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:
Jan. 05, 2016
Filed:
Oct. 04, 2013
Hitachi Metals, Ltd., Minato-ku, Tokyo, JP;
Yoshinori Sunaga, Hitachinaka, JP;
Yoshiaki Ishigami, Hitachi, JP;
Hidetaka Kawauchi, Hitachi, JP;
Hidenori Yonezawa, Hitachi, JP;
Kinya Yamazaki, Hitachi, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
Thermal connection between a plurality of communication modules and a heatsink placed on these communication modules is securely achieved and maintained. In a signal transmission device in which a common heatsink is arranged on a plurality of communication modules equipped on a board, the signal transmission device has a coil spring provided between the board and the communication modules, and the communication modules are biased toward the heatsink by the coil spring so that an upper surface of the communication module is pressed against a bottom surface of the heatsink.