And Boron Patents (Class 501/47)
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Patent number: 11472731Abstract: Glass compositions include phosphorus oxide (P2O5), niobia (Nb2O5), barium oxide (BaO) and potassium oxide (K2O) as essential components and may optionally include titania (TiO2), calcium oxide (CaO), sodium oxide (Na2O), lithium oxide (Li2O), bismuth oxide (Bi2O3), strontium oxide (SrO), tungsten oxide (WO3) and other components. The glasses may be characterized by high refractive index at 587.56 nm at comparably low density at room temperature.Type: GrantFiled: January 14, 2022Date of Patent: October 18, 2022Assignee: Corning IncorporatedInventors: Bruce Gardiner Aitken, Jian Luo, Lina Ma, Alexander I. Priven
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Patent number: 10160686Abstract: The invention provides an optical glass having excellent precision molding performance and having a refractive index of 1.46-1.53 and an Abbe number of 77-84. The optical glass comprises the following components based on cations in the molar percentage: P5+: 10-35%, Al3+: 10-35%, Ba2+: 1-20%, Sr2+: 10-35%, Ca2+: 1-20%, Gd3+: 0-10%, and Na+: 0-10%; the ratio of Sr2+/(Gd3++Na+) being 1-30; anions comprising F? and O2?, wherein the ratio F?/P5+ of F? content relative to the total molar percentage of anions to P5+ content relative to the total molar percentage of cations is 2.5 or more. The invention by rationally adjusting the proportions of the components, the molding performance of the optical glass is improved, and the problem that glass is broken and forms fogs during the molding process is solved, thereby the yield in manufacturing optical elements is improved.Type: GrantFiled: June 23, 2017Date of Patent: December 25, 2018Assignee: CDGM GLASS CO., LTD.Inventor: Bo Kuang
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Patent number: 9988300Abstract: An optical glass which is suitable for mold press molding. The optical glass contains, in weight %, 10-25% of B2O3, 30-60% of P2O5, 0-5% of Al2O3, 0.1-10% of Li2O, 0-15% of SrO, 10-50% of BaO, 0-12% of ZnO, 0-5% of Y2O3 and 0-5% of Gd2O3, while not containing La2O3.Type: GrantFiled: February 9, 2017Date of Patent: June 5, 2018Assignee: NIKON CORPORATIONInventors: Kohei Yoshimoto, Hiroshi Yamamoto
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Patent number: 9517186Abstract: The present application provides a glass composition comprising 10-50% by weight CaO, at least 15% and less than 50% by weight P2O5, less than 3% by weight Al2O3, less than 10% by weight Li2O, Na2O, and K2O combined, and 0-60% by weight of SrO, MgO, BaO, ZnO, or combinations thereof; dental compositions comprising the glass composition, and methods of making and using such dental compositions.Type: GrantFiled: January 12, 2015Date of Patent: December 13, 2016Assignee: 3M Innovative Properties CompanyInventors: Richard P. Rusin, Kevin M. Cummings, Sumita B. Mitra, Paul A. Burgio, Tsi-Zong Tzou, David S. Arney
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Patent number: 9481600Abstract: Provided are an optical fluorophosphate glass having excellent optical characteristics and also excellent processability, a glass material for press molding and an optical element each including the glass, and methods for producing the glass material and the optical element. The optical glass includes P5+ as a cationic component and O2? and F? as anionic components, wherein the optical glass has a content of F? of 40 anionic % or less, an abrasion factor FA of 420 or higher, and a fragility index value B of 4500 ?m?1/2 or lower.Type: GrantFiled: July 18, 2013Date of Patent: November 1, 2016Assignee: HOYA CORPORATIONInventors: Yoshitake Tanno, Yuki Shiota
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Publication number: 20150125823Abstract: The present application provides a glass composition comprising 10-50% by weight CaO, at least 15% and less than 50% by weight P2O5, less than 3% by weight Al2O3, less than 10% by weight Li2O, Na2O, and K2O combined, and 0-60% by weight of SrO, MgO, BaO, ZnO, or combinations thereof; dental compositions comprising the glass composition, and methods of making and using such dental compositions.Type: ApplicationFiled: January 12, 2015Publication date: May 7, 2015Inventors: Richard P. Rusin, Kevin M. Cummings, Sumita B. Mitra, Paul A. Burgio, Tsi-Zong Tzou, David S. Arney
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Patent number: 9018114Abstract: This optical glass contains, as represented by mol %, 18 to 38% P2O5, 0 to 15% B2O3, 23 to 40% P2O5+B2O3, 4 to 28% Nb2O5, 0 to 20% TiO2, 10 to 30% Nb2O5+TiO2, 15 to 35% Li2O+Na2O+K2O, and 21 to 38% ZnO, but does not contain BaO, WO3, Bi2O3 or SiO2, and the ratio of the mol % of ZnO to the total mol % of Li2O+Na2O+K2O (i.e., ZnO/(Li2O+Na2O+K2O)) is 0.8 to 2.0.Type: GrantFiled: July 10, 2012Date of Patent: April 28, 2015Assignee: Konica Minolta, Inc.Inventor: Akio Oogaki
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Patent number: 9006120Abstract: The invention relates to glasses for use in solid laser applications, particularly short-pulsed, high peak power laser applications. In particular, the invention relates to a method for broadening the emission bandwidth of rare earth ions used as lasing ions in solid laser glass mediums, especially phosphate-based glass compositions, using Nd and Yb as co-dopants. The invention further relates to a laser system using a Nd-doped and Yb-doped phosphate laser glass, and a method of generating a laser beam pulse using such a laser system.Type: GrantFiled: November 25, 2013Date of Patent: April 14, 2015Assignee: Schott CorporationInventors: Simi George, Nathan Carlie, Sally Pucilowski, Joseph Hayden
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Publication number: 20140228197Abstract: This optical glass contains, as represented by mol %, 18 to 38% P2O5, 0 to 15% B2O3, 23 to 40% P2O5+B2O3, 4 to 28% Nb2O5, 0 to 20% TiO2, 10 to 30% Nb2O5+TiO2, 15 to 35% Li2O+Na2O+K2O, and 21 to 38% ZnO, but does not contain BaO, WO3, Bi2O3 or SiO2, and the ratio of the mol % of ZnO to the total mol % of Li2O+Na2O+K2O (i.e., ZnO/(Li2O+Na2O+K2O)) is 0.8 to 2.0.Type: ApplicationFiled: July 10, 2012Publication date: August 14, 2014Inventor: Akio Oogaki
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Patent number: 8716157Abstract: An optical glass in the form of an oxide glass, characterized by comprising, denoted as cation percentages: P5+ 14 to 36%; Bi3+ 12 to 34%; Nb5+ 12 to 34%; Ti4+ 5 to 20%; and W6+ 0 to 22%; wherein the total content of Bi3+, Nb5+, Ti4+, and W6+ is equal to or greater than 50%; and in that the Knoop hardness is equal to or higher than 370, the refractive index nd is equal to or higher than 2.02, and the Abbé number vd is equal to or lower than 19.0. A glass material for press molding and an optical element comprised of this optical glass. A method for manufacturing a glass material for press molding comprising the step of mechanically processing this optical glass.Type: GrantFiled: February 23, 2012Date of Patent: May 6, 2014Assignee: Hoya CorporationInventors: Yasuhiro Fujiwara, Yoshio Nojima
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Patent number: 8652614Abstract: The present invention relates to an optical element comprising: a optical glass made of a phosphate glass or a fluorophosphate glass; and an optically functional film formed on a surface of the optical glass, wherein the optically functional film comprises two or more layers made of different materials, and the outermost surface layer thereof is made of a material(s) having low reactivity with phosphoric acid.Type: GrantFiled: June 21, 2010Date of Patent: February 18, 2014Assignee: Asahi Glass Company, LimitedInventors: Michito Takahashi, Sunao Miyazaki
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Patent number: 8647994Abstract: An optical glass having ultrahigh refractive index and high dispersion characteristics in the form of a refractive index nd exceeding 2.05 and an Abbe number vd of 18.5 or lower and of permitting the stable production of high-quality glass from a glass melt; and a glass material for press molding and an optical element comprised of the optical glass. The optical glass is in the form of an oxide glass and comprises, denoted as cationic percentages: 16 to 35% of P5+, 14 to 35% of Bi3+, 10 to 33% of Nb5+, 0 to 18% of Ti4+, and 0 to 20% of W6+; the total content of Bi3+, Nb5+, Ti4+, and W6+ being 55% or higher; the refractive index and exceeding 2.05; and the Abbe number vd being 18.5 or lower.Type: GrantFiled: September 29, 2011Date of Patent: February 11, 2014Assignee: Hoya CorporationInventor: Yasuhiro Fujiwara
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Publication number: 20130256598Abstract: Embodiments are directed to glass frits containing phosphors that can be used in LED lighting devices and for methods associated therewith for making the phosphor containing glass frit and their use in glass articles, for example, LED devices.Type: ApplicationFiled: March 28, 2013Publication date: October 3, 2013Inventors: Bruce Gardiner Aitken, Michael Edward Badding, Nicholas Francis Borrelli, Nadja Teresia Lonnroth
