Granted Patent
Utility
US 5,897,706 · App. 08/834,293
Methods for crucible attachment to support base of single crystal pulling apparatus and support base assembly apparatus and support base employed therein
Inventors:
Masakazu Yamazaki, Michio Yanaba, Hiroaki Taguchi, Takashi Atami, Hisashi Furuya
Patented Case
View Patent ↗
Granted: Apr 27, 1999
Filed: Apr 15, 1997
Inventors
Masakazu Yamazaki
Michio Yanaba
Hiroaki Taguchi
Takashi Atami
Hisashi Furuya
Assignees (at issue)
Mitsubishi Materials Silicon Corp.
MITSUBISHI MATERIALS CORPORATION
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.