Granted Patent
Utility
US 6,042,951 · App. 09/017,320
Ceramic-coated blade of gas turbine and method of producing same
Inventors:
Yoshitaka Kojima, Hideyuki Arikawa, Mitsuo Haginoya, Katsuo Wada, Ryuta WATANABE, Yoshiaki Matsushita, Shin Yoshino
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Feb 2, 1998
Inventors
Yoshitaka Kojima
Hideyuki Arikawa
Mitsuo Haginoya
Katsuo Wada
Ryuta WATANABE
Yoshiaki Matsushita
Shin Yoshino
Assignees (at issue)
HITACHI, LTD.
TOKYO ELECTRIC POWER COMPANY HOLDINGS, INCORPORATED
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.