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Patent number: 8501649Abstract: The present invention provides an optical glass, containing, in % by weight on an oxide basis, 30 to 50% of P2O5, 18 to 43% of BaO, 2 to 12% of B2O3, 1.4 to 5% of Al2O3, more than 0 to 6% of Li2O, more than 0 to 9% of La2O3, 0.1 to 8% of MgO, 0 to 10% of CaO, 0 to 15% of SrO, 0 to 5% of ZnO, 0 to 7% of Gd2O3, and 0 to 3% of SiO2, and having optical constants of a refractive index nd of 1.59 to 1.63 and an Abbe number ?d of 63 to 68.Type: GrantFiled: August 4, 2011Date of Patent: August 6, 2013Assignee: Asahi Glass Company, LimitedInventor: Kenji Kitaoka
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Patent number: 8486536Abstract: Disclosed is a glass material for press forming providing an optical element having a sufficient optical performance without surface cracks, cloudiness, scratches, and the like even when the glass material contains a highly reactive component. Also disclosed are an optical element having a sufficient optical performance without surface cracks, cloudiness, scratches, and the like and a method for manufacturing the same. Specifically disclosed is a glass material for press forming which comprises a core portion composed of multicomponent optical glass and a surface glass layer covering at least a region serving as an optical functional surface of the core portion. The surface glass layer contains more than 90 mass % of SiO2, and the thickness of the layer is less than five nanometers. Also specifically disclosed is a method for manufacturing a glass optical element by heating the glass material and by press forming the softened glass material using a forming die.Type: GrantFiled: May 14, 2010Date of Patent: July 16, 2013Assignee: Hoya CorporationInventors: Xuelu Zou, Hiroshi Kouno, Kouichiroh Shiraishi
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Patent number: 8486850Abstract: The invention relates to aluminophosphate-based glasses suitable for use as a solid laser medium, which further contains SiO2 and B2O3. The laser glasses possess desirable figure of merit values for FOMTM and FOMlaser, as described herein.Type: GrantFiled: September 13, 2010Date of Patent: July 16, 2013Assignee: Schott CorporationInventors: Hong Li, Elizabeth Chase, Joe Hayden
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Patent number: 8404604Abstract: A P2O5—BaO—ZnO—Nb2O5 type optical glass contains 25-50 wt. % P2O5, 15-35 wt. % BaO, 1-25 wt. ZnO, and 3-10 wt. % Nb2O5. The optical glass has a high refractive index (particularly preferably the refractive index nd of 1.6 or more), low dispersion (an Abbe number ?d of 42 or more), a low deformation point, and improved resistance to devitrification upon molding, and is suitable for precision-mold press molding or other molding processes and also suitable for transfer of a fine structure.Type: GrantFiled: February 9, 2009Date of Patent: March 26, 2013Assignees: Nihon Yamamura Glass Co., Ltd., National Institute of Advanced Industrial Science and TechnologyInventors: Tatsuo Hidaka, Junichi Nakamura, Yoshitaka Mayumi, Hidekazu Hashima, Kohei Fukumi, Naoyuki Kitamura, Junji Nishii
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Patent number: 8389428Abstract: A glass composition having high refractive index, softening property at low temperature and small average thermal expansion coefficient, and a member provided with the composition on a substrate, are provided. The glass composition of the present invention has a refractive index (nd) of from 1.88 to 2.20, a glass transition temperature (Tg) of from 450 to 490° C., and an average thermal expansion coefficient at temperatures from 50° C. to 300° C. (?50-300) of from 60×10?7/K to 90×10?7/K, and includes Bi2O3 in an amount of from 5 to 25% in terms of mol % on the basis of oxides.Type: GrantFiled: July 25, 2011Date of Patent: March 5, 2013Assignee: Asahi Glass Company, LimitedInventors: Naoya Wada, Nobuhiro Nakamura, Nao Ishibashi
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Patent number: 8367572Abstract: An optical glass has a composition including: 40 to 65 mass % of P2O5, and 0 to less than 5 mass % of Li2O+Na2O+K2O. In the optical glass, (MgO+CaO)/(Li2O+Na2O+K2O) which is a ratio of the total content expressed in mass % of MgO and CaO to the total content expressed in mass % of Li2O, Na2O, and K2O, is in a range from 6 to 38.Type: GrantFiled: May 19, 2010Date of Patent: February 5, 2013Assignee: Konica Minolta Opto, Inc.Inventor: Akio Oogaki
