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. 08, 2008
Filed:
Sep. 02, 2004
Applicants:
Kiyoshi Takahashi, Kyotanabe, JP;
Masanori Shimizu, Kyotanabe, JP;
Tadashi Yano, Kyoto, JP;
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01J 1/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
An LED lamp includes at least one LED chip mounted on the principal surface of a substrate and an optical wavelength converting portion, which includes a phosphor for converting the emission of the LED chip into light having a longer wavelength than that of the emission and which covers at least a portion of the LED chip. The side surface of the optical wavelength converting portion has at least one concave curved surface portion.