Patents by Inventor Yoshinori Tanaka

Yoshinori Tanaka 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: 9942915
    Abstract: A wireless communication system includes a base station apparatus and a terminal device. The base station apparatus includes a processor that executes a process including mapping first control information concerning a first frequency band which needs a license to use for wireless communication, mapping second control information concerning a second frequency band which does not need the license to use for the wireless communication, and generating a control channel signal by arranging the first control information and the second control information in areas different from each other; and a transmitter that transmits the control channel signal generated by the processor to the terminal device.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: April 10, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Hongyang Chen, Yoshinori Tanaka, Michiharu Nakamura
  • Patent number: 9924508
    Abstract: A backhaul is configured in such a manner that a HARQ process in which a HARQ on an upstream access link is incapable of being partly or entirely performed is limited to a particular one of a plurality of HARQ processes. As a result, complexity of scheduling is reduced and efficiency of the access link is improved.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: March 20, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Yoshihiro Kawasaki, Yoshinori Tanaka, Tetsuya Yano
  • Patent number: 9921098
    Abstract: An optical unit includes an optical element serving as a light guide path, which includes an incident entrance, an emitter, a light coupler which is arranged in the case where a plurality of incident entrances are arranged, and which couples a primary light, and a light separator which is arranged in the case where a plurality of emitters are arranged, and which separates the primary light to each of the emitters. The optical unit further includes a detector which directly or indirectly detects a leakage light leaking outside of the light guide path from the light guide path.
    Type: Grant
    Filed: September 17, 2016
    Date of Patent: March 20, 2018
    Assignee: OLYMPUS CORPORATION
    Inventors: Yoshinori Tanaka, Satoshi Ohara
  • Patent number: 9916614
    Abstract: To guide other products related to a product which is taken out in hand by a customer. The present product display rack system carries out a first step for detecting an RFID number of a product taken by a customer from desired display racks 11 to 14 based upon the detection result of the RFID reader; a second step for acquiring RFID numbers of related products having related product types and functional types relative to the product type of the RFID number from the product related information data base 260 by using the detected RFID number as a key; a third step for acquiring the product display coordinates of the product type from the product coordinate data base 250 by using the acquired RFID number of the related product as a key; and a fourth step for lighting or flickering the lamp of the lamp guiding units 30 to 33 at a position close to the acquired product display coordinates.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: March 13, 2018
    Assignee: Hitachi Systems, Ltd.
    Inventors: Yoshinori Otani, Kiyoshi Kanai, Noriho Tanaka, Yoshinori Tanaka, Hirofumi Tsutsumimoto
  • Patent number: 9896952
    Abstract: A steam turbine through which a fluid flows along an axis is equipped with: a tip shroud for turbine blades that are provided on a shaft that extends with the axis as a center; an outer partition plate ring that is provided on a casing so as to face the tip shroud in a radial direction and be capable of rotating relative to the tip shroud around the axis; seal fins that extend radially inward from the outer partition plate ring and that, with the tip shroud, form minute gaps therebetween; and steam introduction surfaces that are formed on downstream sides of the seal fins and are provided so as to face the seal fins within cavities where a main vortex, generated from a leakage flow passing through a minute gap, is generated, and that guide the flow, generated from the main vortex, toward the minute gaps.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: February 20, 2018
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Kazuyuki Matsumoto, Yoshihiro Kuwamura, Hiroharu Oyama, Yoshinori Tanaka
  • Patent number: 9879786
    Abstract: A rotary machine includes turbine moving blades (50); a casing (10) covering the turbine moving blades (50) so as to define a gap at an outer circumferential side of the turbine moving blades; a leaf seal (70) having a seal body (71) that is disposed in the gap so as to protrude radially inward from the casing (10) and is capable of coming into contact with the turbine moving blades (50), and a high-pressure-side plate member (73) that is disposed along a face facing a high pressure side of the seal body (71); and a swirling flow inhibitor (80) that is provided on the high pressure side of the leaf seal (70) in the gap and inhibits a swirl flow flowing through the gap in a circumferential direction.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: January 30, 2018
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Yoshihiro Kuwamura, Koichi Ishizaka, Yoshiyuki Okabe, Kazuyuki Matsumoto, Hiroharu Oyama, Hidekazu Uehara, Yoshinori Tanaka, Shin Nishimoto
  • Publication number: 20180027566
    Abstract: A radio communication apparatus to perform communication with another radio communication apparatus by using a plurality of frequency bands, the radio communication apparatus includes: a receiver configured to receive, when performing a random access procedure to the another radio communication apparatus, a control message by using a first frequency band as a message transmitted by the radio communication apparatus at a last of the random access procedure, the control message instructing communication using a second frequency band different from the first frequency band; and a controller configured to control communication according to reception of the control message, to perform data communication with the another radio communication apparatus by using the second frequency band.
    Type: Application
    Filed: October 2, 2017
    Publication date: January 25, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Yoshiaki OHTA, Yoshihiro KAWASAKI, Tetsuya YANO, Yoshinori TANAKA
  • Publication number: 20180027452
    Abstract: A base station includes an unlicensed-band receiving unit, a determining unit, an error-rate calculating unit, and an uplink managing unit. The unlicensed-band receiving unit receives data that is transmitted from a terminal in the band that is used for a wireless communication. The determining unit determines whether the data, received by the unlicensed-band receiving unit, is collision data or non-collision data. The error-rate calculating unit calculates an error rate on the basis of data that is determined to be non-collision data by the determining unit among data that are received by the unlicensed-band receiving unit. The uplink managing unit corrects the index, which is used to select a modulation method and a coding rate when the terminal transmits data, on the basis of the error rate that is calculated by the error-rate calculating unit.
    Type: Application
    Filed: October 2, 2017
    Publication date: January 25, 2018
    Applicant: FUJITSU LIMITED
    Inventor: YOSHINORI TANAKA
  • Publication number: 20180016928
    Abstract: A turbine is provided with a seal device. The seal device includes: at least one step surface disposed in a region of an outer peripheral surface of a rotor facing a shroud of a stationary vane in the radial direction of the rotor, the at least one step surface facing upstream in a flow direction of the fluid and dividing the region of the outer peripheral surface into at least two sections in an axial direction of the rotor: at least two seal fins protruding toward the at least two sections from the stationary vane and facing the at least two sections via a seal gap; and a swirling-component application portion disposed on an end side of the shroud of the stationary vane with respect to the axial direction of the rotor and configured to be capable of applying a swirling component to the fluid flowing toward the seal gap.
    Type: Application
    Filed: December 16, 2015
    Publication date: January 18, 2018
    Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Yoshihiro Kuwamura, Hiroharu Oyama, Yoshinori Tanaka, Hideaki Sugishita
  • Publication number: 20180007710
    Abstract: According to one embodiment, a base station includes a licensed band transmitting unit, a determining unit, and an unlicensed band transmitting unit. The licensed band transmitting unit transmits, to a terminal, a control signal for specifying a resource in a shared band to be used for data transmission by the terminal. The determining unit determines whether the resource in the shared band is idle or busy. The unlicensed band transmitting unit transmits a permission signal for permitting transmission in the shared band when the determining unit determines that the resource in the shared band is idle. The control signal or the permission signal includes an offset indicating a time from the permission signal to a start of transmission of data from the terminal to the base station with reference to the permission signal transmitted from the unlicensed band transmitting unit.
    Type: Application
    Filed: September 13, 2017
    Publication date: January 4, 2018
    Applicant: FUJITSU LIMITED
    Inventor: YOSHINORI TANAKA
  • Publication number: 20180002257
    Abstract: A method for producing methyl fluoride, comprising the steps of: (1) pyrolyzing a starting compound in a gas phase to thereby obtain a mixed gas containing methyl fluoride and acid fluoride; and (2) rectifying the mixed gas obtained in step (1) to thereby obtain methyl fluoride.
    Type: Application
    Filed: February 5, 2016
    Publication date: January 4, 2018
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Shingo NAKAMURA, Yuusuke ETOU, Keisuke TANO, Yoshinori TANAKA
  • Publication number: 20170370237
    Abstract: A seal device of a turbine includes: at least one step surface disposed on a radially outer surface of a rotor blade facing a first radial-directional gap or on an outer peripheral surface of a rotor facing a second radial-directional gap, the at least one step surface facing upstream in a flow direction of a fluid and dividing the radially outer surface of the rotor blade or the outer peripheral surface of the rotor into at least two sections in an axial direction of the rotor; at least two seal fins protruding toward the at least two sections, respectively, from a surrounding member or the stationary vane, and facing the at least two sections via a seal gap, respectively, the at least two seal fins forming a cavity which extends over the at least one step surface in the axial direction of the rotor between each other.
    Type: Application
    Filed: December 16, 2015
    Publication date: December 28, 2017
    Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Yoshihiro Kuwamura, Hiroharu Oyama, Yoshinori Tanaka, Hideaki Sugishita
  • Patent number: 9853705
    Abstract: A communication system includes a base station including a plurality of antennas that separate from each other and a mobile station. The base station maps a plurality of reference signals separable from each other onto the antennas to transmit the mapped reference signals. The mobile station determines, using the received reference signals, reception quality in consideration of gain of beam-forming transmission performed by the base station with the antennas, and notifies the base station of the determined reception quality.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: December 26, 2017
    Assignee: FUJITSU LIMITED
    Inventor: Yoshinori Tanaka
  • Patent number: 9829826
    Abstract: A developing device includes a housing that includes an accommodating chamber, a development opening, and a discharge opening, part of developer that is accommodated in the accommodating chamber overflowing into and being discharged from the discharge opening; a developing roller that holds and transports the developer that is supplied from the accommodating chamber; a transporting member that transports the developer in the accommodating chamber so as to supply the developer to the developing roller while stirring the developer; a regulating member that regulates a thickness of a layer of the developer that is held by the developing roller by holding back part of the developer; and a ventilation path portion that is provided so as to extend through the regulating member, the ventilation path portion being connected to a gap space that exists in a range extending to the development opening from where the developing roller passes the regulating member.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: November 28, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masanori Kato, Yoshinori Tanaka, Tomio Ohnuki
  • Publication number: 20170339620
    Abstract: A wireless communications system includes plural terminals; one or more base stations to which the plurality of terminals are connected; a communications apparatus having a communications unit and a control unit. For each of the plural terminals, in a procedure where a target terminal which is one of the each of the plurality of terminals receives a service from a network, the communications unit is configured to receive a signal which requests establishment of a bearer between the target terminal and the communications apparatus, the signal including information enabling identification of a base station to which the target terminal is connected, and the control unit is configured to control configuring a path used for data transmission and reception between the plurality of terminals. The path includes a case of bypassing the communications apparatus while passing through the one or more base stations to which the plurality of terminals are connected.
