Granted Patent
Utility
US 6,548,824 · App. 09/883,497
Semiconductor light emitting device for stably obtaining peak wave length of emission spectrum
Inventors:
Takahisa Kurahashi, Hiroshi Nakatsu, Hiroyuki Hosoba, Tetsurou Murakami
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Jun 19, 2001
Inventors
Takahisa Kurahashi
Hiroshi Nakatsu
Hiroyuki Hosoba
Tetsurou Murakami
Assignee (at issue)
SHARP KABUSHIKI KAISHA
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.