Patents Represented by Attorney, Agent or Law Firm Rosenman & Colin, LLP
  • Patent number: 7061954
    Abstract: A method for manufacturing a semiconductor optical waveguide comprises the steps of forming a core layer having an Al content which monotonically increases from the central part thereof to the film surface, and selectively oxidizing the core layer to obtain a peripheral, oxidized region and a central, non-oxidized region acting as a waveguide. The waveguide is tapered to have a circular mode field at the distal end thereof for efficiently coupling with an optical fiber.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: June 13, 2006
    Assignee: The Furukawa Electric Co. Ltd.
    Inventors: Norihiro Iwai, Kazuaki Nishikata, Akihiko Kasukawa
  • Patent number: 6584608
    Abstract: A computer-aided designing of a wiring pattern of a printed circuit board includes the steps of acquiring an electrical property of a component pin of a component to be connected to a wiring pattern by referring to a database, and defining a wiring-length limit for the wiring pattern in conformity with the electrical property of the component pin.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: June 24, 2003
    Assignee: Fujitsu Limited
    Inventors: Touru Kumada, Takao Yamaguchi, Junichi Kigoshi, Kazunori Kumagai
  • Patent number: 6538126
    Abstract: The present invention provides polynucleotides derived from cDNA of novel type of hepatitis C virus named Korean type hepatitis C virus (KHCV), polypeptides encoded therein, and antibodies directed against the polypeptides; and also provide diagnostics and vaccines employing any of the above materials as active ingredient(s).
    Type: Grant
    Filed: April 20, 1994
    Date of Patent: March 25, 2003
    Assignee: Lucky Limited
    Inventors: Joong Myung Cho, Yong Beom Lee, Young Woo Park, Kook Jin Lim, Deog Young Choi, Hong Seob So, Chun Hyung Kim, Sung Taek Kim, Jae Young Yang
  • Patent number: 6452786
    Abstract: A portable electronic device includes a main unit which has operation switches, and an operation panel which has operation buttons that press the operation switches and which is rotatably mounted on the main unit. The operation panel can be freely attached to and detached from the main unit and can be replaced with another operation panel if needed. The ability to replace the operation panel makes it possible to have multiple types of operation panels available and to select operation panels whose operation buttons are different and mount them on the main unit.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: September 17, 2002
    Assignee: Sony Computer Entertainment Inc.
    Inventors: Hiroki Ogata, Kazusato Tagawa
  • Patent number: 6446918
    Abstract: An apparatus for collection and holding debris in a flexible container includes a platform having a right panel, a center panel and a left panel. Each of the right panel and the left panel are at an angle to a plane defined by the center panel. There is a protrusion from the left side of the center panel and from the right side of the center panel and a ring attached to the platform.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: September 10, 2002
    Inventor: Ronit Knight
  • Patent number: 6444850
    Abstract: A fungicidal compound of formula (I) having a fluorovinyloxyphenyl moiety and stereoisomers thereof are useful for protecting crops from fungal diseases: wherein: X is CH or N; Y is O or S; Z is O or NH; R1 is hydrogen or CF3; and R2 is hydrogen, a C1-10 alkyl, naphthyl, thiophenyl or a phenyl group optionally carrying one or more substituents selected from the group consisting of C1-6 alkyl, halogen-substituted C1-6 alkyl, C1-6 alkoxy, phenoxy, halogen, and methylenedioxy radicals.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: September 3, 2002
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Chwang-Siek Pak, Bum-Tae Kim, No-Kyun Park, Gyung-Ja Choi, Heung-Tae Kim
  • Patent number: 6432617
    Abstract: The present invention relates to positive film formulations for obtaining color selection, through the use of balanced primary colors, and the method to obtain the same. Said formulations comprise an emulsion sensitive to any type of light and a photographically accepted vehicle. The thus obtained positive film formulations are suitable to establish trichromatisms and bichromatisms by employing previously balanced primary colors.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: August 13, 2002
    Inventor: Roberto Olvera-Camacho
  • Patent number: 6424171
