Patents by Inventor Sang H. Kim
Sang H. Kim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 5340711Abstract: A silver halide photographic element having a green sensitive layer the silver halide of which is sensitized by a combination of three sensitizing dyes of the formula I, II and III: ##STR1## wherein: each of the benzo-rings of I, II or III may be substituted or unsubstituted;each L is a substituted or unsubstituted methine; andR1 through R9 are substituted or unsubstituted alkyl or aryl.Type: GrantFiled: January 15, 1993Date of Patent: August 23, 1994Assignee: Eastman Kodak CompanyInventor: Sang H. Kim
-
Patent number: 5272048Abstract: A multicolor photographic element capable of forming a viewable reversal dye image is disclosed comprising a support and, coated on the support, a blue recording yellow dye image forming layer unit, a green recording magenta dye image forming layer unit, and a red recording cyan dye image forming layer unit, each of the layer units containing in at least one layer a silver halide emulsion having a grain halide content of from 0 to 5 mole percent chloride, from. 0.5 to 20 mole percent iodide, and from 80 to 99.5 mole percent bromide, based on total silver.The photographic element is characterized in that at least one of the silver halide emulsion layers is a tabular grain emulsion layer in which the coefficient of variation of the tabular grain emulsion is less than 15 percent, based on the total grain population of the emulsion, and the total grain population of the tabular emulsion consists essentially of tabular grains having a mean thickness of less than 0.3 .mu.m and a mean tabularity of greater than 25.Type: GrantFiled: March 4, 1992Date of Patent: December 21, 1993Assignee: Eastman Kodak CompanyInventors: Sang H. Kim, Mamie Kam-Ng, Allen K. Tsaur, Jacob I. Cohen, Richard A. Demauriac, George H. Hawks, III, John D. Baloga
-
Patent number: 5260327Abstract: This invention provides methods for inhibiting the proliferation of brain or hepatic metastases, in vivo, by contacting the cells with lonidamine and radiation.Type: GrantFiled: August 4, 1992Date of Patent: November 9, 1993Assignee: Sloan-Kettering Institute for Cancer ResearchInventors: Jae H. Kim, Sang H. Kim, Alan Alfieri, Charles W. Young
-
Patent number: 5252453Abstract: A process is disclosed of accelerating the preparation of a photographic emulsion containing tabular silver halide grains exhibiting a reduced degree of total grain dispersity. A dispersing medium is provided containing bromide ions, and a population of silver halide grain nuclei containing parallel twin planes is formed in the dispersing medium. A portion of the grain nuclei are ripened out, and then the silver halide grain nuclei containing parallel twin planes remaining are grown to form tabular silver halide grains. A polyalkylene oxide containing both hydrophilic and lipophilic block units is selected from among those known to be capable of reducing total grain dispersity when present during nucleation. However, in this process precipitation is accelerated while maintaining low dispersity of the total grain population by forming twin planes in the grain nuclei within the pAg and temperature boundaries of Curve A in FIG.Type: GrantFiled: November 4, 1992Date of Patent: October 12, 1993Assignee: Eastman Kodak CompanyInventors: Allen K. Tsaur, Mamie Kam-Ng, Sang H. Kim
-
Patent number: 5236817Abstract: A multicolor photographic element capable of forming a viewable reversal dye image is disclosed comprising a support and, coated on the support, a blue recording yellow dye image forming layer unit, a green recording magenta dye image forming layer unit, and a red recording cyan dye image forming layer unit, each of the dye image forming layer units containing at least one silver halide emulsion layer comprised of a vehicle and silver halide grains having (1) a halide content of from 0 to 5 mole percent chloride, from 0.1 to 20 mole percent iodide, and from 80 to 99.9 mole percent bromide, based on total silver. At least one of the silver halide emulsion layers in one of the layer units positioned to receive exposing radiation prior to at least one of the green or red recording layer units is a tabular grain emulsion layer in which a polyalkylene oxide block copolymer is present selected to allow the preparation of tabular grains having a mean thickness of less than 0.3 .mu.Type: GrantFiled: March 30, 1992Date of Patent: August 17, 1993Assignee: Eastman Kodak CompanyInventors: Sang H. Kim, Mamie Kam-Ng, Allen K. Tsaur, Jacob I. Cohen, Richard A. Demauriac, George H. Hawks, III, John D. Baloga
-