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Patent number: 8357313Abstract: The invention relates to a new class of luminescent substances (phosphorous) based on an universally dopable matrix made of an amorphous, at the most partially crystalline network of the elements P, Si, B, Al and N, preferably the composition Si3B3N7. Optical excitation and emission can be varied in this system over the entire practically relevant field by incorporation of any cationic activators, alone or in combination, but also by incorporation of oxygen as anionic component. This opens up the entire spectrum of use of luminescent substances, such as illumination systems or electronic screens.Type: GrantFiled: October 31, 2007Date of Patent: January 22, 2013Assignee: Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.Inventors: Martin Jansen, Hasan Cakmak
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Patent number: 8329603Abstract: A composition comprising a base component and a polymer, and a method of making said composition, are disclosed. The composition thereby obtained is then used as a catalyst for isoparaffin-olefin alkylation.Type: GrantFiled: September 16, 2003Date of Patent: December 11, 2012Assignee: UOP LLCInventors: Bruce B. Randolph, Marvin M. Johnson, Glenn W. Dodwell
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Publication number: 20120309606Abstract: An optical glass includes, by mass: 38 to 55% of P2O5; 1 to 10% of Al2O3; 0 to 5.5% of B2O3; 0 to 4% of SiO2; 3 to 24.5% of BaO; 0 to 15% of SrO; 1 to 10% of CaO; 0.5 to 14.5% of ZnO; 1 to 15% of Na2O; 1 to 4% of Li2O; 0 to 4.5% of K2O; 0 to 0.4% of TiO2; and 0 to 5% of Ta2O5, in which BaO+SrO+CaO+ZnO falls within a range of 25 to 39%, Na2O+Li2O+K2O falls within a range of 5 to 20%, Al2O3+SiO2+CaO+Ta2O5 falls within a range of 9 to 18% and P2O5+B2O3+Al2O3+SiO2+BaO+SrO+CaO+ZnO+Na2O+Li2O+K2O+TiO2+Ta2O5 is equal to 98% or more.Type: ApplicationFiled: January 27, 2011Publication date: December 6, 2012Inventor: Yoshihito Taguchi
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Publication number: 20120293981Abstract: A glass composition including, in oxide-based mol %: (a) at least 30% and at most 50% P2O5, (b) at least 25% and at most 65% ZnO, (c) at least 0.1% and at most 10% Al2O3, (d) at least 0% and at most 50% Li2O, (e) at least 0% and at most 50% Na2O, (f) at least 0% and at most 50% K2O, (g) at least 0% and at most 20% MgO, (h) at least 0% and at most 20% CaO, (i) at least 0% and at most 20% SrO, (j) at least 0% and at most 20% BaO, (k) at least 0% and at most 20% SnO, and (l) at least 0% and at most 5% B2O3, at least one of (d) Li2O, (e) Na2O and (f) K2O being more than 0%, and (a)/(b), the ratio of (a) and (b), being at least 0.2 and at most 2.0.Type: ApplicationFiled: April 19, 2011Publication date: November 22, 2012Applicant: PANASONIC CORPORATIONInventors: Atsushi Motoya, Yasuharu Ueno, Kazuyuki Okano
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Patent number: 8216990Abstract: The present invention provides a composition. The composition comprises zinc and bismuth. The composition is for use in the protection of glassware in an automatic dishwashing process from detrimental effects caused by exposure to aluminum.Type: GrantFiled: January 24, 2011Date of Patent: July 10, 2012Assignee: Reckitt Benckiser N.V.Inventors: Karlheinz Ulrich Gerhard Hahn, Karin Werner
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Patent number: 8211816Abstract: A cover glass, containing, by mole percentage: 15 to 40% of P2O5; 15 to 30% of Al2O3; 0 to 15% of SiO2; 0 to 20% of B2O3; 0 to 10% of Li2O; 0 to less than 20% of Na2O; 0 to less than 20% of K2O, provided that Li2O+Na2O+K2O is in a range from 15 to less than 20%; and from 1 to 35% of MgO+CaO+SrO+ZnO. The cover glass being suitable for at least one selected from the group consisting of a solid-state imaging element package and an air-tight sealing of a resin package, and having a sufficient strength not to undergo breakage even when subjected to external force.Type: GrantFiled: October 19, 2011Date of Patent: July 3, 2012Assignee: Asahi Glass Company, LimitedInventor: Hidetoshi Suzuki
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Patent number: 8207074Abstract: The present invention relates to an optical glass containing, in terms of mass % on an oxide basis, P2O5: from 10 to 18%; Bi2O3: from 37 to 64%; Nb2O5: from 5 to 25%; Na2O: from more than 4.1 to 10%; K2O: from 0 to 2%; Li2O: from 0 to 0.2%; WO3: from 0 to less than 20%; TiO2: from 0 to 3%; and B2O3: from 0 to 2%, and having a refractive index nd of 1.98 or more and an Abbe's number ?d of 20 or less.Type: GrantFiled: April 26, 2010Date of Patent: June 26, 2012Assignee: Asahi Glass Company, LimitedInventor: Kenji Kitaoka
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Patent number: 8203169Abstract: To provide glass with which a sealing treatment can be carried out at a temperature of at most 400° C. and which does not deteriorate or change in quality for a long time. Glass comprising, as represented by mol % based on oxides, from 27 to 33% of P2O5, from 50 to 70% of SnO, from 0 to 10% of ZnO, from 0.5 to 5% of CaO and from 0 to 5% of B2O3.Type: GrantFiled: June 17, 2010Date of Patent: June 19, 2012Assignee: Asahi Glass Company, LimitedInventors: Syuji Matsumoto, Nobuhiro Nakamura, Naoya Wada, Yasuko Osaki
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Publication number: 20120142516Abstract: The disclosed is an optical glass having ultrahigh refractive index and high dispersion characteristics in the form of a refractive index nd exceeding 2.05 and an Abbe number vd of 18.5 or lower and of permitting the stable production of high-quality glass from a glass melt; and a glass material for press molding and an optical element comprised of the optical glass. The optical glass is in the form of an oxide glass and comprises, denoted as cationic percentages, 16 to 35% of P5+, 14 to 35% of Bi3+, 10 to 33% of Nb5+, 0 to 18% of Ti4+, and 0 to 20% of W6+; the total content of Bi3+, Nb5+, Ti4+, and W6+ being 55% or higher; the refractive index nd exceeding 2.05; and the Abbe number vd being 18.5 or lower.Type: ApplicationFiled: September 29, 2011Publication date: June 7, 2012Applicant: HOYA CORPORATIONInventor: Yasuhiro FUJIWARA
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Patent number: 8168553Abstract: The lead- and arsenic-free optical glass has a refractive index nd of 1.55?nd?1.64, an Abbe number ?d of 42??d?65, and a low transition temperature Tg?460° C., good producibility and processability, and crystallization stability. The optical glass has a composition within the following range, in wt. % based on oxide content: P2O5 40-58 ZnO 20-34 Li2O 0.5-5?? GeO2 0.1-11. The glass may also have a total content of SiO2, B2O3 and Al2O3 that is less than 9 wt. %. The glass may contain MgO, SrO, CaO and BaO, but the sum of these oxides is preferably at least 2 wt. % and at most 12 wt. %. The glass may contain at most 5 wt. % of each of La2O3, TiO2, Nb2O5, at most 2 wt. % Ta2O5 and less than 1 wt. % fluorine.Type: GrantFiled: February 25, 2010Date of Patent: May 1, 2012Assignee: Schott AGInventors: Silke Wolff, Stefanie Hansen, Ute Woelfel
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Publication number: 20120063479Abstract: The invention relates to aluminophosphate-based glasses suitable for use as a solid laser medium, which further contains SiO2 and B2O3. The laser glasses possess desirable figure of merit values for FOMTM and FOMlaser, as described herein.Type: ApplicationFiled: September 13, 2010Publication date: March 15, 2012Applicant: SCHOTT NORTH AMERICAInventors: Hong Li, Elizabeth Chase, Joe Hayden
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Patent number: 8114796Abstract: The lead-free and fluorine-free optical glass has a refractive index of 1.60?nd?1.64 and an Abbe number of from 56?vd?64, a transformation temperature less than or equal to 590° C., can be precise pressed and is stable to cystallization. The glass has the following, composition (in weight-% based on oxide content. P2O5, 26-35; B2O3, 10-15; Al2O3, 5.5-10; BaO, 25-37; SrO, 0-6; CaO, 8-15; ZnO, 3-10; Bi2O3, 0-8; Na2O, 0-2; K2O, 0-2; WO3, 0-10; La2O3, 0-2; Nb2O5, 0-1; TiO2,0-<1; ? alkaline earth metal oxides ?40; ? alkali metal oxides, 0-2 and at least one fining agent, 0-0.5.Type: GrantFiled: October 2, 2007Date of Patent: February 14, 2012Assignee: Schott AGInventors: Simone Monika Ritter, Ute Woelfel
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Publication number: 20120035043Abstract: To provide a cover glass for a solid-state imaging element package, which is useful for air-tight sealing of a resin package and which has a strength not to undergo breakage even when subjected to external force. A cover glass for a solid-state imaging element package, which comprises, by mole percentage, P2O5: 15 to 40%, Al2O3: 15 to 30%, SiO2: 0 to 15%, B2O3: 0 to 20%, Li2O: 0 to 15%, Na2O: 0 to 25%, K2O: 0 to 25%, provided that Li2O+Na2O+K2O: 15 to 40%, and MgO+CaO+SrO+ZnO: 1 to 35%.Type: ApplicationFiled: October 19, 2011Publication date: February 9, 2012Applicant: Asahi Glass Company, LimitedInventor: Hidetoshi SUZUKI
