Granted Patent
Utility
US 4,988,594 · App. 07/385,316
Diazo photoconductor for electrophotography
Inventors:
Yoshimasa Hattori, Noboru Furusho, Youichi Nakamura, Masami Kuroda
Patented Case
View Patent ↗
Granted: Jan 29, 1991
Filed: Jul 26, 1989
Inventors
Yoshimasa Hattori
Noboru Furusho
Youichi Nakamura
Masami Kuroda
Assignee (at issue)
FUJI ELECTRIC 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.