Patents Represented by Attorney, Agent or Law Firm Pillsbury Madison & Sutro
  • Patent number: 6448624
    Abstract: A semiconductor sensor chip is provided with a weight portion supported in a frame via beams whereby acceleration up to substantially ±1 G can be detected by utilizing piezoresistance effect of resistor elements formed on the beams. The semiconductor sensor chip is supported by a seat having a thermal expansion coefficient equivalent to that of the semiconductor sensor chip via the frame. The frame and the seat are adhered to each other by a flexible adhesive agent mixed with a plurality of resin beads functioning as spacers and under an adhesion state, air damping of the weight portion is carried out by setting a dimension of an air gap between the weight portion and the seat to a range of 7 through 15 &mgr;m.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: September 10, 2002
    Assignee: Denso Corporation
    Inventors: Seiichiro Ishio, Kenichi Ao, Minoru Murata, Yasuki Shimoyama, Tomohito Kunda, Norio Kitao
  • Patent number: 6443023
    Abstract: An electromagnetic switch for controlling an electric power supply to a starting motor is located in the periphery of one side of an output shaft in a radial direction thereof and coaxially with the output shaft. The electromagnetic switch has a motor contact connected with a power supply circuit for supplying brushes with electric power. The motor contact comprises a battery-side fixed contact formed integrally with a battery terminal, a motor-side fixed contact electrically connected with a positive brush through a lead wire and a plate, and a movable contact held by an end of a plunger. In the case where the electromagnetic switch is located not coaxially, the electromagnetic switch is shaped in a flat form and located in parallel with the output shaft so that the central axis thereof resides radially inside the outer periphery of a starting motor.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: September 3, 2002
    Assignee: Denso Corporation
    Inventors: Sadayoshi Kajino, Yoshiharu Tomida, Masahiro Soh
  • Patent number: 6427472
    Abstract: There is provided an air conditioner for a vehicle, which comprises a refrigerating cycle having a compressor (20), a water cooling cycle formed by a radiator (36) and a heat storage tank (50), which are switched by passage switching valves (46) and (48), and a water heating cycle formed by a heater core (38) and the heat storage tank (50).
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: August 6, 2002
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tadashi Nakagawa, Takayoshi Matsuno
  • Patent number: 6408317
    Abstract: A device takes as input an input bit stream and produces as output an output bit stream. A linear feedback shift register (LFSR) operates on the input bit stream and modifies the internal state of the LFSR if and only if a current bit value of the input bit stream differs from an immediately previous bit value of the input bit stream. A condenser having a compression factor N, operates on the input bit stream independently and asynchronously from the LFSR. The condenser produces a condensed value of the input bit stream. The condenser has a checksum register; a checksum accumulator register; and an adder for adding bits from the input bits stream to the checksum register. The low-order bit of the checksum register is shifted into the checksum accumulator register every N bits, and the condensed value produced by the condenser is the value in the checksum accumulator register.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: June 18, 2002
    Assignee: Integrated Device Technology, Inc.
    Inventor: Vladan Djakovic
  • Patent number: 6404335
    Abstract: A method of issuing a wireless tag includes a step of printing visual information corresponding to at least part of predetermined information to be stored in a nonvolatile memory of the tag on an image recording area of the tag, a step of writing the predetermined information into the memory by transmitting the information to the wireless tag by radio, and a step of reading the information written into the memory therefrom by radio and checking the read information with the predetermined information before writing. The number of checks made on a wireless tag is counted. A wireless tag for which the number of checks made reaches a predetermined number is recalled as defective.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: June 11, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tadayoshi Ohno, Tsuneshi Yokota
  • Patent number: 6401849
    Abstract: First and second dynamo-electrical machines are provided. A first rotor forming the first dynamo-electrical machine together with a second rotor is connected to either one of a front driving shaft and rear driving shaft. A second rotor forming the second dynamo-electrical machine together with a stator is connected to another one of the front driving shaft and rear driving shaft. As a result, a torque generated by the first dynamo-electric machine is transmitted to either one of the front and rear driving shafts, connected to the first rotor. A torque which subtracts a reaction torque caused by the torque generated by the first dynamo-electric machine from a torque generated by the second dynamo-electric machine is transmitted to another one of the front and rear driving shafts, connected to the second rotor.
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: June 11, 2002
    Assignee: Denso Corporation
    Inventors: Masahiro Seguchi, Keiichiro Banzai
  • Patent number: 6360055
    Abstract: Data on multiple stories or scenes are recorded on a recording medium so as to reduce the physical distance moved by a pickup at playback time and to suppress breaks or disturbances in reproduced video. A multi-scene program having a plurality of optionally selectable branch stories B0, B1, B2, B3, etc., is recorded between a branch point X and a connection point Y. The preceding main story of a video program, made up of video, sound, text and the like, branches off at branch point X to the branch stories, and at connection point Y connects to the succeeding main story in the video program. The recorded state between the branch point X and the connection point Y is such that the branch stories are each divided into multiple cells and the cells of the respective branch stories are recorded time-division multiplexed.
    Type: Grant
    Filed: August 10, 1998
    Date of Patent: March 19, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Toshihiko Kaneshige, Sigeru Todokoro, Tadashi Kojima
  • Patent number: 6354134
    Abstract: A solid electrolytic body has an inside space serving as a reference gas chamber. A sensing electrode and a reference electrode are formed on the surface of the solid electrolytic body. A heater is disposed in the reference gas chamber. A contact portion comprises a region where the heater is brought into contact with the inner surface of the solid electrolytic body and an opposing region on the outer surface of the solid electrolytic body. The sensing electrode includes at least part of the contact portion. A gas receiving surface region, exposed to the measuring gas, extends from an element tip to a position spaced by a distance L away from the element tip. At least part of the contact portion is located in a region extending from the element tip to a position spaced by a distance 0.4L away from the element tip. The sensing electrode is entirely located in a region extending from the element tip to a position spaced by a distance 0.8L away from the element tip.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: March 12, 2002
    Assignee: Denso Corporation
    Inventors: Tooru Katafuchi, Kiyomi Kobayashi, Namitsugu Fujii, Hiromi Sano
  • Patent number: 6353100
    Abstract: Process for the preparation of &egr;-caprolactam, in which in a step (a) a compound with the general formula: O=CH—(CH2)4—C(O)—R  (1) in which R is —OH, —NH2 or O—R′, in which R′ is an organic group with 1 to 10 carbon atoms, is contacted with ammonia and hydrogen in a suitable solvent at elevated pressure in the presence of a hydrogenation catalyst to a mixture of primary amino compounds and &egr;-caprolactam, followed by a separate second step (b) in which the primary amino compounds are reacted to &egr;-caprolactam, wherein the solvent in step (a) is an aqueous medium, including water, the yield to &egr;-caprolactam in step (a) is more than 10%, calculated on the initial molar amount of the compound according to formula (1), that &egr;-caprolactam is separated from the aqueous mixture obtained in step (a) by extraction and that the aqueous mixture resulting from the extraction, containing the primary amino compounds, is used in step (b).
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: March 5, 2002
    Assignees: DSM N.V., Du Pont de Nemours and Company
    Inventors: Rudolf P. M. Guit, Wim Buijs
  • Patent number: 6331500
    Abstract: The present invention relates to functionalized molecular sieves that are useful as shape-selective adsorbents and catalysts. The inventive molecular sieves have a crystalline framework and include micropores of substantially uniform size and shape formed therein. These micropores contain one or more accessible organic moieties that are linked to the crystalline framework by a carbon-silicon ond. Shape selectivity of the inventive molecular sieves may be modulated by varying the size and shape of the micropores (which is a function of the particular molecular sieve being synthesized) and the organic moiety incoporated therein.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: December 18, 2001
    Assignee: California Institute of Technology
    Inventors: Katsuyuki Tsuji, Christopher W. Jones, Mark E. Davis
  • Patent number: 6312625
    Abstract: In this process for producing a black body decoy flare, a composition which, when combusted, provides black body radiation is extruded. The compositions generally include from about 40% to about 70% metal such as magnesium or aluminum, from about 10% to about 40% polytetrafluoroethylene, and from about 8% to about 30% binder. Important to the operation of the invention is the production of carbon upon combustion of the composition. Accordingly, polyaromatic thermoplastics, such as polystyrene and dimethyl phthalate, serve as the binder.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: November 6, 2001
    Assignee: Cordant Technologies In.
