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Damping material, damping method and disc drive 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G11B-033/08
  • E04B-001/82
출원번호 US-0379612 (1999-08-24)
우선권정보 JP-10-253258 (1998-08-24); JP-10-267466 (1998-09-03); JP-10-267467 (1998-09-03)
발명자 / 주소
  • Nobuyuki Takahashi JP
  • Hideyuki Kitai JP
  • Kazumasa Tanaka JP
  • Manabu Matsunaga JP
  • Yasunori Sugihara JP
출원인 / 주소
  • Nitto Denko Corporation JP
대리인 / 주소
    Sughrue Mion, PLLC
인용정보 피인용 횟수 : 16  인용 특허 : 17

초록

A damping material is made of a porous member having an absolute characteristic impedance value of not less than 800 kg/m2?S in the frequency range of from 1.0 to 3.0 kHz. A damping method has steps of providing a damping material in the interior or on the periphery of a vibration-generating apparat

대표청구항

1. A damping material made of one of fibers aggregated into fabric and a foamed product having an absolute characteristic impedance value of not less than 800 kg/m2.cndot.S in a frequency range of from 1.0 to 3.0 kHz.

이 특허에 인용된 특허 (17)

  1. Cushman William B. (Pensacola FL) Thomas Gerald B. (Pensacola FL), Acoustic attenuation and vibration damping materials.
  2. Morris Charles P. ; Pottebaum Kenneth L. ; Stricklin John D., Acoustic isolator for a disc drive assembly.
  3. Woldemar Christopher Michael ; Mylabathula Enoch, Acoustic noise control in a disc drive.
  4. McCutcheon Jeffrey W. (Eagan MN) Landin Donald T. (Eagan MN), Damped laminates with improved fastener force retention, a method of making, and novel tools useful in making.
  5. McCutcheon Jeffrey W. ; Morse Thomas L. ; Jung Michael A. ; Johnson Brian L., Damped spacer articles and disk drive assemblies containing damped spacer articles.
  6. Haines James Charles ; Fay Ralph Michael, Method of making sound absorbing laminates and laminates having maximized sound absorbing characteristics.
  7. Cushman William B., Multi-technology acoustic energy barrier and absorber.
  8. Ehrlich John J. (Huntsville AL) Davenport Wayne E. (Huntsville AL) Taylor Travis S. (Somerville AL), Optically transmissive Faraday cage.
  9. Kanai Harumi (Saitama JPX) Tanaka Yoshiaki (Saitama JPX) Hikita Kazuyasu (Saitama JPX), Piezoelectric transducer.
  10. Sheppard Michael Q. (Homer AK), Shares for catalyst carrier elements, and catalyst apparatuses employing same.
  11. Gahlau Heinemann (Celle DEX) Hoffmann Manfred (Nienhof DEX) Seemann Norbert (Nienhagen DEX), Sound insulation part for surfaces.
  12. Iwahara Hiroyuki,JPX ; Aruga Keiji,JPX, Sound reducing cover seal for information recording apparatus.
  13. Takahashi Nobuyuki,JPX ; Matsunaga Manabu,JPX ; Tanaka Kazumasa,JPX ; Sugihara Yasunori,JPX, Soundproof material.
  14. Udo Thorn DE; Gholam Reza Sinambari DE; Wolfgang Riediger DE; Georg Jochim DE, Soundproofing material and the use thereof.
  15. Alts Thorsten,DEX, Ultra-light, multifunctional sound-insulating kit.
  16. Whitney Leland R. (St. Paul MN) Dolezal Michael W. (Eden Prairie MN) Gerdes Ronald W. (St. Paul MN) Harvieux Gary N. (Woodbury MN) Marttila Charles A. (Shoreview MN) Mandell Joseph G. (Maplewood MN) , Use of materials comprising microbubbles as acoustical barriers.
  17. Dauber Edwin G. ; Gentile Michele Marie ; Principe Frank Santo, Vibration damping article.

이 특허를 인용한 특허 (16)

  1. Kant, Rishi; Rafaelof, Menachem; Maiers, Michael Alan, Acoustic damper for a disc drive.
  2. Acciardi, Edward G.; Michael, A. David; Haynes, Jonathan S.; Mann, Kimberly C.; Leis, Michael D., Acoustic damping pad that reduces deflection of a circuit board.
  3. Hofland,Jonathan; Lalouette,Marc Jacques; Thede,Tracy Kint; Konetski,Thomas John, Adhesive sheet shaft support in a data storage device.
  4. Cho, Eun-hyoung; Sohn, Jin-seung; Park, Jun-min, Cover plate for optical disk drive.
  5. Cho,Han rae, Damping structure of a hard disk drive.
  6. Lee,Jae suk, Damping structure of a hard disk drive.
  7. Bahirat, Shirish Dnyaneshware; Lapp, David Ray, Disc drive spindle motor having a damper on a bottom surface of the spindle motor.
  8. Ojeda, Valentin; Ali, David; Berding, Keith R., Disk drive having an acoustic damping assembly with an acoustic barrier layer.
  9. Ojeda, Valentin; Ali, David; Berding, Keith R., Disk drive having an acoustic damping shield assembly with an acoustic barrier layer.
  10. Ali, David; Sevier, Claire-Nechol W. E., Disk drive having cover assembly which compresses a foam member between substantially planar rigid members.
  11. Hanke,Frederick J.; Yamada,Wayne M.; Watkins,Norman; Ali,David, Disk drive with cover including a metal layer and a polymer layer with a polymer layer feature.
  12. Nguyen, Tu; Lee, Haeng Soo; Kim, Woo-Sung, Dynamic absorber for an actuator arm in a disk drive.
  13. Chang, Chih-Wei, Low noise optical disk drive.
  14. Stamm,Stephen J.; Argys,Gregory P., Media cartridge having reel suspension system and method of manufacture.
  15. Haynes, Jonathan S.; Finn, Michael A., Stiffness reducing features in a top layer of a laminated top cover.
  16. Hirasaka, Yoshihiro; Ohta, Mutsuro; Deguchi, Takaaki, System and method of constraining vibration in a disk drive unit and motor device.
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