Patents Represented by Law Firm Sixbey, Friedman & Leedom
  • Patent number: 6034675
    Abstract: An input interval of a keyboard of an input device is measured. The luminance of a display device is changed in accordance with the measured input interval of the keyboard.
    Type: Grant
    Filed: July 3, 1995
    Date of Patent: March 7, 2000
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Shunpei Yamazaki
  • Patent number: 6029902
    Abstract: An improved unit fuel injector is provided which effectively and precisely controls the timing of fuel injection by avoiding outside influences acting on a timing plunger. The unit fuel injector includes a timing plunger positioned between upper and lower plungers, a timing chamber positioned between the timing plunger and upper plunger and a spring chamber positioned between the timing plunger and a metering chamber for containing one or more springs for biasing the plungers. A spring chamber drain valve device is provided for directing fuel in the spring chamber to a low pressure drain while isolating the spring chamber from the low pressure drain system thereby preventing pressure variations in the drain system from entering the spring chamber and acting on the timing plunger. In addition, a scavenge circuit is provided to direct a scavenging flow of fuel and combustion gas from the injector directly to the low pressure drain without communication with the spring chamber.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: February 29, 2000
    Assignee: Cummins Engine Company, Inc.
    Inventors: Daniel K. Hickey, Daniel K. Vetters, Bruce E. Varney, Tibor Kiss
  • Patent number: 6029913
    Abstract: A swirl tip injector nozzle housing is provided for a fuel injector which includes a fuel atomization enhancing feature for creating effective fuel atomization and breakup during discharge from the injector. The fuel atomization enhancing feature includes a plurality of curvilinear spray holes having an angle of curvature equal to approximately 90 degrees. Fuel flowing from the inlet of each spray hole to the outlet is induced, by the 90 degree angle of curvature, to flow through a tangential flow path or swirl within the spray hole causing rapid spreading and breakup of the fuel jet spray upon exiting the outlet of the spray hole. The fuel atomization enhancing feature may also include positioning each spray hole so as to extend orthogonally from the interior surface of the fuel cavity to create optimal entry of the fuel into the tangential flow path.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: February 29, 2000
    Assignee: Cummins Engine Company, Inc.
    Inventors: Bradlee J. Stroia, Dennis M. Ashwill, Chad L. Buchanan
  • Patent number: 6030111
    Abstract: Molding sand of a used greensand mold is recycled by adding water and binder to sand particles fatigued by heating applied by a molten metal during molding and segregated from vigorous molding sand not directly heated by the molten metal and mixing the refreshed molding sand particles with the vigorous molding sand.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: February 29, 2000
    Assignee: Mazda Motor Corporation
    Inventors: Minoru Tokuyoshi, Toshisaburo Kimura, Takashi Suginaka
  • Patent number: 6030476
    Abstract: An insulating container comprising a container body having at least one side wall and a bottom wall with the side wall including a base layer, an insulating layer on at least a portion of the base layer and a printed pattern, mineral oil application or combination thereof on at least a portion of the surface of the insulating layer is disclosed wherein a thickness of the insulating layer is controlled by the printed pattern and/or mineral oil on the selected portion of the insulating layer. Similarly, stock material incorporating the present invention includes a base layer, an insulating layer formed on at least a portion of the base layer and a printed pattern printed on and or mineral oil applied to the insulating layer is disclosed wherein the thickness of the insulating layer is again controlled by the printed pattern and/or mineral oil on the portion of the insulating layer.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: February 29, 2000
    Assignee: Fort James Corporation
    Inventors: Daniel James Geddes, Michael Andrew Breining, Michael Schmelzer
  • Patent number: 6030024
    Abstract: A door arrangement for opening and closing a motor vehicle door in a door opening (2) in an outside vehicle wall (1), having at least one door panel (3) which, in the closed position, assumes a position that is essentially flush position with the outside wall (1) and which can be swung into an open position which at least partially exposes the door opening, and in which the door panel (3), outside of the vehicle, assumes a roughly parallel position to outside wall (1). The door panel (3) is connected to the vehicle to swing via at least one pivoting lever (5). To enhance the sealing action in the closed position, it is provided that a forward edge (31) of the door panel (3), by way of a linkage mechanism (7, 8, 9) executes a movement by which this edge (31) fits from inside behind the associated edge (door frame 4B) of outside wall (1) or a seal (10) located thereon, in the closed position.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: February 29, 2000
    Assignee: Webasto Tursysteme GmbH
    Inventors: Horst Schmidhuber, Jochen Haussmann, Martin Danzl
  • Patent number: 6030033
    Abstract: A chair of the type having a chassis and a seat portion connected with a reclinable backrest and a footrest which is pivotable between a passive parking position and a forwardly projecting carrier position. The backrest is swung rearwardly and the footrest forwardly in response to the seat portion behind displaced rearwardly relative to the chassis, and the backrest is separately adjustable in any position of the seat portion. The footrest is made as a telescopic plate structure which is extensible in response to being swung forwardly, based on the use of totally concealed actuator.
