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:
Jul. 30, 2013
Filed:
Sep. 09, 2010
Masamichi Watanabe, Kawasaki, JP;
Ryo Hattori, Kawasaki, JP;
Hidekatsu Kobayashi, Kawasaki, JP;
Shoh Tsuchiya, Gotenba, JP;
Nariyasu Hayakawa, Kawasaki, JP;
Masamichi Watanabe, Kawasaki, JP;
Ryo Hattori, Kawasaki, JP;
Hidekatsu Kobayashi, Kawasaki, JP;
Shoh Tsuchiya, Gotenba, JP;
Nariyasu Hayakawa, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An illumination unit including: a light source; a light guide-diffuser that guides and diffuses source light from the light source; a selective translucent unit that reflects external light or reduces the transmission of external light, while also transmitting light guided from the light guide-diffuser; and a presentation surface that presents the source light that has been guided from the light guide-diffuser and transmitted through the selective translucent unit.