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Publication number: 20120035042Abstract: The present invention provides an optical glass, containing, in % by weight on an oxide basis, 30 to 50% of P2O5, 18 to 43% of BaO, 2 to 12% of B2O3, 1.4 to 5% of Al2O3, more than 0 to 6% of Li2O, more than 0 to 9% of La2O3, 0.1 to 8% of MgO, 0 to 10% of CaO, 0 to 15% of SrO, 0 to 5% of ZnO, 0 to 7% of Gd2O3, and 0 to 3% of SiO2, and having optical constants of a refractive index nd of 1.59 to 1.63 and an Abbe number ?d of 63 to 68.Type: ApplicationFiled: August 4, 2011Publication date: February 9, 2012Applicant: ASAHI GLASS COMPANY, LIMITEDInventor: Kenji KITAOKA
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Publication number: 20120033694Abstract: Disclosed are the use of phosphate-based glasses as a solid state laser gain medium, in particular, the invention relates to broadening the emission bandwidth of rare earth ions used as lasing ions in a phosphate-based glass composition, where the broadening of the emission bandwidth is believed to be achieved by the hybridization of the glass network.Type: ApplicationFiled: August 6, 2010Publication date: February 9, 2012Applicant: SCHOTT AGInventors: Hong LI, Sally PUCILOWSKI, Joseph S. HAYDEN
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Patent number: 8097576Abstract: The present invention provides a composition. The composition comprises zinc and bismuth. The composition is for use in the protection of glassware in an automatic dishwashing process.Type: GrantFiled: January 24, 2011Date of Patent: January 17, 2012Assignee: Reckitt Benckiser N.V.Inventor: Karlheinz Ulrich Gerhard Hahn
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Publication number: 20110289970Abstract: Preforms for precision press molding made of optical glass, optical elements, and methods of manufacturing the same are provided. The preforms are suited to precision press molding having a broad range of dispersion characteristics, a low glass transition temperature, a low sag point, and good resistance to devitrification while containing no PbO. The optical element is obtained by precision press molding the preform. One example of the preform has a refractive index (nd) of greater than or equal to 1.7 and an Abbé number (?d) of less than or equal to 32. The other example of the preform has an Abbé number (?d) exceeding 32.Type: ApplicationFiled: June 28, 2011Publication date: December 1, 2011Applicant: HOYA CORPORATIONInventors: Xuelu Zou, Yoshiko Kasuga, Yasuhiro Fujiwara
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Patent number: 8067321Abstract: Potassium-containing polyphosphate glasses having a relatively high amount of potassium and a relatively low level of insoluble material (e.g., less than about 10% by weight), and a method for their production that includes using a boron-containing glass-former additive. More specifically, these polyphosphate glasses may be described according to the formula M(n+2)O(PO3)n, where M is at least K or K+Na and the glasses have a mole % M-as-K that is about 33 to 100. These polyphosphate glasses may be used in reduced sodium foods (e.g., beverages and meat products).Type: GrantFiled: May 21, 2008Date of Patent: November 29, 2011Assignee: ICL Performance Products, LPInventor: David Richard Gard
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Publication number: 20110287264Abstract: A glass composition having high refractive index, softening property at low temperature and small average thermal expansion coefficient, and a member provided with the composition on a substrate, are provided. The glass composition of the present invention has a refractive index (nd) of from 1.88 to 2.20, a glass transition temperature (Tg) of from 450 to 490° C., and an average thermal expansion coefficient at temperatures from 50° C. to 300° C. (?50-300) of from 60×10?7/K to 90×10?7/K, and includes Bi2O3 in an amount of from 5 to 25% in terms of mol % on the basis of oxides.Type: ApplicationFiled: July 25, 2011Publication date: November 24, 2011Inventors: Naoya Wada, Nobuhiro Nakamura, Nao Ishibashi
