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:
Jun. 06, 2006
Filed:
Nov. 27, 2002
Kaoru Iida, Tokyo, JP;
Takahiro Okada, Tokyo, JP;
Takashi Koseki, Tokyo, JP;
Masaru Saito, Tokyo, JP;
Jun Miyokawa, Tokyo, JP;
Toru Fukushima, Tokyo, JP;
Takeshi Aikiyo, Tokyo, JP;
Kaoru Iida, Tokyo, JP;
Takahiro Okada, Tokyo, JP;
Takashi Koseki, Tokyo, JP;
Masaru Saito, Tokyo, JP;
Jun Miyokawa, Tokyo, JP;
Toru Fukushima, Tokyo, JP;
Takeshi Aikiyo, Tokyo, JP;
The Furukawa Electric Co., Ltd., Tokyo, JP;
Abstract
An optical module includes a package; an optical device housed in the package, and having a temperature-dependent characteristic; a thermo-module connected to the optical device to control its temperature and configured to heat or cool the optical device when supplied with a first electric current in one direction or a second electric current in a direction opposite to the first electric current, respectively; and a heating element disposed close to the optical device and configured to heat the optical device when supplied with an electric current.