Patents by Inventor Hiroshi Kuwahara

Hiroshi Kuwahara 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: 10291728
    Abstract: A location information display system includes a portable communication terminal receiving location information of respective users belonging to a predetermined group from a server, and a vehicular communication device receiving the location information from the portable communication terminal and displaying icons indicating present locations of the respective users identified based on the received location information by superimposing the icons on a map screen. The vehicular communication device notifies the portable communication terminal of a selection condition. The portable communication terminal acquires the selection condition from the vehicular communication device, selects one or more users who satisfy the acquired selection condition, and transmits the location information of the selected users to the vehicular communication device.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: May 14, 2019
    Assignee: DENSO CORPORATION
    Inventors: Hiroshi Kuwahara, Hiroki Ukai
  • Publication number: 20180309838
    Abstract: A location information display system includes a portable communication terminal receiving location information of respective users belonging to a predetermined group from a server, and a vehicular communication device receiving the location information from the portable communication terminal and displaying icons indicating present locations of the respective users identified based on the received location information by superimposing the icons on a map screen. The vehicular communication device notifies the portable communication terminal of a selection condition. The portable communication terminal acquires the selection condition from the vehicular communication device, selects one or more users who satisfy the acquired selection condition, and transmits the location information of the selected users to the vehicular communication device.
    Type: Application
    Filed: September 12, 2016
    Publication date: October 25, 2018
    Inventors: Hiroshi KUWAHARA, Hiroki UKAI
  • Patent number: 10037450
    Abstract: An information code image display system includes an area specifying part, an image generation part, and a display controller. The area specifying part specifies an area as a conversion target area, the area being a part of a base image displayed in a display area of a display part. The image generation part generates a base-image-attached information code image by applying an information code to a conversion target image corresponding to the conversion target area. The display controller displays in the display part the base-image-attached information code image and a remaining image obtained by excluding an image of the conversion target area from the base image.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: July 31, 2018
    Assignee: DENSO CORPORATION
    Inventors: Hiroki Ukai, Masatoshi Aboh, Hiroshi Kuwahara, Yousuke Kimura
  • Publication number: 20180053020
    Abstract: An information code image display system includes an area specifying part, an image generation part, and a display controller. The area specifying part specifies an area as a conversion target area, the area being a part of a base image displayed in a display area of a display part. The image generation part generates a base-image-attached information code image by applying an information code to a conversion target image corresponding to the conversion target area. The display controller displays in the display part the base-image-attached information code image and a remaining image obtained by excluding an image of the conversion target area from the base image.
    Type: Application
    Filed: March 4, 2016
    Publication date: February 22, 2018
    Inventors: Hiroki UKAI, Masatoshi ABOH, Hiroshi KUWAHARA, Yousuke KIMURA
  • Patent number: 9313716
    Abstract: A mobile terminal requiring operation regulation is communicably connected with a vehicular apparatus via wireless communication and executes an application for cooperating with the vehicular apparatus. An operation regulation method performed by the mobile terminal and the vehicular apparatus includes transmitting, from the vehicular apparatus to the mobile terminal, vehicle information indicating whether a vehicle including the vehicular apparatus is in a traveling state, determining, with the mobile terminal, whether the vehicle is in the traveling state based on the vehicle information when the vehicular apparatus is connected with the mobile terminal based on handsfree communication protocol, and, when the mobile terminal determines that the vehicle is in the traveling state, performing, with the mobile terminal, a regulation process for regulating one of (i) an operation of the application for cooperating with the vehicular apparatus or (ii) all or part of functions provided to the mobile terminal.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: April 12, 2016
    Assignee: DENSO CORPORATION
    Inventors: Hiroki Ukai, Hiroshi Kuwahara
  • Patent number: 9244328
    Abstract: An optical modulator includes: a modulator including an optical waveguide provided in a semiconductor substrate having an electro-optical effect and an electrode to apply an electric field depending on a bias voltage and a modulation signal to the optical waveguide; a driver circuit to generate a modulation signal in accordance with an input signal; a superimposer to superimpose a reference signal on the bias voltage, the reference signal having lower frequency than the modulation signal; and a controller to control a bias voltage in a direction orthogonal to a modulation direction of the modulator based on the frequency component of the reference signal extracted from a modulated optical signal generated by the modulator.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: January 26, 2016
    Assignee: FUJITSU OPTICAL COMPONENTS LIMITED
    Inventors: Hiroshi Nishimoto, Hiroshi Kuwahara
  • Patent number: 9069224
    Abstract: An optical modulator includes: a modulator including an optical waveguide provided in a semiconductor substrate having an electro-optical effect and an electrode to apply an electric field depending on a bias voltage and a modulation signal to the optical waveguide; a driver circuit to generate a modulation signal in accordance with an input signal; a superimposer to superimpose a reference signal on the bias voltage, the reference signal having lower frequency than the modulation signal; and a controller to control a bias voltage in a direction orthogonal to a modulation direction of the modulator based on the frequency component of the reference signal extracted from a modulated optical signal generated by the modulator.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: June 30, 2015
    Assignee: FUJITSU OPTICAL COMPONENTS LIMITED
    Inventors: Hiroshi Nishimoto, Hiroshi Kuwahara
  • Publication number: 20150071582
    Abstract: An optical modulator includes: a modulator including an optical waveguide provided in a semiconductor substrate having an electro-optical effect and an electrode to apply an electric field depending on a bias voltage and a modulation signal to the optical waveguide; a driver circuit to generate a modulation signal in accordance with an input signal; a superimposer to superimpose a reference signal on the bias voltage, the reference signal having lower frequency than the modulation signal; and a controller to control a bias voltage in a direction orthogonal to a modulation direction of the modulator based on the frequency component of the reference signal extracted from a modulated optical signal generated by the modulator.
    Type: Application
    Filed: November 14, 2014
    Publication date: March 12, 2015
    Applicant: Fujitsu Optical Components Limited
    Inventors: Hiroshi NISHIMOTO, Hiroshi Kuwahara
  • Publication number: 20150071583
    Abstract: An optical modulator includes: a modulator including an optical waveguide provided in a semiconductor substrate having an electro-optical effect and an electrode to apply an electric field depending on a bias voltage and a modulation signal to the optical waveguide; a driver circuit to generate a modulation signal in accordance with an input signal; a superimposer to superimpose a reference signal on the bias voltage, the reference signal having lower frequency than the modulation signal; and a controller to control a bias voltage in a direction orthogonal to a modulation direction of the modulator based on the frequency component of the reference signal extracted from a modulated optical signal generated by the modulator.
    Type: Application
    Filed: November 14, 2014
    Publication date: March 12, 2015
    Inventors: Hiroshi NISHIMOTO, Hiroshi KUWAHARA
  • Publication number: 20150056976
    Abstract: A mobile terminal requiring operation regulation is communicably connected with a vehicular apparatus via wireless communication and executes an application for cooperating with the vehicular apparatus. An operation regulation method performed by the mobile terminal and the vehicular apparatus includes transmitting, from the vehicular apparatus to the mobile terminal, vehicle information indicating whether a vehicle including the vehicular apparatus is in a traveling state, determining, with the mobile terminal, whether the vehicle is in the traveling state based on the vehicle information when the vehicular apparatus is connected with the mobile terminal based on handsfree communication protocol, and, when the mobile terminal determines that the vehicle is in the traveling state, performing, with the mobile terminal, a regulation process for regulating one of (i) an operation of the application for cooperating with the vehicular apparatus or (ii) all or part of functions provided to the mobile terminal.
