Patents Represented by Attorney Thomas R. Morrison
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Patent number: 5406215Abstract: An open drain output circuit includes a package having a reference potential section on at least a portion thereof. An output terminal of the circuit disposed on the package is connected through a load resistor to an external power supply. A common terminal also disposed on the package is connected to an external point of reference potential. A parasitic load capacitance is formed between the common terminal and the load resistor. A field effect transistor having drain, source and gate regions is disposed within the package. The drain and source regions are connected to the output and common terminals, respectively. The conductivity of the drain-source conduction path is variable in accordance with the value of a control voltage applied between the gate and source regions. Connections of the drain and source regions to the output and common terminals, respectively, provide parasitic inductances.Type: GrantFiled: April 12, 1993Date of Patent: April 11, 1995Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Katsushi Asahina
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Patent number: 5404126Abstract: A fuse resistor protects a circuit from a surge, an overcurrent from an unexpected connection, or the like. When a continuous overvoltage higher than a predetermined value is applied to the circuit, the heat from a heat-generating resistant film fractures an insulating substrate of the fuse resistor to open the circuit. Changing the minimum current to which the fuse resistor responds, by modifying a cutout or notch on the substrate, makes it possible to use the fuse resistor anywhere in the circuit. A discharging-type surge absorbing element with a security mechanism that includes the fuse resistor can thus provide protection against a surge or a continuous overcurrent that is more than the rated value of the fuse resistor.Type: GrantFiled: June 1, 1993Date of Patent: April 4, 1995Assignee: Okaya Electric Industries Co., Ltd.Inventors: Yoshito Kasai, Yoshiro Suzuki, Akihiko Ikazaki
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Patent number: 5404035Abstract: A master-slice semiconductor integrated circuit device includes a substrate for an input/output circuit section, which is segmented into a plurality of segments during a master processing step. In a slice processing step, slice cells are formed, using different substrate segments. Input/output circuits are formed by respective slice cells so that desired different supply voltages can be applied to input/output circuits on different substrate segments.Type: GrantFiled: June 10, 1993Date of Patent: April 4, 1995Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Hideki Taniguchi, Ichiro Tomioka, Kunihiko Sanada, Masatomi Okabe
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Patent number: 5403529Abstract: The running length of an inner synthetic resin within an outer synthetic resin in a composite synthetic resin is reduced by flowing a forced synthetic resin flow behind intermittent flows of the inner synthetic resin. The forced synthetic resin is of the same type as the outer synthetic resin. The composite resin flowing out of the apparatus is cut with a heated wire.Type: GrantFiled: April 6, 1993Date of Patent: April 4, 1995Assignee: Toyo Seikan Kaisha, Ltd.Inventor: Kiyoshi Kawaguchi
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Patent number: 5402120Abstract: A navigation system mounted on a vehicle displays a primary direction indication image on a display unit. This primary direction indication image has a proximal portion that represents a road along which the vehicle is now moving and a direction indication portion that represents a road which the vehicle is to enter at the next intersection. One or more auxiliary direction indication images, with direction indication portions that represent other roads connected to the next intersection, are displayed on the display unit together with the primary direction indication image. The direction indication portion of the auxiliary direction indication image extends from the distal end of the proximal portion of the primary direction indication image.Type: GrantFiled: August 18, 1993Date of Patent: March 28, 1995Assignee: Zexel CorporationInventors: Takao Fujii, Tatsuhiko Abe
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Patent number: 5400635Abstract: A can forming apparatus interposes a plurality of feed guides projecting part way into a path of feed of a can blank. The feed guides hold a leading can blank and embrace it in cooperating outer peripheral recesses to move the can blank into alignment with a die. Radially extended portions, continuous from the recesses, press the can blank downward after the can blank is released from the recesses. A pair of leaf springs or a pair of rollers temporarily hold the can blank before it is pressed downward by the radially extended portions of feed guides. An elongated punch is advanced into the die bore effect deep drawing and ironing of the can blank in the die bore thereby forming a can body. The punch is driven in reciprocating linear motion, supported on fluid bearings. Pressurized gas is admitted through the punch into the can body at a time in the can-forming cycle appropriate to remove the can from the punch. The pressurized gas separates the can body from the punch.Type: GrantFiled: August 25, 1993Date of Patent: March 28, 1995Assignee: Mitsubishi Materials CorporationInventors: Akira Kawaguchi, Toshihiko Kawashima
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Patent number: 5399078Abstract: In a rotary-piston engine, the contour of a normal section of the piston is either a composite trochoid or a translated composite trochoid. Each vertex of the normal section is either a generating point of the trochoid or has the form of a circular arc whose center is the generating point of the trochoid and whose radius is a fixed distance. Thus all the edges of the piston slide continuously on the inside face of engine cavity. The piston describes a planetary motion about a point at the same time as it revolves around an origin. Thus the volume of the working chambers changes. The opening and closing of connecting ducts for gas exchange are controlled. The resulting engine has only rotating moving parts, and they are in complete balance. The engine has no constrictions on the minor axis of the contour. Thus the movement of combustion gases is not impeded near top dead center. The engine has a high compression ratio.Type: GrantFiled: August 18, 1993Date of Patent: March 21, 1995Inventor: Yasuo Kuramasu
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Patent number: 5398464Abstract: A gutter system includes a strap for supporting a screen on the gutter. The strap is an elongate, planar member, preferably formed of the same material as the gutter. A first end of the strap is inserted under the roof shingles, between the keyways. The second end is configured to both project into a channel formed in the distal edge of the gutter and to overlie a horizontal wall of the channel, with a return portion to engagingly retain an edge of the screen.Type: GrantFiled: September 7, 1993Date of Patent: March 21, 1995Inventor: Kenneth Jacobs
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Patent number: 5397239Abstract: A molded circuit board has an aperture wherein a contact member is flexibly carried by a living hinge. Conductor traces are plated upon the contact member, the living hinge, and the circuit board. The conductor traces form contacts on the contact member which are electrically connected to the conductor traces on the circuit board. A mating connector, having resilient contacts, is inserted into the aperture, folding back the contact member. The resilient contacts engage the contacts on the contact member. Another embodiment includes dual contact members hinged on opposing sides of an aperture. A further embodiment has a contact member which is folded up and inserted into a mating connector. In the above embodiments the contact members are molded with thin breakable portions of material holding the contact members in planes of the circuit boards. The present invention is formed from a polymeric material including one of polypropylene, polyethylene, and nylon.Type: GrantFiled: December 17, 1993Date of Patent: March 14, 1995Assignees: Circuit-Wise, Inc., Ford Motor CompanyInventors: Victor Zaderej, Michael P. Coletta, Howard Kell, Daniel F. Sheldon
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Patent number: 5395782Abstract: A LOCOS film is formed on the surface of an epitaxial layer. A gate electrode is formed on the epitaxial layer. At the same time that the gate electrode is formed, a lower electrode is formed on the LOCOS film. A diffusion region is formed on each element and then covered with a BPSG film. A contact hole and capacitor exposure are formed in a capacitor element simultaneously. A film of SiN is deposited in layers over the capacitor exposure. The film of SiN covers undesired areas about the capacitor exposure. Excess SiN film outside the desired area over the capacitor exposure is removed by masking and etching to leave the remaining film area over the capacitor exposure to serve as a capacitor dielectric film. Finally, an Al upper electrode is formed over the SiN film to serve as electrode wiring. The process reduces the series resistance of the capacitor element, thereby reducing power required for charging the dielectric, and speeding the charging process.Type: GrantFiled: July 29, 1992Date of Patent: March 7, 1995Assignee: Sanyo Electric Co., Ltd.Inventors: Toshiyuki Ohkoda, Satoru Kaneko
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Patent number: 5396500Abstract: A logic function block having an output signal potential sensing function is substituted for each of logic function blocks of which fault conditions cannot be detected on the basis of predetermined input/output signal combinations for determining whether or not the semiconductor integrated circuit device operates correctly. Probe lines and sense lines are connected only to the logic function blocks having output signal potential sensing function. The probe lines are driven from a probe line driver, and a sense line receiver reads out signals on the sense lines. Thus, without reducing fault detecting efficiency, the areas of an active region and a wiring region required for forming a fault detecting arrangement can be reduced.Type: GrantFiled: October 2, 1992Date of Patent: March 7, 1995Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Yoshihiro Tanaka, Yoshio Inoue
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Patent number: 5396038Abstract: A key stem of a keyboard switch includes an outer slide and an inner slide. When a key top is struck, the outer slide slides inside of an outer guide, and the inner slide slides inside an inner guide. A first moment point is developed between the outer slide and the outer guide, while a second moment point is developed between the inner slide and the inner guide. A taper at the bottom of the outer slide prevents the second moment point being developed in that location. The reduced horizontal distance between the two moment points helps prevent binding of the key when an actuating force is applied off the axis of the key top. A relationship is disclosed for avoiding sticking or binding in which the horizontal distance between the two moment points, times a coefficient of friction, is less than the vertical distance between the planes of the two moment points.Type: GrantFiled: December 17, 1993Date of Patent: March 7, 1995Assignee: SMK Co., Ltd.Inventor: Kazunori Yamada
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Patent number: 5393058Abstract: A simulated golf game in which a remotely controlled golfer plays on a miniature course, The physical mechanisms and methods of control of the game are directed to heighten its realism. The course has all the characteristics of a real golf course, e.g., hills, valleys, sand traps, and trees. The golfer is a model human figure who plays a miniature ball free that is to roll anywhere on the course. The golfer is remotely controlled through an overhead gantry positioning mechanism that connects to the golfer's back by way of a small-diameter rigid tube. The gantry simulates walking by moving the tube, with the golfer attached, about the golf course. Animation of the golfer itself (bending at the waist, swinging the club, etc.) is effected by a set of electric motors driving cables running inside the tube. Many of the motors are operated simultaneously to give the golfer a lifelike look. The motor operations are controlled by a computer.Type: GrantFiled: May 5, 1993Date of Patent: February 28, 1995Inventors: Bruce Rowland, Dean Rowland
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Patent number: 5394333Abstract: A hybrid vehicle navigation system employs both GPS and dead reckoning sensors, working in parallel, to produce a sensed and a calculated position, respectively. The sensed and the calculated positions are compared to a road data base to determine separate correction factors required to correct the sensed and the calculated positions. In one embodiment, the system employs either the sensed or calculated position for navigation depending on which has the smaller correction factor.Type: GrantFiled: December 20, 1993Date of Patent: February 28, 1995Assignee: Zexel USA Corp.Inventor: Wei-Wen Kao
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Patent number: 5392035Abstract: A coordinate detection device has upper and lower resistive plates. Pressure on the upper resistive plate causes the two plates to come into electrical contact at a point of the pressure allowing an external device to compute the coordinates of the applied pressure. Each resistive plate has a layer of transparent resistor material over a transparent substrate. Two parallel electrodes of silver are spaced apart on each resistive plate to create a linear potential gradient therebetween. The electrodes are connected across a voltage potential via lead wires which are made from the same material as the transparent resistor.Type: GrantFiled: September 3, 1993Date of Patent: February 21, 1995Assignee: SMK CorporationInventor: Osamu Yoshikawa
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Patent number: 5382539Abstract: A method for manufacturing a semiconductor device having a diffusion region formed within a source. A one-conductivity type well is created in a semiconductor substrate, and marked off with field oxide layers. An insulating layer for holding charges is formed on a portion of the surface of the one-conductivity type well, onto which a conductive layer is applied. The insulating layer and the conductive layer are both etched to produce a memory charge storage and a control gate electrode, respectively. An opposite-conductivity type drain and source are formed in the one-conductivity type well. A one-conductivity type diffusion region is then formed within the opposite-conductivity type source, resulting in a memory cell having superior reliability.Type: GrantFiled: August 26, 1992Date of Patent: January 17, 1995Assignee: Rohm Co., Ltd.Inventor: Takashi Nakamura
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Patent number: 5379717Abstract: A method of growing a single semiconductor crystal with a flat top. In order to grow a single flat top crystal, the InP crystal is pulled up after the temperature drop of the melt has almost stopped, at a point in time when a meniscus at the interface of solid-liquid can be seen over the whole circumference of the surface of the melt. This prevents a facet from appearing at the shoulder portion of the crystal, thus reducing the generation of twin crystals and drastically improves retension of single crystal formation.Type: GrantFiled: May 18, 1993Date of Patent: January 10, 1995Assignee: The Furukawa Electric Co., Ltd.Inventors: Seikoh Yoshida, Shoichi Ozawa, Toshio Kikuta
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Patent number: 5378466Abstract: A therapeutic agent for allergic diseases containing as an active ingredient an extract of Acanthopanax senticosus Harms. It became possible to provide a medicine enabling allergic diseases to be treated without causing almost no side effects.Type: GrantFiled: August 4, 1992Date of Patent: January 3, 1995Assignee: Bio Cell Matelia Co., Ltd.Inventor: Koichi Endo
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Patent number: 5375697Abstract: Fork-shaped links on a conveyor chain allow the chain to follow sharp curves in a right angle to the plane of the links as well as allowing oscillation of adjacent links in the same plane as the links. Each link has a crosspiece and a pair of arms. A seat of articulation and oscillation having a central narrowing is positioned on the crosspiece. The crosspiece is inserted between the arms of an adjacent link, and a pin having a longitudinal flattening is inserted with the flattened portion facing the central narrowing, through holes in the arm, and through the seat.Type: GrantFiled: May 3, 1993Date of Patent: December 27, 1994Assignee: Marbett, S.p.A.Inventors: Tienno Battati, Fabrizio Ferrari
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Patent number: D357225Type: GrantFiled: September 1, 1993Date of Patent: April 11, 1995Inventors: Motokazu Sasa, Hiroshi Fujie