Patents by Inventor Atsushi Ueda

Atsushi Ueda 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).

  • Negative electrode for non-aqueous secondary battery and non-aqueous secondary battery using the same
    Publication number: 20040219432
    Abstract: A negative electrode of the present invention has an active material layer composed of an intermetallic compound on a collector. The intermetallic compound is capable of occluding/desorbing lithium and contains at least one kind of element A selected from Sn, In, Ge, Ga, Pb, Al, Sb, and Si, and an element X that does not substantially react with Li. In the negative electrode, a ratio Ib/Ia of highest peak intensities Ia and Ib of X-ray diffraction peaks derived from the intermetallic compound and the element A is 0.1 or less. By configuring a non-aqueous secondary battery using the above-mentioned negative electrode, the charging/discharging efficiency and cycle characteristics of a thin film electrode used for the negative electrode of the non-aqueous secondary battery are enhanced.
    Type: Application
    Filed: March 26, 2004
    Publication date: November 4, 2004
    Inventors: Eri Kojima, Hiromu Sugiyama, Atsushi Ueda, Shigeo Aoyama
  • Polymeric solid electrolyte and lithium secondary cell using the same
    Patent number: 6806004
    Abstract: A polymeric solid electrolyte capable of conducting lithium ions which contains silylamide bonds in its polymer skeleton structure, for example, which is obtained by a method comprising subjecting a mixture of lithium silylamide and an organic compound having at least one carbon—carbon double bond to a polymerization in a dry atmosphere; and a lithium secondary cell using the polymeric solid electrolyte. The polymeric solid electrolyte is a “dry” polymeric solid electrolyte which contains counter ions forming lithium salts with lithium ions in its polymer skeleton structure and thus has a single ion electron conducting system wherein lithium ions alone are mobile ions, and hence has excellent conductivity, and further is easy to produce.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: October 19, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuya Iwamoto, Takafumi Oura, Shinji Nakanishi, Atsushi Ueda, Hizuru Koshina
  • Fuel cell and anode catalyst therefor
    Publication number: 20040115515
    Abstract: An anode catalyst contains gold fine particles, and/or at least one member selected from the group consisting of titanium, vanadium, gallium, zirconium, niobium, cerium, tantalum, indium, and the oxides of these metals, and/or at least one member selected from the group consisting of platinum, ruthenium, and ruthenium oxides are coated on a conductive support.
    Type: Application
    Filed: October 24, 2003
    Publication date: June 17, 2004
    Inventors: Atsushi Ueda, Yusuke Yamada, Tetsuhiko Kobayashi, Naoko Fujiwara, Keiichiro Ukita
  • Active material for electrode and non-aqueous secondary battery using the same
    Publication number: 20040110063
    Abstract: A lithium-containing complex oxide represented by General Formula: Li1+x+&agr;Ni(1−x−y+&dgr;)/2Mn(1−x−y−&dgr;)/2MyO2 (where 0≦x≦0.15, −0.05≦x+&agr;≦0.2, 0≦y≦0.4; −0.1≦&dgr;≦0.1 (when 0≦y≦0.2) or −0.24≦&dgr;≦0.24 (when 0.2<y≦0.4); and M is at least one element selected from the group consisting of Mg, Ti, Cr, Fe, Co, Cu, Zn, Al, Ge, Zr and Sn) is provided. The lithium-containing complex oxide contains secondary particles formed of flocculated primary particles. The primary particles have a mean particle diameter of 0.3 to 3 &mgr;m, and the secondary particles have a mean particle diameter of 5 to 20 &mgr;m. By using this lithium-containing complex oxide as a positive active material, a non-aqueous secondary battery having a high capacity, excellent cycle durability and excellent storage characteristics at a high temperature is achieved.
    Type: Application
    Filed: November 20, 2003
    Publication date: June 10, 2004
    Inventors: Kazutaka Uchitomi, Atsushi Ueda, Shigeo Aoyama
  • Nonaqueous electrolyte secondary cell
    Patent number: 6723473
    Abstract: In a non-aqueous electrolyte secondary battery, a cyclic carboxylic acid ester having a high conductivity in a low-temperature environment is used as an electrolyte, and, furthermore, a cyclic carbonic acid ester having at least one carbon-carbon unsaturated bond is added thereto for the inhibition of reductive decomposition of the cyclic carboxylic acid ester.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: April 20, 2004
    Assignees: Matsushita Electric Industrial Co., Ltd., Mitsubishi Chemical Corporation
    Inventors: Takafumi Oura, Kazuya Iwamoto, Shinji Nakanishi, Atsushi Ueda, Hizuru Koshina
  • Secondary battery having a non-aqueous electrolyte
    Patent number: 6682856
    Abstract: A non-aqueous electrolyte secondary battery which comprises a positive electrode containing a lithium-containing oxide; a negative electrode containing a material capable of absorbing and releasing lithium; and a non-aqueous electrolyte containing a non-aqueous solvent containing at least one non-cyclic ester and which is excellent in storage stability at high temperatures is provided by adding an oxidation resistance improving agent such as triphenylmethane, tetraphehylmethane or the like.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: January 27, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shoichiro Watanabe, Kazuya Iwamoto, Atsushi Ueda, Jun Nunome, Hizuru Koshina
  • Nonaqueous electrolyte secondary cell
    Publication number: 20040013945
    Abstract: In order to suppress deterioration in battery characteristics of a non-aqueous electrolyte secondary battery at a high temperature and to reduce the amount of gas generated within the battery, as a solute constituting an electrolyte, at least one selected from the group consisting of LiPF6, LiBF4, LiSbF6 and LiAsF6 as well as at least one selected from the group consisting of LiPFa(CbF2b+1)6a. LiPFc(CdF2d+1SO2)6−c, LiBFe(CfF2f+1)4−e, LiBFg(ChF2h+1SO2)4−g are used.
    Type: Application
    Filed: January 15, 2003
    Publication date: January 22, 2004
    Inventors: Atsushi Ueda, Kumiko Sonoda, Kazuya Iwamoto
  • Laser CVD device and laser CVD method
    Publication number: 20040011289
    Abstract: A laser CVD device capable of tightening adhesion of a film formed by laser CVD to a film formation face of a substrate and preventing cracks from occurring in the film itself is to be provided. The device comprises a plasma pretreating unit for turning pretreating gas into a plasma state by arc discharge and for supplying the plasma sate gas to the film formation face; and a film forming unit having means for sealing film forming gas while being isolated from an external atmosphere, means for radiating a laser beam to the film forming gas, wherein the film is formed over the film formation face of the substrate.
    Type: Application
    Filed: June 20, 2003
    Publication date: January 22, 2004
    Applicant: NEC Corporation
    Inventors: Yukio Morishige, Atsushi Ueda
  • Lithium secondary cell
    Patent number: 6645667
    Abstract: A lithium secondary cell comprising a safe aqueous-solution electrolyte free from danger of firing and explosion and capable of supplying a high voltage of more than 3 V. The cell includes a positive plate having an active material absorbing/desorbing lithium ions and exhibiting a high voltage, a negative plate having an active material exhibiting a low voltage, a polymer solid electrolyte having a lithium-ionic conductivity, and an aqueous-solution electrolyte. The positive and negative plates are coated with a polymer solid electrolyte having an ionic conductivity and therefore isolated from the aqueous-solution electrolyte by the plate coating layers.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: November 11, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuya Iwamoto, Takafumi Oura, Shinji Nakanishi, Atsushi Ueda, Hizuru Koshina
  • Non-aqueous electrochemical device
    Patent number: 6630272
    Abstract: The present invention relates to an electrolyte for non-aqueous electrochemical device containing at least one of 6-substituted-1,3,5-triazine-2,4-dithiol and derivatives thereof as an additive and a non-aqueous electrochemical device, particularly a lithium secondary battery by the use thereof. The additive of the present invention forms a stable and low resistance film on the positive electrode, inhibiting characteristics of the electrochemical device from deteriorating on account of gas generated due to the decomposition of electrolyte.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: October 7, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuya Iwamoto, Takafumi Oura, Shinji Nakanishi, Atsushi Ueda, Hizuru Koshina
  • Image processing apparatus and method
    Publication number: 20030184812
    Abstract: The present invention provides an image processing technique capable of determining input image data obtained by a digital camera and generating output image data which can be visually outputted with equivalent tone and color characteristics even from a different output device from the input image data in consideration of tone characteristics. An application AP stored in a storing unit 15 is loaded into a memory 10b, and a control unit 10 is activated as an image processing apparatus.
    Type: Application
    Filed: March 17, 2003
    Publication date: October 2, 2003
    Applicant: MINOLTA CO., LTD.
    Inventors: Jun Minakuti, Atsushi Ueda
  • Non-aqueous electrolyte secondary battery and method for producing the same
    Patent number: 6589689
    Abstract: For providing a non-aqueous electrolyte secondary battery having excellent storage characteristics when stored in the charged state under a high temperature condition, the non-aqueous electrolyte or the negative electrode is made to contain divinylethylene carbonate, thereby to form a film derived from divinylethylene carbonate on the surface of the negative electrode material.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: July 8, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takafumi Oura, Kazuya Iwamoto, Atsushi Ueda, Hiroshi Yoshizawa
  • Non-aqueous electrochemical apparatus and electrolyte thereof
    Patent number: 6576373
    Abstract: A salicyl derivative or a salicylidene derivative such as salicyl alcohol or salicylaldehyde is added to a non-aqueous electrolyte to prevent evolution of gas caused by decomposition of the solvent.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: June 10, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuya Iwamoto, Atsushi Ueda, Masaki Deguchi, Masatoshi Nagayama, Hiroshi Nishiyama, Hiroshi Yoshizawa
  • Lithium-containing composite oxide and nonaqueous secondary cell using the same, and method for manufacturing the same
    Publication number: 20030082452
    Abstract: Because of the composition represented by General Formula: Li1+x+&agr;Ni(1−x−y+&dgr;)/2Mn(1−x−y−&dgr;)/2MyO2 (where 0≦x≦0.05, −0.05≦x+&agr;≦0.05, 0≦y≦0.4; −0.1≦&dgr;≦0.1 (when 0≦y≦0.2) or −0.24≦&dgr;≦0.24 (when 0.2≦y≦0.4); and M is at least one element selected from the group consisting of Ti, Cr, Fe, Co, Cu, Zn, Al, Ge and Sn), a high-density lithium-containing complex oxide with high stability of a layered crystal structure and excellent reversibility of charging/discharging can be provided, and a high-capacity non-aqueous secondary battery excellent in durability is realized by using such an oxide for a positive electrode.
    Type: Application
    Filed: July 16, 2002
    Publication date: May 1, 2003
    Inventors: Atsushi Ueda, Kazutaka Uchitomi, Shigeo Aoyama
  • Non-aqueous electrolyte secondary battery
    Publication number: 20020192565
    Abstract: In an electrolyte of a non-aqueous electrolyte secondary battery using a cyclic carboxylic-acid ester exerting high conductivity under a low temperature condition, for suppressing reductive decomposition of the cyclic carboxylic acid ester, a cyclic carbonic acid ester having at least one carbon-carbon unsaturated bond is contained, and for suppressing excessive polymerization reaction of the cyclic carbonic acid ester having at least one carbon-carbon unsaturated bond, a cyclic carbonic acid ester having no carbon-carbon unsaturated bond is further contained.
    Type: Application
    Filed: January 28, 2002
    Publication date: December 19, 2002
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Atsushi Ueda, Kazuya Iwamoto, Takafumi Oura, Hiroshi Yoshizawa, Masaki Deguchi, Takaharu Morikawa
  • Apparatus for evaluating catalyst performance
    Patent number: 6495105
    Abstract: Apparatus 1 for evaluating catalyst performance according to the invention comprises a reaction vessel 2 in which a plurality of catalysts S are disposed at a distance, supply pipes 3 for supplying a reactant gas into the reaction vessel 2, a plurality of measuring instruments 7 provided with gas sensors 71 for sensing the gas formed by the contact of the reactant gas with a plurality of catalysts S, and outputting signals according to the kinds and concentrations of the formed gas, and a calculating unit 8 for receiving the output signals from the plurality of measuring instruments 7 and identifying the kinds of the formed gas and calculating the concentrations thereof. With such a constitution, performance evaluation on a plurality of catalysts can be made concurrently, quick and in simple steps.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: December 17, 2002
    Assignee: Agency of Industrial Science and Technology
    Inventors: Yusuke Yamada, Atsushi Ueda, Tetsuhiko Kobayashi
  • Serial printer detecting set condition for image formation and method of controlling the same
    Publication number: 20020136583
    Abstract: A serial printer includes a carriage reciprocating in a main scanning direction, a reading sensor mounted in carriage, a timing fence arranged in the main scanning direction, a mechanism preventing movement of carriage in the main scanning direction, and a controlling portion detecting a set condition for image formation in accordance with read data of timing fence from reading sensor for controlling image formation. Controlling portion detects the set condition for image formation only in accordance with the read data of timing fence, so that detection of the set condition for image formation is enabled without increasing the size of an apparatus and cost, or without decreasing a processing efficiency in image formation.
    Type: Application
    Filed: May 20, 2002
    Publication date: September 26, 2002
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Atsushi Ueda, Hirotoshi Iemura, Hajime Horinaka, Masaharu Kimura, Norihiro Ochi, Shunichi Hayashiyama
  • Serial printer detecting set condition for image formation and method of controlling the same
    Patent number: 6419409
    Abstract: A serial printer includes a carriage reciprocating in a main scanning direction, a reading sensor mounted in carriage, a timing fence arranged in the main scanning direction, a mechanism preventing movement of carriage in the main scanning direction, and a controlling portion detecting a set condition for image formation in accordance with read data of timing fence from reading sensor for controlling image formation. Controlling portion detects the set condition for image formation only in accordance with the read data of timing fence, so that detection of the set condition for image formation is enabled without increasing the size of an apparatus and cost, or without decreasing a processing efficiency in image formation.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: July 16, 2002
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Atsushi Ueda, Hirotoshi Iemura, Hajime Horinaka, Masaharu Kimura, Norihiro Ochi, Shunichi Hayashiyama
  • Non-aqueous electrolyte and electrochemical device comprising the same
    Publication number: 20020028389
    Abstract: A non-aqueous electrolyte is disclosed, which comprises a non-aqueous solvent and a solute represented by the general formula(1): MBR1R2R3R4, wherein M is an alkali metal atom or an ammonium group and R1 to R4 are each independently electron withdrawing groups or electron withdrawing atoms bound to B where at least one of R1 to R4 is other than a fluorine atom. The solute has a thermal stability substantially equal to that of LiBF4 and an anion portion having a high electronegativity, and easily dissociates into ions. Therefore, a non-aqueous electrolyte containing this solute has a high ionic conductivity and is difficult to cause a generation of a gas or deterioration in characteristics due to the decomposition of the solute, which occurs during use at high temperatures or after storage at high temperatures.
    Type: Application
    Filed: July 10, 2001
    Publication date: March 7, 2002
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kumiko Sonoda, Atsushi Ueda, Kazuya Iwamoto
  • Nonaqueous electrolyte battery and nonaqueous electrolytic solution
    Publication number: 20020015895
    Abstract: A nonaqueous electrolyte battery having excellent preservability may be obtained. The battery includes a positive electrode, a negative electrode, and nonaqueous electrolytic solution containing organic solvent and electrolytic salt dissolved in the organic solvent. Further, the battery includes a compound containing boron and silicon. Preferably, the nonaqueous electrolytic solution comprises organic solvent, electrolytic salt dissolved in the organic solvent, and a compound containing boron and silicon, which is added into the organic solvent.
    Type: Application
    Filed: April 3, 2001
    Publication date: February 7, 2002
    Inventors: Atsushi Ueda, Kazuya Iwamoto, Hiroshi Yoshizawa