Patents by Inventor Hiroyuki Yamazaki

Hiroyuki Yamazaki 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: 10743229
    Abstract: A base station and method thereof includes transmitting from the base station to a user equipment, parameters for an offload from the cellular RAN to a wireless local area network (LAN). The parameters are used by the user equipment to perform an access network selection between the cellular RAN and the wireless LAN, and include a first threshold for comparison with a cellular signal strength of the cellular RAN, a second threshold for comparison with a wireless LAN signal strength of the wireless LAN, and a third threshold for comparison with a load of the wireless LAN. When performing access network selection, the parameters may cause the user equipment to perform the offload, in response to the cellular signal strength being lower than the first threshold, the wireless LAN signal strength being higher than the second threshold, and the load of the wireless LAN being lower than the third threshold.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: August 11, 2020
    Assignee: KYOCERA Corporation
    Inventors: Henry Chang, Yushi Nagasaka, Kugo Morita, Fangwei Tong, Masato Fujishiro, Chiharu Yamazaki, Hiroyuki Adachi, Noriyoshi Fukuta
  • Patent number: 10731383
    Abstract: Aspects of a symmetric coherent optical mixer are described. In one example, the coherent optical mixer includes a group of symmetric MMI couplers and a group of symmetric bend waveguides optically coupled between the MMI couplers. The group of symmetric MMI couplers can include an input for a local light reference signal, an input for a modulated light signal, and outputs for detection of data from the modulated light signal. The group of symmetric MMI couplers can include four MMI couplers, each of which comprises a 2×2 MMI coupler of symmetric dimension. The group of symmetric bend waveguides can include a symmetric layout of four 90° bend waveguides optically coupled between the four MMI couplers. The coherent optical mixer, which can be implemented as a Silicon Photonics (SiPh) device, provides better performance as a 90° degree optical hybrid than prior mixer devices due to its symmetric layout.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: August 4, 2020
    Assignee: MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.
    Inventor: Hiroyuki Yamazaki
  • Publication number: 20200243911
    Abstract: The invention provides an electrolyte solution capable of providing an electrochemical device having low resistance and excellent high-temperature storage characteristics and cycle characteristics. The electrolyte solution contains lithium fluorosulfonate and a solvent containing a compound (1) represented by the following formula (1):CF2HCOOCH3.
    Type: Application
    Filed: July 31, 2018
    Publication date: July 30, 2020
    Applicant: DAIKIN INDUSTRIES, LTD
    Inventors: Yoshiko KUWAJIMA, Kenzou TAKAHASHI, Shigeaki YAMAZAKI, Hiroyuki ARIMA, Tomoya HIDAKA, Masakazu KINOSHITA, Hisako NAKAMURA, Takaya YAMADA, Toshiharu SHIMOOKA, Yuuki SUZUKI, Tatsuya OHTSUKA
  • Publication number: 20200219905
    Abstract: An oxide semiconductor layer which is intrinsic or substantially intrinsic and includes a crystalline region in a surface portion of the oxide semiconductor layer is used for the transistors. An intrinsic or substantially intrinsic semiconductor from which an impurity which is to be an electron donor (donor) is removed from an oxide semiconductor and which has a larger energy gap than a silicon semiconductor is used. Electrical characteristics of the transistors can be controlled by controlling the potential of a pair of conductive films which are provided on opposite sides from each other with respect to the oxide semiconductor layer, each with an insulating film arranged therebetween, so that the position of a channel formed in the oxide semiconductor layer is determined.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Inventors: Shunpei YAMAZAKI, Jun KOYAMA, Hiroyuki MIYAKE
  • Patent number: 10708045
