Patents by Inventor Takashi Iwaki

Takashi Iwaki 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: 10359669
    Abstract: A display apparatus according to one embodiment of the present disclosure comprises a display panel, a light guiding plate that emits light, the light being derived from a light source, through a front surface of the light guiding plate toward a rear surface of the display panel, a spacer that forms a void between the display panel and the light guiding plate, and an optical sheet disposed at the void, the optical sheet having a surface to face the rear surface of the display panel and a surface to face the front surface of the light guiding plate. In the display apparatus, the spacer is formed using a shape memory alloy.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: July 23, 2019
    Assignee: Sakai Display Products Corporation
    Inventors: Takashi Iwaki, Nobuhiro Yonezawa, Daishi Ishikawa
  • Patent number: 10191211
    Abstract: A display apparatus comprises: a display panel which displays an image on one surface thereof, a light guide plate disposed to face the other surface of the display panel; a plurality of optical sheets interposed between the display panel and the light guide plate; and a spacer which is sandwiched between the display panel and the light guide plate to secure a space for interposing the optical sheets therebetween, wherein the spacer has a space holding layer fixed to the light guide plate and securing the space, and a fixed layer sandwiched between the display panel and the space holding layer and fixed to the display panel, wherein the thickness of the space holding layer is thicker than a total of the thicknesses of the plurality of optical sheets except for an optical sheet nearest to the display panel.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: January 29, 2019
    Assignee: Sakai Display Products Corporation
    Inventors: Nobuhiro Yonezawa, Takashi Iwaki
  • Publication number: 20180039015
    Abstract: A display apparatus comprises: a display panel which displays an image on one surface thereof, a light guide plate disposed to face the other surface of the display panel; a plurality of optical sheets interposed between the display panel and the light guide plate; and a spacer which is sandwiched between the display panel and the light guide plate to secure a space for interposing the optical sheets therebetween, wherein the spacer has a space holding layer fixed to the light guide plate and securing the space, and a fixed layer sandwiched between the display panel and the space holding layer and fixed to the display panel, wherein the thickness of the space holding layer is thicker than a total of the thicknesses of the plurality of optical sheets except for an optical sheet nearest to the display panel.
    Type: Application
    Filed: March 2, 2015
    Publication date: February 8, 2018
    Inventors: Nobuhiro Yonezawa, Takashi Iwaki
  • Publication number: 20170205654
    Abstract: A display apparatus according to one embodiment of the present disclosure comprises a display panel, a light guiding plate that emits light, the light being derived from a light source, through a front surface of the light guiding plate toward a rear surface of the display panel, a spacer that forms a void between the display panel and the light guiding plate, and an optical sheet disposed at the void, the optical sheet having a surface to face the rear surface of the display panel and a surface to face the front surface of the light guiding plate. In the display apparatus, the spacer is formed using a shape memory alloy.
    Type: Application
    Filed: September 26, 2014
    Publication date: July 20, 2017
    Inventors: Takashi Iwaki, Nobuhiro Yonezawa, Daishi Ishikawa
  • Patent number: 9557734
    Abstract: A control computer as a master apparatus in a control network system includes a packet generation unit. The packet generation unit: selects a control command for writing a data from among packet generation information; references the packet generation information for each of the selected control command; and includes a data for write which is read from an address in a storage section corresponding to the each control command, in a control packet to generate the control packet. A communication unit transmits the generated control packet to a controlled object as a slave device.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: January 31, 2017
    Assignee: HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD.
    Inventors: Tatsuya Maruyama, Tsutomu Yamada, Shinji Yonemoto, Takashi Iwaki, Hironori Ohashi, Yutaka Matsumoto, Ichiro Takahashi
  • Patent number: 9379763
    Abstract: Provided is a wireless device and a wireless network capable of readily communicating wirelessly using different frequency bands and wireless formats to match the state of wireless communication at the installation location of the facility being monitored. A wireless device for performing wireless communication using a wireless module suited to the state of communication, the wireless device being provided with a plurality of wireless modules on a base substrate, wherein the wireless modules are a plurality of wireless modules between which the frequency and/or the wireless format differ. The wireless device is characterized in being provided with: a device controller for selecting a wireless module suited to the state of communication, the device controller being detachably mounted on the base substrate and connected to the plurality of wireless modules by signal wires; and a terminal block for external connection and a communication interface, which are connected to the device controller.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: June 28, 2016
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Hajime Kihara, Norihisa Yanagihara, Takashi Iwaki, Takayoshi Fujioka
  • Patent number: 9176271
    Abstract: A light guide plate that uses a resin film as a material for the light guide plate, that has a reflecting or scattering pattern formed by printing, and that guides a light propagating in the film to exit and emerge from the front surface thereof. The light guide plate is thinner and highly flexible, and has high reliability and durability. A base material of the light guide plate is formed from a thermosetting polyurethane sheet with a thickness of 0.4 mm or less. When a dot pattern is formed by ink-jetting, a white UV curable ink, for which the thermosetting polyurethane exhibits a swellability such that the thermosetting polyurethane increases by 10% or more in weight as a result of being soaked in the ink for one hour at a room temperature, is used as the ink.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: November 3, 2015
    Assignee: NIPPON MEKTRON, LTD.
    Inventors: Kazuyuki Ozaki, Yasushi Katsuta, Takashi Iwaki, Hayato Takada
  • Patent number: 9148297
    Abstract: An information processor capable of ensuring time synchronization accuracy, ensuring EtherCAT command consistency, and easily developing the software based on a 2-port configuration even when a communication path error occurs includes: an arithmetic section; at least two communication sections each including a transmission section and a reception section; and a redundant communication control section that controls a communication path between the arithmetic section and the communication section. The redundant communication control section includes: a communication path state determination section that determines a network path state; and a redundant path switching section that switches connection between the arithmetic section and at least two communication sections.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: September 29, 2015
    Assignee: HITACHI, LTD.
    Inventors: Tatsuya Maruyama, Tsutomu Yamada, Norihisa Yanagihara, Shinji Yonemoto, Takashi Iwaki, Hironori Ohashi, Yutaka Matsumoto
  • Patent number: 8913514
    Abstract: A communication control unit and a communication control system are provided in which control devices can synchronously operate. In a communication control system in which a communication control unit and multiple control devices having an actuator to operate a control target are connected via a network, the communication control unit provides a control command to the control devices, synchronizes times of the communication control unit and the control devices, obtains communication delays relative to the control devices, collects control start times of the control devices, obtains a time by subtracting the control start time from a predetermined time as a start time of the control device, calculates a time obtained by subtracting the communication delay from the start time for each control device, and transmits the control command to the control devices before the earliest time of the calculated times.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: December 16, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Tatsuya Maruyama, Tsutomu Yamada, Shinji Yonemoto, Takashi Iwaki, Hironori Ohashi, Yutaka Matsumoto
  • Patent number: 8788735
    Abstract: An interrupt control unit provides controls on an interrupt from an accelerator to a CPU based on a packet transmitted to or received from a controlled object. The interrupt control unit includes: a storage part for storing therein an interrupt control timing table in which a condition of switching a mode of the interrupt control is described; and an interrupt control mode switching part for switching the mode of the interrupt control to the CPU between a permission mode and a mask mode, based on the interrupt control timing table in the storage part.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: July 22, 2014
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Tatsuya Maruyama, Tsutomu Yamada, Norihisa Yanagihara, Shinji Yonemoto, Takashi Iwaki, Hiroshi Fujii
  • Publication number: 20140036721
    Abstract: Provided is a wireless device and a wireless network capable of readily communicating wirelessly using different frequency bands and wireless formats to match the state of wireless communication at the installation location of the facility being monitored. A wireless device for performing wireless communication using a wireless module suited to the state of communication, the wireless device being provided with a plurality of wireless modules on a base substrate, wherein the wireless modules are a plurality of wireless modules between which the frequency and/or the wireless format differ. The wireless device is characterized in being provided with: a device controller for selecting a wireless module suited to the state of communication, the device controller being detachably mounted on the base substrate and connected to the plurality of wireless modules by signal wires; and a terminal block for external connection and a communication interface, which are connected to the device controller.
    Type: Application
    Filed: December 8, 2011
    Publication date: February 6, 2014
    Applicant: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Hajime Kihara, Norihisa Yanagihara, Takashi Iwaki, Takayoshi Fujioka
  • Publication number: 20120057479
    Abstract: A communication control unit and a communication control system are provided in which control devices can synchronously operate. In a communication control system in which a communication control unit and multiple control devices having an actuator to operate a control target are connected via a network, the communication control unit provides a control command to the control devices, synchronizes times of the communication control unit and the control devices, obtains communication delays relative to the control devices, collects control start times of the control devices, obtains a time by subtracting the control start time from a predetermined time as a start time of the control device, calculates a time obtained by subtracting the communication delay from the start time for each control device, and transmits the control command to the control devices before the earliest time of the calculated times.
    Type: Application
    Filed: August 19, 2011
    Publication date: March 8, 2012
    Inventors: Tatsuya MARUYAMA, Tsutomu Yamada, Shinji Yonemoto, Takashi Iwaki, Hironori Ohashi, Yutaka Matsumoto
  • Patent number: 8080931
    Abstract: A conductive film of thickness of from 3 nm to 50 nm made from a metal or ally formed on a substrate, wherein the ratio of density thereof to bulk density of the metal or alloy is from 0.2 to 0.5, and the ratio of resistivity thereof to bulk resistivity of the metal or alloy is from 100 to 100000.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: December 20, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiro Terada, Makoto Kojima, Takashi Iwaki, Takeru Mizue, Tsuyoshi Ibe
  • Publication number: 20110205886
    Abstract: An information processor capable of ensuring time synchronization accuracy, ensuring EtherCAT command consistency, and easily developing the software based on a 2-port configuration even when a communication path error occurs includes: an arithmetic section; at least two communication sections each including a transmission section and a reception section; and a redundant communication control section that controls a communication path between the arithmetic section and the communication section. The redundant communication control section includes: a communication path state determination section that determines a network path state; and a redundant path switching section that switches connection between the arithmetic section and at least two communication sections. The network provides a logical ring topology for a packet communication path.
