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:
Feb. 13, 2024
Filed:
Jun. 11, 2021
Sumitomo Electric Industries, Ltd., Osaka, JP;
Sumitomo Electric Device Innovations, Inc., Yokohama, JP;
Satoshi Yoshimura, Osaka, JP;
Hiroshi Hara, Osaka, JP;
Eiji Tsumura, Osaka, JP;
Masanobu Kawamura, Yokohama, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Sumitomo Electric Device Innovations, Inc., Kanagawa, JP;
Abstract
An optical transmitter according to one embodiment includes a housing with an emission end, a light emitting element mounted on a first mounting portion of the housing, and a light receiving element mounted on a second mounting portion of the housing to monitor output light from the light emitting element. The second mounting portion is provided with a carrier, a first resin located on an emission end side of a lower side of the carrier, and a second resin located on a light emitting element side of the lower side of the carrier. A coefficient of thermal expansion of the first resin is smaller than a coefficient of thermal expansion of the second resin.