Granted Patent
Utility
US 5,606,403 · App. 08/558,769
Toner supply control system for an electrophotographic apparatus
Inventors:
Toru Kikuchi, Shuho Yokokawa, Isao Watanabe, Satoshi Aita, Hidenori Takayasu, Shigeo Nemoto, Osamu Ohuchi, Kunitomo Takahashi, Youichi Takeuchi, Hidenori Iwanaga
Patented Case
View Patent ↗
Granted: Feb 25, 1997
Filed: Nov 15, 1995
Inventors
Toru Kikuchi
Shuho Yokokawa
Isao Watanabe
Satoshi Aita
Hidenori Takayasu
Shigeo Nemoto
Osamu Ohuchi
Kunitomo Takahashi
Youichi Takeuchi
Hidenori Iwanaga
Assignee (at issue)
Hitachi Koki Co., 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.