    Type: Application
    Filed: February 18, 2011
    Publication date: August 25, 2011
    Inventors: Tatsuya Maruyama, Tsutomu Yamada, Norihisa Yanagihara, Shinji Yonemoto, Takashi Iwaki, Hironori Ohashi, Yutaka Matsumoto
  • Publication number: 20110184533
    Abstract: A control computer as a master apparatus in a control network system includes a packet generation unit. The packet generation unit: selects a control command for writing a data from among packet generation information; references the packet generation information for each of the selected control command; and includes a data for write which is read from an address in a storage section corresponding to the each control command, in a control packet to generate the control packet. A communication unit transmits the generated control packet to a controlled object as a slave device.
    Type: Application
    Filed: January 27, 2011
    Publication date: July 28, 2011
    Inventors: Tatsuya Maruyama, Tsutomu Yamada, Shinji Yonemoto, Takashi Iwaki, Hironori Ohashi, Yutaka Matsumoto, Ichiro Takahashi
  • Patent number: 7952265
    Abstract: An electron-emitting device, comprising: a pair of device electrodes formed on an insulating substrate; and a conductive film formed to connect the device electrodes and having an electron-emitting portion, wherein the conductive film has a thickness of 3 nm to 50 nm and is made of precious metal and oxide of base metal, a percentage of the base metal among metals contained in the conductive film is 30 mol % or more, and the conductive film has a concentration gradient of the oxide of the base metal in a thickness direction.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: May 31, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Iwaki, Tsuyoshi Ibe, Masahiro Terada
  • Publication number: 20110103095
    Abstract: A light guide plate that uses a resin film as a material for the light guide plate, that has a reflecting or scattering pattern formed by printing, and that guides a light propagating in the film to exit and emerge from the front surface thereof. The light guide plate is thinner and highly flexible, and has high reliability and durability. A base material of the light guide plate is formed from a thermosetting polyurethane sheet with a thickness of 0.4 mm or less. When a dot pattern is formed by ink-jetting, a white UV curable ink, for which the thermosetting polyurethane exhibits a swellability such that the thermosetting polyurethane increases by 10% or more in weight as a result of being soaked in the ink for one hour at a room temperature, is used as the ink.
    Type: Application
    Filed: March 31, 2009
    Publication date: May 5, 2011
    Applicant: Nippon Mektron, Ltd.
    Inventors: Kazuyuki Ozaki, Yasushi Katsuta, Takashi Iwaki, Hayato Takada
  • Patent number: 7923058
    Abstract: To provide an ink for producing a catalyst capable of stably forming metal particles which act as catalysts suitable for growth of carbon fibers by applying them onto a substrate. A solution containing a metal organic compound containing any one metal of Pd, Fe, Co and Ni and a water-soluble polymer compound is formed by using water or an organic solvent as a main solvent.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: April 12, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Iwaki, Takeo Tsukamoto
  • Publication number: 20100070668
    Abstract: An interrupt control unit provides controls on an interrupt from an accelerator to a CPU based on a packet transmitted to or received from a controlled object. The interrupt control unit includes: a storage part for storing therein an interrupt control timing table in which a condition of switching a mode of the interrupt control is described; and an interrupt control mode switching part for switching the mode of the interrupt control to the CPU between a permission mode and a mask mode, based on the interrupt control timing table in the storage part.
    Type: Application
    Filed: August 20, 2009
    Publication date: March 18, 2010
    Inventors: Tatsuya Maruyama, Tsutomu Yamada, Norihisa Yanagihara, Shinji Yonemoto, Takashi Iwaki, Hiroshi Fujii
  • Publication number: 20090039755
    Abstract: An electron-emitting device, comprising: a pair of device electrodes formed on an insulating substrate; and a conductive film formed to connect the device electrodes and having an electron-emitting portion, wherein the conductive film has a thickness of 3 nm to 50 nm and is made of precious metal and oxide of base metal, a percentage of the base metal among metals contained in the conductive film is 30 mol % or more, and the conductive film has a concentration gradient of the oxide of the base metal in a thickness direction.
    Type: Application
    Filed: August 1, 2008
    Publication date: February 12, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takashi Iwaki, Tsuyoshi Ibe, Masahiro Terada