Patents by Inventor Akira Yamada

Akira Yamada 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).

  • Publication number: 20130208653
    Abstract: A relay node of a communication system includes a communication unit that initiates a session by executing an initial connection procedure for retrieving a cell list indicating one or more donor base station candidates from a maintenance node after establishment of an initial communication link among the relay node, a base station, and a switching center, and for establishing a communication link to a donor base station in the cell list and a switching center connected to the donor base station; a storing unit that stores the cell list; and a reconnection control unit that selects, when a radio link with the donor base station is lost, a donor base station satisfying a predetermined criterion in the cell list, and that causes the communication unit to establish a communication link to the selected donor base station and a switching center connected to the selected donor base station.
    Type: Application
    Filed: October 31, 2011
    Publication date: August 15, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Yasufumi Morioka, Akira Yamada, Hideaki Takahashi, Mikio Iwamura, Junichiro Hagiwara
  • Publication number: 20130201897
    Abstract: A base station generates first setting information commonly used for establishing a logical path for communication with a user apparatus and for establishing a logical path for communication with a relay station, and second setting information used only for establishing the logical path for communication with the relay station, and transmits a second RRC message including the second setting information to the relay station after transmitting a first RRC message including the first setting information to the relay station. The first setting information includes information indicating a priority of a radio bearer in the logical path, information indicating usage of resources in SPS, information indicating resources of SRS, configuration information in a MAC sublayer, and information on change of a security encryption key in handover, and the second setting information includes at least system information and MBSFN information.
    Type: Application
    Filed: August 10, 2011
    Publication date: August 8, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Yasufumi Morioka, Akira Yamada, Junichiro Hagiwara, Hideaki Takahashi, Mikio Iwamura
  • Publication number: 20130203342
    Abstract: A relay station includes a signal generation unit configured to generate a signal in the relay station and a receiving unit configured to receive a signal from a first communication station. The relay station further includes a signal generating node identifying unit configured to identify whether a signal to be transmitted to a second communication station is a received signal received from the first communication station or a generated signal generated by the signal generation unit. The relay station further includes a signal transmission unit configured to transmit both or one of the received signal and the generated signal associated with a radio bearer to the second communication station.
    Type: Application
    Filed: September 27, 2011
    Publication date: August 8, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Yasufumi Morioka, Akira Yamada, Hideaki Takahashi, Mikio Iwamura, Junichiro Hagiwara
  • Publication number: 20130170428
    Abstract: A mobile communication method according to the present invention includes a step of transmitting, by a radio base station DeNB, “RA Response” to a mobile station UE within a “RA Response window” for the mobile station UE when “RA Preamble” is received from the mobile station UE, a step of transmitting, by a relay node RN, a signal to the mobile station UE in a subframe other than an MBSFN subframe, and a step of transmitting, by the radio base station DeNB, “RA Response” to the relay node RN in an MBSFN subframe of a “RA Response window” for the relay node RN when “RA Preamble” is received from the relay node RN.
    Type: Application
    Filed: July 7, 2011
    Publication date: July 4, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Yasufumi Morioka, Hideaki Takahashi, Yukihiko Okumura, Mikio Iwamura, Akira Yamada
  • Publication number: 20130164314
    Abstract: A composition for treating cancer, comprising 6 to 13 peptides derived from tumor antigens, wherein the composition is used in the manner that antibodies to the respective peptides in the peripheral blood of a patient are measured and peptides to which antibodies are positive are selected and administered to the patient, and a peptide selection method.
    Type: Application
    Filed: June 30, 2011
    Publication date: June 27, 2013
    Inventors: Kyogo Itoh, Akira Yamada
  • Publication number: 20130157893
    Abstract: Provided is a gene set which is useful for predicting the therapeutic effect of an immunotherapy on a cancer patient. Also provided is a method for examining whether an immunotherapy is efficacious or not, said method comprising quantifying the expression amount of each of the genes constituting the aforesaid gene set. This examination method is useful for determining a therapeutic strategy for the cancer patient.
    Type: Application
    Filed: March 30, 2011
    Publication date: June 20, 2013
    Inventors: Kyogo Itoh, Masanori Noguchi, Satoru Kuhara, Akira Yamada, Shigeki Shichijo, Nobukazu Komatsu, Kosuke Tashiro
  • Publication number: 20130144986
    Abstract: When only part of content that is stored inside a terminal is updated, the updated content is allowed to be received efficiently, taking into account reducing the power consumption of the terminal.