    Type: Application
    Filed: April 17, 2013
    Publication date: February 26, 2015
    Inventors: Hiroki Ukai, Hiroshi Kuwahara
  • Patent number: 8903239
    Abstract: An optical modulator includes: a modulator including an optical waveguide provided in a semiconductor substrate having an electro-optical effect and an electrode to apply an electric field depending on a bias voltage and a modulation signal to the optical waveguide; a driver circuit to generate a modulation signal in accordance with an input signal; a superimposer to superimpose a reference signal on the bias voltage, the reference signal having lower frequency than the modulation signal; and a controller to control a bias voltage in a direction orthogonal to a modulation direction of the modulator based on the frequency component of the reference signal extracted from a modulated optical signal generated by the modulator.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: December 2, 2014
    Assignee: Fujistu Optical Component Limited
    Inventors: Hiroshi Nishimoto, Hiroshi Kuwahara
  • Patent number: 8761548
    Abstract: An optical modulator includes: a modulator including an optical waveguide provided in a semiconductor substrate having an electro-optical effect and an electrode for applying an electric field depending on a bias voltage and a modulation signal to the optical waveguide; a modulation signal generator to generate the modulation signal of a first frequency; a superimposer to superimpose a signal of a second frequency different from the first frequency on the bias voltage; and a bias controller to control the bias voltage in a modulation direction of the modulator and the bias voltage in an orthogonal direction which is orthogonal to the modulation direction based on a phase of the second frequency component extracted from a modulated optical signal generated by the modulator.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: June 24, 2014
    Assignee: Fujitsu Optical Components Limited
    Inventor: Hiroshi Kuwahara
  • Patent number: 8557327
    Abstract: The invention is to provide a gas diffusion layer for fuel cells having excellent adaptability against load change by attaining a good balance between anti-dry-out properties and anti-flooding properties. The gas diffusion layer for fuel cells containing a substrate layer and an conductive fine particle layer is formed by coating a coating liquid for forming the conductive fine particle layer on at least one surface of a substrate for forming the substrate layer using a gravure roll and by a kiss coating. In coating of the coating liquid, a speed difference is generated between a line speed of transferring the substrate and a circumferential speed of the gravure roll, and apparent viscosity [?(Pa·s)] of the coating liquid as determined by type B viscosimeter satisfies the following relations: 1.0<?<200.0 (3 rpm) 0.2<?<10.0 (30 rpm).
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: October 15, 2013
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takuya Hasegawa, Norihisa Waki, Hiroshi Kuwahara
  • Patent number: 8224879
    Abstract: In a management system for a storage system including plural file sharing environments, a maintenance interval calculating part calculates a time interval average for operation commands given to the file sharing environments; a management difficulty calculating part calculates an index showing difficulty of managing the file sharing environment; a usage degree calculating part calculates an index showing a usage degree of each of the file sharing environments; a processing content keeping part keeps numerical ranges for the average maintenance interval, the management difficulty, and the file sharing environment usage degree in association with processing contents for the maintenance interval calculating part, the management difficulty calculating part, and the usage degree calculating part; a storing area stores each of the file sharing environments and the processing contents in association with each other; and a processing content executing part executes the processing contents for each of the file sharing
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: July 17, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Kuwahara, Nobuyuki Saika
  • Publication number: 20120155880
    Abstract: An optical modulator includes: a modulator including an optical waveguide provided in a semiconductor substrate having an electro-optical effect and an electrode to apply an electric field depending on a bias voltage and a modulation signal to the optical waveguide; a driver circuit to generate a modulation signal in accordance with an input signal; a superimposer to superimpose a reference signal on the bias voltage, the reference signal having lower frequency than the modulation signal; and a controller to control a bias voltage in a direction orthogonal to a modulation direction of the modulator based on the frequency component of the reference signal extracted from a modulated optical signal generated by the modulator.
    Type: Application
    Filed: December 12, 2011
    Publication date: June 21, 2012
    Applicant: Fujitsu Optical Components Limited
    Inventors: Hiroshi Nishimoto, Hiroshi Kuwahara
  • Publication number: 20120148732
    Abstract: The invention is to provide a gas diffusion layer for fuel cells having excellent adaptability against load change by attaining a good balance between anti-dry-out properties and anti-flooding properties. The gas diffusion layer for fuel cells containing a substrate layer and an conductive fine particle layer is formed by coating a coating liquid for forming the conductive fine particle layer on at least one surface of a substrate for forming the substrate layer using a gravure roll and by a kiss coating. In coating of the coating liquid, a speed difference is generated between a line speed of transferring the substrate and a circumferential speed of the gravure roll, and apparent viscosity [?(Pa·s)] of the coating liquid as determined by type B viscosimeter satisfies the following relations: 1.0<?<200.0 (3 rpm) 0.2<?<10.
