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. 09, 2014
Filed:
Jun. 28, 2013
Shunichi Sato, Miyagi, JP;
Akihiro Itoh, Miyagi, JP;
Hiroyoshi Shouji, Miyagi, JP;
Yoshinori Hayashi, Kanagawa, JP;
Daisuke Ichii, Kanagawa, JP;
Kei Hara, Miyagi, JP;
Mitsumi Fujii, Iwate, JP;
Shunichi Sato, Miyagi, JP;
Akihiro Itoh, Miyagi, JP;
Hiroyoshi Shouji, Miyagi, JP;
Yoshinori Hayashi, Kanagawa, JP;
Daisuke Ichii, Kanagawa, JP;
Kei Hara, Miyagi, JP;
Mitsumi Fujii, Iwate, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A surface-emission laser array comprises a plurality of surface-emission laser diode elements arranged in the form of a two-dimensional array, wherein a plurality of straight lines drawn perpendicularly to a straight line extending in a first direction from respective centers of the plurality of surface emission laser diode elements aligned in a second direction perpendicular to the first direction, are formed with generally equal interval in the first direction, the plurality of surface-emission laser diode elements are aligned in the first direction with an interval set to a reference value, and wherein the number of the surface-emission laser diode elements aligned in the first direction is smaller than the number of the surface-emission laser diode elements aligned in the second direction.