitachinaka, JP;
Masanori Miyagi, Tokyo, JP;
Xudong Zhang, Tokyo, JP;
HITACHI ASTEMO, LTD., Hitachinaka, JP;
Abstract
A power conversion device including: a semiconductor device; a first water channel and a second water channel stacked in a predetermined stacking direction and installed with the semiconductor device interposed therebetween; and a connecting water channel connecting the first water channel and the second water channel, in which the connecting water channel is formed by joining and fixing a joint member joined to the first water channel and the second water channel and a cover member separate from the joint member to each other, the first water channel and the second water channel are joined to the joint member by a joint formed in a plane parallel to the stacking direction, and the cover member covers the joint and is joined and fixed to the joint member.