Granted Patent
Utility
US 5,590,001 · App. 08/346,370
Breather filter unit for magnetic disk drive
Inventors:
Tsuneyori Ino, Tsuyoshi Furukawa, Masaki Jinbo, Hisashi Kaneko, Shinichi Fukuzawa, Masaharu Sugimoto, Yoshiaki Nagasawa, Katsuaki Ishida, Osamu Yamazaki, Yukihiro Komura, Tomoo Sukagawa
Patented Case
View Patent ↗
Granted: Dec 31, 1996
Filed: Nov 29, 1994
Inventors
Tsuneyori Ino
Tsuyoshi Furukawa
Masaki Jinbo
Hisashi Kaneko
Shinichi Fukuzawa
Masaharu Sugimoto
Yoshiaki Nagasawa
Katsuaki Ishida
Osamu Yamazaki
Yukihiro Komura
Tomoo Sukagawa
Assignee (at issue)
Fujitsu Limited
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.