Patents by Inventor Junji Ito

Junji Ito 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: 7090903
    Abstract: An ink-jet recording sheet, comprising a support having thereon a porous ink receiving layer, the porous ink receiving layer including inorganic particles, a hydrophilic binder and a polymer, wherein the polymer has a plurality of carbon-carbon unsaturated bonds, provided that the unsaturated bonds are non-aromatic; the polymer has a recurring unit derived from butadiene or isoprene.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: August 15, 2006
    Assignee: Konica Corporation
    Inventors: Eisaku Katoh, Atsushi Tomotake, Toshihiko Iwasaki, Masayuki Ushiku, Junji Ito, Yukako Taka
  • Publication number: 20050184790
    Abstract: When a signal of a double frequency is generated from the original signal, conventionally a 90-degree phase-shift circuit is necessary to suppress an output of a DC component and efficiently obtain a double wave. According to the present invention, an equal RF signal is inputted to input terminals and an output is matched with a frequency as high as that of the original frequency in a Gillbert cell double-balanced mixer, so that a doubled output is obtained with no DC offset. According to the circuit configuration of the present invention, it is possible to provide a circuit readily performing integration and to efficiently output only a double frequency merely by inputting a simple differential signal without the need for the original signal which has been phase controlled. Further, a DC short circuit in the resonance circuit makes it possible to eliminate a DC offset voltage in an output.
    Type: Application
    Filed: February 16, 2005
    Publication date: August 25, 2005
    Applicant: Matsushita Elec. Inc. Co. Ltd.
    Inventor: Junji Ito
  • Publication number: 20050116375
    Abstract: The present invention provides polarized electrodes that ensure a satisfactory packing ratio of activated carbon particles and conductive particulates and favorable contact between these and an electrolyte, and demonstrate high capacitance. The present invention relates to the following electrode materials for polarized electrodes: (1) electrode materials for polarized electrodes containing a rubber-based emulsion, activated carbon particles, conductive particulates, and a surfactant; and (2) electrode materials for polarized electrodes containing a dispersion of polytetrafluoroethylene, activated carbon particles, conductive particulates, and a surfactant, wherein the solid content is 25% by weight or more.
    Type: Application
    Filed: January 28, 2003
    Publication date: June 2, 2005
    Inventor: Junji Ito
  • Publication number: 20050089652
    Abstract: An inkjet recording sheet comprising on a water-nonabsorptive support a porous ink absorptive layer, wherein; said porous ink absorptive layer is formed by utilizing a composition containing inorganic micro-particles, polyvinyl alcohol and an organic polymer having an epoxy group, and contains a polyvalent metal compound provided with a polyvalent metal element.
    Type: Application
    Filed: October 25, 2004
    Publication date: April 28, 2005
    Inventors: Kenzo Kasahara, Toshihiko Iwasaki, Junji Ito, Yukako Taka
  • Publication number: 20050064841
    Abstract: In a receiving circuit, an antenna 11 receives a high-frequency signal at a predetermined frequency band, a level changing section 13 changes a signal level of the high-frequency signal received by the antenna, a subsequent-stage circuit 14 performs predetermined signal processing for the high-frequency signal whose signal level is changed at the level changing section 13, a detecting section 32 detects a signal level of the high-frequency signal for which the signal processing is performed by the subsequent-stage circuit 14, and a control section 33 sets a rate of change of the high-frequency signal by the level changing section 13, based on the signal level of the high-frequency signal detected by the detecting section 32, so that the signal level of the high-frequency signal detected by the detecting section 32 does not exceed a predetermined value.
    Type: Application
    Filed: September 17, 2004
    Publication date: March 24, 2005
    Inventors: Naoki Okamoto, Junji Ito
  • Patent number: 6870241
    Abstract: A high frequency switch circuit device includes an FET to be a switching element on a semiconductor substrate. The FET includes an n-type well, a gate electrode, a source layer and a drain layer. An n-type well line to be connected to an n-type well layer to be a back gate is connected to a voltage supply node via an inductor. The flow of a high frequency signal between the voltage supply node and the n-type well layer is blocked by the inductor, and the flow of a high frequency signal in the vertical direction is blocked by a depletion layer extending between the n-type well and a p-type substrate region. Moreover, the flow of a high frequency signal in the horizontal direction is blocked by a trench separation insulative layer.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: March 22, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshifumi Nakatani, Junji Ito, Ikuo Imanishi
  • Publication number: 20050003179
    Abstract: An ink jet recording material is disclosed, comprising a support having thereon a porous ink receiving layer containing inorganic particles, a polyvinyl alcohol exhibiting a degree of saponification of not less than 95 mol % and a compound represented by the following formula and having a molecular weight of not more than 200:
    Type: Application
    Filed: June 10, 2004
    Publication date: January 6, 2005
    Applicant: Konica Minolta Photo Imaging, Inc.
    Inventors: Junji Ito, Toshihiko Iwasaki, Kenzo Kasahara, Yukako Taka
  • Publication number: 20040254069
    Abstract: An exhaust gas purifying catalyst of the present invention contains alumina, and ceria loading palladium and platinum, and the ratio of palladium (IV) oxide to palladium (II) oxide by peak separation of the 3d orbital of palladium in X-ray photoelectron spectroscopy is within a range from 70:30 to 99:1. Thereby, the catalyst is capable of reducing the CO concentration and increasing the H2 concentration in an exhaust gas even after durability at high temperature.
    Type: Application
    Filed: June 8, 2004
    Publication date: December 16, 2004
    Applicant: NISSAN MOTOR CO., LTD.
    Inventor: Junji Ito
  • Patent number: 6821584
    Abstract: An ink-jet recording sheet comprising a support having thereon in the following order: (i) a first ink absorbing layer comprising gelatin and a first cationic polymer; and (ii) a second ink absorbing layer comprising gelatin and a second cationic polymer, wherein the first cationic polymer has a larger ink absorption ratio Ai than the second cationic polymer, the ink absorption ratio Ai being defined by the following equation: Ai (%)=((an optical density of a print after immersion in water)/(an optical density of a print before immersion in water))×100.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: November 23, 2004
    Assignee: Konica Corporation
    Inventors: Kouji Tashiro, Toyoki Nishijima, Shinichi Suzuki, Kunimasa Hiyama, Junji Ito
  • Publication number: 20040161554
    Abstract: An ink-jet recording sheet comprising a support having thereon an ink absorptive layer containing a multivalent metal compound which is coordinated with an amino acid.
    Type: Application
    Filed: February 10, 2004
    Publication date: August 19, 2004
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Yoshihiko Suda, Toshihiko Iwasaki, Junji Ito, Yukako Taka
  • Publication number: 20040065230
    Abstract: An ink-jet recording sheet, comprising a support having thereon a porous ink receiving layer, the porous ink receiving layer including inorganic particles, a hydrophilic binder and a polymer, wherein the polymer has a plurality of carbon-carbon unsaturated bonds, provided that the unsaturated bonds are non-aromatic; the polymer has a recurring unit derived from butadiene or isoprene.
    Type: Application
    Filed: September 26, 2003
    Publication date: April 8, 2004
    Applicant: Konical Corporation
    Inventors: Eisaku Katoh, Atsushi Tomotake, Toshihiko Iwasaki, Masayuki Ushiku, Junji Ito, Yukako Taka
  • Patent number: 6667657
    Abstract: An RF variable gain amplifying device has an amplifying circuit, a switch element connected in parallel with the amplifying circuit, and a resistor connected in parallel with the amplifying circuit and with the switch element. The amplifying circuit does not operate when the switch element is in the ON state but operates when the switch element is in the OFF state. A potential at each of the input and output terminals of the switch element is lower when the switch element is in the ON state than when the switch element is in the OFF state.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: December 23, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshifumi Nakatani, Junji Ito, Ikuo Imanishi
  • Patent number: 6664609
    Abstract: Disclosed is a circuit layout of a differential amplification circuit that constitutes a Gilbert cell, in which two multiple finger bipolar transistors forming a differential amplifier are positioned substantially axially symmetrical to each other. The longitudinal direction of each finger is orthogonal to the axis of symmetry. A wiring connected to an emitter electrode of each one of the transistors is laid so as to extend in a direction opposite to the other one of the transistors.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: December 16, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Junji Ito, Ikuo Imanishi
  • Publication number: 20030228427
    Abstract: An ink-jet recording sheet comprising a support having thereon in the following order: (i) a first ink absorbing layer comprising gelatin and a first cationic polymer; and (ii) a second ink absorbing layer comprising gelatin and a second cationic polymer, wherein the first cationic polymer has a larger ink absorption ratio Ai than the second cationic polymer, the ink absorption ratio Ai being defined by the following equation: Ai (%)=((an optical density of a print after immersion in water)/(an optical density of a print before immersion in water))=100.
    Type: Application
    Filed: May 20, 2003
    Publication date: December 11, 2003
    Inventors: Kouji Tashiro, Toyoki Nishijima, Shinichi Suzuki, Kunimasa Hiyama, Junji Ito
  • Publication number: 20030167752
    Abstract: An exhaust gas purifying system includes, an internal combustion engine, an exhaust passage of exhaust gas from the internal combustion engine, a hydrogen-catalyst provided in the exhaust passage, an NOx purifying catalyst provided on a downstream of the hydrogen-catalyst of the exhaust passage to reduce nitrogen oxides, and a control unit. The hydrogen-catalyst has a function of transmitting or generating hydrogen. In the purifying system, the control unit executes enrichment condition control for reducing an air/fuel ratio (A/F)r during enrichment to prolong a time of enrichment (tr) as a flow rate of exhaust gas emitted from the internal combustion engine is lowered in intermittent enrichment of the air/fuel ratio.
    Type: Application
    Filed: February 19, 2003
    Publication date: September 11, 2003
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yusuke Niwa, Junji Ito
  • Patent number: 6526950
    Abstract: A fuel vapor treatment or recovery system for an automotive internal combustion engine. The system comprises a canister containing a fuel vapor adsorbing material. A membrane separation module is provided to be connected to the canister and including a separation membrane for separating a mixture gas into an air-rich component and a fuel vapor-rich component. The separation membrane has an air-selective permeability so that the air-rich component is be able to pass through the separation membrane, the mixture gas containing air and fuel vapor. Additionally, a gas transporting device is provided to be connected to the canister, for causing purge gas to be introduced into the canister to purge fuel vapor from the fuel vapor adsorbing material and causing fuel vapor purged from the canister to be fed to the membrane separation module.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: March 4, 2003
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masashi Ito, Mikio Kawai, Kazuhiko Shinohara, Hiroshi Akama, Junji Ito
  • Patent number: 6503695
    Abstract: A silver halide color photographic light-sensitive material is disclosed. The silver halide color photographic light-sensitive material is exposed by scanning with a light beam having a pixel size of r &mgr;m for a time of not more than 10−3 seconds per pixel, and developed wherein the difference of a hwb value in thus obtained image in each of the color-forming layers and the value of r is within the range of form 0 to 50, in which the hwb is the half band width in &mgr;m of a line reproducing the line having a width of one pixel.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: January 7, 2003
    Assignee: Konica Corporation
    Inventors: Kazuhiro Miyazawa, Junji Ito
  • Patent number: 6475670
    Abstract: It is intended to provide an electrode material, which is excellent in electrostatic capacitance and low resistance, by improving conductive fine particle deposition factor and also improving the close contact between the conductive fine particles and the conductive base. A binder for a porous electrode, which is obtained by dispersing conductive fine particles such as active carbon and graphite and non-conductive fine particles 3 such as aluminum and zinc oxide in a rubber type binder 1 having been made porous by cross-linking, is developed on a conductive base 5 to form a porous electrode.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: November 5, 2002
    Inventor: Junji Ito
  • Publication number: 20020140502
    Abstract: An RF variable gain amplifying device has an amplifying circuit, a switch element connected in parallel with the amplifying circuit, and a resistor connected in parallel with the amplifying circuit and with the switch element. The amplifying circuit does not operate when the switch element is in the ON state but operates when the switch element is in the OFF state. A potential at each of the input and output terminals of the switch element is lower when the switch element is in the ON state than when the switch element is in the OFF state.
    Type: Application
    Filed: February 14, 2002
    Publication date: October 3, 2002
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshifumi Nakatani, Junji Ito, Ikuo Imanishi
  • Publication number: 20020135045
    Abstract: Disclosed is a circuit layout of a differential amplification circuit that constitutes a Gilbert cell, in which two multiple finger bipolar transistors forming a differential amplifier are positioned substantially axially symmetrical to each other. The longitudinal direction of each finger is orthogonal to the axis of symmetry. A wiring connected to an emitter electrode of each one of the transistors is laid so as to extend in a direction opposite to the other one of the transistors.
    Type: Application
    Filed: March 21, 2002
    Publication date: September 26, 2002
    Inventors: Junji Ito, Ikuo Imanishi