    Abstract: A confidential information setting apparatus includes: a communication unit that acquires an encryption key and condition information, which is a condition for setting a secret key to a terminal, from a memory unit of a server and acquires a terminal ID, which is an identifier for uniquely identifying the terminal, and the secret key associated with the terminal ID and encrypted from a memory unit of a user apparatus; an encryption processing unit that decrypts the encrypted secret key with the encryption key; and a control unit that judges whether the decrypted secret key can be set to the terminal or not, based on the condition information and sets the secret key to the terminal when a result of the judgment indicates that the secret key can be set to the terminal.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: July 7, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Hiroki Yamazaki, Hiromi Isokawa, Hiroyuki Higaki
  • Patent number: 10705046
    Abstract: Provided is an electrophoresis device that, by electrophoresis, feeds a sample into capillaries and optically detects the sample, the electrophoresis device being provided with capillaries, a capillary head provided at the distal end of the capillaries, a phoretic medium-filled container used for electrophoresis and filled with a phoretic medium, a guide member that covers the side surface of the phoretic medium-filled container, a seal member that seals from below the phoretic medium filled in the phoretic medium-filled container, and a plunger that presses the seal member.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: July 7, 2020
    Assignee: Hitachi High-Tech Corporation
    Inventors: Ryusuke Kimura, Motohiro Yamazaki, Hitoshi Miyata, Hiroyuki Higashino
  • Patent number: 10700099
    Abstract: A semiconductor device including a capacitor whose charge capacity is increased while improving the aperture ratio is provided. Further, a semiconductor device which consumes less power is provided. A transistor which includes a light-transmitting semiconductor film, a capacitor in which a dielectric film is provided between a pair of electrodes, an insulating film which is provided over the light-transmitting semiconductor film, and a first light-transmitting conductive film which is provided over the insulating film are included. The capacitor includes the first light-transmitting conductive film which serves as one electrode, the insulating film which functions as a dielectric, and a second light-transmitting conductive film which faces the first light-transmitting conductive film with the insulating film positioned therebetween and functions as the other electrode.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: June 30, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hiroyuki Miyake, Hideaki Shishido, Jun Koyama
  • Patent number: 10692687
    Abstract: A low noise blanking unit corresponds to a wide range of acceleration voltages (from several times higher than related voltages to low acceleration voltages) of an electron beam. A blanking unit of the measurement and inspection device includes a blanking control circuit, in which (i) an upper and a lower blanking electrodes are arranged in the irradiation direction of an electron beam; electrodes on the reverse sides of two opposing electrodes in each of the blanking electrodes arranged in the same direction are connected with the ground, (ii) when blanking is ON, positive voltages are output to remaining electrodes of the upper blanking electrode and negative voltages are output to remaining electrodes of the lower blanking electrode, and (iii) when the blanking is OFF, the same ground reference signal is output to the remaining electrodes of the upper blanking electrode and to the remaining electrodes of the lower blanking electrode.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: June 23, 2020
    Assignee: HITACHI HIGH-TECHNOLOGIES CORPORATION
    Inventors: Wen Li, Shinichi Murakami, Hiroyuki Takahashi, Yuko Sasaki, Minoru Yamazaki, Hajime Kawano
  • Publication number: 20200176486
    Abstract: An object of an embodiment of the present invention is to manufacture a semiconductor device with high display quality and high reliability, which includes a pixel portion and a driver circuit portion capable of high-speed operation over one substrate, using transistors having favorable electric characteristics and high reliability as switching elements. Two kinds of transistors, in each of which an oxide semiconductor layer including a crystalline region on one surface side is used as an active layer, are formed in a driver circuit portion and a pixel portion. Electric characteristics of the transistors can be selected by choosing the position of the gate electrode layer which determines the position of the channel. Thus, a semiconductor device including a driver circuit portion capable of high-speed operation and a pixel portion over one substrate can be manufactured.
