Patents Represented by Attorney, Agent or Law Firm Pillsbury Madison & Sutro
  • Patent number: 6232728
    Abstract: In a discharge lamp apparatus for a vehicle, it is determined that a grounded condition is present when a lamp voltage is less than a predetermined voltage and a lamp current is less than a predetermined current. Electric power supply to the lamp is stopped temporarily in response to the determination of the grounded condition, and then the lighting operation is restarted again. If the grounded condition is determined again, the above operation is repeated. If this repetition continues for a predetermined period, the lighting operation is disabled continuously. In controlling the lamp, a voltage of a battery is boosted by a voltage booster transformer, which is turned on and off by a MOS transistor so that electric power supplied to the lamp is duty-controlled. An upper limit is set to the duty ratio, and the upper limit is increased as the lamp current decreases, so that the lighting characteristics of the lamp is improved.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: May 15, 2001
    Assignees: Denso Corporation, Koito Manufacturing Co., Ltd.
    Inventors: Noboru Yamamoto, Goichi Oda, Tomoyuki Funayama
  • Patent number: 6230594
    Abstract: The present invention is a power-operated screwdriving device configured to be used with a rotary power source and a supply of collated screws. The device comprises a housing structure and a feeding assembly defines a drive track carried by the housing and providing a workpiece engaging surface. The drive track is configured to receive a lead screw from the supply. A rotatable screw engaging bit member is constructed and arranged to be operatively connected to the rotary power source such that the rotary power source rotates the screw engaging bit member during a screwdriving operation. The rotatable screw engaging bit member is movable relative to the drive track and the workpiece engaging surface such that, when the workpiece engaging surface is engaged with the surface of the workpiece, rotation of the bit member and relative movement between the bit member and the drive track drives the lead screw into the workpiece during the screwdriving operation.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: May 15, 2001
    Assignee: Stanley Fastening Systems, L.P.
    Inventors: David B. Jalbert, David J. Buzzeo, James A. Russell
  • Patent number: 6232378
    Abstract: The invention provides a process for incorporating an active substance in an object comprised partly or entirely of plastic which contains a dendrimer.
    Type: Grant
    Filed: March 23, 1999
    Date of Patent: May 15, 2001
    Assignee: DSM N.V.
    Inventors: Peter E. Froehling, Ellen M. M. de Brabander-van den Berg, Hubertus A. M. Mostert
  • Patent number: 6231798
    Abstract: There is provided a process for producing a multi-layer molded product having a plurality of thermoplastic resin layers. This process provides for (i) a step of supplying first and second molten thermoplastic resins each through first and second resin supplying gates which are temperature-controllable independently of each other, to between female and male molds kept in an open state with a time difference being provided between supply starts of the first and second resins, and (ii) a step of closing the female and male molds after completion of supply of the first and second resins. The process enables production of high-quality multi-layer molded products having a plurality of resin layers with good repeatability under relatively low resin supply pressure and by single mold closing. Further, high-quality multi-layer molded products can readily be produced without restrictions on materials used.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: May 15, 2001
    Assignee: Sumitomo Chemical Company, Ltd.
    Inventors: Masahito Matsumoto, Hitoshi Murotani, Satoru Funakoshi, Shigeyoshi Matsubara
  • Patent number: 6230576
    Abstract: A single actuator such as an electric motor is used to actuate a shift range changing mechanism of an automatic transmission. The motor has a plurality of torque generating units each of which is capable of generating a torque sufficient to effect any shift range changes of the shift range changing mechanism. All of the torque generating units are driven electrically normally in response to a shift range change command. Operation of each torque generating unit is monitored separately from each other. When one of the torque generating units fails in operation, the torque generating unit in failure is not driven but the other torque generating units are driven to effect a shift range change. The failure of the torque generating units is indicated on an indicator in a vehicle. The motor may be a brushless type or a reluctance type.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: May 15, 2001
    Assignee: Denso Corporation
    Inventors: Yoshichika Yamada, Masashi Hori, Hironori Asa
  • Patent number: 6229512
    Abstract: There is provided a display method of a flat display unit arranged so as to prevent an abnormality of a screen which is otherwise caused by coupling by inhibiting homo-polar video signals from being sampled within a sample and hold circuit having two circuits. Positive and negative polar video signals are sampled always alternately in A and B circuits of the respective sample and hold circuits of a signal line driving section by keeping the polarity of a video signal voltage before non-displaying timing same with that of the non-displaying timing, by stopping to switch the two systems of the sample and hold circuits and to output a signal when the non-displaying timing.
    Type: Grant
    Filed: January 27, 1999
    Date of Patent: May 8, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Koji Shigehiro
  • Patent number: 6229042
    Abstract: The invention relates to a process for the preparation of compounds of the general formula I in which R1 and R2 are identical or different and are a C1-C20-alkyl group, C3-C12-cycloalkyl group, C7-C12-aralkyl group or a mono- or binuclear aryl group, in which a ketone of the formula III or IV in which R1 and R2 have the above meaning, is asymmetrically hydrogenated.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: May 8, 2001
    Assignee: ASTA Medica Aktiengesellschaft
    Inventors: Rainer Gewald, Gunter Laban
  • Patent number: 6230169
    Abstract: An annotation input section reads from a text file the individual data items constituting an annotation pasted in a specified annotation position on a text as a result of the annotation being inputted from an annotation input window and acquires the input positions of the annotation data items and information on their size. A annotation image magnification change section produces a reduced or enlarged image of the display image of the annotation on the basis of the input positions of the individual annotation data items in the annotation and information on their size acquired by the annotation input section and a specified magnification indicated by a magnification storage section. A text and annotation image display section produces a display image by putting the reduced or enlarged display image of the annotation in the user-specified annotation position on a text display image and displays the display image on the text display screen of a display unit.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: May 8, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Hisayoshi Nagae
  • Patent number: 6227049
    Abstract: A single crystal silicon substrate (1) is bonded through an SiO2 film (9) to a single crystal silicon substrate (8), and the single crystal silicon substrate (1) is made into a thin film. A cantilever (13) is formed on the single crystal silicon substrate (1), and the thickness of the cantilever (13) in a direction parallel to the surface of the single crystal silicon substrate (1) is made smaller than the thickness of the cantilever in the direction of the depth of the single crystal silicon substrate (1), and movable in a direction parallel to the substrate surface. In addition, the surface of the cantilever (13) and the part of the single crystal silicon substrate (1), opposing the cantilever (13), are, respectively, coated with an SiO2 film (5), so that an electrode short circuit is prevented in a capacity-type sensor. In addition, a signal-processing circuit (10) is formed on the single crystal silicon substrate (1), so that signal processing is performed as the cantilever (13) moves.
    Type: Grant
    Filed: December 4, 1995
    Date of Patent: May 8, 2001
    Assignee: Denso Corporation
    Inventor: Tetsuo Fujii
  • Patent number: 6228660
    Abstract: An analytical test device useful for example in pregnancy testing, comprises a hollow casing (500) constructed of moisture-impervious solid material, such as plastics materials, containing a dry porous carrier (510) which communicates indirectly with the exterior of the casing via a bibulous sample receiving member (506) which protrudes from the casing such that a liquid test sample can be applied to the receiving member and permeate therefrom to the porous carrier, the carrier containing in a first zone a labelled specific binding reagent is freely mobile within the porous carrier when in the moist state, and in a second zone spatially distinct from the first zone unlabelled specific binding reagent for the same analyte which unlabelled reagent is permanently immobilized on the carrier material and is therefore not mobile in the moist state, the two zones being arranged such that liquid sample applied to the porous carrier can permeate via the first zone into the second zone, and the device incorporating mea
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 8, 2001
    Assignee: Conopco Inc.
    Inventors: Keith May, Michael Evans Prior, Ian Richards
  • Patent number: 6230125
    Abstract: The present invention relates to processing speech coding parameters in a telecommunication system. The speech coding parameters of a speech frame, produced by a speech encoder, are divided into groups, i.e. so-called virtual channels, in which speech parameter error correction, channel coding and processing of error-free or erroneous speech parameters are performed independently. At the receiving end, the processing (505) of erroneous and error-free speech parameters can thus be controlled independently on each virtual transmission channel (502) according to the quality of each virtual transmission channel. The speech parameters of the high-quality virtual channels of a speech frame can thus be processed as error-free, replacing the speech coding parameters of the low-quality virual channels only. The independently processed (505) speech parameters of the virtual channels are thus reassembled (507) into a speech frame, which is applied to decoding.
    Type: Grant
    Filed: January 5, 1998
    Date of Patent: May 8, 2001
    Assignee: Nokia Telecommunications Oy
    Inventor: Janne Vainio
  • Patent number: 6230120
    Abstract: In some call-switching systems, transmitted speech samples may be sent back (back-looping) to the sender from a telephone switching center if the switching center is unable to send the speech samples forward. When supplementary information is sent with the speech sample, back-looping may cause a problem if the sending device interprets the signal as originating from another device. To avoid this problem, transmitted samples are subjected to a check value calucation such as a checksum or a cyclic redundancy check. The check value is stored in memory and any received samples are subjected to a check value calculation and compared to the stored samples. If the comparison yields a match, then the device will know that the received samples originated from itself and can be properly handled.