    Inventors: Daniel B. Nielson, Dean M. Lester
  • Patent number: 6309747
    Abstract: A liquid curable resin composition for optical fibers comprising a polymer (a) having a number average molecular weight of 5,000 or more and containing at least two types of recurring ethylenic units, of which one type has a substituent group containing an ethylenically unsaturated group and the second type is substituted by a group —COOR3 (wherein R3 is a hydrogen atom or a hydrocarbon group having 1-30 carbon atoms), an aryl group, a cyano group, an alkyl group having 1-10 carbon atoms or by one or more halogen atoms.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: October 30, 2001
    Assignees: DSM N.V., Japan Synthetic Rubber Co., LTD
    Inventors: Mitsuhito Suwa, Zen Komiya, Yuji Takasugi, Takashi Ukachi
  • Patent number: 6307684
    Abstract: A zoom lens system for compact cameras comprising a first positive lens unit, a second positive lens unit and a third negative lens unit: the first lens unit comprising at least a positive lens component which is disposed on the object side, and a negative meniscus lens component which is disposed on the image side of the positive lens component and has a concave surface on the image side. The zoom lens system is configured to perform zooming by varying an airspace reserved between the first lens unit and the second lens unit as well as an airspace reserved between the second lens unit and the third lens unit, and has a high zoom ratio and high optical performance.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: October 23, 2001
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Noriyuki Iyama
  • Patent number: 6300197
    Abstract: In a method of manufacturing a semiconductor device having MIS field effect transistors (MIS-FETs) with gate insulating films of two or more different film thicknesses formed on the same silicon semiconductor substrate, first, impurity for enhancing the growth rate of a gate insulating film is selectively doped into an element region on which the gate insulating film is to be formed thick and which is contained in element regions in which the MIS-FETs are to be formed. On the other hand, impurity for lowering the growth rate of a gate insulating film is selectively doped into an element region on which the gate insulating film is to be formed thin and which is contained in the element regions in which the MIS-FETs are to be formed. Next, gate insulating films are formed on the respective element regions by use of the anodic oxidation method or the like.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: October 9, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Satoshi Inaba
  • Patent number: 6293356
    Abstract: A method of and system for optimizing bit rate of penetration while drilling substantially continuously determine an optimum weight on bit necessary to achieve an optimum bit rate of penetration based upon measured conditions and maintains weight on bit at the optimum weight on bit. As measured conditions change while drilling, the method updates the determination of optimum weight on bit.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: September 25, 2001
    Assignee: Noble Drilling Services, Inc.
    Inventors: Charles H. King, Mitchell D. Pinckard
  • Patent number: 6292561
    Abstract: The invention is directed to a digital mobile phone of a type using a subscriber identification module, the improvement being that there is an externally attached holder for at least two subscriber identification modules so that either can be readily selected by a switch for use in the same phone. There are also described flexible circuits that are used to connect the electrical contacts used conventionally for reading a subscriber identification module by the phone inside the phone that are able to slip through gaps that are naturally occurring between protective covers of the phone because of necessary manufacturing tolerances so that the external subscriber identification modules can be connected without prejudicing manufacturers warranties on any phone.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: September 18, 2001
    Assignee: Funge Systems Inc.
    Inventor: Keith Benson
  • Patent number: 6292670
    Abstract: In a method for maintaining a group call in a mobile communication system, a mobile station is registered to a first base station and starts a group call. A traffic channel is reserved by the first base station for the group call, and the mobile station changes over to communicating on the traffic channel reserved from the first base station. To ensure an uninterrupted group call, a ‘follow me’ function is activated for the group call. In response to activating the ‘follow me’ function for the group call and reservation of a traffic channel by the first base station for the group call, a traffic channel is reserved from each of the desired second base station adjacent to the first base station for the group call. When some of the mobile stations participating in the group call change over to using a second base station adjacent to the first base station, the mobile station changes over to communicating on the traffic channel reserved from the base station for the group call.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: September 18, 2001
    Assignee: Nokia Telecommunications Oy
    Inventors: Sirpa Kauria, Christina Lassfolk
  • Patent number: 6284460
    Abstract: Devices and techniques for hybridization of nucleic acids and for determining the sequence of nucleic acids. Arrays of nucleic acids are formed by techniques, preferably high resolution, light-directed techniques. Positions of hybridization of a target nucleic acid are determined by, e.g., epifluorescence microscopy. Devices and techniques are proposed to determine the sequence of a target nucleic acid more efficiently and more quickly through such synthesis and detection techniques.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: September 4, 2001
    Assignee: Affymetrix Inc.
    Inventors: Stephen P. A. Fodor, Robert J. Lipshutz, Xiaohua Huang
  • Patent number: 6285393
    Abstract: An object recognition apparatus that can recognize an object in an image acquired by an on-vehicle camera mounted on a vehicle with high efficiency and accuracy. A recognition processing is carried out in a cut off range, which is cut off from the image, and in which an object to be recognized is supposed to be present. The cut off range is obtained using support information supplied from a position detection device and/or an anti-lock brake device of the vehicle. Since the object in the image changes its position as the vehicle moves, the displacement must be estimated during the object recognition. The estimation requires camera attitude parameters of the on-vehicle camera with respect to the road, and the estimation is performed using support information supplied from the position detection device and/of the anti-lock brake device. This will improve the efficiency and accuracy of obtaining the camera attitude parameters.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: September 4, 2001
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Hiroshi Shimoura, Kenji Tenmoku
  • Patent number: RE37363
    Abstract: There is disclosed a lubricating oil composition which contains from about 100 to 450 parts per million of molybdenum from a molybdenum compound which is substantially free of active sulfur and about 750 to 5,000 parts per million of a secondary diarylamine. This combination of ingredients provides improved oxidation control and friction modifier performance to the lubricating oil. The composition is particularly suited for use as a crankcase lubricant.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: September 11, 2001
    Assignee: Ethyl Corporation
    Inventors: Vincent James Gatto, Mark Thomas Devlin