Granted Patent
Utility
US 5,360,691 · App. 07/879,292
Carrier for developing electrostatic latent images, developer, and electrophotographic developing process
Inventors:
Katsuo Koizumi, Shigenori Otsuka, Syuuichi Maeda, Hiromi Horiuchi, Hirofumi Oda, Toshiyuki Sueyoshi
Patented Case
View Patent ↗
Granted: Nov 1, 1994
Filed: May 7, 1992
Inventors
Katsuo Koizumi
Shigenori Otsuka
Syuuichi Maeda
Hiromi Horiuchi
Hirofumi Oda
Toshiyuki Sueyoshi
Assignee (at issue)
Mitsubishi Kasei 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.