Granted Patent
Utility
US 6,656,653 · App. 09/736,150
Toner for the development of electrostatic image and method for producing the same
Inventors:
Kazuo Mitsuhashi, Osamu Ando, Noriaki Takahashi, Tomoko Ishikawa, Yuqing Xu
Patented Case
View Patent ↗
Granted: Dec 2, 2003
Filed: Dec 15, 2000
Inventors
Kazuo Mitsuhashi
Osamu Ando
Noriaki Takahashi
Tomoko Ishikawa
Yuqing Xu
Assignee (at issue)
MITSUBISHI CHEMICAL 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.