Granted Patent
Utility
US 6,490,310 · App. 09/658,920
Laser discharge electrodes with current return plate structure
Inventors:
Takayuki Yabu, Takanobu Ishihara, Takashi Matsunaga, Yasufumi Kawasuji
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Sep 11, 2000
Inventors
Takayuki Yabu
Takanobu Ishihara
Takashi Matsunaga
Yasufumi Kawasuji
Assignee (at issue)
KOMATSU 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.