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:
Aug. 16, 2011
Filed:
Jul. 10, 2008
Applicants:
Syunsuke Ono, Osaka, JP;
Minoru Ozasa, Kyoto, JP;
Masahiro Yamamoto, Osaka, JP;
Go Yamada, Osaka, JP;
Inventors:
Syunsuke Ono, Osaka, JP;
Minoru Ozasa, Kyoto, JP;
Masahiro Yamamoto, Osaka, JP;
Go Yamada, Osaka, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
After startup, a lighting method for a high-pressure discharge lamp is to light the lamp at a rated frequency without switching the frequency for 120 seconds (S, S), and thereafter to switch from the rated frequency to a more audible frequency in accordance with a change in voltage value (Sto S).