    Type: Application
    Filed: February 3, 2020
    Publication date: June 4, 2020
    Inventors: Shunpei YAMAZAKI, Jun KOYAMA, Hiroyuki MIYAKE
  • Patent number: 10667156
    Abstract: A base station (200) according to an embodiment performs radio communication with a radio terminal (100). The base station transmits a reference signal to the radio terminal with a specific polarized wave, receives, from the radio terminal, polarized wave adjustment information generated by using the reference signal, adjusts a polarized wave based on the specific polarized wave by using the polarized wave adjustment information, and transmits an information signal to the radio terminal with the adjusted polarized wave.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: May 26, 2020
    Assignee: KYOCERA Corporation
    Inventors: Fangwei Tong, Atsuhisa Inakoshi, Hiroyuki Urabayashi, Chiharu Yamazaki, Kugo Morita
  • Publication number: 20200161589
    Abstract: An organic EL display device is provided in which a change in tint is reduced in a bent portion. This organic EL display device is an organic electroluminescent display device including, from a viewing side, a circularly polarizing plate, a first adhesion layer, and a bendable organic electroluminescent display panel, in which the circularly polarizing plate includes, from the viewing side, a linear polarizer, a second adhesion layer, and a phase difference layer functioning as a ?/4 plate, a complex modulus of elasticity of the first adhesion layer is 2.50×105 Pa or less, the first adhesion layer is thicker than the second adhesion layer, and an absorption axis of the linear polarizer is positioned at an angle of 0°±30° or 90°±30° with respect to an extension direction of a ridge line formed in a case where the organic electroluminescent display device is bent.
    Type: Application
    Filed: January 23, 2020
    Publication date: May 21, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Toshihiro KONISHI, Kenta YAMAZAKI, Shinpei YOSHIDA, Ryo SATAKE, Hiroyuki OKUSA
  • Patent number: 10657882
    Abstract: Objects are to provide a display device the power consumption of which is reduced, to provide a self-luminous display device the power consumption of which is reduced and which is capable of long-term use in a dark place. A circuit is formed using a thin film transistor in which a highly-purified oxide semiconductor is used and a pixel can keep a certain state (a state in which a video signal has been written). As a result, even in the case of displaying a still image, stable operation is easily performed. In addition, an operation interval of a driver circuit can be extended, which results in a reduction in power consumption of a display device. Moreover, a light-storing material is used in a pixel portion of a self-luminous display device to store light, whereby the display device can be used in a dark place for a long time.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: May 19, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama, Hiroyuki Miyake
  • Publication number: 20200145858
    Abstract: A user terminal, method used in a user terminal, and an apparatus for a user terminal include receiving from a base station measurement configuration information configuring measurement of a frequency channel in an unlicensed band, measuring signal strength of radio signals transmitted in the frequency channel, determining occupancy situation of the frequency channel based on the measured signal strength and a threshold, and transmitting to the base station a measurement report including information indicating the occupancy situation of the frequency channel.
    Type: Application
    Filed: January 7, 2020
    Publication date: May 7, 2020
    Applicant: KYOCERA Corporation
    Inventors: Naohisa MATSUMOTO, Kugo MORITA, Hiroyuki ADACHI, Hiroyuki URABAYASHI, Chiharu YAMAZAKI
  • Publication number: 20200145627
    Abstract: A projector is provided that includes a light source configured to radiate light, an electro-optical panel including a pixel circuit configured to receive light from the light source and emit the light, and an optical axis shifting element configured to shift an optical axis of the light emitted from the pixel circuit, with the projector being configured to display a pixel on a projection surface, based on the light emitted from the pixel circuit via the optical axis shifting element. When shifting a position of the pixel on the projection surface from a first position to a second position in a first direction, the optical axis shifting element shifts an optical axis of the light emitted from the pixel circuit using a path different from a shortest path from the first position to the second position.
    Type: Application
    Filed: November 4, 2019
    Publication date: May 7, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hiroyuki HOSAKA, Tetsuro YAMAZAKI
  • Patent number: 10645606
    Abstract: A radio communication system comprises: a first area entity operated in a first operation scheme in which use of a specific frequency band is permitted; and a second area entity operated in a second operation scheme in which use of the specific frequency band is permitted. A user terminal existing in an area of the first area entity notifies the first area entity of a frequency band change request for requesting a change of a frequency band used by the first area entity when a frequency of the specific frequency band used by the first area entity is congested due to use by the second area entity. The first area entity changes a frequency band used by the first area entity in response to the frequency band change request.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: May 5, 2020
    Assignee: KYOCERA Corporation
    Inventors: Masato Fujishiro, Chiharu Yamazaki, Hiroyuki Urabayashi, Kugo Morita, Noriyoshi Fukuta
  • Patent number: 10634056
    Abstract: A combustor including: a transition piece having a cylindrical shape and including an inlet of combustion gas at one end and an outlet of the combustion gas at the other end and configured to allow the combustion gas flowing from the inlet to flow out from the outlet so as to introduce the combustion gas into a turbine; a cooling medium introduction unit introduced with the cooling medium and provided on an outer periphery portion in an outlet side of the transition piece; a cooling medium inlet configured to introduce the cooling medium into the cooling medium introduction unit; and a cooling portion, connected to the cooling medium introduction unit, provided on a portion from the outlet of the transition piece toward the inlet and configured to allow the cooling medium from the cooling medium introduction unit to pass through the outlet toward the inlet.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: April 28, 2020
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Satoshi Mizukami, Tetsu Konishi, Hiroyuki Yamazaki, Tomoharu Fujita
  • Patent number: 10629149
    Abstract: To provide a semiconductor device including a narrowed bezel obtained by designing a gate driver circuit. A gate driver of a display device includes a shift register unit, a demultiplexer circuit, and n signal lines. By connecting the n signal lines for transmitting clock signals to one stage of the shift register unit, (n?3) output signals can be output. The larger n becomes, the smaller the rate of signal lines for transmitting clock signals which do not contribute to output becomes; accordingly, the area of the shift register unit part is small compared to a conventional structure in which one stage of a shift register unit outputs one output signal. Therefore, the gate driver circuit can have a narrow bezel.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: April 21, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroyuki Miyake, Kouhei Toyotaka, Shunpei Yamazaki
  • Publication number: 20200110706
    Abstract: A memory system includes a memory and a memory controller. The memory includes first and second parallel operation elements, each including a plurality of first and second storage regions, respectively, and first and second buffers, respectively. The memory controller performs operations on the memory based on first and second group information. The first group information defines first groups, each first group including one first storage region and one second storage region, and each second group including at least two first groups. The memory controller, in response to a host command targeting a first storage region, (i) acquires first data from the first buffer, and thereafter (ii) causes the memory to read out second data to the first buffer. The first storage region storing the first data and the second storage region storing the second data belong to different first groups and to the same second group.
    Type: Application
    Filed: December 5, 2019
    Publication date: April 9, 2020
    Inventors: Hirokazu TAKEUCHI, Takahiro MIOMO, Hiroyuki YAMAGUCHI, Hajime YAMAZAKI
  • Patent number: 10615180
    Abstract: An oxide semiconductor layer which is intrinsic or substantially intrinsic and includes a crystalline region in a surface portion of the oxide semiconductor layer is used for the transistors. An intrinsic or substantially intrinsic semiconductor from which an impurity which is to be an electron donor (donor) is removed from an oxide semiconductor and which has a larger energy gap than a silicon semiconductor is used. Electrical characteristics of the transistors can be controlled by controlling the potential of a pair of conductive films which are provided on opposite sides from each other with respect to the oxide semiconductor layer, each with an insulating film arranged therebetween, so that the position of a channel formed in the oxide semiconductor layer is determined.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: April 7, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama, Hiroyuki Miyake
  • Patent number: 10616870
    Abstract: A user terminal according to an embodiment transmits uplink data to a base station using an unlicensed band. The user terminal includes a controller configured to, if uplink data transmission is started from a middle of a subframe according to a monitoring result of the unlicensed band, perform processing of transmitting a specific signal being different from the uplink data, at a beginning of the uplink data.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: April 7, 2020
    Assignee: KYOCERA Corporation
    Inventors: Naohisa Matsumoto, Hiroyuki Urabayashi, Kugo Morita, Chiharu Yamazaki