    Abstract: A programmable logic LSI resolves a problem leaving some wiring resource extra upon realizing one circuit (some wiring cells are not used) and leaving some logical resource extra upon realizing another circuit (some logical cell are not used, and can realize both functions of logical resource and wiring resource with a single base cell. The base call for a programmable logic LSI which is formed by connecting a plurality of the base cells, includes a combined programmable circuit realizing a programmable logic circuit function and a programmable wiring circuit function, and a mode setting circuit for selectively making one of the programmable logic circuit function and the programmable wiring circuit function according to a mode information. Upon functioning as the programmable logic circuit, logical operation is performed with respect to an input signal input to the base cell to feed an output signal.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: July 23, 2002
    Assignee: NEC Corporation
    Inventors: Masato Motomura, Taro Fujii, Koichiro Furuta
  • Patent number: 6418116
    Abstract: A transmission system having an uninterrupted switchover function for a plurality of lines is disclosed. The aims are to prevent unnecessary switchover and to provide high quality transmission system even using low quality lines with a minimal hardware configuration of memories and a control circuit. On the transmitting side, a pulse for phase synchronization is inserted at the top of each signal frame. Such frame signals are branched to transmit on a plurality of lines. On the receiving side, an alarm or error in signals from lines is detected on a frame basis. Then, a line switchover is carried out at the unit of a frame after frame phases are synchronized. To synchronize the frame phases, elastic memories for producing variable amount of delay are used in addition to fixed-amount delay circuits. This enables to insert a sufficient amount of delay to generate required timings for detecting errors, controlling and performing a switchover etc.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: July 9, 2002
    Assignee: Fujitsu Limited
    Inventor: Hiroya Egoshi
  • Patent number: 6411290
    Abstract: In an image drawing device and method multiple shift amounts are set for shifting, with precision finer than one pixel, the drawing position when the RGB values of each pixel are to be drawn to a frame buffer, and the image is overwritten by drawing the RGB values into the respective frame buffer locations that correspond to the multiple shift amounts. In this way a point at coordinates is written to a first pixel when drawn for the first time, is written to a second pixel when drawn for the second time, is written to a third pixel when drawn for the third time and is written to the fourth pixel when drawn the fourth time.
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: June 25, 2002
    Assignee: Sony Computer Entertainment, Inc.
    Inventor: Nobuo Sasaki
  • Patent number: 6410134
    Abstract: A silicone coating composition comprising an alkylvinylpolysiloxane, an alkylhydrogenpolysiloxane, a platinum complex catalyst and a water-soluble polyester resin is advantageously used for the preparation of a polyester release film having good release property and improved rub-off resistance.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: June 25, 2002
    Assignee: SKC Limited
    Inventors: Eung-Sik Park, Jong-Seob Won
  • Patent number: 6409830
    Abstract: An organometallic compound of formula LiOR′.(R′O)MR2 is vaporized at a low temperature and employed in a CVD process of a heterometallic oxide film of the LiMO2 type, wherein M is a Group 13 element such as Al or Ga; R is a C1-10 alkyl group; and R′ is a C2-10 alkyl group.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: June 25, 2002
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Yun-Soo Kim, Won-Yong Koh, Su-Jin Ku
  • Patent number: 6403412
    Abstract: A method fabricates a bottle shaped trench by providing a substrate with a substantially vertical trench therein and a collar about an upper interior portion of the trench and isotropically HCl etching a lower interior portion of the trench under the collar for expansion thereof, wherein the expanded lower interior portion has a wider cross section than that of the upper interior portion of the trench. Further, the method performs potential in-situ process integration with a gas phase doping in the same tool as the one that performed the gas phase etching process.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: June 11, 2002
    Assignee: International Business Machines Corp.