    Type: Application
    Filed: May 30, 2011
    Publication date: June 6, 2013
    Applicants: MITSUBISHI ELECTRIC CORPORATION, NTT DOCOMO, INC.
    Inventors: Akira Yamada, Tomoyuki Ohya, Hosei Matsuoka, Norihiko Nakazawa, Masayuki Baba
  • Patent number: 8446907
    Abstract: A pair scheduling medium access control method used in a wireless network, comprises the steps of: checking, by a receiving node, whether a transmitting node has data packets to be subsequently sent, according to data packets received from the transmitting node; when the transmitting node has no data packets to be subsequently sent, checking whether the receiving node has data packets to be sent to the transmitting node or not; if the receiving node has data packets to be sent to the transmitting node, then adding a time period required for sending the data packets of the receiving node into an acknowledgement packet to be sent to the transmitting node; after the receiving node receives a Clear to Send packet sent from the transmitting node, sending the data packets in the receiving node to the transmitting node.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: May 21, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Lei Du, Lan Chen, Akira Yamada, Atsushi Fujiwara
  • Patent number: 8446855
    Abstract: An access point for establishing wireless connection with one or more wireless communication stations which can perform intermittent reception operation, based on a packet transmission system which allocates wireless bands by CSMA/CA, has: unit for describing, in a same packet or in respective packets, buffering information on a downlink packet addressed to a subordinate wireless communication station currently in an intermittent reception state, and transmission prohibition period information indicating a period where transmission from the subordinate wireless communication station is prohibited; unit for transmitting the instruction described packet, in which the description has been made, to the subordinate wireless communication station; unit for making a state of the access point transit to a Doze state immediately after the instruction described packet is transmitted, or when a predetermined number of downlink packets are transmitted; and unit for making a state of the access point transit to an Awake s
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: May 21, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Kei Igarashi, Akira Yamada
  • Publication number: 20130124677
    Abstract: Provided is a broadcast supplemental data transmission device, a broadcast supplemental data transmission method, and a broadcast system that can reduce the traffic of a communication network as much as possible at the time of supplementing missing data in broadcasted content data. When “GET HTTP/1.1 If Unmodified Since Time Information”, which is a request for retransmission of missing data containing time information, is received from a receiving device, an HTTP response module determines whether there is rebroadcast of contents containing missing data based on the time information contained in the request for retransmission. When it is determined by the HTTP response module that there is rebroadcast, “412 Precondition Failed”, which is one of error notifications, is transmitted as a response to the receiving device, and the transmission of the contents through a communication network is not performed.
    Type: Application
    Filed: May 20, 2011
    Publication date: May 16, 2013
    Applicants: MITSUBISHI ELECTRIC CORPORATION, NTT DOCOMO, INC.
    Inventors: Hosei Matsuoka, Akira Yamada, Tomoyuki Ohya, Norihiko Nakazawa, Masayuki Baba
  • Publication number: 20130125235
    Abstract: A method, an apparatus and a program for detecting spoofed Internet Protocol (IP) traffic directed to a network having a plurality of autonomous systems (AS) is provided. The method comprises receiving an incoming packet through an AS, the incoming packet containing a source IP address and a destination IP address, acquiring a corresponding source and destination IP address prefixes, converting the corresponding source and destination IP address prefixes into a source AS number and a destination AS number, determining if the incoming packet arrived from an unexpected source based upon the corresponding destination IP address prefix and the converted source and destination AS number using an unexpected pair tuple table generated from network routing information and generating an alert indicating that the incoming packet is not allowed to enter the network.
    Type: Application
    Filed: November 14, 2011
    Publication date: May 16, 2013
    Applicants: TELCORDIA TECHNOLOGIES, INC.
    Inventors: Ravichander Vaidyanathan, Abhrajit Ghosh, Aditya Naidu, Akira Yamada, Ayumu Kubota, Yukiko Sawaya, Yutaka Miyake
  • Publication number: 20130122892
    Abstract: A mobile communication method according to the present invention includes a step in which, when a relay node RN, which is subordinate to a radio base station DeNB and is in an “RRC_CONNECTED state”, received an “RRC connection release message” from the radio base station DeNB, the relay node RN is transitioned to an “RRC_IDLE state” after transmitting an “RRC connection release message” to a mobile station UE, which is subordinate to the relay node RN and is in the “RRC_CONNECTED state”, and a predetermined time T2 elapses.
