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:
Nov. 23, 2010
Filed:
Nov. 17, 2008
Applicants:
Takeshi Uchida, Tokyo, JP;
Tetsuya Takeuchi, Yokohama, JP;
Inventors:
Takeshi Uchida, Tokyo, JP;
Tetsuya Takeuchi, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A surface emitting laser that oscillates at a wavelength λ includes an upper reflector, a lower reflector, an active layer, and a spacer layer. The spacer layer is a laminated structure that includes a first semiconductor sublayer having a composition of AlGaAs (1≧x>0) and a second semiconductor sublayer having a composition of AlGaAs (1>y>0 and x>y).
Uchida, Takeshi. (2010). Surface emitting laser, surface emitting laser array, and image forming apparatus including surface emitting laser (U.S. Patent No. 7839913). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7839913
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile