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).

  • Patent number: 7684649
    Abstract: To improve accuracy of determining the average brightness level and maximum and minimum levels of the brightness signals for the entire screen. There are included a differential operation circuit that detects and differentiates rise or breaking edges in horizontal and vertical synchronous signals of an input image signal, thereby outputting horizontal and vertical differential signals synchronized with the horizontal and vertical synchronous signals, respectively; a sample window circuit that detects the beginning and ending positions of horizontal and vertical intervals to produce sample window signals established in any desired vertical and horizontal positions on the screen in accordance with the horizontal and vertical differential signals; and a brightness signal output circuit that outputs sampled brightness signals when the sample window circuit is operative.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: March 23, 2010
    Assignee: Panasonic Corporation
    Inventors: Hisao Kunitani, Satoru Tanigawa, Takashi Koizumi
  • Publication number: 20100009939
    Abstract: The present invention provides a combination drug which is useful for the prevention or treatment of thromboembolism. A pharmaceutical agent comprising an antiplatelet agent in combination with a 5-amidino-2-hydroxybenzenesulfonamide derivative represented by the general formula: wherein R represents a hydrogen atom or a lower alkyl group, and Z represents a hydrogen atom or a hydroxy group, or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: September 16, 2009
    Publication date: January 14, 2010
    Applicant: Kissei Pharmaceutical Co., Ltd.
    Inventors: Yuji HOYANO, Toshiki Honma, Takashi Koizumi, Satoshi Akahane
  • Patent number: 7563822
    Abstract: The present invention relates to an agent for the prevention or treatment of a renal disease comprising as an active ingredient a 5-amidino-2- hydroxybenzenesulfonamide derivative represented by the general formula: wherein R1 is a hydrogen atom or an optionally substituted alkyl group; R2 is a dialkylamino group, an alkyl group, a cycloalkyl group, an optionally substituted aryl group etc.; T is an oxygen atom, a sulfur atom etc.; Q is a hydrogen atom or an optionally substituted alkyl group; and Z is a hydrogen atom, a hydroxy group etc., or a pharmaceutically acceptable salt thereof which has an inhibitory effect on mesangial cell proliferation and a decreasing effect on protein excretion in urine, and are useful for preventing or treating of various renal diseases such as IgA nephropathy, diabetic nephropathy, nephritic syndrome and the like.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: July 21, 2009
    Assignee: Kissei Pharmaceutical Co., Ltd.
    Inventors: Takashi Koizumi, Yuji Hoyano, Satoshi Akahane
  • Patent number: 7458212
    Abstract: A back-pressure valve comprises a case having first and second oil chambers through which oil passes. A piston is slidably accommodated within the case to partition the first oil chamber and the second oil chamber. A spring urges the piston in a sliding direction. A projecting member and a check valve allow the first oil chamber to communicate with the second oil chamber when the pressure of the oil in the first fluid chamber reaches a predetermined pressure. An area of the piston on which oil pressure is received in the first oil chamber is made lager than an area on which oil pressure is received in the second oil chamber. A part of the piston located at an end thereof opposite to the end thereof which faces the first oil chamber communicates with the outside of the case.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: December 2, 2008
    Assignee: Nabtesco Corporation
    Inventors: Takashi Koizumi, Toshio Kamimura
  • Publication number: 20080269364
    Abstract: A filling foam composition contains a polymer, 4,4?-oxybis(benzenesulfonylhydrazide), an amine compound (except urea compound) having a melting point of 40° C. or more, and an organic peroxide, and the amine compound is mixed in an amount of 5 parts by weight or more per 100 parts by weight of the 4,4?-oxybis(benzenesulfonylhydrazide).