Patent number: 5176990Abstract: A method for forming a photographic element includes steps of heating an emulsion containing grains of a radiation sensitive silver haloiodide to form a first melt, heating an emulsion containing grains of a silver salt effective to enhance the photographic properties of the silver haloiodide emulsion to form a second melt, and coating the first and second melts onto a photographic support to form an image recording layer. The silver salt grains are substantially insensitive to radiation at wavelengths at which said silver haloiodide grains are sensitive. The coating step is preferably carried out by blending the first and second melts together, then immediately coating the silver haloiodide emulsion onto the support. In a preferred embodiment, the silver salt is essentially silver chloride in the form of relatively fine cubic grains, and the silver haloiodide is in the form of tabular grains larger than the cubic grains.Type: GrantFiled: December 21, 1990Date of Patent: January 5, 1993Assignee: Eastman Kodak CompanyInventor: Sang H. Kim
-
Patent number: 5159261Abstract: A superconducting energy stabilizer having multiple load connections employs DC-DC conversion. A discharging DC-DC converter removes stored energy from a superconducting inductive energy storage device or superconducting magnet and delivers the energy to an energy storage cell for use by a load or a utility or industrial electrical distribution system. Regenerated energy can also be retrieved from regenerative type devices and stored in the superconducting magnet for later use. A charging DC-DC converter provides this function. The charging DC-DC converter and the discharging DC-DC converter as well as an off-the-line power supply which provides energy for storage in the superconducting magnet can operate simultaneously under the control of a control system.Type: GrantFiled: June 19, 1991Date of Patent: October 27, 1992Assignee: Superconductivity, Inc.Inventors: Sang H. Kim, Eric L. Kostecki, Carel C. DeWinkel
-
Patent number: 5081110Abstract: This invention provides a method of killing sarcoma cells in a patient by administering to the patient an effective amount of fludarabine phosphate effective to inhibit the repair of potentially lethal damage to the sarcoma cells and exposing the patient to an effective amount of ionizing radiation, effective to kill the sarcoma tumor cells in the patient.Type: GrantFiled: December 13, 1988Date of Patent: January 14, 1992Assignee: Sloan-Kettering Institute For Cancer ResearchInventors: Jae H. Kim, Alan A. Alfieri, Sang H. Kim, Zvi Fuks
-
Patent number: 5047500Abstract: A fiber product comprising one or more fibers of aromatic polyamide polymer having a microscopic structure of an extended molecular chain, free of crystal defect layers perpendicular to the fiber axis, a high inherent viscosity of at least 3.0 [dl/g], and a high tensile strength of at least 15 g/d, said inherent viscosity being determined at 30.degree. C. using a concentration of 0.5 grams of said polymer in 100 ml of concentration sulfuric acid.Type: GrantFiled: October 23, 1989Date of Patent: September 10, 1991Assignee: Kolon Industries, Inc.Inventors: Ho J. Park, Moo S. Rhim, Hak M. Kim, Du H. Kim, Seog C. Yoo, Sang H. Kim, Sa N. B. Park, Ink S. Han, John T. Park, Si M. Kim
-
Patent number: 4997751Abstract: The low intensity reciprocity failure characteristics of a silver halide emulsion are improved, without significant reduction of high intensity speed, by incorporating iridium ion into the silver halide grains after or toward the end of the precipitation of the grains in such a way that iridium is below the surface of the grains.Type: GrantFiled: November 20, 1989Date of Patent: March 5, 1991Assignee: Eastman Kodak CompanyInventor: Sang H. Kim
-
Patent number: 4971744Abstract: A process for preparing aromatic polyamide film wherein an aromatic diamine and an aromatic diacidchloride are dissolved in an amide polymerization solvent containing an inorganic salt, a partial polymerization is effected at a low temperature to form an optically anisotropic liquid crystalline prepolymer dope, continuously extruding through a film die under a draw ratio or subjecting to a shear and contacting the prepolymer with a second solvent which is a polymerization accelerating-precipitation solvent to obtain an aromatic polyamide film free of crystal defect layer perpendicular to the film axis and having high strength and a high degree of molecular orientation.Type: GrantFiled: August 21, 1989Date of Patent: November 20, 1990Assignee: Kolon Industries, Inc.Inventors: Ho J. Park, Moo S. Rhim, Hak M. Kim, Du H. Kim, Seog O. Yoo, Sang H. Kim, Sang B. Park, Ink S. Han, Jong T. Park, Si M. Kim
-