    Type: Grant
    Filed: July 8, 1998
    Date of Patent: February 29, 2000
    Assignee: A/S P. Schultz & Co.
    Inventor: J.o slashed.rgen Schultz
  • Patent number: 6030277
    Abstract: A method for accurately and economically shaping a zirconia workpiece with a relatively inexpensive silicon carbide grinding wheel is provided. The grinding wheel used in the method preferably utilizes 220 mesh silicon carbide particles bound in a low porosity vitreous matrix. The grinding wheel is then rotated at a sufficient speed to implement a grinding operation, and is engaged against the zirconia workpiece at a diametral feed rate of at least 0.04 mm/sec. The method advantageously removes material from the zirconia workpiece at a high rate of speed with minimal wheel wear, and results in accurate cuts and smooth surface finishes, and also eliminates the need for dressing the wheel prior to the grinding operation.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: February 29, 2000
    Assignee: Cummins Engine Company, Inc.
    Inventors: Albert J. Shih, Thomas M. Yonushonis
  • Patent number: 6030869
    Abstract: A method for fabricating a nonvolatile semiconductor memory device having a stacked gate portion, including a tunnel insulating film, a floating gate electrode, a capacitive insulating film and a control gate electrode, formed over a p-type Si substrate. In the p-type Si substrate, n.sup.++ source/drain layers and n.sup.+ source/drain layers, each layer containing arsenic, are formed. In the drain region, an n.sup.- drain layer, containing phosphorus and overlapping with an entire edge of the stacked gate portion in the gate width direction, and a p layer surrounding the bottoms of the n.sup.+ and the n.sup.- drain layers are provided. In such a structure, an electric field applied between the floating gate electrode and the drain is weakened and the drain-disturb characteristics are improved during writing.
    Type: Grant
    Filed: September 23, 1998
    Date of Patent: February 29, 2000
    Assignee: Matsushita Electronics Corporation
    Inventors: Yoshinori Odake, Takashi Maejima, Hidenori Tanaka, Mitsuyoshi Andou, Toshimoto Kubota
  • Patent number: 6030311
    Abstract: A control system for a toroidal type continuously variable transmission which incorporates a toroidal continuously variable gear mechanism comprising an input and an output toroidal disk and a roller disposed between the input and output toroidal disks and continuously varies a gear ratio according to inclinations of the roller actuates a stepping motor, when a specific driving condition which causes the continuously variable transmission to switch between a first and a second control mode and directional reversal of torque transmission through the toroidal continuously variable gear mechanism occurs with a result of causing a shift of the roller from one side to another side of the neutral position, to operate a double-slider shift valve to cause the shift of the roller in advance.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: February 29, 2000
    Assignee: Mazda Motor Corporation
    Inventor: Toshihiko Osumi
  • Patent number: 6030028
    Abstract: A device for actuating an angularly displaceable motor vehicle element such as a tailgate element, especially a rear spoiler having an arrangement for displacing it between a retracted rest position and a raised working position and in which a control element (13, 16) interacts with cam track (7) based on linear relative motion between them parallel to the first swivel axis (18) of a motor vehicle element (3) as the element is actuated.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: February 29, 2000
    Assignee: Webasto Karosseriesysteme GmbH
    Inventors: Stjepan Radmanic, Andreas Losert
  • Patent number: 6031236
    Abstract: A radiation image storage panel having a sintered or deposited stimulable phosphor layer is improved by impregnating the sintered or deposited phosphor layer with a thermosetting resin, an ultraviolet-curing resin or an electron beam-curing resin, and curing the impregnated resin.
