Abstract

A surface-emitting laser device configured to emit laser light in a direction perpendicular to a substrate includes a p-side electrode surrounding an emitting area on an emitting surface to emit the laser light; and a transparent dielectric film formed on an outside area outside a center part of the emitting area and within the emitting …

Legal parties

Party
Inventors (applicants): Naoto Jikutani, Kazuhiro Harasaka, Shunichi Sato
Assignees (initial): Ricoh Company, Ltd. (Tokyo, JP)
Agents: Cooper & Dunham LLP (attorney)

The application was examined by Dung Nguyen (USPTO dept. 2828)

Claims

  • 1. A surface-emitting laser device configured to emit laser light in a direction perpendicular to a substrate …
  • 2. The surface-emitting laser device as claimed in claim 1 , …
  • 3. The surface-emitting laser device as claimed in claim 1 , …

International priority data

JP: 2009-122907 / May. 21, 2009 (national)
JP: 2008-302450 / Nov. 27, 2008 (national)

Cited documents

Patents

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Brief Description of Drawings

FIG. 1 is a diagram to explain an outline configuration of a laser printer of an embodiment of the present invention; FIG. 2 is an outline diagram showing an optical …

Description

Technical Field

The present invention relates to surface-emitting laser devices, surface-emitting laser arrays, optical scanning apparatuses and image forming apparatuses. More specifically, the present invention relates to a surface-emitting laser device and a surface-emitting …

Cross-Reference to Related Applications

This application is a Rule 1.53(b) continuation of U.S. patent application Ser. No. 13/127,845 filed May 5, 2011 as a Section 371 of PCT/JP2009/070087 filed Nov. 24, 2009, claiming priority …

Description of Embodiments

A description is given, with reference to the accompanying drawings, FIG. 1 through FIG. 30 , of embodiments of the present invention. To begin with, an embodiment of the present …

More details about Surface-Emitting Laser Device, Surface-Emitting Laser Array, Optical Scanning Apparatus and Image Forming Apparatus

Miscellaneous patent data

Invented by Shunichi Sato et al., the published inventor's name is Kazuhiro Harasaka, the claim 1 is exemplary as chosen by the examiner, the examination was conducted by Dung Nguyen, the main examiner (2828 USPTO department), the exemplary patent drawings are Diagram to explain an outline, Surface-Emitting Laser Device, Surface-Emitting Laser, First diagram to explain a surface-emitting, Outline diagram showing an optical, illustrated by 41 drawings, the application publication date is May. 6, 2013, particularly claims a surface-emitting laser device configured to emit laser light in a direction…, the application number is 13/887,778 (U.S.), categorized under Particular current control structure as a primary classification, the recorded agent's company is Cooper & Dunham LLP, the grant date is Feb. 11, 2014 (publication date), the grant number is 08649407 (publication number), assigned to a foreign company or corporation, similar documents are classified under controlling the active medium, e.g. by controlling the processes or apparatus for excitation, vertical output (surface emission), Short Wavelength Laser, Buried mesa structure, Channeled substrate, Miscellaneous, flash lamp, characterised by the material used as the active medium, in AIIIBV compounds, e.g. AlGaAs-laser, Acousto-optic, the invention is named Surface-Emitting Laser Device, Surface-Emitting Laser Array, Optical Scanning Apparatus and Image Forming Apparatus, explained by 46 figures, the assignee location is Tokyo (JP); its company is Ricoh Company, Ltd., the known applicant's name is Kazuhiro Harasaka, claims 1-29 comprise the invention scope.

Invention classification information

The invention is classified under Semiconductor lasers, Semiconductor, With vertical output (surface emission), Particular current control structure, Laser array. The designated search classifications include Semiconductor, Laser array, Particular current control structure.

Patent details
Publication number 08649407
Publication date Feb. 11, 2014
Kind code B2
Application number 13/887,778
Application date May. 6, 2013
Application type U
Application series code 13
National classification 372/46.01
Total number of claims 29
Exemplary claims 1
Number of drawings 41
Number of figures 46
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