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:
Oct. 19, 2010
Filed:
Feb. 19, 2003
Takeshi Miyazaki, Kanagawa, JP;
Ichiro Onuki, Kanagawa, JP;
Masataka Yashima, Tokyo, JP;
Akio Kashiwazaki, Kanagawa, JP;
Eriko Namazue, Tokyo, JP;
Takeshi Miyazaki, Kanagawa, JP;
Ichiro Onuki, Kanagawa, JP;
Masataka Yashima, Tokyo, JP;
Akio Kashiwazaki, Kanagawa, JP;
Eriko Namazue, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A production process of a light amount adjustment member, by which a light amount adjustment member that can sufficiently satisfy optical properties can be economically produced at low production cost and high yield by a simple operation is provided. In addition, a wide variety of light amount adjustment devices and photographing apparatus equipped with a light amount adjustment member are cheaply provided while achieving satisfactory optical properties. The production process of the light amount adjustment member comprises the step of applying a coloring liquid containing a coloring material to a transparent base material using a liquid jet recording process to form a light amount adjustment region having a particular optical density.