Patents by Inventor Kei Yoshida

Kei Yoshida 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: 20100012931
    Abstract: Provided are a polycyclic compound of a compound having such a structure that two benzene rings bond to a central benzene ring each other to form a fused ring and another fused ring bonds to a terminal thereof, and an organic electroluminescence device including one or more organic thin film layers containing a light emitting layer between a cathode and an anode, in which at least one of the organic thin film layers includes the polycyclic compound of the present invention. The organic electroluminescence device has high luminous efficiency, no defect in pixels, and long lifetime. In addition, provided is a polycyclic compound realizing the organic electroluminescence device.
    Type: Application
    Filed: September 2, 2009
    Publication date: January 21, 2010
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoki KATO, Masaki Numata, Kazuki Nishimura, Toshihiro Iwakuma, Chishio Hosokawa, Kei Yoshida
  • Publication number: 20090233962
    Abstract: The present invention is to provide a compound represented by the general formula (1) exhibiting a high insecticidal effect and an insecticide comprising the compound as an active ingredient. The compound represented by the general formula (1) and an insecticide comprising the compound as an active ingredient, wherein, in the formula, A1, A2, A3 and A4 each represent a carbon atom or the like; R1 and R2 each represent a hydrogen atom or the like; G1 and G2 represent an oxygen atom or the like; Xs each represent a hydrogen atom, a halogen atom or the like; n represents an integer of 0 to 4; Q1 represents a substituted phenyl group, a substituted heterocyclic group or the like; Q2 represents a substituted phenyl group, a substituted heterocyclic group or the like.
    Type: Application
    Filed: June 20, 2006
    Publication date: September 17, 2009
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Akiyoshi Kai, Takeo Wakita, Hiroyuki Katsuta, Kei Yoshida, Hidetaka Tsukada, Yusuke Takahashi, Nobuyuki Kawahara, Michikazu Nomura, Hidenori Daido
  • Publication number: 20090099204
    Abstract: The present invention is to provide a compound represented by the general formula (1) exhibiting a high insecticidal effect and an insecticide comprising the compound as an active ingredient. The compound represented by the general formula (1) and an insecticide comprising the compound as an active ingredient, wherein, in the formula, A1, A2, A3 and A4 each represent a carbon atom or the like; R1 and R2 are each a hydrogen atom, an alkyl group or the like; G1 and G2 are each an oxygen atom or the like; X represents a hydrogen atom, a halogen atom or the like; n is an integer of 0 to 4; Q1 represents a substituted phenyl group, a substituted heterocyclic group or the like; Q2 represents a phenyl group having a haloalkyl sulfur group or the like, a heterocyclic group or the like.
    Type: Application
    Filed: June 20, 2006
    Publication date: April 16, 2009
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Kei Yoshida, Yumi Kobayashi, Michikazu Nomura, Nobuyuki Kawahara, Hidenori Daido, Shinichi Inomata
  • Patent number: 7398849
    Abstract: A structure for mounting electronic apparatuses in an electric motor-driven vehicle has a pair of first brackets each having a base part that is fixed to the side face of a chassis frame extending in the longitudinal direction of the vehicle and an arm part extending in the lateral direction of the vehicle. A pair of second brackets is fixed to the upper surfaces of the arm parts such that they extend in the longitudinal direction of the vehicle with a space between them. A battery unit is placed on the upper surfaces of the second brackets, and an electronic apparatus unit is placed under the battery unit between the second brackets. The structure enables electronic apparatuses to be mounted compactly, improves the efficiency of the electric motor by reducing the length of high voltage electric cables, and increases the available space for mounting the refrigerating system.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: July 15, 2008
    Assignee: Mitsubishi Fuso Truck and Bus Corporation
    Inventor: Kei Yoshida
  • Patent number: 7375777
    Abstract: A reflective color display device having a color filter with portions for filtering or transmitting light components of a predetermined wavelength to increase luminance. At least portions of the color filter are integrated with a light scattering portion.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: May 20, 2008
    Assignee: TPO Hong Kong Holding Limited
    Inventor: Kei Yoshida
  • Publication number: 20070275980
    Abstract: An object of the present invention is to provide a compound represented by Formula (1): wherein A1, A2, A3 and A4 each represent a carbon atom, a nitrogen atom or an oxidized nitrogen atom; R1 and R2 each represent a hydrogen atom, an optionally substituted alkyl group or an optionally substituted C1-C4 alkylcarbonyl group; G1 and G2 each represent an oxygen atom or a sulfur atom; X, which may be identical or different each other, represents a hydrogen atom, a halogen atom, a C1-C3 alkyl group or a trifluoromethyl group; n is an integer of 0 to 4; and Q1 represents an optionally substituted phenyl group, an optionally substituted naphthyl group or an optionally substituted heterocyclic group; Q2 represents a phenyl group or heterocyclic group having one or more substituents, at least one of the substituent being any of a C1-C4 haloalkoxy group, a C2-C6 perfluoroalkyl group, a C1-C6 perfluoroalkylthio group, a C1-C6 perfluoroalkylsulfinyl group and a C1-C6 perfluoroalkylsulfonyl group, an insecticid
    Type: Application
    Filed: December 24, 2004
    Publication date: November 29, 2007
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Kei Yoshida, Takeo Wakita, Hiroyuki Katsuta, Akiyoshi Kai, Yutaka Chiba, Kiyoshi Takahashi, Hiroko Kato, Nobuyuki Kawahara, Michikazu Nomura, Hidenori Daido, Junji Maki, Shinichi Banba
  • Publication number: 20070027154
    Abstract: An object of the present invention is to provide insecticides having high effectiveness.
    Type: Application
    Filed: August 23, 2004
    Publication date: February 1, 2007
    Applicant: MITSUI CHEMICALS., INC.
    Inventors: Kei Yoshida, Takeo Wakita, Hiroyuki Katsuta, Akiyoshi Kai, Yutaka Chiba, Kiyoshi Takahashi, Hiroko Kato, Nobuyuki Kawahara, Michikazu Nomura, Hidenori Daido, Junji Maki, Shinichi Banba, Atsuko Kawahara
  • Publication number: 20060096794
    Abstract: A structure for mounting electronic apparatuses in an electric motor-driven vehicle can be provided, in which the electronic apparatuses such as a high voltage battery unit and motor control unit can be mounted compactly in the same section occupying a minimum mounting space, allowing them to be mounted in a vehicle of rather short wheelbase, driving efficiency of the electric motor can be improved by reducing the length of cables for transferring high voltage electric power, and space for mounting the refrigerating system can be increased which eases the mounting of the refrigerating system.
    Type: Application
    Filed: October 27, 2005
    Publication date: May 11, 2006
    Inventor: Kei Yoshida
  • Patent number: 6950156
    Abstract: A reflective color liquid crystal display device capable of increasing the luminance of display without decreasing color purity. The display device displays a color image formed based on unit pixels each of which has sub-pixels corresponding to primary colors by using extraneous light, which has a liquid crystal layer varying a state of light transmitted therethrough, a reflection layer reflecting light which is incident thereon, a transparent electrode layer and a pixel electrode layer for applying electric field to the liquid crystal layer for each of the sub-pixels in accordance with an image to be displayed, a color filter layer having portions that perform coloring of the primary colors for the light to be transmitted (or the light having transmitted) through the liquid crystal layer in correspondence with the sub-pixels.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: September 27, 2005
    Assignee: Koninklijke Philips Electronics, N.V.
    Inventor: Kei Yoshida
  • Publication number: 20050168668
    Abstract: A reflective color display device having a color filter (32) with portions (w) for filtering or transmitting light components of a predetermined wavelength to increase luminance.
    Type: Application
    Filed: March 28, 2005
    Publication date: August 4, 2005
    Inventor: Kei Yoshida
  • Patent number: 6235911
    Abstract: A 5-aminopyrazole-4-carboxylate derivative represented by the formula (1) is prepared by reacting a compound represented by the formula (2) with a hydrazine compound represented by the formula (3) or hydrate, hydrochloride, hydrobromide or sulfate of the same according to the reaction formula (C): wherein R1 is a straight or branched C1 to C4 alkyl group which can be substituted with a halogen atom, R2 is a hydrogen atom, straight or branched C1 to C4 alkyl group or an unsubstituted or substituted phenyl group, and R3 is a straight or branched C1 to C4 alkyl group, and M is an alkali metal. The 5-aminopyrazole-4-carboxylate derivative obtained by the preparation process of the invention is useful for an intermediate of agricultural chemicals and medicines, fungicides in particular.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: May 22, 2001
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kei Yoshida, Shingo Matsuo, Toshio Kitashima, Kanji Tomiya, Kenji Kodaka
  • Patent number: 5620930
    Abstract: In the manufacture of semiconductor integrated circuit devices, semiconductor regions such as, e.g., doped regions or tubs are separated by an etched trench which is self-aligned with respect to such regions on account of the presence of an etch-resistant layer overlying the regions during etching. In accordance with preferred processing of the invention a first layer is formed alongside the trench to be etched, a spacer second layer is formed alongside the edge of the first layer, and a third layer is formed abutting the spacer. The spacer is etched away while first and third layers remain in place, and the trench is etched in the space between the first and third layers. A preferred etchant comprises CF.sub.3 Br and oxygen.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: April 15, 1997
    Assignee: Lucent Technologies Inc.
    Inventors: Hans P. W. Hey, Kei Yoshida
  • Patent number: 4551946
    Abstract: A door swinging device for automatically swinging a door hinged to a door supporting frame so as to be angularly movable about a vertical axis. The door swinging device includes: (a) a mechanism for rotating; (b) an arm member adapted to be attached at one end thereof to the rotating mechanism so as to be rotated in a plane; (c) a slider rotatably connected to the other end of the arm member; and (d) a guiding mechanism, adapted to be attached to one of the door and the door supporting frame, for guiding slidably the slider in a direction parallel with the plane.
    Type: Grant
    Filed: January 16, 1984
    Date of Patent: November 12, 1985
    Assignee: Chikura Kogyo Kabushiki Kaisha
    Inventors: Kei Yoshida, Yoichiro Saotome
  • Patent number: 4501090
    Abstract: An automatic door operator for a swing door supported by a door supporting frame to swing about a vertical axis. The automatic door operator includes a mechanism for opening and closing the swing door, a drive for driving the door opening and closing mechanism to open the swing door, the drive including a prime mover for driving the door opening and closing mechanism, a door closer including a resilient device for storing part of mechanical energy provided by the drive in opening the swing door and for exerting driving force on the door opening and closing means by using the stored mechanical energy to close the door, a unit for electrically controlling the drive to swing the swing door, and a sensor for sensing a body accessing the door and thereby providing an electric signal to open the door to the controlling unit.
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: February 26, 1985
    Assignee: Chikura Kogyo Kabushiki Kaisha
    Inventors: Kei Yoshida, Masayuki Murokawa, Toshiaki Nomura
  • Patent number: 4238300
    Abstract: Electrolytic deposition of gold results in the formation of undesirable reducible gold III species in the electroplating bath which interfere with the current efficiency and make the prediction of gold thickness based on applied current impossible. Addition of a small quantity of hypophosphorous acid to the plating bath when the current efficiency has dropped below a certain minimum, chemically reduces accumulated gold III species and scavenges dissolved oxygen. Thus, the current efficiency is restored to about 100%. The hypophosphorous acid treatment is particularly advantageous in a phosphate buffered bath because no foreign ions are introduced into the solution.
    Type: Grant
    Filed: May 25, 1979
    Date of Patent: December 9, 1980
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventor: Kei Yoshida