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:
Sep. 28, 1999
Filed:
Aug. 12, 1997
Haruhito Shimizu, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A Peltier cooler (12) according to the present invention has a structure in which a Peltier device (12c) is put between a low temperature side substrate part (12a) and a high temperature side substrate part (12b) both made of insulating material. A first metal frame (22a) and a second metal frame (22b) are solder-fixed to the edge portions of the insulating substrates, respectively. The first and second metal frames (22a) and (22b) can be fixed highly precisely and stably by means of laser welding. By so doing, no solder creep occurs on the semiconductor laser module, thereby ensuring the stable arrangement of the optical system for a long time.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile