Patents by Inventor Jun Mizuno

Jun Mizuno 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: 9698440
    Abstract: A fuel cell module includes a fuel cell stack, a reformer, and a hydrodesulfurizer. A fuel gas is supplied to the fuel cell stack through a fuel gas supply channel, and the reformer and the hydrodesulfurizer are provided for the fuel gas supply channel. A fuel exhaust gas is discharged from the fuel cell stack into a fuel exhaust gas channel, and a recycling channel is connected to the fuel exhaust gas channel, for circulating some of the fuel exhaust gas to return to a position of the fuel gas supply channel, the position provided upstream of the reformer and the hydrodesulfurizer.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: July 4, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Keiji Tsukamoto, Ayaka Nango, Jun Mizuno
  • Publication number: 20170170727
    Abstract: A lighting device includes a DC/DC converter, a drive circuit, and a delay circuit. The drive circuit generates a feedback signal and a PWM signal. The feedback signal indicates whether or not a voltage required for a constant current to flow in a solid-state light emitting device is applied to the solid-state light emitting device. The PWM signal indicates a current supply period during which a current flows in the solid-state light emitting device. The delay circuit delays at least one of a start timing and an end timing of the current supply period with respect to the PWM signal. The DC/DC converter includes: a switching element, and a control circuit which performs control such that the switching element switches in accordance with the feedback signal generated by the drive circuit, during an on-duty period determined by the PWM signal the timing of which has been delayed by the delay circuit.
    Type: Application
    Filed: September 25, 2015
    Publication date: June 15, 2017
    Inventor: JUN MIZUNO
  • Publication number: 20160151915
    Abstract: A cooperation system of a robot and a machine tool, capable of obtaining a coordinate transformation means with high accuracy by a simple configuration, by which a robot coordinate system is transformed to a machine coordinate system. A provisional coordinate system is defined by coordinate values of three calibration markers in a base coordinate system obtained by translating the machine coordinate system, and a coordinate transformation matrix from the provisional coordinate system to the base coordinate system is calculated. The positions of the markers in the robot coordinate system are obtained by capturing the markers by a camera. Based on the three coordinate values in the robot coordinate system, a coordinate transformation matrix from the robot coordinate system to the provisional coordinate system is calculated, and a coordinate transformation matrix from the robot coordinate system to the base coordinate system is calculated based on the above two matrixes.
    Type: Application
    Filed: November 25, 2015
    Publication date: June 2, 2016
    Applicant: FANUC CORPORATION
    Inventors: Hiroji Nishi, Jun Mizuno, Masahiro Oyamada
  • Publication number: 20160064761
    Abstract: A fuel cell module includes a fuel cell stack, a reformer, and a hydrodesulfurizer. A fuel gas is supplied to the fuel cell stack through a fuel gas supply channel, and the reformer and the hydrodesulfurizer are provided for the fuel gas supply channel. A fuel exhaust gas is discharged from the fuel cell stack into a fuel exhaust gas channel, and a recycling channel is connected to the fuel exhaust gas channel, for circulating some of the fuel exhaust gas to return to a position of the fuel gas supply channel, the position provided upstream of the reformer and the hydrodesulfurizer.
    Type: Application
    Filed: August 27, 2015
    Publication date: March 3, 2016
    Inventors: Keiji Tsukamoto, Ayaka Nango, Jun Mizuno
  • Publication number: 20150222514
    Abstract: It is provided an identification apparatus is configured to: obtain, from a first request group, same-type requests which are of the same type as an investigation subject request in a first request group; obtain, other-type requests that have been transmitted from a first apparatus to a second apparatus and a response to which has been transmitted from the second apparatus to the first apparatus, during a processing period; generate, for the investigation subject request and each of the same-type requests; search the generated sets for sets that have the matching other-type requests, and remove one of the found sets; obtain second requests that have been processed by the second apparatus during the processing period from the second request group; calculate, for the investigation subject request and each of the same-type requests after the removal, values of correlation with the obtained second requests.
    Type: Application
    Filed: April 26, 2013
    Publication date: August 6, 2015
    Applicant: HITACHI, LTD.
    Inventors: Mineyoshi Masuda, Kiyomi Wada, Jun Mizuno
  • Patent number: 9000686
    Abstract: It is provided an LED lighting device calibratable to 0 to 100% of wide range about a chromaticity and luminance of a illumination light by a simple configuration, and a driving method for the LED lighting device. The LED lighting device is provided with a first light-emitting unit and a second light-emitting unit differing a color temperature mutually, and a control circuit for executing a cyclic light/quench control of the first light-emitting unit and the second light-emitting unit, and for executing a light control of the first light-emitting unit and the second light-emitting unit by a PNM (Pulse Number Modulation) control in a fixed cycle so as to have a lighting period Ton for lighting/quenching the first light-emitting unit and the second light-emitting unit complementarily, and a quenching period Toff for quenching both the first light-emitting unit and the second light-emitting unit.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: April 7, 2015
    Assignee: Rohm Co., Ltd.
    Inventor: Jun Mizuno
  • Publication number: 20140353697
    Abstract: An LED module A1 includes LED chips 3R, 3G, 3B, and a module substrate 1 on which the LED chips 3R, 3G, 3B are mounted. A wire 4R is connected to the LED chip 3R, and the LED chips 3G and 3B are arranged to face each other across the wire 4R. With this arrangement, the LED module A1 is reduced in size, and red light, green light and blue light are properly mixed.
    Type: Application
    Filed: August 18, 2014
    Publication date: December 4, 2014
    Inventors: Taisuke OKADA, Jun MIZUNO
  • Patent number: 8835946
    Abstract: An LED module A1 includes LED chips 3R, 3G, 3B, and a module substrate 1 on which the LED chips 3R, 3G, 3B are mounted. A wire 4R is connected to the LED chip 3R, and the LED chips 3G and 3B are arranged to face each other across the wire 4R. With this arrangement, the LED module A1 is reduced in size, and red light, green light and blue light are properly mixed.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: September 16, 2014
    Assignee: Rohm Co., Ltd.
    Inventors: Taisuke Okada, Jun Mizuno
  • Publication number: 20140175999
    Abstract: It is provided an LED lighting device calibratable to 0 to 100% of wide range about a chromaticity and luminance of a illumination light by a simple configuration, and a driving method for the LED lighting device. The LED lighting device is provided with a first light-emitting unit and a second light-emitting unit differing a color temperature mutually, and a control circuit for executing a cyclic light/quench control of the first light-emitting unit and the second light-emitting unit, and for executing a light control of the first light-emitting unit and the second light-emitting unit by a PNM (Pulse Number Modulation) control in a fixed cycle so as to have a lighting period Ton for lighting/quenching the first light-emitting unit and the second light-emitting unit complementarily, and a quenching period Toff for quenching both the first light-emitting unit and the second light-emitting unit.
    Type: Application
    Filed: February 26, 2014
    Publication date: June 26, 2014
    Applicant: ROHM CO., LTD.
    Inventor: Jun MIZUNO
  • Patent number: 8698425
    Abstract: It is provided an LED lighting device calibratable to 0 to 100% of wide range about a chromaticity and luminance of a illumination light by a simple configuration, and a driving method for the LED lighting device. The LED lighting device is provided with a first light-emitting unit and a second light-emitting unit differing a color temperature mutually, and a control circuit for executing a cyclic light/quench control of the first light-emitting unit and the second light-emitting unit, and for executing a light control of the first light-emitting unit and the second light-emitting unit by a PNM (Pulse Number Modulation) control in a fixed cycle so as to have a lighting period Ton for lighting/quenching the first light-emitting unit and the second light-emitting unit complementarily, and a quenching period Toff for quenching both the first light-emitting unit and the second light-emitting unit.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: April 15, 2014
    Assignee: Rohm Co., Ltd.
    Inventor: Jun Mizuno
  • Publication number: 20130234175
    Abstract: An LED module A1 includes LED chips 3R, 3G, 3B, and a module substrate 1 on which the LED chips 3R, 3G, 3B are mounted. A wire 4R is connected to the LED chip 3R, and the LED chips 3G and 3B are arranged to face each other across the wire 4R. With this arrangement, the LED module A1 is reduced in size, and red light, green light and blue light are properly mixed.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 12, 2013
    Applicant: ROHM CO., LTD.
    Inventors: Taisuke OKADA, Jun MIZUNO
  • Patent number: 8473108
    Abstract: An air conditioner that cools inside a room wherein a plurality of server apparatuses is arranged, is driven with high efficiency.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: June 25, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Jun Mizuno, Kiyokazu Saigo, Tadakatsu Nakajima, Jun Okitsu
  • Patent number: 8421093
    Abstract: An LED module A1 includes LED chips 3R, 3G, 3B, and a module substrate 1 on which the LED chips 3R, 3G, 3B are mounted. A wire 4R is connected to the LED chip 3R, and the LED chips 3G and 3B are arranged to face each other across the wire 4R. With this arrangement, the LED module A1 is reduced in size, and red light, green light and blue light are properly mixed.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: April 16, 2013
    Assignee: Rohm Co., Ltd.
    Inventors: Taisuke Okada, Jun Mizuno
  • Patent number: 8410727
    Abstract: It is provided an LED lighting device calibratable to 0 to 100% of wide range about a chromaticity and luminance of a illumination light by a simple configuration, and a driving method for the LED lighting device. The LED lighting device is provided with a first light-emitting unit and a second light-emitting unit differing a color temperature mutually, and a control circuit for executing a cyclic light/quench control of the first light-emitting unit and the second light-emitting unit, and for executing a light control of the first light-emitting unit and the second light-emitting unit by a PNM (Pulse Number Modulation) control in a fixed cycle so as to have a lighting period Ton for lighting/quenching the first light-emitting unit and the second light-emitting unit complementarily, and a quenching period Toff for quenching both the first light-emitting unit and the second light-emitting unit.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: April 2, 2013
    Assignee: Rohm Co., Ltd.