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Patent number: 8056370Abstract: Methods of melt spinning to make amorphous and ceramic materials.Type: GrantFiled: August 2, 2002Date of Patent: November 15, 2011Assignee: 3M Innovative Properties CompanyInventors: Anatoly Z. Rosenflanz, Ahmet Celikkaya, Thomas J. Anderson
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Patent number: 8008220Abstract: The present invention relates to the use of lead-free and phosphate-containing glasses, preferably colored and filter glasses which absorb light in the infrared region (IR-region), in a precision molding process. Preferably, the content of fluorine in the glass is low. Advantageously, so optical constituents can be produced without finishing, such as for example lenses for digital cameras. By the use according to the present invention, also other optical constituents can be produced which can be directly used for a corresponding technical purpose. For an advantageous use, the optical constituents produced by precision molding can be used in the fields imaging, projection, telecommunications, optical communications engineering and laser technology.Type: GrantFiled: September 12, 2005Date of Patent: August 30, 2011Assignee: Schott AGInventors: Simone Monika Ritter, Christopher Klein, Christian Schenk, Frank-Thomas Lentes, Petra Auchter-Krummel, Rainer Jaschek, Steffen Reichel, Michael Waschulewski, Stephan Kuepper-Brennberger
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Patent number: 8008219Abstract: An optical glass includes, based on the total weight of the optical glass: not less than 35 weight percent and less than 45 weight percent of P2O5; not less than 0.5 weight percent and less than 10 weight percent of B2O3; 0 to 16 weight percent of Al2O3; 0 to 2.5 weight percent of SiO2; 0 to 26 weight percent of BaO; 0 to 20 weight percent of SrO; 23 to 49 weight percent of ZnO; more than 6 weight percent and not more than 20 weight percent of CaO; 0 to 16 weight percent of MgO; not less than 0 weight percent and less than 1 weight percent of Li2O; 3 to 19 weight percent of Na2O; and 0 to 20 weight percent of K2O, where the total weight of BaO, SrO, ZnO, CaO, and MgO and the total weight of Li2O, Na2O and K2O are predetermined amounts.Type: GrantFiled: July 28, 2009Date of Patent: August 30, 2011Assignee: Konica Minolta Opto, Inc.Inventor: Yoshihito Taguchi
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Patent number: 7994082Abstract: Preforms for precision press molding made of optical glass, optical elements, and methods of manufacturing the same are provided. The preforms are suited to precision press molding having a broad range of dispersion characteristics, a low glass transition temperature, a low sag point, and good resistance to devitrification while containing no PbO. The optical element is obtained by precision press molding the preform. One example of the preform has a refractive index (nd) of greater than or equal to 1.7 and an Abbé number (vd) of less than or equal to 32. The other example of the preform has an Abbé number (vd) exceeding 32.Type: GrantFiled: June 29, 2004Date of Patent: August 9, 2011Assignee: Hoya CorporationInventors: Xuelu Zou, Yoshiko Kasuga, Yasuhiro Fujiwara
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Patent number: 7964521Abstract: The present invention relates to a getter paste composition, and more particularly, to a getter paste composition which is quickly densified at low densification temperatures to be applied to a device that is weak to heat, provides good adhesiveness, controls moisture and gas effectively and is screen-printable to thereby improve productivity.Type: GrantFiled: September 4, 2008Date of Patent: June 21, 2011Assignee: Dongjin Semichem Co., Ltd.Inventors: Jung-Hyun Son, Sang-Kyu Lee, Han-Bok Joo, Jong-Dai Park
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Publication number: 20110124485Abstract: A glass composition being suitable for precision mold press forming, having superior resistance to devitrification, having optical constants (a refractive index, an Abbe number, and the like) required for aspherical lenses, and a low glass transition temperature. There is provided an optical glass comprising 5 mol % to 60 mol % of a B2O3 component, and 0.2 mol % to 60 mol % of a TeO2 component, by mol % on the basis of oxides. Further, there is provided an optical glass mentioned above having optical constants with a refractive index (nd) of 1.80 to 2.20, and an Abbe number (?d) of 16 to 40. Still further, there is provided an optical glass mentioned above having a glass transition temperature (Tg) of no more than 680° C.Type: ApplicationFiled: January 19, 2011Publication date: May 26, 2011Applicant: OHARA INC.Inventor: Jie FU
