Patents Represented by Attorney, Agent or Law Firm Rosenman & Colin, LLP
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Patent number: 7061954Abstract: 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: GrantFiled: June 25, 2001Date of Patent: June 13, 2006Assignee: The Furukawa Electric Co. Ltd.Inventors: Norihiro Iwai, Kazuaki Nishikata, Akihiko Kasukawa
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Patent number: 6584608Abstract: 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: GrantFiled: April 9, 1998Date of Patent: June 24, 2003Assignee: Fujitsu LimitedInventors: Touru Kumada, Takao Yamaguchi, Junichi Kigoshi, Kazunori Kumagai
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Patent number: 6538126Abstract: 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: GrantFiled: April 20, 1994Date of Patent: March 25, 2003Assignee: Lucky LimitedInventors: 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
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Patent number: 6452786Abstract: 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: GrantFiled: March 15, 2000Date of Patent: September 17, 2002Assignee: Sony Computer Entertainment Inc.Inventors: Hiroki Ogata, Kazusato Tagawa
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Patent number: 6446918Abstract: 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: GrantFiled: June 20, 2000Date of Patent: September 10, 2002Inventor: Ronit Knight
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Patent number: 6444850Abstract: 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: GrantFiled: February 8, 2000Date of Patent: September 3, 2002Assignee: Korea Research Institute of Chemical TechnologyInventors: Chwang-Siek Pak, Bum-Tae Kim, No-Kyun Park, Gyung-Ja Choi, Heung-Tae Kim
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Patent number: 6432617Abstract: 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: GrantFiled: October 31, 2000Date of Patent: August 13, 2002Inventor: Roberto Olvera-Camacho
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Patent number: 6424171Abstract: 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: GrantFiled: October 28, 1999Date of Patent: July 23, 2002Assignee: NEC CorporationInventors: Masato Motomura, Taro Fujii, Koichiro Furuta
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Patent number: 6418116Abstract: 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: GrantFiled: April 5, 2000Date of Patent: July 9, 2002Assignee: Fujitsu LimitedInventor: Hiroya Egoshi
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Patent number: 6410134Abstract: 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: GrantFiled: August 9, 2000Date of Patent: June 25, 2002Assignee: SKC LimitedInventors: Eung-Sik Park, Jong-Seob Won
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Patent number: 6409830Abstract: 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: GrantFiled: June 1, 2000Date of Patent: June 25, 2002Assignee: Korea Research Institute of Chemical TechnologyInventors: Yun-Soo Kim, Won-Yong Koh, Su-Jin Ku
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Patent number: 6411290Abstract: 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: GrantFiled: March 29, 1999Date of Patent: June 25, 2002Assignee: Sony Computer Entertainment, Inc.Inventor: Nobuo Sasaki
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Patent number: 6404881Abstract: 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: GrantFiled: December 17, 1996Date of Patent: June 11, 2002Assignee: Fujitsu LimitedInventors: Shigeru Murata, Takamitsu Shirai
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Patent number: 6403412Abstract: 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: GrantFiled: May 3, 1999Date of Patent: June 11, 2002Assignee: International Business Machines Corp.Inventors: Laertis Economikos, Byeongju Park
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Patent number: 6404454Abstract: 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: GrantFiled: February 4, 2000Date of Patent: June 11, 2002Assignee: Futaba Denshi Kogyo Kabushiki KaishaInventors: Toshiaki Nakahara, Yukihiko Shimizu
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Patent number: 6400566Abstract: 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: GrantFiled: September 5, 2000Date of Patent: June 4, 2002Assignee: Sony Computer Entertainment, Inc.Inventor: Yasuhiro Ootori
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Patent number: 6400222Abstract: 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: GrantFiled: June 15, 2000Date of Patent: June 4, 2002Assignee: NEC CorporationInventor: Kazutoshi Takahashi
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Patent number: 6400205Abstract: A diode detection circuit is capable of obtaining an ideal rectification voltage even the case of a minute input high-frequency voltage. The circuit includes a first diode that accepts an AC signal; a first parallel circuit consisting of a resistor and a capacitor, the first parallel circuit accepting a detection output from the first diode; a first operational amplifier having a positive input terminal that accepts a charging voltage for the capacitor of the first parallel circuit; a second diode that accepts an output from the first operational amplifier; a first switching circuit consisting of a first switch and an oscillator, the first switching circuit providing a control of the ratio of conduction to non-conduction of the first and second diodes; a second parallel circuit consisting of a resistor and a capacitor, the second parallel circuit accepting an output from the first switching circuit.Type: GrantFiled: April 23, 2001Date of Patent: June 4, 2002Assignee: Fujitsu LimitedInventor: Yasuhiro Yokota
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Patent number: D463828Type: GrantFiled: July 29, 1999Date of Patent: October 1, 2002Assignee: Aristocrat Technologies Australia Pty Ltd.Inventor: Ian Frederick Johnson
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Patent number: D466282Type: GrantFiled: December 30, 1999Date of Patent: December 3, 2002Assignee: Showoff Corp.Inventor: Michelle K. Wardlaw