Granted Patent
Utility
US 6,069,440 · App. 09/300,315
Light emitting device having a nitride compound semiconductor and a phosphor containing a garnet fluorescent material
Inventors:
Yoshinori Shimizu, Kensho Sakano, Yasunobu Noguchi, Toshio Moriguchi
Patented Case
View Patent ↗
Granted: May 30, 2000
Filed: Apr 28, 1999
Inventors
Yoshinori Shimizu
Kensho Sakano
Yasunobu Noguchi
Toshio Moriguchi
Assignee (at issue)
Nichia Kagaku Kogyo 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.