Tartrate Containing (e.g., Rochelle Salt) {c30b 29/56} Patents (Class 117/926)
-
Patent number: 7713351Abstract: The objective of the invention is a crystallizing method for macromolecules, especially proteins and polypeptides, in which selected polysaccharides of biological origin, such as alginate, pectin, dextrin or chitosan and hydrolysates thereof, are used as reagents. Sedimentation of the crystals can be prevented and thus the uniformity of the product contributed with the method. The method can be used to prepare new crystal forms of the polypeptide and to improve the stability of crystals.Type: GrantFiled: January 11, 2005Date of Patent: May 11, 2010Assignee: Macrocrystal OyInventors: Kalevi Visuri, Sinikka Uotila, Katja Palmunen
-
Patent number: 7470324Abstract: A method for the crystallization of macromolecules in a three-phase system using a vessel containing a lower aqueous phase, a middle phase and an upper hydrophobic phase having a lower density than that of the lower aqueous phase, wherein an aqueous solution of the macromolecules is added to the middle phase to form a fourth phase, followed by incubation.Type: GrantFiled: July 29, 2003Date of Patent: December 30, 2008Inventor: Kurt Hoffmann
-
Patent number: 7258745Abstract: The present invention comprises a method for fabricating hafnia film comprising the steps of providing a substrate having a surface that allows formation of a self-assembled monolayer thereon via covalent bonding; providing an aqueous solution that provides homogeneous hafnium ionic complexes and hafnium nanoclusters wherein the aqueous solution is capable of undergoing homogeneous precipitation under controlled conditions for a desired period of time at a controlled temperature and controlled solution acidity for desired nanocluster nucleation and growth kinetics, desired nanocluster size, desired growth rate of film thickness and desired film surface characteristics.Type: GrantFiled: August 6, 2004Date of Patent: August 21, 2007Assignee: UT-Battelle, LLCInventor: Michael Z. Hu
-
Patent number: 7247203Abstract: The present invention relates to a process for producing high-quality crystals of protein or organic substances easily and efficiently. A solution of protein or an organic substance is prepared and then is cooled slowly to be supersaturated to a low degree. This supersaturated solution is irradiated with a femtosecond laser 10. A local explosion phenomenon occurs at the focal point of the laser and thereby a crystalline nucleus is generated. A high-quality crystal is obtained when a crystal is grown on the crystalline nucleus over a long period of time. The femtosecond laser to be used herein can be a titanium:sapphire laser having a wavelength of 800 nm, a duration of 120 fs, a frequency of 1 kHz, and an output of 400 mW.Type: GrantFiled: August 25, 2003Date of Patent: July 24, 2007Assignee: Osaka Industrial Promotion OrganizationInventors: Takatomo Sasaki, Yusuke Mori, Masashi Yoshimura, Hiroaki Adachi, Hiroshi Masuhara, Youichiroh Hosokawa, Kazufumi Takano
-
Patent number: 7232486Abstract: Provided is a method for crystallization and purification of a macrolide such as tacrolimus, sirolimus, pimecrolimus, or everolimus that includes the step of providing a combination of a macrolide, and a polar solvent, dopolar aprotic solvent, or hydrocarbon solvent at pH of 7 or above.Type: GrantFiled: March 31, 2004Date of Patent: June 19, 2007Assignee: TEVA Gyógyszergyár Zártkörűen Működő RészvénytársaságInventors: Vilmos Keri, Andrea Csorvasi
-
Patent number: 7166161Abstract: The present invention relates to an anisotropic films and method for obtaining the same. The film comprises substrate and at least one modified conjugated aromatic crystalline layer deposited onto said substrate. The said layer is characterized by globally ordered crystalline structure with intermolecular spacing of 3.4±0.3 ? along one of optical axes. The modified conjugated aromatic crystalline layer is formed by rodlike supramolecules, which comprise at least one polycyclic organic compound with conjugated ?-system. At least part of the modified conjugated aromatic crystalline layer has electric conductivity and is slightly soluble or insoluble in polar solvents. The films are useful in optical applications, such as polarizers and retarders, and in electronic and light emitting devices, such as fiber optics modulators and switches, solar cells, charge-coupled device (CCD), thin film transistor integrated circuits, light emitting diodes, and light emitting displays.Type: GrantFiled: October 14, 2003Date of Patent: January 23, 2007Assignee: Nitto Denko CorporationInventors: Pavel I. Lazarev, Victor V. Nazarov
-
Patent number: 6955717Abstract: The present invention provides machine readable media embedded with the three-dimensional atomic structure coordinates of Synagis Fab, and subsets thereof, and methods of using them.Type: GrantFiled: April 29, 2002Date of Patent: October 18, 2005Assignees: Medimmune Inc., Bowie State UniversityInventors: Leslie S. Johnson, Bradford Braden
-
Patent number: 6840999Abstract: Amorphous or polycrystalline films have been recrystallized into single-crystal thin films (of micrometer thickness) by a zone melting technique, in which an electrically heated wire generated a narrow heated or molten zone (0.5-2 mm wide) on the substrate sandwiched between two pieces of glass or indium-tin-oxide-coated glass. The substrate can be either an organic or inorganic compound. When the molten zone was moved slowly (3-120 ?m/min) across the layer from one end of the cell to the other, a single-crystal film was produced after a single pass. This technique allows for thin film purification and an improvement in electronic, optical, and optoelectronic properties of the thin film. After this treatment, the steady-state short-circuit photocurrent can be improved by several orders of magnitude. These films are useful in the fields of optics and electronics for improving the performance in devices such as thin-film transistors and organic light-emitting diodes.Type: GrantFiled: July 16, 2001Date of Patent: January 11, 2005Assignee: Board of Regents The University of Texas SystemInventors: Chongyang Liu, Allen J. Bard
-
Patent number: 6837926Abstract: A microfluidic device is provided that comprises: a card shaped substrate having first and second opposing faces; one or more microvolumes at least partially defined by a first face of the card shaped substrate; and one or more grooves at least partially defined by a second face of the card shaped substrate; wherein a lateral footprint of at least a portion of the one or more grooves overlaps with a lateral footprint of at least one of the one or more microvolumes.Type: GrantFiled: January 29, 2002Date of Patent: January 4, 2005Assignee: Syrrx, Inc.Inventor: Peter R. David
-
Patent number: 6821339Abstract: The invention relates to a process for the crystallization of substances having a narrow metastable supersaturation zone. In the process the saturation of a solution is gradually increased and the solution is seeded for the crystallization. The seeding is performed at a seeding point which is selected in response to a signal received from said process indicating imminent or initial spontaneous nucleation. The process provides a good crystal yield and a crystalline product having a uniform crystal structure and a narrow crystal size distribution.Type: GrantFiled: November 18, 2002Date of Patent: November 23, 2004Assignee: Finnfeeds Finland OyInventors: Kristian Eriksson, Juha Nurmi, Jouko Virtanen
-
Patent number: 6770133Abstract: A homogeneous crystal having excellent stability which is suitable for the industrial-scale production of 5-[(2,4-dioxothiazolidin-5-yl)methyl]-2-methoxy-N-[[4-(trifluoromethyl)phenyl]methyl]benzamide (KRP-297). The novel crystal of KRP-297 is produced through recrystallization from an alcohol solvent. It is characterized by having diffraction angles (2&thgr;) at at least 9.7°, 15.0°, and 22.5° in X-ray powder diffractometry.Type: GrantFiled: October 22, 2002Date of Patent: August 3, 2004Assignee: Kyorin Pharmaceutical Co., Ltd.Inventors: Michiro Ohnota, Kazuo Orita
-
Patent number: 6752868Abstract: A three dimensional photonic crystal and layer-by-layer processes of fabricating the photonic crystal. A templated substrate is exposed to a plurality of first microspheres made of a first material, the first material being of a type that will bond to the templated substrate and form a self-passivated layer of first microspheres to produce a first layer. The first layer is exposed to a plurality of second microspheres made of a second material, the second material being of a type that will bond to the first layer and form a self-passivated layer of second microspheres. This layering of alternating first and second microspheres can be repeated as desired to build a three dimensional photonic crystal of desired geometry.Type: GrantFiled: July 31, 2002Date of Patent: June 22, 2004Assignee: MCNC Research & Development InstituteInventors: John South Lewis, III, Scott Halden Goodwin-Johansson, Brian Rhys Stoner, Sonia Grego, David Edward Dausch
-
Patent number: 6743290Abstract: Disclosed are compositions comprising one or more undecamantanes. Specifically disclosed are compositions comprising 25 to 100 weight percent of one or more undecamantanes. Also disclosed are novel processes for the separation and isolation of undecamantane components into recoverable fractions from a feedstock containing at least a higher diamondoid component which contains one or more undecamantane components.Type: GrantFiled: December 12, 2001Date of Patent: June 1, 2004Assignee: Chevron U.S.A. Inc.Inventors: Jeremy E. Dahl, Robert M. Carlson
-
Patent number: 6022409Abstract: A method of optical enantiomer resolution by preferential crystallization involves entering, each time crystallization starts, the two-phase domain containing excess enantiomer and the saturated solution, and cooling according to a well-defined kinetic schedule. A racemic mixture of fine particle size is added to the mother liquors obtained after harvesting the crystals, the mother liquors then being heated to a temperature lower than that of homogenization of the solution so that excess enantiomer is present only in a solid state in equilibrium with the solution. Further cooling produces the other enantiomer and completes the cycle of operations which may then be carried out repetitively.Type: GrantFiled: October 2, 1996Date of Patent: February 8, 2000Assignee: The University of RouenInventors: Gerard Coquerel, Marie-Noelle Petit, Roger Bouaziz
-
Patent number: 6017390Abstract: The present invention relates to methods and compositions for the growth and alignment of crystals at biopolymeric films. The methods and compositions of the present invention provide means to generate a variety of dense crystalline ceramic films, with totally aligned crystals, at low temperatures and pressures, suitable for use with polymer and plastic substrates.Type: GrantFiled: July 22, 1997Date of Patent: January 25, 2000Assignee: The Regents of the University of CaliforniaInventors: Deborah H. Charych, Amir Berman
-
Patent number: 6001176Abstract: A device for specific formation of nuclei or crystals on the surface of a dielectric in contact with a solution, especially on the functional groups of a polymer, in which there is a device for generating an electric field in the dielectric.Type: GrantFiled: September 25, 1996Date of Patent: December 14, 1999Assignees: Klaus Leiter, Gerhard WalderInventors: Klaus Leiter, Gerhard Walder
-
Patent number: 5738720Abstract: The present invention aims to provide a method of manufacturing a microstructure pattern of a high orientation aggregate of organic molecular material by forming a fine pattern made by single crystal growing ionic material of another property on an ionic substrate by lithography and epitaxial growth, and forming a pattern made by organic molecular material having functionability to light on the fine pattern by utilizing dependence of substrate material of crystal growth rate in epitaxial growth, and is applied to the formation of a microstructure pattern of organic molecular material which can be utilized for optical waveguide, optical integrated circuit, non-linear optical element and laser resonator.Type: GrantFiled: February 12, 1996Date of Patent: April 14, 1998Assignee: The University of TokyoInventors: Toshihiro Shimada, Atsushi Koma
-
Patent number: 5554220Abstract: In a method using organic vapor phase deposition (OCPD), for the growth of thin films of optically nonlinear organic salts, a volatile precursor of each component of the salt is carried as a vapor to a hot-wall reaction chamber by independently controlled streams of carrier gas. The components react to form a polycrystalline thin film on substrates of glass and gold. Excess reactants and reaction products are purged from the system by the carrier gas. For example, the method provides the growth of polycrystalline, optically nonlinear thin films of 4'-dimethylamino-N-methyl-4-stilbazolium tosylate (DAST) with >95% purity.Type: GrantFiled: May 19, 1995Date of Patent: September 10, 1996Assignee: The Trustees of Princeton UniversityInventors: Stephen R. Forrest, Vladimir S. Ban, Paul E. Burrows, Jeffrey Schwartz