Granted Patent
Utility
US 6,506,532 · App. 09/756,124
Toner for the development of electrostatic image and process for the preparation thereof
Inventors:
Hideko Akai, Noriaki Takahashi, Yuqing Xu, Tomohiro Yamazaki, Masahiro Nukui, Kazunori Maruyama, Takashi Kokubo
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Jan 9, 2001
Inventors
Hideko Akai
Noriaki Takahashi
Yuqing Xu
Tomohiro Yamazaki
Masahiro Nukui
Kazunori Maruyama
Takashi Kokubo
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.