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. 24, 2009
Filed:
Mar. 14, 2006
Applicants:
Shigeru Hirosawa, Fussa, JP;
Hideaki Masuo, Musashimurayama, JP;
Inventors:
Shigeru Hirosawa, Fussa, JP;
Hideaki Masuo, Musashimurayama, JP;
Assignee:
Casio Computer Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/26 (2006.01); G03B 21/16 (2006.01); G03B 21/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A projection apparatus includes a projector including a cooling fan which cools the inside of a main unit through an air hole provided in the main unit and ceiling hanging hardware including a bracket having an external cooling fan which faces the air hole and whose air-flow direction coincides with that of the air hole. The projector is mounted on the ceiling hanging hardware while hanging from the ceiling hanging hardware.
Hirosawa, Shigeru. (2009). Projection apparatus, ceiling hanging hardware for projection apparatus, and method of controlling operation of projection apparatus (U.S. Patent No. 7621643). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7621643
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile