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.

Date of Patent:
Aug. 18, 2009

Filed:

Nov. 09, 2005
Applicants:

Minoru Koshimizu, Kanagawa, JP;

Tsutomu Ishii, Kanagawa, JP;

Yasunori Saito, Kanagawa, JP;

Ikutaroh Nagatsuka, Kanagawa, JP;

Inventors:

Minoru Koshimizu, Kanagawa, JP;

Tsutomu Ishii, Kanagawa, JP;

Yasunori Saito, Kanagawa, JP;

Ikutaroh Nagatsuka, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/30 (2006.01); G09G 3/36 (2006.01); G02F 1/135 (2006.01); G02F 1/1335 (2006.01); G02F 1/13 (2006.01);
U.S. Cl.
CPC ...
Abstract

A multi-level optical writer for writing an image by illumination to an optical-write-type recording medium laid with a display layer having a memory nature and a photoconductive layer, the optical writer includes: a holding portion holding the optical-write-type recording medium; and a write section for writing a multi-level image to the display layer by illuminating, to the photoconductive layer, image light having optical dots different in size in accordance with a gray level.


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