Patents by Inventor Hirokazu Yamada

Hirokazu Yamada 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).

  • LIGHT SOURCE MODULE HAVING A PLURALITY OF LIGHT-EMITTING ELEMENTS AND ILLUMINATION APPARATUS
    Publication number: 20090303715
    Abstract: A light source module has a reflector having a light reflection face and a plurality of light emitting elements. The light reflection face is curved in a circular arc shape in a width direction of the reflector and extends in a longitudinal direction of the reflector. The light emitting elements are arranged in a center portion in the width direction of the light reflection face and are arranged linearly along the longitudinal direction of the reflector.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 10, 2009
    Applicants: TOSHIBA LIGHTING & TECHNOLOGY CORPORATION, KABUSHIKI KAISHA TOSHIBA
    Inventors: Masako Takasago, Masahiro Toda, Hirokazu Yamada, Kenji Nezu, Keisuke Ono
  • Organic electroluminescent device and display device
    Patent number: 7615290
    Abstract: An organic electroluminescent device comprising an organic layer at least having a light emission layer provided between an anode and a cathode, wherein the anode has at least one layer comprised of an alloy containing aluminum as a main ingredient, and the alloy contains at least one element whose work function is relatively smaller than that of the main ingredient as a secondary ingredient, the device being relatively inexpensive, having high reliability and capable of reducing disconnection due to hillock or migration.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: November 10, 2009
    Assignee: Sony Corporation
    Inventors: Eisuke Matsuda, Hirokazu Yamada
  • Organic light emitting device, manufacturing method thereof, and display unit
    Patent number: 7597602
    Abstract: The invention provides an organic light emitting device which can electrically connect an auxiliary wiring and a second electrode without using a mask for pixel coating, a manufacturing method thereof, and a display unit. In organic light emitting devices, for example, a first electrode as an anode, an insulating film, an organic layer including a light emitting layer, and a second electrode as a cathode are layered in this order from a substrate side. The organic layer has a break part on a side face of an auxiliary wiring. The auxiliary wiring and the second electrode are electrically connected through this break part.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: October 6, 2009
    Assignee: Sony Corporation
    Inventors: Hirokazu Yamada, Takashi Hirano, Kohji Hanawa
  • Compact structure of gas sensor and production method thereof
    Patent number: 7569792
    Abstract: An improved structure of a gas sensor is provided. The gas sensor includes a hollow housing in which a gas sensing element is disposed, a protective cover installed on an end of the housing, a metallic cover installed on the other end of the housing, and an insulator in which end portions of leads connecting with the gas sensing element are disposed. The insulator is retained at a flange thereof in the housing elastically using a washer. The protective cover is welded at an end thereof to the whole circumference of the end of the housing.
    Type: Grant
    Filed: January 4, 2005
    Date of Patent: August 4, 2009
    Assignee: Denso Corporation
    Inventors: Hirokazu Yamada, Takashi Kojima, Isao Watanabe
  • ORGANIC ELECTROLUMINESCENT DEVICE, FABRICATION PROCESS OF ORGANIC ELECTROLUMINESCENT DEVICE, DISPLAY DEVICE, AND FABRICATION PROCESS OF DISPLAY DEVICE
    Publication number: 20090066237
    Abstract: An organic electroluminescent device is provided with a substrate, and a lower electrode, a luminescence function layer including an organic light-emitting layer, and an upper electrode stacked in this order on the substrate to emit light, which has been generated in said organic light-emitting layer, out of said upper electrode. The lower electrode includes a reflective material layer comprised essentially of metal, an oxide film provided on a surface of said reflective material layer, and a thin metal film provided over the oxide film.
    Type: Application
    Filed: September 9, 2008
    Publication date: March 12, 2009
    Applicant: SONY CORPORATION
    Inventors: Emiko Kambe, Tadahiko Yoshinaga, Yasunori Kijima, Mitsuhiro Kashiwabara, Hirokazu Yamada
  • Gas sensor manufacturing method
    Patent number: 7490404
    Abstract: An improved manufacturing method for a gas sensor is provided which is capable of establishing a required hermetic seal in a body of the gas sensor. The method includes preparing a sensor assembly including a housing, an air cover, an insulation porcelain, and a sensor element, pressing the air cover against the housing to fit an end of the air cover on an end of the housing to form an overlap thereof, and welding the air cover to the housing over the overlap. The welding is accomplished while pressing the air cover against the housing, thereby compressing an elastic member in the air cover to establish a hermetic seal between the sensor element and the housing.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: February 17, 2009
    Assignee: Denso Corporation
    Inventors: Hirokazu Yamada, Masato Ozawa
  • Display device and method for manufacturing the same
    Patent number: 7455564
    Abstract: A method for manufacturing a display device with an organic light-emitting element includes the steps of providing a first electrode on a substrate, providing on the first electrode a mixture layer having two or more organic materials differing in glass transition point, heating the mixture layer at a temperature higher and lower than respectively the lowest and highest of the glass transition points of the organic materials, providing a light-emitting layer on the mixture layer, thereby providing a organic layer having at least the mixture layer and the light-emitting layer, and finally providing a second electrode on the organic layer.
    Type: Grant
    Filed: November 25, 2005
    Date of Patent: November 25, 2008
    Assignee: Sony Corporation
    Inventors: Toshiki Matsumoto, Hirokazu Yamada
  • Document data processing apparatus, document data processing system and recording medium
    Publication number: 20080212121
    Abstract: A document data processing apparatus comprising: an obtaining portion for obtaining transmitted document data; a giving portion for giving the obtained document data multiple pieces of recommended information to recommend an operation when outputting; and a transmitting portion for transmitting document data to a destination, the document data carrying multiple pieces of given recommended information.
    Type: Application
    Filed: May 25, 2007
    Publication date: September 4, 2008
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Takanobu Kuge, Kazuo Matoba, Hirokazu Yamada, Atsushi Ohshima
  • Image Data Management Apparatus, Image Forming Apparatus and Image Forming System
    Publication number: 20080165372
    Abstract: An image data management apparatus which provides a pull-print mark for a file which is expected to be printed at an externally connected image forming apparatus, that is, to be subjected to pull-printing. It is possible to provide the pull-print mark for a plural number of files. When a user commands pull-printing of such a file at an externally connected image forming apparatus, a search is made within the files provided with the pull-print mark. Thereby, the load on the image data management apparatus for searching the file is light. In order to permit a user to command pull-printing at a printer with a simple user interface, simple authentication codes may be used.
    Type: Application
    Filed: October 16, 2007
    Publication date: July 10, 2008
    Applicant: Konica Minolta Business Technologies, Inc.
    Inventors: Hirokazu Yamada, Yoshikazu Ikenoue
  • Electrophotographic toner, method for producing the same, electrophotographic developer, and image forming method
    Patent number: 7291436
    Abstract: An electrophotographic toner having a core-shell structure including a crystalline resin in its core region or a sea-island structure including a crystalline resin in its island region, wherein the toner has 1) a resistance of 5.0×1012 ?·cm or higher, 2) a dynamic viscosity coefficient of 3×103 Pa·s or higher at a temperature which is 50° C. higher than a melting point of the crystalline resin, and 3) a dynamic viscosity coefficient of 1×105 Pa·s or lower at a temperature which is 10° C. higher than the melting point of the crystalline resin.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: November 6, 2007
    Assignee: Fuji Xerox., Ltd.
    Inventors: Masaki Nakamura, Takashi Imai, Katsumi Daimon, Yuka Ishihara, Hirokazu Yamada, Hirokazu Hamano, Norihito Fukushima, Yasuhiro Arima
  • Gas sensor manufacturing method
    Publication number: 20070113393
    Abstract: An improved manufacturing method for a gas sensor is provided which is capable of establishing a required hermetic seal in a body of the gas sensor. The method includes preparing a sensor assembly including a housing, an air cover, an insulation porcelain, and a sensor element, pressing the air cover against the housing to fit an end of the air cover on an end of the housing to form an overlap thereof, and welding the air cover to the housing over the overlap. The welding is accomplished while pressing the air cover against the housing, thereby compressing an elastic member in the air cover to establish a hermetic seal between the sensor element and the housing.
    Type: Application
    Filed: January 18, 2007
    Publication date: May 24, 2007
    Applicant: DENSO CORPORATION
    Inventors: Hirokazu Yamada, Masato Ozawa
  • ORGANIC LIGHT EMITTING DEVICE, MANUFACTURING METHOD THEREOF, AND DISPLAY UNIT
    Publication number: 20070066178
    Abstract: The invention provides an organic light emitting device which can electrically connect an auxiliary wiring and a second electrode without using a mask for pixel coating, a manufacturing method thereof, and a display unit. In organic light emitting devices, for example, a first electrode as an anode, an insulating film, an organic layer including a light emitting layer, and a second electrode as a cathode are layered in this order from a substrate side. The organic layer has a break part on a side face of an auxiliary wiring. The auxiliary wiring and the second electrode are electrically connected through this break part.
    Type: Application
    Filed: October 19, 2006
    Publication date: March 22, 2007
    Inventors: Hirokazu Yamada, Takashi Hirano, Kohji Hanawa
  • Method of manufacturing a gas sensor
    Patent number: 7181840
    Abstract: An improved manufacturing method for a gas sensor is provided which is capable of establishing a required hermetic seal in a body of the gas sensor. The method includes preparing a sensor assembly including a housing, an air cover, an insulation porcelain, and a sensor element, pressing the air cover against the housing to fit an end of the air cover on an end of the housing to form an overlap thereof, and welding the air cover to the housing over the overlap. The welding is accomplished while pressing the air cover against the housing, thereby compressing an elastic member in the air cover to establish a hermetic seal between the sensor element and the housing.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: February 27, 2007
    Assignee: Denso Corporation
    Inventors: Hirokazu Yamada, Masato Ozawa
  • Organic light emitting device, manufacturing method thereof, and display unit
    Patent number: 7173373
    Abstract: The invention provides an organic light emitting device which can electrically connect an auxiliary wiring and a second electrode without using a mask for pixel coating, a manufacturing method thereof, and a display unit. In organic light emitting devices, for example, a first electrode as an anode, an insulating film, an organic layer including a light emitting layer, and a second electrode as a cathode are layered in this order from a substrate side. The organic layer has a break part on a side face of an auxiliary wiring. The auxiliary wiring and the second electrode are electrically connected through this break part.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: February 6, 2007
    Assignee: Sony Corporation
    Inventors: Hirokazu Yamada, Takashi Hirano, Kohji Hanawa
  • Image forming apparatus and function adding method of image forming apparatus
    Publication number: 20070008573
    Abstract: An image forming apparatus is an image forming apparatus to which a function can be added by downloading and installing software for adding the function. The image forming apparatus includes: an information acquiring unit which acquires function information regarding the function which can be added to the image forming apparatus; an operation panel which displays a key in a selectable state, the key being to be displayed when the function is added; and a function managing unit which downloads and installs the software for adding the function corresponding to the key to add the function when the key is selected.
    Type: Application
    Filed: December 6, 2005
    Publication date: January 11, 2007
    Applicant: Konica Minolta Business Technologies, Inc.
    Inventor: Hirokazu Yamada
  • Image processing apparatus operating as based on history of utilized function and method of controlling the same
    Publication number: 20060282782
    Abstract: An image processing apparatus is connected on a network to another image processing apparatus and has an operation portion displayed at a display portion for implementing a function setting of a combination corresponding to a condition when a history of a function utilized in the other image processing apparatus by a user authenticated by a user authentication portion satisfies that condition.
    Type: Application
    Filed: September 13, 2005
    Publication date: December 14, 2006
    Applicant: Konica Minolta Business Technologies, Inc.
    Inventor: Hirokazu Yamada
  • Gas sensor
    Patent number: 7066009
    Abstract: In a gas sensor internally including a sensing element for measuring a specific gas concentration of a measured gas, an outer surface thereof has a measured gas surface exposed to a measured gas and an atmosphere surface exposed to the atmosphere, and at least a portion of the atmosphere surface has an emissivity equal to or lower than 0.3. Preferably, this emissivity is a value with respect to an electromagnetic wave having a wavelength of 0.5 to 1 ?m, and the a region of the atmosphere surface, contributing 60% or more of the atmosphere surface, has an emissivity equal to or lower than 0.3. This provides a gas sensor less susceptible to radiant heat and less temperature-increasable.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: June 27, 2006
    Assignee: Denso Corporation
    Inventor: Hirokazu Yamada
  • Display device and method for manufacturing the same
    Publication number: 20060113899
    Abstract: A method for manufacturing a display device with an organic light-emitting element includes the steps of providing a first electrode on a substrate, providing on the first electrode a mixture layer having two or more organic materials differing in glass transition point, heating the mixture layer at a temperature higher and lower than respectively the lowest and highest of the glass transition points of the organic materials, providing a light-emitting layer on the mixture layer, thereby providing a organic layer having at least the mixture layer and the light-emitting layer, and finally providing a second electrode on the organic layer.
    Type: Application
    Filed: November 25, 2005
    Publication date: June 1, 2006
    Inventors: Toshiki Matsumoto, Hirokazu Yamada
  • Organic electroluminescent device and display device
    Publication number: 20060049747
    Abstract: An organic electroluminescent device comprising an organic layer at least having a light emission layer provided between an anode and a cathode, wherein the anode has at least one layer comprised of an alloy containing aluminum as a main ingredient, and the alloy contains at least one element whose work function is relatively smaller than that of the main ingredient as a secondary ingredient, the device being relatively inexpensive, having high reliability and capable of reducing disconnection due to hillock or migration.
    Type: Application
    Filed: August 30, 2005
    Publication date: March 9, 2006
    Inventors: Eisuke Matsuda, Hirokazu Yamada
  • Electrophotographic toner, method for producing the same, electrophotographic developer, and image forming method
    Publication number: 20050208414
    Abstract: An electrophotographic toner having a core-shell structure including a crystalline resin in its core region or a sea-island structure including a crystalline resin in its island region, wherein the toner has 1) a resistance of 5.0×1012 ?·cm or higher, 2) a dynamic viscosity coefficient of 3×103 Pa·s or higher at a temperature which is 50° C. higher than a melting point of the crystalline resin, and 3) a dynamic viscosity coefficient of 1×105 Pa·s or lower at a temperature which is 10° C. higher than the melting point of the crystalline resin.
    Type: Application
    Filed: October 14, 2004
    Publication date: September 22, 2005
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Masaki Nakamura, Takashi Imai, Katsumi Daimon, Yuka Ishihara, Hirokazu Yamada, Hirokazu Hamano, Norihito Fukushima, Yasuhiro Arima