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Glass composition and substrate for information recording medium

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • C03C-003/085
  • C03C-003/087
출원번호 US-0401126 (1999-09-22)
우선권정보 JP-0268359 (1998-09-22)
발명자 / 주소
  • Shoichi Kishimoto JP
  • Akihiro Koyama JP
  • Junji Kurachi JP
  • Nobuyuki Yamamoto JP
출원인 / 주소
  • Nippon Sheet Glass Co., Ltd. JP
대리인 / 주소
    Sughrue Mion, PLLC
인용정보 피인용 횟수 : 31  인용 특허 : 10

초록

A glass composition having a high Young's modulus and a low density is disclosed which can be mass-produced by a continuous process and easily made to have high surface smoothness. Also disclosed are a substrate including the glass composition and reduced in bending and resonance even upon high-spee

대표청구항

1. A glass composition comprising, in terms of mol %,40 to 55% silicon dioxide (SiO2), 0.5 to 6% aluminum oxide (Al2O3), 2 to 20% lithium oxide (Li2O), 0 to 10% sodium monoxide ((Na2O), 2 to 30% R2O (R2O=Li2O+Na2O), 5 to 25% magnesium oxide (MgO), 0 to 25% calcium oxide (CaO), 0 to 10% strontium oxi

이 특허에 인용된 특허 (10)

  1. Akihiro Koyama JP; Shoichi Kishimoto JP; Junji Kurachi JP; Nobuyuki Yamamoto JP, Glass composition and substrate for information recording media comprising the same.
  2. Kurachi Junji,JPX ; Koyama Akihiro,JPX ; Kishimoto Shoichi,JPX ; Yamamoto Nobuyuki,JPX, Glass composition and substrate for information recording media comprising the same.
  3. Hayashi Ichiro,JPX ; Maeda Kei,JPX ; Mannami Kazuo,JPX, Glass substrate for magnetic disk.
  4. Kuroda Yasunao,JPX, Glass substrate for magnetic disks.
  5. Ishizaki Futoshi (Sagamihara JPX) Goto Naoyuki (Sagamihara JPX) Maekawa Masashi (Sagamihara JPX), Glass-ceramic for information recording disk.
  6. Kondo Kazuo (Aichi JPX) Kurachi Tatsunori (Aichi JPX) Okuyama Masahiko (Aichi JPX), Glaze compositions for ceramic substrates.
  7. Kondo Kazuo (Aichi JPX) Kurachi Tatsunori (Aichi JPX) Okuyama Masahiko (Aichi JPX), Glaze compositions for ceramic substrates.
  8. Prassas Michel (Avon FRX), High index photochromic glasses.
  9. Zou Xuelu,JPX ; Hashimoto Kazuaki,JPX, Information recording substrate and information recording medium prepared from the substrate.
  10. Ishizaki Futoshi (Sagamihara JPX) Nakahara Muneo (Sagamihara JPX) Shishido Hiroshi (Sagamihara JPX) Yamaguchi Katsuhiko (Sagamihara JPX), Optical glass.

이 특허를 인용한 특허 (31)

