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:
Apr. 28, 2015
Filed:
Feb. 25, 2013
Hideo Kanai, Tokyo, JP;
Tetsuya Fujioka, Kanagawa, JP;
Masamichi Yamada, Kanagawa, JP;
Yasutada Tsukioka, Kanagawa, JP;
Naoyuki Ishikawa, Kanagawa, JP;
Hideo Kanai, Tokyo, JP;
Tetsuya Fujioka, Kanagawa, JP;
Masamichi Yamada, Kanagawa, JP;
Yasutada Tsukioka, Kanagawa, JP;
Naoyuki Ishikawa, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image projection apparatus for projecting an image on a projection plane includes a light source; a light source housing to encase the light source; a ventilation unit to send air to the light source; and a flow path set between the light source housing and a side face of the image projection apparatus. A part of the air sent to the light source, by using the ventilation unit, is flowed into the flow path.