US RE40,928 E1
Optical pickup
Noriyuki Kawano, Tokyo (Japan); Kouichi Ogura, Tokyo (Japan); Yoshio Saito, Tokyo (Japan); and Mitsuru Kinouchi, Tokyo (Japan)
Assigned to TDK Corporation, Tokyo (Japan)
Filed on Dec. 26, 2006, as Appl. No. 11/645,328.
Application 08/888232 is a division of application No. 08/813314, filed on Mar. 10, 1997, abandoned.
Application 08/813314 is a division of application No. 08/810340, filed on Feb. 27, 1997, granted, now 5,724,337.
Application 09/576907 is a continuation of application No. 08/994560, filed on Dec. 19, 1997, granted, now 6,084,834.
Application 08/994560 is a continuation of application No. 08/888232, filed on Jul. 03, 1997, granted, now 5,877,904.
Application 08/810340 is a continuation of application No. 08/330671, filed on Oct. 28, 1994, abandoned.
Application 11/645328 is a reissue of application No. 09/576907, filed on May 23, 2000, now 6,288,984, filed on Sep. 11, 2001.
Claims priority of application No. 5-271595 (JP), filed on Oct. 29, 1993; application No. 5-301689 (JP), filed on Dec. 01, 1993; application No. 5-346418 (JP), filed on Dec. 22, 1993; and application No. 5-292006 (JP), filed on Nov. 22, 1996.
Int. Cl. G11B 7/00 (2006.01)
U.S. Cl. 369—44.14 10 Claims
OG exemplary drawing
 
3. An optical pickup device as claimed in claim 2 , [ comprising:
an objective-lens driving device for driving an objective lens, which includes a magnetic circuit including a yoke, and resiliently supporting members for supporting a movable part of the objective-lens driving device;
an optical system for transmitting and receiving light to and from said objective lens;
a base having a through hole formed therein, on which said objective-lens driving device and said optical system are mounted, and wherein at least a portion of said yoke of said magnetic circuit of said objective-lens driving device is accommodated in said through hole; and
a movable plate integrally formed with said yoke as said magnetic circuit, said yoke having a substantially U-shaped cross-section, on which said objective-lens driving device is mounted,]
wherein an inclination of said movable plate is adjusted relative to said base.