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:
Mar. 25, 2008
Filed:
Jan. 27, 2004
Junji Nishii, Ikeda, JP;
Tatsuhiro Nakazawa, Ikeda, JP;
Shigeo Kittaka, Osaka, JP;
Keiji Tsunetomo, Osaka, JP;
Junji Nishii, Ikeda, JP;
Tatsuhiro Nakazawa, Ikeda, JP;
Shigeo Kittaka, Osaka, JP;
Keiji Tsunetomo, Osaka, JP;
Nippon Sheet Glass Company, Limited, Osaka, JP;
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Abstract
An optical element of the present invention includes a structure having at least one convex portion and at least one concave portion formed so as to be adjacent to either one of the convex portions. At least one surface of the structure is covered, and the optical element has a hollow portion. At least one surface of the structure is covered with a covering layer formed by a deposition process.