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:
Sep. 13, 2005
Filed:
May. 21, 2003
Applicants:
Minoru Ozasa, Kyoto, JP;
Shunsuke Ono, Takatsuki, JP;
Masahiro Yamamoto, Takatsuki, JP;
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka-fu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B037/02 ;
U.S. Cl.
CPC ...
Abstract
When a detected lamp voltage (Vla) is below a predetermined value (S: No), an alternating current that is higher in frequency than an alternating current supplied under rated-power operation is supplied (S) for a predetermined time period (S). The rated power is 150 W and the higher frequency is 500 Hz.
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Ozasa, Minoru. (2005). Lighting method and apparatus for lighting a high pressure discharge lamp and high pressure discharge lamp apparatus with reduced load (U.S. Patent No. 6943503). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6943503
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