Granted Patent
Utility
US 6,575,633 · App. 09/996,828
Hydraulic bearing motor
Inventors:
Hiromitsu Goto, Shinji Kinoshita, Toru Kumagai, Yukihiro Nakayama, Chihiro Tazawa, Mitsuharu Iwamoto, Ryoji Yoneyama
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Nov 29, 2001
Inventors
Hiromitsu Goto
Shinji Kinoshita
Toru Kumagai
Yukihiro Nakayama
Chihiro Tazawa
Mitsuharu Iwamoto
Ryoji Yoneyama
Assignee (at issue)
SEIKO INSTRUMENTS INC.
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.