    Type: Grant
    Filed: April 21, 1999
    Date of Patent: May 8, 2001
    Assignee: Nokia Communications Oy
    Inventor: Jyri Suvanen
  • Patent number: 6227050
    Abstract: A semiconductor mechanical sensor having a new structure in which a S/N ratio is improved. In the central portion of a silicon substrate 1, a recess portion 2 is formed which includes a beam structure. A weight is formed at the tip of the beam, and in the bottom surface of the weight in the bottom surface of the recess portion 2 facing the same, an electrode 5 is formed. An alternating current electric power is applied between the weight portion 4 and the electrode 5 so that static electricity is created and the weight is excited by the static electricity. In an axial direction which is perpendicular to the direction of the excitation of the weight, an electrode 6 is disposed to face one surface of the weight and a wall surface of the substrate which faces the same. A change in a capacitance between the facing electrodes is electrically detected, and therefore, a change in a physical force acting in the same direction is detected.
    Type: Grant
    Filed: October 28, 1998
    Date of Patent: May 8, 2001
    Assignee: Nippondense Co., Ltd.
    Inventors: Tetsuo Fujii, Masahito Imai
  • Patent number: 6225735
    Abstract: A shadow mask is arranged to face an inner surface of a substantially rectangular face panel. The shadow mask has a substantially rectangular mask body which has a number of apertures for passing an electron beam, and a rectangular mask frame which supports a peripheral edge portion of the mask body. The mask body is curved in a short axis direction, and is fixed to the mask frame in a state that an internal stress of a direction making small a radius of curvature of the short axis direction is applied.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: May 1, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shinichiro Nakagawa, Shinji Ohama, Norio Shimizu
  • Patent number: 6224813
    Abstract: Disclosed is a method for controlling the temperature of a mold for injection molding. The temperature of a front surface portion of an upper mold neighbored a gate which is connected to a spool to which the melted resin is injected through a runner, is controlled as 65-75° C. The temperature of a side surface portion of the upper mold between the front surface portion and a parting line, is controlled as 45-55° C. Then, a cavity portion corresponding to the upper mold is formed. The temperature of a core portion which is positioned at a concave portion of a mould product, is controlled as 35-45° C. The generation of a weld line or a chromic aberration can be restrained.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: May 1, 2001
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Jae Eon Chang
  • Patent number: 6226202
    Abstract: A flash memory card includes one or a plurality of flash memories and a controller having an interface connected to a host computer to store card attribute information to be presented to the host computer at a predetermined storage position in the flash memory.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: May 1, 2001
    Assignee: Tokyo Electron Device Limited
    Inventor: Shuichi Kikuchi
  • Patent number: 6221689
    Abstract: A hole is generated in a substrate. A chip is connected to the substrate by using the chip receiving area of the substrate by using flip chip assembly. The hole is aligned to the chip receiving area of the substrate. Then, a underfill process is performed such that the space between the chip and the substrate will be encapsulated using liquid capsulated material. The liquid capsulated material is injected into the hole from the back side surface of the substrate to the front side surface of the substrate.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: April 24, 2001
    Assignee: Apack Technologies Inc.
    Inventors: Chong-Ren Maa, Albert Lin, Jin-Chyuan Biar
  • Patent number: 6222877
    Abstract: A method for performance monitoring of data transparent communication links, including a method wherein each symbol in an incoming data symbol stream is sampled at the center of each bit period to create a main line data bit stream, and concurrently sampled at a time instant displaced from the center of each bit period to create a second line data bit stream. During each bit period, the digital value of the second line data stream is compared with the digital value for the corresponding bit period in the main line. If the main line and second line digital values are the same, no error is indicated. If they are different, i.e. if, for example, the main line is bit “1” and the second line is bit zero, an error called a pseudo error is entered on a counter. The number of errors counted per number of bits or time is indicated as a pseudo error rate for each point of time displacement in the user-defined set.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: April 24, 2001
    Assignee: LuxN, Inc.
    Inventor: Madabusi Govindarajan
  • Patent number: RE37169
    Abstract: The invention relates to an ocular optics system which forms no intermediate image, is reduced in terms of size and weight with well-corrected aberrations, and is best suited for use on face- or head-mounted image display devices, and provides an ocular optics system 7 comprising three juxtaposed optical surfaces 3, 4 and 5, wherein a space defined by three optical surfaces 3, 4, and 5 is filled with a transparent medium having a refractive index greater than 1, at least two optical surfaces 3 and 4 of these three optical surfaces are defined by curved surfaces concave on a pupil position side of the optics system, and at least four reflections occur between curved surfaces 3 and 4.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: May 8, 2001
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Takayoshi Togino
  • Patent number: RE37175
    Abstract: An image display apparatus which enables observation of a clear image at a wide field angle with substantially no reduction in the brightness of the image, and which is extremely small in size and light in weight and hence unlikely to cause the observer to be fatigued. The apparatus includes an image display device (6) and an ocular optical system (9) for leading an image of the display device (6) to an observer's eyeball (1). The ocular optical system (9) has a first optical element (7) and a second optical element (8). The first optical element (7) has three surfaces, and a space formed by the surfaces is filled with a medium having a refractive index larger than 1.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: May 15, 2001
    Assignee: Olympus Optical Co., LTD
    Inventor: Koichi Takahashi