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특허 상세정보

Glass composition and process for producing the same

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C03C-003/062    C03C-003/085    C03C-003/087    B32B-017/00   
미국특허분류(USC) 501/069 ; 501/070 ; 501/072 ; 501/073 ; 428/064.2 ; 428/065.4 ; 428/065.6 ; 428/410 ; 428/689
출원번호 US-0293991 (1999-04-19)
우선권정보 JP0124308 (1998-04-17)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Sughrue, Mion, Zinn, Macpeak & Seas, PLLC
인용정보 피인용 횟수 : 41  인용 특허 : 10
초록

A glass composition is disclosed which has a high modulus elasticity (Young's modulus) and a high rigidity (modulus of elasticity/specific gravity) and is capable of being effectively inhibited from bending or vibrating. Also disclosed is a process for producing the glass composition. The glass composition comprises, in terms of mol %, 40 to 65% SiO.sub.2, 5 to 25% Al.sub.2 O.sub.3, 2 to 20% Li.sub.2 O, 0 to 9% Na.sub.2 O, 0 to 10% TiO.sub.2, 0 to 10% ZrO.sub.2, 0 to 25% MgO, 0 to 25% CaO, and 0 to 10% SrO, provided that the content of RO (RO=MgO+CaO+SrO...

대표
청구항

[ What is claimed is:] [1.]1. A substrate for information recording media which comprises a glass composition comprising the following basic components in terms of mol %:40 to 65% SiO.sub.2,5 to 25% Al.sub.2 O.sub.3,2 to 20% Li.sub.2 O,0 to 9% Na.sub.2 O,0 to 10% TiO.sub.2,0 to 10% ZrO.sub.2,0 to 25% MgO,0 to 25% CaO, and0 to 10% SrO,provided that the content of RO (RO.dbd.MgO+CaO+SrO) is from 2 to 40% and the sum of (Li.sub.2 O)/2 and Na.sub.2 O is from 1 to 10 mol %, said glass composition further containing from 0.1 to 3.0 mol % SnO.sub.2 and from 0.0...

이 특허에 인용된 특허 (10)

  1. Speit Burkhard,DEX. Chemically prestressable aluminosilicate glass and products made therefrom. USP1999045895768.
  2. Morinaga Kenji,JPX ; Akimoto Yuji,JPX ; Shimizu Fumiyuki,JPX ; Iwasaki Mineto,JPX ; Shindo Naoto,JPX. Crystallized glass for substrate of information-recording disk. USP1998095804520.
  3. Maeda Kei,JPX ; Onoda Hitoshi,JPX ; Nakao Yasumasa,JPX ; Sehgal Jeetendra,JPX. Glass composition for a substrate. USP1999015858897.
  4. Maeda Kei,JPX ; Onoda Hitoshi,JPX ; Nakao Yasumasa,JPX ; Sehgal Jeetendra,JPX. Glass composition for a substrate. USP1999065908794.
  5. Maeda Kei (Yokohama JPX) Nakao Yasumasa (Yokohama JPX) Kushitani Hideki (Yokohama JPX) Ito Setsuro (Yokohama JPX). Glass composition for a substrate, and substrate for plasma display made thereof. USP1997025599754.
  6. Hayashi Ichiro,JPX ; Maeda Kei,JPX ; Mannami Kazuo,JPX. Glass substrate for magnetic disk. USP1999055900296.
  7. Ishizaki Futoshi (Sagamihara JPX) Goto Naoyuki (Sagamihara JPX) Maekawa Masashi (Sagamihara JPX). Glass-ceramic for information recording disk. USP1996105561089.
  8. Taguchi Tomoyuki,JPX ; Kawai Hideki,JPX ; Ohara Tohru,JPX ; Kuriyama Ikuo,JPX ; Wakabayashi Hajimu,JPX ; Nakajima Sadao,JPX. Glass-ceramic magnetic disk substrate. USP1998035726108.
  9. Zou Xuelu,JPX ; Hashimoto Kazuaki,JPX. Information recording substrate and information recording medium prepared from the substrate. USP1999125997977.
  10. Araujo Roger J. (Horseheads NY) Morgan David W. (Corning NY). Ultraviolet absorbing glasses. USP1994015281562.

이 특허를 인용한 특허 피인용횟수: 41

  1. McGinnis, Peter B.; Hofmann, Douglas. Composition for high performance glass fibers and fibers formed therewith. USP2012088252707.
  2. McGinnis, Peter Bernard; Hofmann, Douglas A.. Composition for high performance glass fibers and fibers formed therewith. USP2012128338319.
  3. Hofmann, Douglas A.; McGinnis, Peter B.. Composition for high performance glass high performance glass fibers and articles therefrom. USP2013108563450.
  4. Hofmann, Douglas A.; McGinnis, Peter B.. Composition for high performance glass, high performance glass fibers and articles therefrom. USP2010097799713.
  5. Hofmann, Douglas A.; McGinnis, Peter B.. Composition for high performance glass, high performance glass fibers and articles therefrom. USP2013118586491.
  6. Takagi, Kazuaki; Hibino, Kunio; Tokunaga, Tomokazu; Okuyama, Fujio; Onoda, Minoru. Die and glass material for forming glass substrate, method for manufacturing glass substrate, and magnetic disk glass substrate. USP2004046718799.
  7. Dejneka, Matthew John; Gomez, Sinue. Fining agents for silicate glasses. USP2015079073779.
  8. Kishimoto, Shoichi; Koyama, Akihiro; Tanaka, Hiroyuki; Yamamoto, Nobuyuki. Glass article and glass substrate for information recording media using the same. USP2004036713418.
  9. Nagata, Hideki; Yuki, Hiroshi; Mori, Toshiharu; Kawai, Hideki; Ishimaru, Kazuhiko. Glass composition for crystallized glass. USP2003116642161.
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  13. Nagata, Hideki; Yuki, Hiroshi; Mori, Toshiharu; Kawai, Hideki; Ishimaru, Kazuhiko. Glass composition for crystallized glass. USP2003116645890.
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