    Inventor: Jun Mizuno
  • Patent number: 8271991
    Abstract: A method of balancing a load in a computer system having at least one storage system, and a management computer, each of the storage systems having physical disks and a disk controller, the load balancing method including the steps of: setting at least one of the physical disks as a parity group; providing a storage area of the set parity group as at least one logical volumes to the host computer; calculating a logical volume migration time when a utilization ratio of the parity group becomes equal to or larger than a threshold; and choosing, as a data migration source volume, one of the logical volumes included in the parity group that has the utilization ratio equal to or larger than the threshold, by referring to the calculated logical volume migration time, the data migration source volume being the logical volume from which data migrates.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: September 18, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Toru Tanaka, Yuichi Taguchi, Jun Mizuno
  • Publication number: 20120116595
    Abstract: An air conditioner that cools inside a room wherein a plurality of server apparatuses is arranged, is driven with high efficiency.
    Type: Application
    Filed: November 9, 2010
    Publication date: May 10, 2012
    Applicant: HITACHI, LTD.
    Inventors: Jun Mizuno, Kiyokazu Saigo, Tadakatsu Nakajima, Jun Okitsu
  • Patent number: 8151079
    Abstract: Disclosed is a system and method for preventing deterioration in I/O performance of a computer resulted from a use of the same physical disk among different logical volumes. A volume management server 1010 groups together logical volumes which use the same physical disk of a storage device 1020 as a volume group and allocates a storage area on the physical disk to be used on a priority basis by this volume group to the volume group, and thereby a physical arrangement according to a present physical arrangement of the logical volume can be performed when an automatic expansion of the logical volume is performed thereafter so that the I/O performance deterioration of the computer caused by a mutual interference is avoided at the time of access from the computer 1030 to the storage device 1020.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: April 3, 2012
    Assignee: Hitatchi, Ltd.
    Inventors: Jun Mizuno, Takeshi Ishizaki
  • Publication number: 20120063935
    Abstract: An inverter-integrated electric compressor configured in such a manner that a motor is incorporated within a compressor, a control circuit board is provided to an inverter section which is provided with a motor drive circuit for driving the motor, and electric component parts including the control circuit board is fixed within a containment space surrounded by a compressor housing, wherein the control circuit board is fixed within the housing space through a board-fixing section, and a board vibration-isolating member, said board vibration-isolating member consisting of an electrically insulative elastic material, is provided between the control circuit board and the board-fixing section. A frame member having a convcave holding section may be loaded on the control circuit board, and a board vibration-isolating member, said board vibration-isolating member consisting of an electrically insulative elastic material, may be provided between the control circuit board and the frame member.
    Type: Application
    Filed: May 12, 2010
    Publication date: March 15, 2012
    Inventors: Eisuke Fujimura, Masanori Taguchi, Kazumi Osato, Jun Mizuno, Makoto Shibuya
  • Patent number: 8132025
    Abstract: Creating a plaintext index from a text that is extracted from a file presents the risk of a leak of confidential information from the created index. To address this problem, provided is a computer system which has a computer, a storage subsystem coupled to the computer, and a network coupling the computer and the storage subsystem. The computer has an interface coupled to the network, a first processor coupled to the interface, and a memory coupled to the first processor. The storage subsystem has a disk device which stores data. A storage area of the disk device is divided into a plurality of storage areas including, at least, a first storage area and a second storage area. The first processor reads a part of data stored in the first storage area, encrypts the part of data read from the first storage area when the data stored in the first storage area is judged as encrypted data, and writes the encrypted part of data in the second storage area.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: March 6, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Toru Tanaka, Yuichi Taguchi, Masayuki Yamamoto, Jun Mizuno
  • Patent number: 8124048
    Abstract: Provided is a process for producing a high-purity ?-alumina in which an Si content, an Fe content, a Ca content, and an Na content are simultaneously removed. The high-purity ?-alumina is produced by burning aluminum hydroxide having an Na content of 0.11 mass % or less, an Fe content of 6 ppm or less, a Ca content of 1.5 ppm or less, and an Si content of 10 ppm or less as impurities in terms of alumina respectively, and having an average particle diameter of 55 ?m or less at a burning temperature of 1,100 to 1,500° C. by using a burning vessel containing Al2O3 in a range of 85 to 93 wt % and SiO2 in a range of 7 to 14 wt % and subjecting the obtained ?-alumina to wash treatment.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: February 28, 2012
    Assignee: Nippon Light Metal Company, Ltd.
    Inventors: Jun Mizuno, Toshihiro Matsuba, Shigeo Yamamoto, Takashi Yamada