Patents Represented by Attorney Gary M. Nath & Associates Nath
  • Patent number: 6008143
    Abstract: A metal organic chemical vapor deposition apparatus comprising a source ampule, a liquid micro-pump, a vaporizer equipped with a solvent supply means, and a reactor. A reactant dissolved in a solvent in the source ampule is transferred to the vaporizer by the liquid micro-pump. A sufficient amount of the solvent is additionally fed to the vaporizer by the solvent supply means, concurrently with the transfer, and vaporized along with the reactants. After being vaporized in the vaporizer, the reactant is injected to the reactor by carrier gas and deposited on a semiconductor substrate to form a high dielectric thin film. By virtue of the additional supplied solvent, the recondensation of the reactant in the vaporizer, which is attributed to the separation of the solvent from the reactant, can be prevented in the vaporizer and in the transfer line between the vaporizer and the reactor.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: December 28, 1999
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventors: Yong Sik Yu, Yong Ku Baek, Young Jin Park, Jong Choul Kim
  • Patent number: 5992017
    Abstract: A built-up camshaft having a carrying tube and working members is manufactured by attaching the carrying tube to the working members using a tool. The working members have a mounting opening where a plurality of longitudinal "V" shaped splines are located. The working members are placed on the tube and the tube is expanded mechanically using a tool by applying pressure from the inside until the splines of the working members are pressed into the body of the tube. The tube is expanded by the tool so as to form at least three oval-shaped protrusions on the outer surface of the tube. The protrusions are uniformly distributed around the circumference of the tube and are at least wide enough to engage two adjacent splines.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: November 30, 1999
    Inventors: Alexei Petrovich Grafchev, Mikhail Fedorovich Shiryaev, Elena Pavlovna Sekretoya, Evgeny Petrovich Tsiberev, Georgy Vladimirovich Linetsky, Adolf Veniaminovich Skoblo
  • Patent number: 5973981
    Abstract: A stress test apparatus and method for a semiconductor memory device with a plurality of memory cell arrays. The stress test apparatus comprises a plurality of plate terminals connected to one another, each of the plate terminals being connected to a plurality of storage capacitors, first and second switching elements connected in common to the plate terminals, a plate voltage generator connected to the first switching element, a stress signal generator connected to the second switching element, and a switching control signal generator for generating a switching control signal to control the first and second switching elements. According to the present invention, a cell plate voltage is applied and varied to stress the storage capacitors without driving word lines. Therefore, the storage capacitor stressing operation is simply performed, the stress test time is reduced and the cost is cut down.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: October 26, 1999
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventor: Jae Jin Lee
  • Patent number: 5964770
    Abstract: A medical device such as a stent, surgical staple, bone anchoring device or bone fixation device, intended to be deployed within the body, composes a shape memory alloy (SMA) portion with an austenitic and unaustenitic state with different memorized configurations in each of these states. The SMA which is initially in an initial configuration in which it can be placed into position within the body, can be mechanically deformed into an operational configuration in which it remains deployed within the body.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: October 12, 1999
    Assignee: Litana Ltd.
