Glass manufacturing – Processes – Devitrifying glass or vitrifying crystalline glass
Reexamination Certificate
2006-03-08
2011-10-04
Lazorcik, Jason L. (Department: 1741)
Glass manufacturing
Processes
Devitrifying glass or vitrifying crystalline glass
C065S025100, C065S033100, C065S111000, C065S137000, C423S598000, C423S297000
Reexamination Certificate
active
08028541
ABSTRACT:
Disclosed is a method of producing a barium-titanium-based ferroelectric glass using a containerless solidification process, such as an electrostatic levitation process or a gas levitation process, which comprises the steps of levitating a sample1of a barium-titanium-based compound by a levitating force of compressed air, heating the sample up to a temperature greater than its melting point (1330° C.) by about 100° C. to allow the sample to be molten, and, after maintaining the molten state for a given time period (at least several second), quenching the sample from a given temperature range (1400 to 1000° C.) at a cooling rate of about 103K/sec, so as to allow the sample to be solidified while inhibiting nucleation and mixing of impurities from a container. The present invention makes it possible to provide a glass exhibiting an unprecedented, extremely large permittivity.
REFERENCES:
patent: 3293051 (1966-12-01), Searight et al.
patent: 3493403 (1970-02-01), Chi Fang Tung et al.
patent: 6153007 (2000-11-01), Nakata
patent: 6967011 (2005-11-01), Saboungi et al.
patent: 2005/0024808 (2005-02-01), Kawasaki et al.
patent: 2005/0199180 (2005-09-01), Yono et al.
patent: 2006/0203417 (2006-09-01), Kawasaki et al.
patent: 42-22385 (1942-11-01), None
patent: 48-31734 (1973-10-01), None
patent: 08070100 (1996-03-01), None
patent: 2001-048586 (2001-02-01), None
patent: 2001247362 (2001-09-01), None
patent: 2003146697 (2003-05-01), None
patent: 2003-284855 (2003-10-01), None
patent: 2004-020798 (2004-01-01), None
patent: 2005-053726 (2005-03-01), None
patent: 2004/083757 (2004-09-01), None
Machine language translation of JP 2005-053726 accessed on PAJ website Jun. 12, 2009.
Yu, J., Paradis, P.-F., Ishikawa, T., Yoda, S., Miura, I., Shan, Y-J., “Synthesis of barium titanate by electrostatic levitation”, Journal of Crystal growth 273 (2005) 515-519.
Akishige, Y., Fukano, K., Shigematsu, H., “Crystal growth and dielectric properties of new ferroelectric barium titanate: BaTi2O5” journal of Electroceramics, 13, 561-565, 2004.
Official Action Issued in the Corresponding Japanese Application No. 2005-064055 on Oct. 29, 2007.
K. Yoshimaru et al.; Journal of the Ceramic Society of Japan, 1984, 92: p. 481.
A. Narasaki et al.; Poling-induced crystallization of tetragonal . . . ; Applied Physics Letters; American Institute of Physics; 1999; pp. 3399-pp. 3401; vol. 75; No. 21.
Kenji Haraya et al.; Gas Permeation Through the Porous Membrane Prepared From Synthetic Water-Swelling Fluoromica; 50 Yogo-Kyokai-Shil 92 [9] 1984.
Office Action issued on Dec. 11, 2006 in the corresponding Japanese patent application JP 2004-20798 (3 pages).
Paul-Francois Paradis et al., “Non-Contact Density Measurements of Liquid and Undercooled Ceramics,” The 24th Japan Symposium on Thermophysical Properties, 2003, pp. 71-73.
Arai Yasutomo
Ishikawa Takehiko
Yoda Shinichi
Yono Kentei
Griffin & Szipl, P.C.
Japan Aerospace Exploration Agency
Lazorcik Jason L.
LandOfFree
Method of producing barium-titanium-based oxide glass using... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of producing barium-titanium-based oxide glass using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing barium-titanium-based oxide glass using... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4266502