Granted Patent
Utility
US 6,640,634 · App. 09/820,886
Ultrasonic probe, method of manufacturing the same and ultrasonic diagnosis apparatus
Inventors:
Shinichi Hashimoto, Satoru Tezuka, Yohachi Yamashita, Kazuhiro Itsumi, Tsuyoshi Kobayashi, Shiro Saito
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Mar 30, 2001
Inventors
Shinichi Hashimoto
Satoru Tezuka
Yohachi Yamashita
Kazuhiro Itsumi
Tsuyoshi Kobayashi
Shiro Saito
Assignee (at issue)
Kabushiki Kaisha Toshiba
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.