IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIM
US006380660B1
(12) United States Patent ao) Patent No.: us 6,380,660 Bi
Maeno et al. (45) Date of Patent: *Apr. 30,2002
(54) VIBRATION TYPE ACTUATOR AND
VIBRATION TYPE DRIVING APPARATUS
(75) Inventors: Takashi Maeno, Yokohama; Ichiro
Okumura, Matsudo; Nobuyuki
Kojima, Yokohama; Kenjiro
Takemura, Tokyo, all of (JP)
(73) Assignee: Canon Kabushiki Kaisha, Tokyo (JP)
( * ) Notice: This patent issued on a continued pros-
ecution application filed under 37 CFR
1.53(d), and is subject to the twenty year
patent term provisions of 35 U.S.C.
154(a)(2).
Subject to any disclaimer, the term of this
patent is extended or adjusted under 35
U.S.C. 154(b) by 72 days.
(21) Appl. No.: 09/569,255
(22) Filed: May 11, 2000
(30) Foreign Application Priority Data
May 14, 1999 (JP) 11-134487
(51) Int. CI. H02N 2 00
(52) U.S. CI 310/323.02; 310/323.17
(58) Field of Search 310/323.01, 323.02,
310/323.03, 323.17
(56) References Cited
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4,734,610 A 3/1988 Okumura et al 310/323
4,752,711 A 6/1988 Tsukimoto et al 310/323
4,763,148 A 8/1988 Tsukimoto et al 354/195.1