Patent number: 4876040Abstract: A process for preparing aromatic polyamide fibers wherein an aromatic diamine and an aromatic diacidchloride are dissolved in an amide polymerization solvent containing an inorganic salt, a partial polymerization is effected at a low temperature to form an optically anisotropic liquid crystalline prepolymer dope, and the liquid crystalline prepolymer dope is subjected to a molecular orientating polymerization in a polymerization accelerating-precipitation solvent to provide aromatic polyamide fibers free of a crystal defect layer perpendicular to the fiber axis and having high strength and high degree of molecular orientation.Type: GrantFiled: March 10, 1987Date of Patent: October 24, 1989Assignee: Kolon Industries, Inc.Inventors: Ho J. Park, Moo S. Rhim, Hak M. Kim, Du H. Kim, Seog C. Yoo, Sang H. Kim, Sa Ng B. Park, Ink S. Han, Jong T. Park, Si M. Kim
-
Patent number: 4796585Abstract: A vacuum advance regulator designed to control the suction force of the vacuum that is applied to the vacuum advancer. The suction, in turn, controls the spark timing and allows combustion to occur when the crank position is at 12 degrees at the ATDC, thus, producing maximum engine power efficiency. The regulator consists of a body (1) containing in part, a vacuum chamber (2) that is connected to the outside of the body by a pair of nipples (3) that are inserted through a first bore (4) and a second bore (4'). The other side of the nipples are connected to a vacuum hose (11). One side of this hose is connected to the vacuum advancer while the other side is connected to the carburetor. The vacuum advance regulator also includes a pair of parallel adjustable throttles (5) and (5') that are in-line with the vacuum chamber (2). The two adjustable throttles provide the adjustment means that allows the vacuum force to set the spark timing.Type: GrantFiled: October 27, 1986Date of Patent: January 10, 1989Inventor: Sang H. Kim
-
Patent number: 4303408Abstract: Novel elements for the analysis of liquids which contain interferents for an analyte assay are described. Interference is reduced in multizone elements by the presence of an interferent-removing zone between the point of introduction of the liquid and the assay-indicator zone wherein the interferent-removing zone comprises a discontinuous phase within a continuous phase. An interferent-removing material is present in the discontinuous phase and the continuous phase is permeable to the analyte, its products and/or the liquid being analyzed.Type: GrantFiled: February 5, 1980Date of Patent: December 1, 1981Assignee: Eastman Kodak CompanyInventors: Sang H. Kim, Richard W. Spayd
-
Patent number: 4272328Abstract: An ion-selective electrode for analyzing CO.sub.2 concentration in a liquid sample comprises a support having thereon a metal zone, a metal halide zone, an electrolyte zone, a zone comprising a membrane comprising an ionophore and a zone comprising a hydrophilic binder and a buffer in an amount sufficient to provide a solution having a pH in the range of about 7.5 to 9.5 when wetted with about 5 .mu.l of liquid.Type: GrantFiled: December 5, 1979Date of Patent: June 9, 1981Assignee: Eastman Kodak CompanyInventors: Sang H. Kim, Hao-jan Chang
-
Patent number: 4263343Abstract: A reference element for ion-selective membrane electrodes is prepared by coating portions of a layer of silver with a composition comprising a metal salt electrolyte, a hydrophilic binder and a membrane of the group consisting of an oxidizing agent and a silver halide emulsion.Type: GrantFiled: August 13, 1979Date of Patent: April 21, 1981Assignee: Eastman Kodak CompanyInventor: Sang H. Kim
-
Patent number: 4199411Abstract: Halide, especially chloride and bromide, ion-sensitive devices which are insensitive to uric acid, and other interfering materials while demonstrating extended shelf lives, are described. Such devices comprise a silver halide layer bearing a thin cellulose ester layer which contains at least one polyol having from 2 to 6 hydroxyl groups.Type: GrantFiled: October 31, 1978Date of Patent: April 22, 1980Assignee: Eastman Kodak CompanyInventor: Sang H. Kim
-
Patent number: 4199412Abstract: Halide ion-sensitive devices and methods for their use are described. The devices contain a halide ion-permeable overlayer which is superposed on a layer of silver halide and meets certain criteria of thickness and permeability and/or certain compositional criteria. The methods involve bringing a portion of a solution to be analyzed into contact with the halide ion-permeable overlayer and, within a selected time thereafter, measuring the difference in potential between the portion of solution and the silver halide layer.Type: GrantFiled: October 31, 1978Date of Patent: April 22, 1980Assignee: Eastman Kodak CompanyInventors: Charles J. Battaglia, Denise S. Secord, Sang H. Kim
-
Patent number: 4171246Abstract: A device and a method are disclosed for determining ion activity in liquids by the use of electrodes, particularly comprising an electrode mounting frame and transport means for promoting ionic migration between electrodes in the frame. Preferably, such electrodes are ion-selective electrodes.Type: GrantFiled: July 14, 1977Date of Patent: October 16, 1979Assignee: Eastman Kodak CompanyInventors: David P. Hamblen, Clyde P. Glover, Sang H. Kim