Granted Patent
Utility
US 6,597,127 · App. 09/962,934
Discharge lamp operating apparatus, self-ballasted discharge lamp, dimmer and illumination kit for dimming
Inventors:
Kenichiro Takahashi, Satoshi Kominami, Masayoshi Gyoten, Koji Miyazaki, Mamoru Takeda
Patented Case
View Patent ↗
Granted: Jul 22, 2003
Filed: Sep 25, 2001
Inventors
Kenichiro Takahashi
Satoshi Kominami
Masayoshi Gyoten
Koji Miyazaki
Mamoru Takeda
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.