Patents by Inventor Takashi Koizumi

Takashi Koizumi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20030080246
    Abstract: Since the flight control surface 23 is adapted to be swung by the use of the oscillating rotary actuator 25 having a carrier 48 (final output shaft) being coaxial with the pivot of the flight control surface 23, the conversion mechanism (such as a fixed link) for converting a linear movement of the cylinder into a rotational movement, which was required in the related art may be eliminated, and thus the fairing for covering the conversion mechanism is not necessary. This allows reduction of air resistance of the aircraft during the flight, and thus improvement of the fuel consumption efficiency.
    Type: Application
    Filed: October 8, 2002
    Publication date: May 1, 2003
    Applicant: Teijin Seiki Co., Ltd.
    Inventors: Takashi Koizumi, Toshio Kamimura
  • Patent number: 6530322
    Abstract: A suction transport device capable of reducing manufacturing cost due to reduction of the number of suction mechanisms by which one of photopolymer plates accommodated in a magazine is taken out is attained. Also separability when the printing plate is taken out is improved, thus improving reliability of the suction transport device. Since, among suckers and suction fans, those located at positions corresponding to the widthwise direction ends of the printing plates are movable in the widthwise direction, and separating plates are movable in the same direction. When one of the printing plates of a different size is to be taken out, the leading end corner portions of the printing plate can always be curved at a fixed curvature, and separability is improved. Further, there is no need to increase the number of suckers thus decreasing cost.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: March 11, 2003
    Assignees: Fuji Photo Film Co., Ltd., Fuji Photo Optical Co., Ltd.
    Inventors: Tsukasa Ono, Takashi Koizumi, Yoshinori Kawamura, Kazuhisa Tazaki
  • Patent number: 6520692
    Abstract: In an automatic exposure apparatus for printing plates, a photopolymer plate is taken out of an accommodating cassette in which stacked photopolymer plates are accommodated, and an image is recorded onto the photopolymer plate. A shutter which opens and closes an opening of the accommodating cassette is configured as a thin plate, and thus, the accommodating cassette is thin and light.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: February 18, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takashi Koizumi, Yoshinori Kawamura, Yoshihiro Koyanagi, Kazuhisa Okamoto
  • Publication number: 20020157554
    Abstract: An apparatus for feeding printing plate precursors is provided with a detecting sensor for detecting a position of a separation plate mounted on a cassette accommodating printing plate precursors, and a plate surface detecting sensor for detecting an uppermost plate of printing plate precursors stacked in the cassette. A relative position of the separation plate with respect to suction nozzles of a suction frame of the apparatus for feeding plates is controlled constant.
    Type: Application
    Filed: April 4, 2002
    Publication date: October 31, 2002
    Applicant: FUJI PHOTO FILM CO., LTD, and FUJI PHOTO OPTICAL CO., LTD.
    Inventors: Takashi Koizumi, Tsukasa Ono, Kazuhisa Tazaki
  • Patent number: 6457414
    Abstract: A printing plate discharging method and a printing plate discharging device can quickly and reliably discharge a printing plate from a surface plate, which printing plate has been placed in a state wherein one end portion of the printing plate projects from the surface plate, without making an exposed face of the printing plate dirty or scratched. At a discharging mechanism section of an automatic exposure device, a temporary support arm corresponds with the one end portion of the printing plate, which end portion projects from on the surface plate. The temporary support arm is raised higher than the surface plate by a moving stage moving and a roller thereby abutting against a projecting portion of the temporary support arm. Thus, the temporary support arm lifts up the one end portion of the printing plate. In this state, a plate discharging hook engages the one end portion of the printing plate (a lifted portion) and pushes the printing plate toward another end portion of the surface plate.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: October 1, 2002
    Assignees: Fuji Photo Film Co., Ltd., Fuji Photo Optical Co., Ltd.
    Inventors: Takashi Kato, Mamoru Murata, Yoshinori Kawamura, Takashi Koizumi
  • Publication number: 20020047234
    Abstract: A sheet feeding method for plate-shaped members is disclosed. In a sucker unit, suction nozzles are move down from respective original positions toward a bottom plate of a cassette at a fixed speed, and time t1 until the bottom plate is detected by a contact sensor, and an amount by which the suction nozzles move, &Dgr;y, until the suction nozzles suction adhere to the bottom plate after the bottom plate is detected by the contact sensor are measured. Subsequently, separation positions of the suction nozzles with respect to the original positions are set based on an interval between the bottom plate of the cassette and separation plates, and an interval required by the photopolymer plate being bent between the suction nozzles and the separation plates at an appropriate curvature. Based on the result of the setting, the photopolymer plate is reliably taken out from the cassette.
    Type: Application
    Filed: October 25, 2001
    Publication date: April 25, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Tsukasa Ono, Takashi Koizumi
  • Patent number: 6304415
    Abstract: At least one magnetic pole out of a pair of magnetic poles is provided with a T-shaped magnetic pole having a magnetic pole chip at the position contacting with a magnetic gap and an auxiliary magnetic pole which is wider than thereof. The proximity of an air bearing surface of the T-shaped magnetic pole is composed of a laminated film containing a magnetic material layer with a high saturated magnetic flux density which composes the magnetic pole chip and a portion of the auxiliary magnetic pole and a magnetic material layer with a low saturated magnetic flux density which composes the remaining portion of the auxiliary magnetic pole. When the front portion of the magnetic pole with the track width of 1.8 &mgr;m or less is composed of a laminated film containing a magnetic material layer having a high saturated magnetic flux density and a magnetic material layer having a low saturated magnetic flux density, the thickness of the magnetic material layer having the high saturated magnetic flux density is 0.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: October 16, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kohichi Tateyama, Hiroaki Yoda, Tadahiko Kobayashi, Hiromi Sakata, Michiko Hara, Akio Hori, Takashi Koizumi, Tomohiko Nagata
  • Publication number: 20010022712
    Abstract: There are provided a magnetic head for vertical magnetic recording capable of suppressing noises due to a magnetically soft layer and improving the lowering of efficiency, and a magnetic recording and/or reproducing system using the same.
    Type: Application
    Filed: March 9, 2001
    Publication date: September 20, 2001
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomomi Funayama, Masatoshi Yoshikawa, Takashi Koizumi, Akio Hori, Yuichi Oshawa
  • Publication number: 20010020688
    Abstract: A pair of optical sensors are disposed above photopolymer plates and interleaf papers, which are alternately stacked with one another. These optical sensors basically have the same structure. However, the optical sensor is disposed so as to be inclined to an optical axis of reflected light, and therefore, a detection level of the optical sensor substantially becomes low. Accordingly, although the optical sensors each react to the reflected light from the photopolymer plate, the optical sensor does not react to the reflected light from the interleaf paper. As a result, it is determined whether the uppermost layer of the stack is the photopolymer plate or the interleaf paper. In a discriminating device of the present invention, general purpose optical sensors adapted to react to light having such a fixed intensity or greater, are used.
    Type: Application
    Filed: March 7, 2001
    Publication date: September 13, 2001
    Inventors: Yoshinori Kawamura, Takashi Koizumi, Tsukasa Ono, Kazuhisa Tazaki
  • Publication number: 20010013928
    Abstract: In an automatic exposure apparatus for printing plates, a photopolymer plate is taken out of an accommodating cassette in which stacked photopolymer plates are accommodated, and an image is recorded onto the photopolymer plate. A shutter which opens and closes an opening of the accommodating cassette is configured as a thin plate, and thus, the accommodating cassette is thin and light.
    Type: Application
    Filed: February 13, 2001
    Publication date: August 16, 2001
    Inventors: Takashi Koizumi, Yoshinori Kawamura, Yoshihiro Koyanagi, Kazuhisa Okamoto
  • Publication number: 20010011513
    Abstract: A pressure switch 302 is set in communication with suction cups 124 of a suction adherence conveying device 109 applied to an automatic exposure device. Further, a suction fan 126, which can approach and move away from a photopolymer plate 102 or an interleaf sheet 118 accommodated within a magazine 208, is set integrally with the suction cups 124. By utilizing the fact that degrees of vacuum of the suction cups 124 differ in accordance with materials to be suction-adhered, determination of a material to be suction-adhered is performed based on output signals of the pressure switch 302.
    Type: Application
    Filed: February 5, 2001
    Publication date: August 9, 2001
    Inventors: Tsukasa Ono, Takashi Koizumi
  • Patent number: 6177917
    Abstract: A method for driving a liquid crystal display device including a liquid crystal panel which has a pair of substrates facing each other with a liquid crystal layer interposed therebetween and respectively having signal electrodes and scanning electrodes which are located perpendicular to each other, wherein the liquid crystal panel is divided into a plurality of display portions, and the signal electrodes and the scanning electrodes are driven on a display portion by display portion basis, thereby achieving display on the display portions individually, the method comprising the step of detecting and correcting distortion of a signal on each of the signal electrodes or each of the scanning electrodes on a display portion by display portion basis.
    Type: Grant
    Filed: April 8, 1998
    Date of Patent: January 23, 2001
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Takashi Koizumi, Masahiro Imai
  • Patent number: 6108167
    Abstract: At least one magnetic pole out of a pair of magnetic poles is provided with a T-shaped magnetic pole having a magnetic pole chip at the position contacting with a magnetic gap and an auxiliary magnetic pole which is wider than thereof. The proximity of an air bearing surface of the T-shaped magnetic pole is composed of a laminated film containing a magnetic material layer with a high saturated magnetic flux density which composes the magnetic pole chip and a portion of the auxiliary magnetic pole and a magnetic material layer with a low saturated magnetic flux density which composes the remaining portion of the auxiliary magnetic pole. When the front portion of the magnetic pole with the track width of 1.8 .mu.m or less is composed of a laminated film containing a magnetic material layer having a high saturated magnetic flux density and a magnetic material layer having a low saturated magnetic flux density, the thickness of the magnetic material layer having the high saturated magnetic flux density is 0.5 .
    Type: Grant
    Filed: September 10, 1998
    Date of Patent: August 22, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kohichi Tateyama, Hiroaki Yoda, Tadahiko Kobayashi, Hiromi Sakata, Michiko Hara, Akio Hori, Takashi Koizumi, Tomohiko Nagata
  • Patent number: 6059228
    Abstract: A hydraulic system for retracting into and extending out of the body of an aircraft a landing gear for use in taking off and landing, comprises a housing unit which has a hydraulic pump, a hydraulic actuator, a shuttle valve, an emergency valve, an actuator pressure releasing mechanism, and a mechanically locking mechanism accommodated therein. The hydraulic actuator has a piston rod assembly received therein to be reciprocably moved by the hydraulic pump to assume a retraction position and an extended position. The shuttle valve is movable with respect to the housing unit for selectively changing the flow of the hydraulic fluid between the hydraulic pump and the hydraulic actuator. The emergency valve is movable with respect to the housing unit to assume two different positions for selectively changing the flow of the hydraulic fluid between the hydraulic pump and the hydraulic actuator and the flow of the hydraulic pump and the fluid pressure reservoir.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: May 9, 2000
    Assignee: Teijin Seiki Co., Ltd.
    Inventors: Takashi Koizumi, Kiyoshi Miyajima
  • Patent number: 5841317
    Abstract: A differential amplifier achieving a high throughput rate with reduced power consumption includes a differential circuit, output circuit, a constant current source transistor, a drive transistor, and a switching circuit. A difference voltage relative to a difference between voltages applied to non-inverting and inverting inputs of the differential circuit is applied to the switching circuit. The switching circuit supplies a drive signal to the drive transistor to enable the drive transistor when the difference voltage is below a predetermined threshold voltage, and to disable the drive transistor when the difference voltage is above the predetermined threshold voltage.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: November 24, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tetsurou Ohmori, Yoshito Date, Takashi Koizumi, Yoshio Imamura, Osamu Sarai
  • Patent number: 5276822
    Abstract: An information processor includes an immediate data latch and a pair of multiplexers in an input portion of an adder in a data address generator. The structure controls operation of the multiplexer in accordance with a register conflict detecting control signal and eliminates an idle state of a pipeline by detecting a register conflict between a register for holding immediate data, indicated by a precedent instruction instructing a specific register to store the immediate data, and a register used for calculation of memory addresses to be used for execution of a succeeding load/store instruction. The immediate data latch directly latches an immediate data indicated by the precedent instruction and outputted by an instruction decoding portion. Then, if the register conflict detecting portion detects the register conflict, the immediate data latched by the immediate data latch is used for calculation of memory addresses.
    Type: Grant
    Filed: November 14, 1990
    Date of Patent: January 4, 1994
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hidetsugu Maekawa, Takashi Koizumi
  • Patent number: 5178835
    Abstract: A biochemical analysis apparatus for applying a liquid sample onto a long test film, incubating the sample-applied film portion by an incubator, and measuring the degree of color formation at the sample-applied portion comprises a cutter provided upstream from the position of sample application for cutting the long test film to a length necessary for a single step of sample application, and a cut-film conveyor for conveying the sample-applied and cut portion of the long test film into the incubator, whereby the long test film is utilized efficiently and processing thereof is facilitated.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: January 12, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tadashi Uekusa, Takashi Koizumi, Yukihide Miyata
  • Patent number: 5134430
    Abstract: A photosensitive material such as film is conveyed while the widthwise edges thereof are guided by width guides. The width guides have an adjusting part such as a screw to adjust the position thereof when the width of the photosensitive material changes. The adjusting part, even when the width dimension of the sensitized material does not change, is driven at a specified interval such as every few hours to remove a precipitate such as a developer which is deposited on the adjusting part.
    Type: Grant
    Filed: January 16, 1991
    Date of Patent: July 28, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Takashi Koizumi
  • Patent number: 5094816
    Abstract: A biochemical analysis apparatus for applying a liquid sample onto a long test film, incubating the sample-applied film portion by an incubator, and measuring the degree of color formation at the sample-applied portion comprises a test film conveyor for continuously conveying at least the part of the long test film inside of the incubator so that a speed v [cm/min.] at which the part of the long test film inside of the incubator is conveyed is expressed as v=n.l. The incubator is constituted so that a length L [cm] of the incubator in the direction of conveyance of the long test film satisfies the condition of L.gtoreq.(nt+1).l, where l [cm] denotes the length of a portion of the long test film necessary for a single step of sample application, t [min.] denotes the incubation time, and n [number/min.] denotes the number of repetitions of sample application per unit time.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: March 10, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideo Ishizaka, Shinichi Nakama, Tadashi Uekusa, Yoshio Saito, Yukihide Miyata, Takashi Koizumi
  • Patent number: 5087132
    Abstract: A method for manufacturing a resin impregnated cloth bearing surface wherein the resin impregnated cloth is deaerated to reduce air bubbles in the finished bearing.
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: February 11, 1992
    Assignee: Tsubakimoto Chain Company
    Inventors: Kouji Tanaka, Masaaki Ikeda, Yasumasa Tsubakimoto, Takashi Koizumi, Takerou Nakagawa, Makato Kanehira