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. 11, 2004
Filed:
Nov. 28, 2001
Hiroshi Anzai, Fujisawa, JP;
Takemi Namba, Tsukuba, JP;
Hirokazu Yamamoto, Fujisawa, JP;
Yoshimi Imamoto, Fujisawa, JP;
Takao Kanno, Fujisawa, JP;
NOK Corporation, Tokyo, JP;
Abstract
There is provided a light shielding apparatus with a light shielding seal that reduces a sliding resistance and, at the same time, improves light shielding property and realizes saving of a space. There is provided a light shielding structure that is provided between a plurality of members and , which are arranged to be able to move relatively to each other spaced a predetermined distance apart, and is capable of preventing light from entering from a gap to be formed between these plurality of members and , having magnetic force generating means and that are disposed in any one of the above-mentioned plurality of members and and magnetic fluid which is magnetically held by the magnetic force generating means and and contacts the other member and shielding a gap, which is formed between the above-mentioned plurality of members and , by the above-mentioned magnetic fluid