    Type: Application
    Filed: April 21, 2008
    Publication date: October 30, 2008
    Applicant: Nitto Denko Corporation
    Inventors: Takehiro Ui, Takashi Koizumi
  • Publication number: 20070216815
    Abstract: [PROBLEMS]To improve accuracy of determining the average brightness level and maximum and minimum levels of the brightness signals for the entire screen. [MEANS FOR SOLVING THE PROBLEMS]There are included a differential operation circuit that detects and differentiates rise or breaking edges in horizontal and vertical synchronous signals of an input image signal, thereby outputting horizontal and vertical differential signals synchronized with the horizontal and vertical synchronous signals, respectively; a sample window circuit that detects the beginning and ending positions of horizontal and vertical intervals to produce sample window signals established in any desired vertical and horizontal positions on the screen in accordance with the horizontal and vertical differential signals; and a brightness signal output circuit that outputs sampled brightness signals when the sample window circuit is operative.
    Type: Application
    Filed: April 20, 2005
    Publication date: September 20, 2007
    Inventors: Hisao Kunitani, Satoru Tanigawa, Takashi Koizumi
  • Patent number: 7271808
    Abstract: When a contention is detected between a memory write address and a display read address in a memory circuit which stores display data, a host retry pulse generating circuit generates a display read signal and a display line data transfer signal based on a memory write clock, and supplies these to the memory circuit while supplying the display line data transfer signal to a line latch circuit. Alternatively, upon detection of the contention above, a same line re-display read processing circuit performs same line re-display read processing without moving to the next line, and supplies a display read signal and a display line data transfer signal to the memory circuit while supplying the display line data transfer signal to the line latch circuit.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: September 18, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Seiichi Moriyama, Naoto Osaka, Takashi Koizumi, Hiroyuki Kageyama, Hiroyuki Morinaga, Noriko Kaku, Yumiko Kataoka
  • Patent number: 7258209
    Abstract: A brake drum includes a ring-shaped drum body, and a friction member secured to the inner circumferential surface of the drum body. Because the drum body is formed of a lightweight Al alloy and the friction member is formed of an Al-base composite material, the brake drum can be reduced in weight as a whole. Further, because the friction member, having projection portions formed on its outer periphery, is cast enveloped by molten metal of the Al alloy, the friction member and the drum body can be firmly fastened together. Thus, even when a great braking force is applied to the drum brake, the friction member can be prevented from being undesirably detached from the drum body.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: August 21, 2007
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takashi Koizumi, Takaharu Echigo, Hiroto Shoji, Yasuhiro Nakao, Kunitoshi Sugaya
  • Publication number: 20060141162
    Abstract: A first pigment made of a coloring pigment having a primary average particle diameter of 200 nm or smaller or, or made of carbon black having an average particle diameter of a structure of 100 nm or smaller, and a second pigment made of barium sulfate having a primary average particle diameter of 55 nm or smaller are combined so that a value of (acid amount-base amount) of one pigment becomes positive, and a value of (acid amount-base amount) of other pigment becomes negative, and the combined first and second pigments are dispersed in a medium in the presence of a pigment dispersant.
    Type: Application
    Filed: December 27, 2005
    Publication date: June 29, 2006
    Inventors: Hifumi Egusa, Shinji Shimada, Nobuhisa Sudo, Takashi Koizumi, Makiko Nanke
  • Patent number: 6966966
    Abstract: A protective sheet peeling device which reliably separates, from a sheet, a protective sheet (an interleaf sheet) which is superposed with one surface of the sheet. A free roller is disposed at a downstream side of a conveying roller of a peeling section, in a state in which one portion of the free roller is disposed on an “imaginary conveying locus” of a printing plate precursor. Further, a displacement roller is disposed at a downstream side of the free roller. After the printing plate precursor, which is superposed with the interleaf sheet, has passed by the free roller, when the displacement roller moves to a position of reaching the “imaginary conveying locus”, the printing plate precursor and the interleaf sheet are curved along the free roller. Due to reverse rotation of the displacement roller, the interleaf sheet is peeled off of the printing plate precursor.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: November 22, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takashi Koizumi, Yoshinori Kawamura
  • Patent number: 6964228
    Abstract: A conveying device has: a moving member provided so as to be movable; a rotating member rotatably supported at the moving member; and a holding member rotatably supported at the rotating member, and able to hold a sheet. In a state in which the holding member is holding the sheet, the holding member conveys the sheet by at least one of movement of the moving member, rotation of the rotating member with respect to the moving member, and rotation of the holding member with respect to the rotating member.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: November 15, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takashi Koizumi, Kazuoki Komiyama, Yoshinori Kawamura
  • Publication number: 20050193887
    Abstract: A back-pressure valve comprising a case through which oil passes and in the interior of which a first oil chamber and a second oil chamber are defined, a piston slidably accommodated within the case so as to partition the first oil chamber and the second oil chamber, a spring and a spring which urge the piston in a sliding direction thereof, and a projecting member and a check valve which allow the first oil chamber to communicate with the second oil chamber when the pressure of the oil in the first fluid chamber reaches a predetermined pressure, wherein an area of the piston on which oil pressure is received in the first oil chamber is made lager than an area thereof on which oil pressure is received in the second oil chamber, and wherein part of the piston which is located at an end thereof which is opposite to the other end thereof which faces the first oil chamber is made to communicate with the outside of the case.
    Type: Application
    Filed: March 2, 2005
    Publication date: September 8, 2005
    Inventors: Takashi Koizumi, Toshio Kamimura
  • Patent number: 6935238
    Abstract: A conveying device for a printing plate precursor which takes the printing plate precursor and an interleaf sheet out from a cassette, and which, along a conveying path to an exposure section, takes-off only the interleaf sheet. When a leading end of the interleaf sheet passes by an interleaf sheet peeling roller disposed on the conveying path, the interleaf sheet peeling roller rotates in a direction opposite to a direction of conveying to the exposure section, and contacts the interleaf sheet, and slack is formed in the interleaf sheet between the interleaf sheet peeling roller and a conveying roller. A slack portion is nipped between two belts and fed to a forked-off path, and the interleaf sheet is removed from the conveying path. It is possible to feed only the printing plate precursor out to the exposure section while continuing to convey the printing plate precursor.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: August 30, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshinori Kawamura, Takashi Koizumi, Kazuoki Komiyama, Yoshihiro Koyanagi
  • Patent number: 6929258
    Abstract: A sheet feeder for use, with a stack having plates and sheets alternating. Sheets are removed by being reliably suction adhered with a sucker. The sheet feeder includes a suction device, and the sucker and device are mounted at a supporting portion. In order to allow suction adhering of the plates and sheets alternately stacked in a magazine, the suction device is operated when the sucker is brought into contact with the sheet, and the sheet is raised separately from the plate. Thereafter, the sheet is suction adhered to the sucker by suction. This makes it possible to prevent the sucker from suction adhering to the plate together with the sheet, and only the sheet is reliably from the stack.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: August 16, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tsukasa Ono, Takashi Koizumi, Yoshinori Kawamura, Kazuhisa Okamoto
  • Patent number: 6904844
    Abstract: In a removing/conveying portion of a printing plate removing/supplying device, when one cassette among a plurality of cassettes is empty, the empty cassette is placed on a raising/lowering stand and moved to a loading space. Due to a spur gear being rotated clockwise by a motor, a sliding cover, with which the spur gear is engaging, is moved toward a removing portion such that an opening of a cassette stocker portion is opened. In this way, it is possible to refill and load printing plates from a top side of the cassette stocker portion into the empty cassette positioned at the loading space.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: June 14, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takashi Koizumi, Yoshinori Kawamura
  • Publication number: 20050107354
    Abstract: The present invention relates to an agent for the prevention or treatment of a renal disease comprising as an active ingredient a 5-amidino-2-hydroxybenzenesulfonamide derivative represented by the general formula: wherein R1 is a hydrogen atom or an optionally substituted alkyl group; R2 is a dialkylamino group, an alkyl group, a cycloalkyl group, an optionally substituted aryl group etc.; T is an oxygen atom, a sulfur atom etc.; Q is a hydrogen atom or an optionally substituted alkyl group; and Z is a hydrogen atom, a hydroxy group etc., or a pharmaceutically acceptable salt thereof which has an inhibitory effect on mesangial cell proliferation and a decreasing effect on protein excretion in urine, and are useful for preventing or treating of various renal diseases such as IgA nephropathy, diabetic nephropathy, nephritic syndrome and the like.
    Type: Application
    Filed: March 18, 2003
    Publication date: May 19, 2005
    Inventors: Takashi Koizumi, Yuji Hoyano, Satoshi Akahane
  • Patent number: 6880681
    Abstract: A brake drum includes a ring-shaped drum body (13), and a friction member (16) secured to the inner circumferential surface (18) of the drum body. Because the drum body is formed of a lightweight Al alloy and the friction member is formed of an Al-base composite material, the brake drum can be reduced in weight as a whole. Further, because the friction member, having projecting portions (17a) formed on its outer periphery (17), is cast-enveloped by molten metal of the Al alloy, the friction member and the drum body can be firmly fastened together. Thus, even when a great braking force is applied to the drum brake, the friction member can be prevented from being undesirably detached from the drum body.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: April 19, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takashi Koizumi, Takaharu Echigo, Hiroto Shoji, Yasuhiro Nakao, Kunitoshi Sugaya
  • Publication number: 20050072640
    Abstract: A brake drum includes a ring-shaped drum body, and a friction member secured to the inner circumferential surface of the drum body. Because the drum body is formed of a lightweight Al alloy and the friction member is formed of an Al-base composite material, the brake drum can be reduced in weight as a whole. Further, because the friction member, having projection portions formed on its outer periphery, is cast enveloped by molten metal of the Al alloy, the friction member and the drum body can be firmly fastened together. Thus, even when a great braking force is applied to the drum brake, the friction member can be prevented from being undesirably detached from the drum body.
    Type: Application
    Filed: November 23, 2004
    Publication date: April 7, 2005
    Applicant: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takashi Koizumi, Takaharu Echigo, Hiroto Shoji, Yasuhiro Nakao, Kunitoshi Sugaya
  • Publication number: 20050001857
    Abstract: An image display device of this invention includes image memory (3) which is constructed of SRAM and which does not need any refreshing operation, image memory (3) being composed of MSB division memory (13) for storing MSB data of each pixel data item and lower-order bit division memory (14) for storing lower-order bit data other than the MSB data. In a normal mode MSB division memory (13) and lower-order bit division memory (14) are driven to cause the MSB data and the lower-order bit data to be read/written, whereas in an electric power saving mode only MSB division memory (13) is driven with lower-order bit division memory (14) remaining undriven to cause the MSB data to be read/written.
    Type: Application
    Filed: June 21, 2002
    Publication date: January 6, 2005
    Inventors: Tomoki Nakakita, Makoto Yamakura, Mika Nakamura, Takashi Koizumi
  • Publication number: 20040217963
    Abstract: When a contention is detected between a memory write address and a display read address in a memory circuit which stores display data, a host retry pulse generating circuit generates a display read signal and a display line data transfer signal based on a memory write clock, and supplies these to the memory circuit while supplying the display line data transfer signal to a line latch circuit. Alternatively, upon detection of the contention above, a same line re-display read processing circuit performs same line re-display read processing without moving to the next line, and supplies a display read signal and a display line data transfer signal to the memory circuit while supplying the display line data transfer signal to the line latch circuit.
    Type: Application
    Filed: April 28, 2004
    Publication date: November 4, 2004
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Seiichi Moriyama, Naoto Osaka, Takashi Koizumi, Hiroyuki Kageyama, Hiroyuki Morinaga, Noriko Kaku, Yumiko Kataoka