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:
Nov. 08, 2005
Filed:
Dec. 03, 2004
Shinichi Niwa, Iwata-gun, JP;
Toshiaki Asakawa, Iwata-gun, JP;
Shigeyuki Adachi, Iwata-gun, JP;
Kuniyuki Takao, Iwata-gun, JP;
Shinichi Niwa, Iwata-gun, JP;
Toshiaki Asakawa, Iwata-gun, JP;
Shigeyuki Adachi, Iwata-gun, JP;
Kuniyuki Takao, Iwata-gun, JP;
Minebea Co., Ltd., Kitasaku-gun, JP;
Abstract
In a color wheel comprising plurality of color filter segments, one of the filter segments consists of a sector portion, and a circular core portion which is formed intergrally at the inner circumferential area of the sector portion, and which is located at the center of the wheel assembled. The inner circumferences of the remaining filter segments are fitted directly to the outer perimeter of the circular core portion of the one segment, whereby the geometric accuracy of the color wheel can be achieved. Also, the alignment process of the filter segments for preventing the color wheel from generating vibrations and noises at the time of spinning at high speed can be simplified or even eliminated thus preventing the number of manufacturing processes from increasing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile