Patents Represented by Law Firm Jordan & Hamburg
  • Patent number: 8276637
    Abstract: An end of a sheet drawn out form a feeder is clamped by a pair of upper and lower clamping devices of two or more pairs. The sheet is drawn out from the initial position to the end position in a spread state. While the spread sheet is being tentered on pin tenters, another pair of upper and lower clamping devices at the end position is separated from each other and moved along the respective rails into the initial position. The end of the sheet drawn out from the feeder is clamped from above and below at the initial position with the upper and lower clamping devices that has returned to the initial position.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: October 2, 2012
    Assignees: Fukui Prefecture Government, Mitsuya Co., Ltd.
    Inventors: Kazumasa Kawabe, Kichiro Ishida
  • Patent number: 8141425
    Abstract: Disclosed is an angular rate detection apparatus which provides a stable output with high detection accuracy regardless of a fluctuation of a reference voltage accompanying a fluctuation of a power supply voltage. The angular rate detection apparatus includes at least a gyro sensor detection circuit connected to an oscillator, an A/D converter, a digital calculation device, and a reference voltage generation circuit. The gyro sensor detection circuit drives the oscillator, and detects an angular rate acting on the oscillator and outputs an analog detection signal. The A/D converter converts the output analog detection signal into a digital signal. The digital calculation device carries out a calculation based on the converted digital signal. The reference voltage generation circuit supplies a common reference voltage generation circuit supplies a common reference voltage to the gyro sensor detection circuit and the A/D converter.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: March 27, 2012
    Assignee: Seiko NPC Corporation
    Inventors: Shinnosuke Kano, Masayuki Takahashi
  • Patent number: 7926693
    Abstract: A receiving element which can be introduced into a borehole of at least one component includes a bolt presenting an outer surface that is approximately parallel and advantageously coaxial to a longitudinal axis of the bolt. The receiving element requires few materials and can therefore be produced at a low constructional cost while being provided with high dimensional stability and positioning accuracy. The bold includes an abrasion-resistant sintered material, and a metal tip provided on the front end of the shaft. The end part of the tip is engageable in a recess of the bolt, and there is a direct connection between the end part and the recess in the connection region on the front end of the bolt.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: April 19, 2011
    Assignee: Friatec Aktiengesellschaft
    Inventor: Peter Schramm
  • Patent number: 7855019
    Abstract: A method for operating a direct methanol fuel cell is provided. The fuel cell includes a fuel cell main body having a fuel electrode and an air electrode disposed in opposing positions on either side of an electrolyte film. In this method, an aqueous methanol solution is supplied directly to the fuel electrode. A quantity of the aqueous methanol solution supplied is controlled in accordance with an electric current value drawn from the fuel cell main body so as to minimize a quantity of unused methanol within a discharge fluid discharged from the fuel electrode.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: December 21, 2010
    Assignee: Panasonic Corporation
    Inventors: Katsumi Kozu, Toshihiko Ichinose, Masahiro Takada, Satoshi Shibutani
  • Patent number: 7692517
    Abstract: An oscillator or a sensor comprising a unit including two frequency determining elements each of which comprises at least one interdigital converter for acoustic surface waves and a back-coupling circuit comprising an amplifier, wherein the frequency determining elements are distinguished by a temperature dependence of a synchronous frequency.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: April 6, 2010
    Assignee: Tele Filter GmbH
    Inventors: Guenter Martin, Manfred Weihnacht
  • Patent number: 7633026
    Abstract: The invention relates to an inductive sensor unit having one or more sensor coils, which have been mounted on a printed circuit board in a planar manner. According to the invention, a change in the inductance of the sensor coils caused by leakage currents in the conductive actuator is correlated with the position of the actuator with regard to the distance from the sensor coil and with the overlapping of the sensor (at a fixed distance). This provides the basis for an inductive momentary contact switch and an inductive position switching device. The invention also relates to the evaluation of the inductance, e.g. of the momentary contact switch such as in inductive proximity switches by incorporating the inductive sensors in an oscillating circuit. Alternatively, the change in inductance can also be detected by a reactance measurement. A relative evaluation of the influence of adjacent sensor coils is carried out in position switching devices.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: December 15, 2009
    Assignee: ZF Friedrichshafen AG
    Inventors: Martin Zapf, Thomas Luber
  • Patent number: 7568550
    Abstract: Deep groove ball bearings are used as bearings supporting both side portions of a worm. In the first bearing on the side of a motor, the curvature radius of a raceway groove in an inner ring or the curvature radius of a raceway groove in an outer ring are set to a specific numerical range with respect to the diameter of a ball.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: August 4, 2009
    Assignee: Jtekt Corporation
    Inventors: Hirotaka Yasuda, Hirotsugu Kusano, Wataru Yamada, Yoshiyuki Saito, Shuzo Hirakushi
  • Patent number: 7238015
    Abstract: A control system for continuous rubber molding apparatus comprising; a feed portion for feeding a rubber material previously removed of foreign substances or particles in the previous step; an extruder for kneading the fed rubber material and feeding forward the kneaded material; and a gear pump for delivering the rubber material, fed from the extruder, to a forming nozzle, the forming nozzle continuously extruding a rubber ribbon used for building a tire. The control system comprises: a pressure sensor for sensing a pressure in the gear pump; pressure comparator for comparing a sensed pressure and a set value; and motor controller for controlling the number of revolutions of a motor based on a comparison result given by the pressure comparator, the motor operative to drive a screw of the extruder.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: July 3, 2007
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventors: Makoto Koumo, Masayoshi Abe
  • Patent number: 7046018
    Abstract: A position sensor is provided comprising a coil (1) and an electric conductor (2) or magnetic (3) both arranged so that the size of their overlapping area (p) is varied as the position of an object to be examined changes, a resistor (6), a capacitor (4), a comparator (5) of an inverse output type, and a timing circuit (50a) arranged for uniformly restraining the period (T) of a continuous oscillating motion, herein a displacement of the object to be examined is detected as a change in the time duration (t) which extends from the leading end of the period (T) to a time when the output of the comparator (5) is turned to a high level as timed with substantially the trailing end of the period (T). The resistance of the resistor (6) is determined so that a change in the time duration (t) remains minimum when the resistance of the resistor (6) is varied and when the temperature is at a predetermined degree.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: May 16, 2006
    Assignee: Levex Corporation
    Inventors: Seiji Toda, Naomasa Oshie
  • Patent number: 7014561
    Abstract: A gauge display program is provided which makes it possible for a user to ascertain easily parameter values, and which enables the image of the game itself to be satisfactorily displayed and thereby to enable the interest of the video game itself to be satisfactorily presented to the user. Image data is output to television monitor 21 so that an action-responsive gauge displayed on a game screen is successively switched over, by means of a gauge display switching section 109, to an action-responsive gauge selected as the result of a determination by a gauge display type determination section 102 and action determination section 103, and thus the action-responsive gauge displayed on the game screen is switched over in response to the action of the game character.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: March 21, 2006
    Assignee: Konami Corporation
    Inventor: Motoki Kaneda
  • Patent number: 6929671
    Abstract: The present invention relates to a combination air purifier and wind generator. The combination air purifier and wind generator includes a wind-receiving unit installed on a central shaft for driving an electric generator mounted in a housing, and an air purifier. The wind-receiving unit includes a governor fixed to an upper end of the central shaft, a spherical blower installed in the middle of the central shaft, and planar magnetic rotary plates installed at a lower end of the central shaft for receiving both artificial and natural winds. Lower magnets are attached to the top of the housing while upper magnets having the same polarity as the lower magnets are attached to the bottoms of the magnetic rotary plates to face the lower magnets. The air purifier includes two air inlets; one air outlet; a copper net, a silver net and a hard charcoal/zeolite net disposed within the air purifier for purifying air introduced thereinto; and a blower interposed between the silver net and the hard charcoal/zeolite net.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: August 16, 2005
    Inventors: Eung-Pil Kim, Kwang-Sik Kim
  • Patent number: 6914438
    Abstract: A position sensor is provided comprising a coil (1) and an electric conductor (2) or magnetic (3) both arranged so that the size of their overlapping area (p) is varied as the position of an object to be examined changes, a resistor (6), a capacitor (4), a comparator (5) of an inverse output type, and a timing circuit (50a) arranged for uniformly restraining the period (T) of a continuous oscillating motion, herein a displacement of the object to be examined is detected as a change in the time duration (t) which extends from the leading end of the period (T) to a time when the output of the comparator (5) is turned to a high level as timed with substantially the trailing end of the period (T). The resistance of the resistor (6) is determined so that a change in the time duration (t) remains minimum when the resistance of the resistor (6) is varied and when the temperature is at a predetermined degree.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: July 5, 2005
    Assignee: Levex Corporation
    Inventors: Seiji Toda, Naomasa Oshie
  • Patent number: 6709132
    Abstract: Provided is an LED bulb with a higher distribution of luminous intensity which is close to those of tungsten bulbs, in which the problem in directivity of the prior art LED bulbs has been solved while maintaining the advantages of an LED, that is, a long life and an energy saving characteristic. The LED bulb comprises a printed circuit board 5 which is flat when developed and is bendable to form a cage, a plurality of LEDs 6 which are disposed on the printed circuit board 5, and a transparent or semi-transparent cover 2 which encloses the printed circuit board 5 formed into the cage. The printed circuit board 5 may have a plurality of belt-like branches 5a which extend in radial directions from the center of the printed circuit board 5. The LED bulb may further comprise a power unit housing 8 for containing a power unit which supplies electric current to each of the LEDs 6.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: March 23, 2004
    Assignee: ATEX Co., Ltd.
    Inventor: Kazuo Ishibashi
  • Patent number: 6692342
    Abstract: In the wafer abrasive machine of the present invention, a gravity center and a rotational axis of a wafer can be corresponded while abrading the wafer and a holding plate can be smoothly moved in a head member. The abrasive machine comprises: the head member including a concave section, in which the holding plate is accommodated; an elastic sheet member suspending the holding plate and being reinforced by a cloth-formed reinforcing member; a space for storing pressure fluid which pushes the holding plate toward the abrasive plate, the space being formed between the elastic sheet member and the concave section; and a plurality of spherical bodies being provided between an outer circumferential face of the holding plate and an inner circumferential face of the concave section, the spherical bodies simultaneously point-contact the both circumferential faces.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: February 17, 2004
    Assignee: Fujikoshi Machinery Corp.
    Inventors: Yoshio Nakamura, Tsuyoshi Hasegawa, Susumu Onishi
  • Patent number: 6672769
    Abstract: A bearing apparatus includes a hollow shaft provided around an outer peripheral surface with a bearing fitting region, and a rolling bearing having an inner ring fitted around the bearing fitting region of the hollow shaft. A shaft end of the hollow shaft is bent outwardly in a diametrical direction, thereby being caulked on an outer end surface of the inner ring. The bearing fitting region has a hardened layer in a region from a first position corresponding to an inner end surface of the inner ring of the rolling bearing to a second position before a position corresponding to an outer end surface of the inner ring, and has a non-hardened layer in another region from the outer end surface corresponding position of the inner ring to the shaft end. The second position representative of a caulked side end portion of the hardened layer is defined based on a predetermined relational expression.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: January 6, 2004
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Kazutoshi Toda, Masahiro Inoue, Kenji Takahashi, Teruyuki Kawatani, Shinichirou Kashiwagi, Teruyuki Wakisaka, Tadashi Mitarai
  • Patent number: 6605388
    Abstract: In a first process, an electrically conductive thin metal plate 7 is subjected to a press molding process employing a plurality of punches 3 in a primary molding block 1 and a plurality of dies 4 in a secondary molding block 2, so as to form therein a plurality of hollow projections 9 that project from one side of the metal plate 7, and bulges 14 that bulge out in a direction opposite to that of the projections 9, positioned between the projections 9. In a second process, the metal plate 7 on which have been formed the plurality of projections 9 and bulges 14 is subjected to either chemical etching or electrolytic etching, so as to form through holes 17 by corrosively removing thin-walled portions 11 from the tips of the projections 9, and, at the same time, to corrosively form innumerable fine irregularities 18 over the entire surface of the metal plate 7.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: August 12, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshio Goda, Mamoru Iida, Takeo Takayanagi, Masahiko Ogawa, Yoshio Moriwaki, Saburo Nakatsuka
  • Patent number: 6569334
    Abstract: A method for incubation of nitrifying bacteria in a high concentration which are contained in small amount in activated sludge includes subjecting the activated sludge to nitrification and acclimation culture for about one to two months using a sludge-treated waste liquid such as dehydrate sludge filtrate and digested eluate under such a condition that the dissolved oxygen is 2-4 mg/liter, the pH is 7.5-8.5 and the temperature is 25-35° C. and, at the same time, constantly maintaining the pH within the pH range of 7.7-8.5 by addition of an incubation promoter comprising a mixture of sodium carbonate and sodium hydrogen carbonate.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: May 27, 2003
    Assignee: Bicom Corporation
    Inventor: Satoshi Yoneda
  • Patent number: 6539693
    Abstract: Harvesting machine for picking up and chopping corn, wilted grass, green feed and similar harvested material including a feeding device, a chopping device arranged after the feeding device and a conditioning device for conditioning the harvested material arranged after the chopping device. The conditioning device optionally engages a conveying duct. Mounting and dismantling of the conditioning device is simplified because it is connected on one side to a duct pivotable about an essentially horizontal swiveling axis and on the other side rigidly but detachably to a rigid duct. Preferably, the swiveling axis is situated below the pivotable duct such that the swiveling motion of the pivotable duct is directed downward against the traveling direction of the harvesting machine to thereby enable removal of the conditioning device.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: April 1, 2003
    Assignee: Maschinenfabrik Bernard Krone GmbH
    Inventors: Bernard Krone, Dieter Berth, Thomas Strobel, Karl-Heinz Radke
  • Patent number: D502911
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: March 15, 2005
    Assignee: Toyo Tire & Rubber Co., Ltd.
    Inventor: Yoshiki Sato
  • Patent number: D491138
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: June 8, 2004
    Assignee: Japan Storage Battery Co., Ltd.
    Inventor: Tetsuro Minato