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:
May. 24, 2005
Filed:
Sep. 26, 2003
Takehisa Yoshikawa, Yokohama, JP;
Yukio Maeda, Yokohama, JP;
Masato Taya, Kyowa, JP;
Tomohisa Ohta, Nogi, JP;
Isao Ishizawa, Kanuma, JP;
Makoto Satoh, Kyowa, JP;
Takehisa Yoshikawa, Yokohama, JP;
Yukio Maeda, Yokohama, JP;
Masato Taya, Kyowa, JP;
Tomohisa Ohta, Nogi, JP;
Isao Ishizawa, Kanuma, JP;
Makoto Satoh, Kyowa, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Chemical Company, Ltd., Tokyo, JP;
Abstract
A microlens array having a substrate and microlenses of a substantially circular profile provided on the substrate and each arranged such that a major axis and a minor axis thereof, which pass through a center of the substantially circular profile and intersect at 90 degrees, are substantially equal in length to each other, and sectional forms at faces vertical to an axis parallel to the major axis or the minor axis are, respectively, made of the same curved shape at any position.