USPatentGranted
B2

Magnetic head actuator having finely movable tracking device

Granted 28 Sep 2004 · 8 office actions

Current assignee: TDK Corporation · originally Alps Alpine Co., Ltd.

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Inventors: Koji Nagao, Hideki Abe, Tohru Nakazawa, Masayoshi Nakagawa · Examiner: William Korzuch

Life of the patent

17 dated events
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Abstract

A magnetic head actuator provided with a finely movable tracking device having a piezoelectric element is provided for easy wiring to the piezoelectric element and reducing problems such as wire breakage and continuity defects. In the magnetic head actuator, a portion of an FPC board resin base is removed to expose a portion of the feeding line that extends onto a voltage impressing electrode. An electrical and mechanical connection is made between the electrode and the exposed portion of the feeding line by ultrasonic bonding, Au ball bonding, or stud bumping.

Classifications

3 codes
IPC · International Patent Classification
Section G — Physics
  • G11B2/124
USPC · US Patent Classification
360/294.4360/294.6

Claim changes

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File wrapper

⤢ drag to zoomJan 2002Jul 2002Jan 2003Jul 2003Jan 2004Jul 2004USPTOApplicantNon-final rejectionResponse after non-finalFinal rejectionResponse after finalRequest for continued examinationNon-final rejectionResponse after non-finalResponse after finalRequest for continued examination
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Pendency
2.7 y
993 days filing → grant
Office actions
4
non-final + final
Responses
4
2 RCE
Examiner
William Korzuch
art unit —
Citations: 13 back · 0 forward

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Term & fees

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Priority chain

1 priority documents
›Priority documents — 1
TypeDocumentDate
related publicationUS 20020089793 A111 Jul 2002

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Citations

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