    Type: Application
    Filed: September 3, 2010
    Publication date: June 14, 2012
    Inventors: Takuya Hasegawa, Norihisa Waki, Hiroshi Kuwahara
  • Publication number: 20120128289
    Abstract: An optical modulator includes: a modulator including an optical waveguide provided in a semiconductor substrate having an electro-optical effect and an electrode for applying an electric field depending on a bias voltage and a modulation signal to the optical waveguide; a modulation signal generator to generate the modulation signal of a first frequency; a superimposer to superimpose a signal of a second frequency different from the first frequency on the bias voltage; and a bias controller to control the bias voltage in a modulation direction of the modulator and the bias voltage in an orthogonal direction which is orthogonal to the modulation direction based on a phase of the second frequency component extracted from a modulated optical signal generated by the modulator.
    Type: Application
    Filed: August 23, 2011
    Publication date: May 24, 2012
    Applicant: FUJITSU OPTICAL COMPONENTS LIMITED
    Inventor: Hiroshi KUWAHARA
  • Publication number: 20110264716
    Abstract: A management system for a storage system including a storage control device that provides a plurality of file sharing environments, includes: an average maintenance interval calculating part to calculate an average maintenance interval that is an average value of time intervals at which an operation command is given to each of the file sharing environments; a management difficulty calculating part, for each of the file sharing environments, to calculate a management difficulty that is an index quantitatively showing a difficulty to manage the file sharing environment and is determined based on a type and a quantity of resources included in the file sharing environment; a file sharing environment usage degree calculating part to calculate a file sharing environment usage degree that is an index showing a degree of usage of each of the file sharing environments and is determined based on an access frequency that is an index showing a frequency at which the users access the file sharing environment and the numbe
    Type: Application
    Filed: February 23, 2010
    Publication date: October 27, 2011
    Applicant: HITACHI, LTD.
    Inventors: Hiroshi Kuwahara, Nobuyuki Saika
  • Patent number: 7509466
    Abstract: Provided is a technology in which: a request-source storage device provides a request-source server device with a storage area of a disk drive as at least one logical volume; the request-source server device determines, upon receiving a request to back up data stored in a first logical volume, whether a second logical volume which constitutes a copy pair with the first logical volume is present in the request-source storage device; the request-source server device requests, upon determining that the second logical volume is not present, the request-source storage device to produce the second logical volume; and the request-source server device transmits a request to execute a process to back up data stored in the existing or produced second logical volume to the backup storage device to the request-destination server device. Accordingly, data to be stored in a NAS not locally coupled to a backup device is appropriately backed up.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: March 24, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Kuwahara, Nobuyuki Saika
  • Patent number: 7384258
    Abstract: There is disclosed a die 1 for forming a honeycomb structure comprises: a plate-like die substrate 2 having at least two surfaces 8, 9, in which back holes 3 for introducing a green material are formed in one surface 8, and slits 4 communicating with back holes 3 are formed in the other surface 9; an underlayer 5 disposed on the substrate 2 so as to coat at least a part of a portion constituting the back hole 3 and the slit 4; an intermediate layer 6 disposed so as to coat at least a part of the underlayer 5 and constituted of tungsten carbide particles whose average particle diameter is 5 ?m or less and containing W3C as a main component; and a surface layer 7 disposed so as to coat at least a part of the intermediate layer 6 and constituted of diamond and/or diamond-like carbon.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: June 10, 2008
    Assignee: NGK Insulators, Ltd.
    Inventors: Hiroshi Kuwahara, Susumu Matsuoka, Takao Saito