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:
Dec. 03, 2019
Filed:
Mar. 08, 2016
Applicants:
Kazuma Izumiya, Miyagi, JP;
Naoto Jikutani, Miyagi, JP;
Masayuki Numata, Kanagawa, JP;
Inventors:
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/00 (2006.01); H01S 5/42 (2006.01); F02P 23/04 (2006.01); H01S 3/00 (2006.01); H01S 3/06 (2006.01); H01S 3/0941 (2006.01); H01S 3/11 (2006.01); H01S 3/16 (2006.01); H01S 5/026 (2006.01); H01S 5/042 (2006.01); H01S 5/183 (2006.01); H01S 5/22 (2006.01); H01S 5/343 (2006.01);
U.S. Cl.
CPC ...
H01S 5/423 (2013.01); F02P 23/04 (2013.01); H01S 3/005 (2013.01); H01S 3/061 (2013.01); H01S 3/09415 (2013.01); H01S 3/11 (2013.01); H01S 3/1115 (2013.01); H01S 3/1611 (2013.01); H01S 3/1643 (2013.01); H01S 5/026 (2013.01); H01S 5/0425 (2013.01); H01S 5/18361 (2013.01); H01S 5/22 (2013.01); H01S 5/18313 (2013.01); H01S 5/3432 (2013.01); H01S 5/34353 (2013.01);
Abstract
A surface-emitting laser array includes a plurality of light emitting parts. Each light emitting part includes a reflection mirror including aluminum gallium arsenide (AlGaAs) where x is greater than 0.95 but less than or equal to 1; an active layer; and an electrode surrounding an emission region, from which laser light is emitted, the electrode covering a region between adjacent light emitting parts in the plurality of light emitting parts.