Piezoelectric actuator

- NEC Corporation
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Description

FIG. 1 is a front elevational view of a piezoelectric actuator showing my new design, the rear elevational view being a mirror image thereof;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D109572 May 1938 Van Vleck
D260880 September 22, 1981 Spoor
4454398 June 12, 1984 Aschenbach et al.
4620073 October 28, 1986 Yokota et al.
4656454 April 7, 1987 Rosenberger
4836028 June 6, 1989 Voituriez
5031462 July 16, 1991 Lam
Other references
  • Honeywell transducer on p. 56 of Design News, Dec. 13, 1989. Physik Instrumente (PI) GmbH & Co. Publication, entitled "Movement +Positioning", Issue 3 of May, 1987, Waldbronn, West Germany.
Patent History
Patent number: D330363
Type: Grant
Filed: Sep 7, 1990
Date of Patent: Oct 20, 1992
Assignee: NEC Corporation (Tokyo)
Inventor: Takayuki Inoi (Tokyo)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Joel Sincavage
Law Firm: Sughrue, Mion, Zinn, Macpeak & Seas
Application Number: 7/579,451