    Inventors: Josef Flomenblit, Nathaly Budigina, Jacob Richter
  • Patent number: 5959265
    Abstract: Sound absorber comprising a large number of tubular resonators (10) whose sound orifices A.sub.o are adjacent to a common surface A and are distributed in such a way that the interaction zones A.sub.w of these individual sound orifices A.sub.o are distributed as far as possible over the whole surface and at the same time do not substantially overlap. Preferred embodiments consist of extruded plastic shaped parts (16) or of metallic shaped parts (7, 9) which are firmly connected to one another and have suitable mechanical rigidity and acoustic hardness.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: September 28, 1999
    Assignee: Rieter Automotive (International) AG
    Inventor: Robert H. Van Ligten
  • Patent number: 5955606
    Abstract: N-vinyllactam derivatives protected at the 3-position are provided and represented by the following formula (I). These are polymerized into homo- and copolymers for use in microlithography of semiconductor manufacture. The polymers are used as a photoresist material suitable for a deep UV process so that pictures of high sensitivity and high resolution can be obtained. In addition, ultrafine circuits can be formed and an exceptional improvement in pattern formation can be accomplished through the use of the photoresist of the invention.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: September 21, 1999
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventors: Jin Baek Kim, Min Ho Jung, Kyeong Ho Chang
  • Patent number: 5952006
    Abstract: Topical gelled compositions comprising a drug for treating impotency dispersed within a polymer matrix and treatments using the complex.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: September 14, 1999
    Assignee: L.A.M. Pharmaceuticals, LLC
    Inventors: Alan Drizen, Peter Rothbart, Gary M. Nath
  • Patent number: 5947114
    Abstract: A central solar receiver comprising a tubular housing with a central axis, a radiation admitting aperture and an absorber chamber having an outer wall, two oppositely located ends, an inner-wall-forming substantially tubular transparent window co-axial with the tubular housing. The solar receiver further comprises injection means near a first of the oppositely located ends and at least one egress opening means near a second of the oppositely located ends. The injection means are capable of injecting into the absorber chamber a multicomponent fluid mixture comprising at least one radiation absorbing component and are so designed that the fluid mixture is injected into the absorber chamber adjacent and essentially tangentially to the outer wall, whereby contact between the mixture and the window is reduced. The egress opening enables the egress of the fluid mixture from the absorber chamber.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: September 7, 1999
    Assignee: Yeda Research and Development Company Ltd.
    Inventors: Avi Kribus, Pinchas Doron, Jacob Karni
  • Patent number: 5948252
    Abstract: A filtering device provided a horizontal drum in which a filter layer made of granular filter material and a space portion are formed in a vertical direction within its interior; a crude water introducing/dirty water discharging first water flow pipe which passes through an axial portion of the horizontal drum from the outside of the horizontal drum and whose a crude water introducing/dirty water discharging first water flow portion is located in the space portion; and a filtered water introducing/washing water discharging second water flow pipe which passes through an axial portion of the horizontal drum from the outside of the horizontal drum and whose a filtered water introducing/washing water discharging second water flow portion is located in an interior of the filter layer.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: September 7, 1999
    Assignee: Takara Industries Co., Ltd.
    Inventors: Takasi Takarabe, Hironobu Nakatani
  • Patent number: 5945123
    Abstract: The present disclosure relates to novel dosage forms, drug delivery regimens, methods and pharmaceutical compositions which optimize the therapeutic effects of active therapeutic substances through the application of the concept of uneven dosing.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: August 31, 1999
    Assignee: K-V Pharmaceutical Company
    Inventor: Victor M. Hermelin
  • Patent number: 5937777
    Abstract: The invention is a monohull water-borne craft comprising a hull having a main portion and an opposed pair of stabilizers, the stabilizers being positioned on opposite sides of the main hull portion and being disposed closely adjacent to the main hull portion. The stabilizers may be elongate and arranged with their long axes extending along the main hull portion to form pods. The stabilizers may be integral with the main hull portion or may be movable, e.g. to enable variable geometry to give active buoyancy and/or ballast and/or assistance in steering or stability. The stabilizers may carry propulsion means, fuel tanks, active ballast tanks or the like. The stabilizers may thus be single function e.g. to provide buoyancy, ballast or to house equipment such as propulsion means or may be multifunctional to combine one or more of such functions. The craft may be a power boat or a sail craft and may be convertible between power and sail.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: August 17, 1999
    Assignee: Mission Yachts PLC
    Inventor: Farad Azima
  • Patent number: 5938280
    Abstract: An arm rest for a vehicle seat includes a support bracket to be fixed to a seat back frame of the vehicle seat, the support bracket being formed with a groove at a rear edge side on an upper portion thereof; an arm rest main body rotatably supported to the support bracket; and an fitting pin to be provided so as to project from the seat back frame, the fitting pin is fitted into the groove formed in the support bracket. The fitting pin is moved backward together with the seat back frame along the groove of the support bracket when an impact stress in a direction where the seat back is inclined backwardly is applied to the seat back.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: August 17, 1999
    Assignee: Ikeda Bussan Co., Ltd.