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: February 29, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Satoshi Arakawa, Yuichi Hosoi, Katsuhiro Kohda, Kikuo Yamazaki
  • Patent number: 6031290
    Abstract: An electronic circuit formed on an insulating substrate and having thin-film transistors (TFTs) comprising semiconductor layers. The thickness of the semiconductor layers is less than 1500 .ANG., e.g., between 100 and 750 .ANG.. A first layer consisting mainly of titanium and nitrogen is formed on the semiconductor layer. A second layer consisting aluminum is formed on top of the first layer. The first and second layers are patterned into conductive interconnects. The bottom surface of the second layer is substantially totally in intimate contact with the first layer. The interconnects have good contacts with the semiconductor layer.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: February 29, 2000
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Minoru Miyazaki, Akane Murakami, Baochun Cui, Mutsuo Yamamoto
  • Patent number: 6030326
    Abstract: An automatic blade changing system of a dicing machine uses a blade which is fixed to an auxiliary stopper member provided with a thread which is engaged with a thread of a spindle. The automatic blade changing system consists of two blade holding means which hold the blade to which the stopper member is fixed and rotate the blade relatively to the spindle in the state wherein the blade is forced to the spindle, a blade accommodating means which accommodates a blade to replace the blade, a moving means for moving the blade holding means between the end of the spindle and the blade accommodating means.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: February 29, 2000
    Assignees: Tokyo Seimitsu Co., Ltd., Seiko Seiki Kabushiki Kaisha
    Inventors: Masayuki Azuma, Tadashi Adachi
  • Patent number: 6030278
    Abstract: A wafer is rotated on its axis, which is biased with regard to an axis of a grinding wheel, and revolves around an axis which is biased with regard to the axis of the wafer and the axis of the grinding wheel. In this state, the grinding wheel is abutted against the surface of the wafer. Thus, all abrasive grains on the grinding wheel can act on the whole surface of the wafer.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: February 29, 2000
    Assignee: Tokyo Seimitsu Co., Ltd.
    Inventor: Katsuo Honda
  • Patent number: 6027046
    Abstract: A unit fuel injector is provided which includes a threadless injector body attaching device for attaching an upper body section of the fuel injector to a lower body section while avoiding imparting a transverse load to the upper body section thereby minimizing bore distortion, plunger wear and the likelihood of injector failure. The threadless injector body attaching device includes a groove formed in the lower end of the upper body section and one or more apertures extending through the lower body section for positioning adjacent the groove. Also, one or more pins are provided for insertion into a respective aperture and connection to the lower body section. The groove and opposing aperture or apertures are sized to create a slip fit to avoid a contact force between the pin or pins and the upper body section.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: February 22, 2000
    Assignee: Cummins Engine Company, Inc.
    Inventors: Daniel K. Vetters, Daniel K. Hickey, Bruce E. Varney
  • Patent number: 6026744
    Abstract: In stencil printing, a printing matrix is thermally made in a printing matrix area on a stencil material on the basis of image information representing an image on an original. The printing matrix area is determined according to the sheet size of printing paper sheet. The stencil thus obtained is wrapped around a printing drum and a printing paper sheet fed toward the printing drum is pressed against the printing drum by a pressure member. A memory which is provided on the printing drum side stores information on the area of the printing matrix. The sheet size is compared with the area of the printing matrix based on information extracted from the memory. When the former is smaller than the latter, printing is inhibited and an error signal which advises against printing is output.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: February 22, 2000
    Assignee: Riso Kagaku Corporation
    Inventor: Masakazu Miyata
  • Patent number: 6027454
    Abstract: Ophthalmodynamometer (1) with a contact body for applying pressure to an eye (4) to be examined and for increasing the internal ocular pressure, in which the contact body is formed by fundus contact glass (2) which is used to observe the entire ocular fundus and is placed on the eye. Thus, the functions of applying and measuring pressure while simultaneously observing the ocular fundus are combined using the fundus contact glass (2).
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: February 22, 2000
    Inventor: Bernhard Low
  • Patent number: 6028264
    Abstract: Non-single-crystalline semiconductor material or device containing carbon impurity in a concentration less than 4.times.10.sup.18 atoms/cm.sup.3.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: February 22, 2000
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Shunpei Yamazaki
  • Patent number: 6027614
    Abstract: A process for producing a creped sheet as well as a creping blade and creped paper product formed by such blade is set forth with the process including the steps of adhering a cellulosic web to a moving surface, providing a stepped creping blade disposed to crepe the cellulosic web from the moving surface and creping the cellulosic web from the moving surface forms a creped paper product having greater bulk and absorbency than previously prepared creped paper products.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: February 22, 2000
    Assignee: Fort James Corporation
    Inventors: Peter Parker, Thomas N. Kershaw, Robert Marinack, Ranga Ramesh, Frank Harper