    Type: Application
    Filed: August 9, 2017
    Publication date: November 23, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, SHINICHIRO AIKAWA, Takayoshi Ode, YOSHINORI TANAKA
  • Patent number: 9826533
    Abstract: A radio communication apparatus to perform communication with another radio communication apparatus by using a plurality of frequency bands, the radio communication apparatus includes, a receiving unit configured to receive, when performing a random access procedure to said another radio communication apparatus, a control message by using a first frequency band as a response to a preamble message transmitted by the radio communication apparatus, the control message instructing communication using a second frequency band different from the first frequency band; and a control unit configured to perform, when the control message corresponds to the preamble message, data communication with said another radio communication apparatus by using the second frequency band.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: November 21, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Yoshihiro Kawasaki, Tetsuya Yano, Yoshinori Tanaka
  • Patent number: 9820191
    Abstract: A radio communication system, that includes a source base station; a target base station; and a mobile station for receiving either first sequence number or second sequence number, or both of the first and second sequence numbers from the target base station, whereby the first sequence number is transferred from the source base station to the target base station and the second sequence number is added to PDCP (Packet Data Convergence Protocol) SDU (Service Data Unit) which is transferred from the source base station to the target base station.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: November 14, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Yoshiharu Tajima, Kazuhisa Obuchi, Yoshihiro Kawasaki, Yoshinori Tanaka, Katsumasa Sugiyama
  • Publication number: 20170311327
    Abstract: A wireless communication system includes a first communication device and multiple second communication devices. The first communication device includes a first transmitting unit that transmits control information to instruct a resource in a shared band to the second communication device by using a resource in a dedicated band. Each of the second communication devices includes a determining unit and a second transmitting unit. The determining unit determines whether the resource in the shared band is idle. When the resource in the shared band is idle, the second transmitting unit transmits data by using the resource in the shared band specified in the control information after transmitting a predetermined signal to the shared band. When receiving the predetermined signal from other second communication device, the second transmitting unit transmits data by using the resource in the shared band even when the resource in the shared band is busy.
    Type: Application
    Filed: July 7, 2017
    Publication date: October 26, 2017
    Applicant: FUJITSU LIMITED
    Inventor: YOSHINORI TANAKA
  • Publication number: 20170268658
    Abstract: A hydraulic system of vehicle transmission device is provided. A heat exchanger configured downstream is used to cool working oil discharged from a torque converter, and the working oil is supplied, as lubricating oil, to a lubricating system hydraulic circuit. On the other hand, excess oil flowing out of a regulator valve for regulating line pressure returns to an input side of an oil pump through a recycle oil path. A bypass oil path is disposed in a manner of branching from the recycle oil path and connecting to an input side of the heat exchanger. A control mechanism is disposed, and when hydraulic pressure at the side of the recycle oil path is higher than that at the side of the heat exchanger, the bypass oil path is opened to guide oil at the side of the recycle oil path to the input side of the heat exchanger.
    Type: Application
    Filed: March 13, 2017
    Publication date: September 21, 2017
    Applicant: Honda Motor Co.,Ltd.
    Inventors: Noriyuki YAGI, Yoshinori TANAKA
  • Patent number: RE46772
    Abstract: Disclosed herein is a semiconductor integrated circuit, wherein a desired circuit is formed by combining and laying out a plurality of standard cells and connecting the cells together, of which the cell length, i.e., the gap between a pair of opposed sides, is standardized, the plurality of standard cells forming the desired circuit include complementary in-phase driven standard cells, each of which includes a plurality of complementary transistor pairs that are complementary in conductivity type to each other and have their gate electrodes connected together, and N (?2) pairs of all the complementary transistor pairs are driven in phase, and the size of the standardized cell length of the complementary in-phase driven standard cell is defined as an M-fold cell length which is M (N?M?2) times the basic cell length which is appropriate to the single complementary transistor pair.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: April 3, 2018
    Assignee: Sony Corporation
    Inventor: Yoshinori Tanaka