Granted Patent
Utility
US 6,643,193 · App. 10/247,301
Semiconductor device, microcomputer and flash memory
Inventors:
Takashi Yamaki, Kan Takeuchi, Mitsuru Hirakii, Toshihiro Tanaka, Yutaka Shinagawa, Masamichi Fujito
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Sep 20, 2002
Inventors
Takashi Yamaki
Kan Takeuchi
Mitsuru Hirakii
Toshihiro Tanaka
Yutaka Shinagawa
Masamichi Fujito
Assignees (at issue)
HITACHI, LTD.
Hitachi Ulsi Systems 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.