  1. McGinnis, Peter B.; Hofmann, Douglas, Composition for high performance glass fibers and fibers formed therewith.
  2. McGinnis, Peter Bernard; Hofmann, Douglas A., Composition for high performance glass fibers and fibers formed therewith.
  3. Hofmann, Douglas A.; McGinnis, Peter B., Composition for high performance glass high performance glass fibers and articles therefrom.
  4. Hofmann, Douglas A.; McGinnis, Peter B., Composition for high performance glass, high performance glass fibers and articles therefrom.
  5. Hofmann, Douglas A.; McGinnis, Peter B., Composition for high performance glass, high performance glass fibers and articles therefrom.
  6. Kishimoto, Shoichi; Koyama, Akihiro; Tanaka, Hiroyuki; Yamamoto, Nobuyuki, Glass article and glass substrate for information recording media using the same.
  7. Nagata, Hideki; Yuki, Hiroshi; Mori, Toshiharu; Kawai, Hideki; Ishimaru, Kazuhiko, Glass composition for crystallized glass.
  8. Nagata, Hideki; Yuki, Hiroshi; Mori, Toshiharu; Kawai, Hideki; Ishimaru, Kazuhiko, Glass composition for crystallized glass.
  9. Nagata, Hideki; Yuki, Hiroshi; Mori, Toshiharu; Kawai, Hideki; Ishimaru, Kazuhiko, Glass composition for crystallized glass.
  10. Nagata, Hideki; Yuki, Hiroshi; Mori, Toshiharu; Kawai, Hideki; Ishimaru, Kazuhiko, Glass composition for crystallized glass.
  11. Nagata, Hideki; Yuki, Hiroshi; Mori, Toshiharu; Kawai, Hideki; Ishimaru, Kazuhiko, Glass composition for crystallized glass.
  12. Nagata, Hideki; Yuki, Hiroshi; Mori, Toshiharu; Kawai, Hideki; Ishimaru, Kazuhiko, Glass composition for crystallized glass.
  13. Nagata, Hideki; Yuki, Hiroshi; Mori, Toshiharu; Kawai, Hideki; Ishimaru, Kazuhiko, Glass composition for crystallized glass.
  14. Nagata, Hideki; Yuki, Hiroshi; Mori, Toshiharu; Kawai, Hideki; Ishimaru, Kazuhiko, Glass composition for crystallized glass.
  15. Kurachi, Junji; Senshu, Yutaka, Glass composition, chemically strengthened glass, and glass substrate for information recording medium.
  16. Ikenishi, Mikio; Morita, Atsuko; Zou, Xuelu, Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied.
  17. Ikenishi, Mikio; Morita, Atsuko; Zou, Xuelu, Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied.
  18. Ikenishi, Mikio; Morita, Atsuko; Zou, Xuelu, Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied.
  19. Ikenishi,Mikio; Morita,Atsuko; Zou,Xuelu, Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied.
  20. Yagi, Toshitaka, Glass-ceramics.
  21. McGinnis, Peter B.; Hofmann, Douglas A., Method of manufacturing S-glass fibers in a direct melt operation and products formed there from.
  22. McGinnis, Peter B.; Hofmann, Douglas A., Method of manufacturing S-glass fibers in a direct melt operation and products formed therefrom.
  23. McGinnis, Peter B.; Hofmann, Douglas; Baker, David J.; Wingert, John W.; Bemis, Byron, Method of manufacturing S-glass fibers in a direct melt operation and products formed therefrom.
  24. Hoffmann, Douglas A.; McGinnis, Peter B., Method of manufacturing high performance glass fibers in a refractory lined melter and fiber formed thereby.
  25. Hofmann, Douglas A.; McGinnis, Peter B., Method of manufacturing high performance glass fibers in a refractory lined melter and fiber formed thereby.
  26. McGinnis, Peter Bernard; Hofmann, Douglas; Baker, David J.; Wingert, John W.; Bemis, Byron, Method of manufacturing high strength glass fibers in a direct melt operation and products formed there from.
  27. Grubka, Lawrence Jerome; Ray, Brian Robert; Wilson, Geoffrey Howard; Devlin, John Paul; Swett, David; Breneman, Mark Bui; Pelletier, James Steven; Maw, Kurt Michael, Ridge vent.
  28. Gassman, Paul E.; Freidner, Christopher C., Roof vent.
  29. Grubka, Lawrence J; Ray, Brian R; Wilson, Geoffrey H; Devlin, John P; Swett, David; Pelletier, James S; Maw, Kurt M; Breneman, Mark Bui, Shingle ridge vent.
  30. Kawata, Mitsuhiro; Takada, Akira; Hayashi, Hideaki; Sugimoto, Naoki; Kikugawa, Shinya, Silica glass and optical material.
  31. Lin, Jacob W., Substrate glass for optical interference filters with minimal wave length shift.
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