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Patent number: 7939483Abstract: Water-soluble glass as corrosion protector in dishwashing machines A zinc-containing, water-soluble glass composition comprising from 41 to 54 mole % of P2O5, 10 to 30 mole % of alkali oxides, up to 5 mole % of SO3 and up to 25 mole % of ZnO.Type: GrantFiled: March 31, 2010Date of Patent: May 10, 2011Assignee: Reckitt Benckiser N.V.Inventor: Karlheinz Ulrich Gerhard Hahn
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Patent number: 7930901Abstract: Provided are optical glasses having a phosphate-containing composition that can materialize highly useful optical properties including high-refractivity and high-dispersion properties; an optical glass comprising P2O5, SiO2 and Li2O as essential components, comprising Na2O and K2O as optional components, having an Li2O/(Li2O+Na2O+K2O) molar ratio of from ? to 1 and having an Abbe's number (?d) of 30 or less, and an optical glass comprising P2O5, SiO2 and Li2O as essential components, having the property of transmittance that when light is caused to vertically enter one of two plane and mutually parallel optically polished surfaces of a sample of the glass having a thickness of 10.0±0.1 mm and caused to exit from the other surface, the wavelength at which the transmittance represented by the ratio of transmitted light intensity to incidence light intensity (transmitted light intensity/incidence light intensity) comes to be 70% is 510 nm or less, having a refractive index (nd) of 1.Type: GrantFiled: December 10, 2008Date of Patent: April 26, 2011Assignee: Hoya CorporationInventors: Yasuhiro Fujiwara, Xuelu Zou
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Patent number: 7923393Abstract: The present invention relates to a low melting point frit paste composition and a sealing method for an electric element using the same, and more particularly, to a low melting point frit paste composition which is sealable and appropriate for a flat panel, protects an element weak to heat and improves a process yield with good print properties, and a sealing method for an electric element using the same.Type: GrantFiled: November 14, 2008Date of Patent: April 12, 2011Assignee: DONGJIN SEMICHEM Co., Ltd.Inventors: Jung-Hyun Son, Sang-Kyu Lee, Han-Bok Joo
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Publication number: 20110065564Abstract: The invention provides a novel optical glass which has a refractive index (nd) of 1.78 to 2.2 and an Abbe value (?d) of 16 to less than 40 and is suitable for precision mold press molding by virtue of its having a low glass transition temperature, namely, an optical glass which contains by mole in terms of oxides 25 to 60% B2O3, 2 to 45% (in total) TiO2 and Nb2O5 and 1 to 25% WO3 and has a refractive index (nd) of 1.78 to 2.2 and an Abbe value (?d) of 16 to less than 40. Further, the glass contains 5 to 35% La2O3 and 1 to 40% ZnO and has a glass transition temperature (Tg) of 700° C. or below. The optical glass is excellent in meltability, stability and devitrification resistance and has a high refractive index, high light-dispersive power and excellent precision press moldability.Type: ApplicationFiled: October 3, 2007Publication date: March 17, 2011Inventor: Jie Fu
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Patent number: 7906445Abstract: An optical glass includes P2O5, B2O3, Li2O, Na2O, K2O, CaO, TiO2, Bi2O3, Nb2O5 and WO3 each of which is in an amount in a predetermined range.Type: GrantFiled: June 4, 2008Date of Patent: March 15, 2011Assignee: Konica Minolta Opto, Inc.Inventor: Akio Oogaki
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Patent number: 7892996Abstract: A lead-free sealing material is provided, which contains a glass with a composition including 47.5-67.5 mole % SnO, 2.5-15 mole % MgO, and 30-40 mole % P2O5. The lead-free sealing material has excellent chemical durability, low melting temperature, and good flowability during heating. The lead-free material is particularly suitable to be used as a sealing material. The lead-free sealing material may additionally contain low-thermal-expansion powdered fillers to reduce the thermal expansion coefficient of the resulting sealing material.Type: GrantFiled: June 30, 2008Date of Patent: February 22, 2011Assignees: Tatung Company, Tatung UniversityInventors: Jiin-Jyh Shyu, Chih-Hsien Yeh