    Inventor: Akihiro Hoshino
  • Patent number: 5932744
    Abstract: The instant invention provides a process for the industrial preparation of cis-hexahydroisoindoline derivatives in high yields and stereoselective manner. The instant invention relates to a process for the preparation of cis-hexahydroisoindoline derivative of formula II ##STR1## wherein R.sup.2 is hydrogen, alkyl, benzyl, acyl or alkoxycarbonyl, by catalytic reduction of isoindoline derivative of formula I ##STR2## wherein R.sup.1 is hydrogen, alkyl, benzyl, acyl or alkoxycarbonyl, wherein the catalytic reduction is carried out in the presence of a ruthenium, a rhodium or a palladium catalyst.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: August 3, 1999
    Assignee: Yuki Gosei Kogyo Co., Ltd.
    Inventors: Yasushi Hanzawa, Masahiro Kusano, Hitoshi Koike
  • Patent number: 5929176
    Abstract: A vinyl 4-tetrahydropyranyloxybenzal-vinyl 4-hydroxybenzal-vinyl tetrahydropyranyl ether-vinyl acetate copolymer, a vinyl 4-tetrahydropyranyloxybenzal-vinyl tetrahydropyranyl ether-vinyl acetate copolymer and a preparation method thereof are provided. The copolymers have excellent transparency because they are very low in optical absorbance in the deep uv range. In addition, the acetal structure in the backbone and in the substituted groups endows the photoresist of the copolymer with superior dry etch resistance.
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: July 27, 1999
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventors: Jin Baek Kim, Hyun Woo Kim, Jin Seuk Kim
  • Patent number: 5926427
    Abstract: A power line noise prevention circuit for a semiconductor memory device which can suppress noises on supply and ground voltage lines with no conventional degradation in operation speed when internal circuits consuming a large current amount are sequentially operated. When a plurality of data output buffers output high data at the same time, the power line noise prevention circuit applies a high voltage to the supply voltage line for the operation time to prevent a supply voltage from being reduced in level. To the contrary, when a plurality of data output buffers output low data at the same time, the power line noise prevention circuit applies a substrate voltage to the ground voltage line for the operation time to prevent a ground voltage from being increased in level.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: July 20, 1999
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventor: Yong Ki Kim
  • Patent number: 5924306
    Abstract: A method for gas mixture demethanization is suitable for decreasing the loss of the target product (ethylene) and power requirements for gas mixture demethanization process.
    Type: Grant
    Filed: December 24, 1997
    Date of Patent: July 20, 1999
    Inventor: David Pavlovich Sinelnikov
  • Patent number: 5923607
    Abstract: An apparatus and a method for enlarging a metal line pitch of a semiconductor memory device. The metal line enlargement apparatus comprises a first transfer circuit for transferring data amplified by bit line sense amplifiers to data bus lines in response to an output signal from a column decoder, and a second transfer circuit for transferring the data amplified by the bit line sense amplifiers to the first transfer circuit in response to first and second bit line sense amplifier group selection signals which are generated by decoding a column address. According to the present invention, the bit line sense amplifiers are effectively connected to the data bus lines to increase layout and output line pitches of the column decoder. Therefore, a design margin in a cell core region can be secured and a difficulty in a metal process can be reduced.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: July 13, 1999
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventor: Jung Won Suh
  • Patent number: D412062
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: July 20, 1999
    Assignee: IDT International Inc.
    Inventors: Don W. Potter, Stephen C. Smith
  • Patent number: D416313
    Type: Grant
    Filed: March 19, 1998
    Date of Patent: November 9, 1999
    Assignee: J.C. Decaux International
    Inventor: Norman Foster
  • Patent number: D423492
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: April 25, 2000
    Assignee: Matra Communication
    Inventor: Marc Renard