Granted Patent
Utility
US 6,043,468 · App. 09/126,847
Carbon heater
Inventors:
Eiichi Toya, Masahiko Ichishima, Tomio Konn, Tomohiro Nagata, Shigeru Yamamura, Norihiko Saito, Kouji Teraoka, Takeshi Inaba, Hiroyuki Honma, Ken Nakao, Takanori Saito, Hisaei Osanai, Toshiyuki Makiya
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Jul 31, 1998
Inventors
Eiichi Toya
Masahiko Ichishima
Tomio Konn
Tomohiro Nagata
Shigeru Yamamura
Norihiko Saito
Kouji Teraoka
Takeshi Inaba
Hiroyuki Honma
Ken Nakao
Takanori Saito
Hisaei Osanai
Toshiyuki Makiya
Assignees (at issue)
Toshiba Ceramics Co., Ltd.
Tokyo Electron Limited
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.