    Inventors: Laertis Economikos, Byeongju Park
  • Patent number: 6404454
    Abstract: An optical printer performs optical writing on a film and includes a print head with a luminous source and a plurality of filters selectively set to the luminous source by moving toward a predetermined direction with respect to the luminous source, and a moving unit for allowing the print head to be reciprocated in the predetermined direction. A transfer unit is disposed the print head to allow the filters to be moved by a regular amount, i.e., a predetermined pitch(“c” to “e”), thereby setting a desired filter to the luminous source. The transfer unit is operated to by the regular amount from one end side of the moving region of the print head. Further, a reset unit is disposed to the print head and is operated when the print head is moved more than the moving region from one end side ad of the moving region of the print head, forcing the moved filter to return to the original position.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: June 11, 2002
    Assignee: Futaba Denshi Kogyo Kabushiki Kaisha
    Inventors: Toshiaki Nakahara, Yukihiko Shimizu
  • Patent number: 6404881
    Abstract: In an exchange including: a call processing unit for processing a call occuring at any one of plural subscriber lines, a main line, or a private line; a switch unit for establishing the call route determined by the call processing unit; and a plurality of trunks for separately connecting to any one of these lines; wherein the exchange comprises: a single or plural decision units for determining whether an audio frequency signal or line signal which separately indicates a state of change of level of the call signal, is received or not, in the route formed by these lines; and a single or plural variable units separately provided between each of routes and a corresponding port of the switch, and performing the change of the level based on the state indicated by the audio frequency signal or line signal which gives a result of decision by the decision unit, for the level of the call signal transmitted toward the route in which the result of the decision is true.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: June 11, 2002
    Assignee: Fujitsu Limited
    Inventors: Shigeru Murata, Takamitsu Shirai
  • Patent number: 6399990
    Abstract: The present invention relates generally to protection of integrated circuits from electrostatic discharges and more specifically to the use of devices formed in isolated well regions for electrostatic discharge protection. One aspect of the present invention is an ESD protection circuit that includes a first FET and a second FET. The drain of the first FET is coupled to an ESD susceptible node and the source of the first FET is coupled to a first voltage terminal. The gate and a well of the first FET are coupled together and to the drain of the second FET. The source of the second FET is coupled to the first voltage terminal. The gate of the second FET is coupled to a second voltage terminal. The second voltage terminal is connected to a voltage source that is at the first voltage when the circuit is not powered, and at a voltage above the threshold voltage of the second FET when the circuit is powered. The well in which the first FET is formed is electrically isolated from other wells in the substrate.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: June 4, 2002
    Assignee: International Business Machines Corporation
    Inventors: Ciaran J. Brennan, Mark D. Jacunski, Michael A. Killian, William R. Tonti
  • Patent number: 6400566
    Abstract: It is an object of the present invention to provide an electronic device which realizes efficient cooling of heat-generation components and which can be downsized. According to the electronic device of the present invention, a rectangular-shaped heat sink that absorbs heat of the CPU and is placed in a cooling air intake channel (71) upstream of the power source unit. By blowing low-temperature cooling air that does not contain heat radiating from the power source unit onto the rectangular heat sink, the rectangular heat sink is cooled, and CPU heat dissipation is promoted. In this way, the CPU can be efficiently cooled so that the electronic device can be made smaller than conventional devices of the foregoing type.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: June 4, 2002
    Assignee: Sony Computer Entertainment, Inc.
    Inventor: Yasuhiro Ootori
  • Patent number: 6400222
    Abstract: A linearizer is provided which is capable of scaling its circuit down and making it lightweight, of lowering power consumption and of facilitating an input-output calibration. The linearizer is so configured that a first resistor is connected in series to a second resistor, a third resistor is connected to a connecting point between the first and second resistors, an FET (Field Effect Transistor) as a variable resistance element is connected to the third resistor, an inductor is connected between the FET and a GND, and the first, second and third resistors and the FET constitute a T-type attenuator.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: June 4, 2002
    Assignee: NEC Corporation
    Inventor: Kazutoshi Takahashi
  • Patent number: D463828
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: October 1, 2002
    Assignee: Aristocrat Technologies Australia Pty Ltd.
    Inventor: Ian Frederick Johnson
  • Patent number: D466282
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: December 3, 2002
    Assignee: Showoff Corp.
    Inventor: Michelle K. Wardlaw