logo

For the Inventor, By the Inventor

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.:

US 8164266 B1

PDFFull Text
Expired
Date of Patent:
Apr. 24, 2012

Filed:

Nov. 13, 2009

High pressure discharge lamp lighting apparatus

Applicants:

Tetsu Okamoto, Hyoto, JP;

Hiroyuki Ishii, Hyogo, JP;

Minoru Fukuda, Hyogo, JP;

Inventors:

Tetsu Okamoto, Hyoto, JP;

Hiroyuki Ishii, Hyogo, JP;

Minoru Fukuda, Hyogo, JP;

Assignee:

Ushio Denki Kabushiki Kaisha, Tokyo, JP;

Attorney:

Rader, Fishman & Grauer PLLC

Primary Examiner:

Jacob Y Choi

Assistant Examiner:

Henry Luong

Int. Cl.
CPC ...
H01J 7/44 (2006.01); H01J 13/46 (2006.01); H01J 17/34 (2006.01); H01J 19/78 (2006.01); H01J 23/16 (2006.01); H01J 29/96 (2006.01); H01J 17/04 (2006.01); H01J 61/04 (2006.01); H01K 1/62 (2006.01); H05B 41/16 (2006.01); H05B 41/24 (2006.01); H05B 37/02 (2006.01); H05B 39/04 (2006.01); H05B 41/36 (2006.01); G05F 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A high pressure discharge lamp lighting apparatus includes a high pressure discharge lamp and a power supply apparatus, wherein in a steady state lighting operation, an alternating current of a steady state lighting frequency and alternating current of a low frequency are supplied by turns to the high pressure discharge lamp, and wherein in a small electric power lighting in which electric power to be applied is smaller than that of the steady state lighting, alternating current of a small electric power lighting frequency and direct current are supplied by turns to the high pressure discharge lamp.

Find Patent Forward Citations

Okamoto, Tetsu. (2012). High pressure discharge lamp lighting apparatus (U.S. Patent No. 8164266). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8164266

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…