    Type: Application
    Filed: June 22, 2011
    Publication date: May 16, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Yasufumi Morioka, Hideaki Takahashi, Yukihiko Okumura, Mikio Iwamura, Akira Yamada
  • Patent number: 8436419
    Abstract: A semiconductor device includes a high-breakdown-voltage transistor having a semiconductor layer. The semiconductor layer has an element portion and a wiring portion. The element portion has a first wiring on a front side of the semiconductor layer and a backside electrode on a back side of the semiconductor layer. The element portion is configured as a vertical transistor that causes an electric current to flow in a thickness direction of the semiconductor layer between the first wiring and the backside electrode. The backside electrode is elongated to the wiring portion. The wiring portion has a second wiring on the front side of the semiconductor layer. The wiring portion and the backside electrode provide a pulling wire that allows the electric current to flow to the second wiring.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: May 7, 2013
    Assignee: DENSO CORPORATION
    Inventors: Akira Yamada, Nozomu Akagi
  • Publication number: 20130075877
    Abstract: A semiconductor device with a lateral element includes a semiconductor substrate, first and second electrodes on the substrate, and a resistive field plate extending from the first electrode to the second electrode. The lateral element passes a current between the first and second electrodes. A voltage applied to the second electrode is less than a voltage applied to the first electrode. The resistive field plate has a first end portion and a second end portion opposite to the first end portion. The second end portion is located closer to the second electrode than the first end portion. An impurity concentration in the second end portion is equal to or greater than 1×1018 cm?3.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 28, 2013
    Applicant: DENSO CORPORATION
    Inventors: Takeshi SAKAI, Akira Yamada, Shigeki Takahashi, Youichi Ashida, Satoshi Shiraki
  • Patent number: 8379132
    Abstract: An image capture device includes a viewfinder for viewing a subject. The viewfinder either forms an integral part of the device or is an external member that is attachable to, and removable from, the device. The device includes: an optical system; a generating section for capturing an image of the subject through the optical system and generating image data; a detecting section for detecting the degree of focusing of the subject's image represented by the image data; a display section on which the subject's image is presentable based on the image data; and a controller for accepting a decision to use either the display section or the viewfinder for viewing the subject to shoot. If the controller accepts the decision to use the viewfinder, the display section displays no subject's image, and displays information about the degree of focusing of the subject's image for at least a certain period of time. The information has been obtained based on a result of detection done by the detecting section.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: February 19, 2013
    Assignee: Panasonic Corporation
    Inventors: Suguru Takamatsu, Satoko Horio, Akira Yamada
  • Patent number: 8363582
    Abstract: When a wireless communication station, which is about to communicate while intermittently receiving a multicast service, transmits, to an access point, a request packet describing information on the multicast service and an intermittent reception request, the access point describes, in a packet, intermittent reception timing information corresponding to the multicast service information described in this request packet, and replies with this packet to the wireless communication station. The wireless communication station reads the intermittent reception timing information from the received packet, and performs transition to the Awake state or the Doze state according to this intermittent reception timing. The access point, on the other hand, transmits the multicast packet to the wireless communication station according to the intermittent reception timing.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: January 29, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Kei Igarashi, Akira Yamada
  • Publication number: 20130023432
    Abstract: The present invention provides a method for predicting effect of immunotherapy on a cancer patient and/or prognosis of the cancer patient after the immunotherapy, and a gene set and a kit for use in the method.
    Type: Application
    Filed: September 30, 2010
    Publication date: January 24, 2013
    Applicant: KURUME UNIVERSITY
    Inventors: Kyogo Itoh, Masanori Noguchi, Akira Yamada, Shigeki Shichijo, Nobukazu Komatsu
  • Publication number: 20130009272
    Abstract: A semiconductor device includes a semiconductor substrate, a semiconductor element disposed in the semiconductor substrate, a guard ring surrounding at least a part of a periphery of the semiconductor element, a guard ring terminal coupled with the guard ring, a power supply line divided from a line coupled with a power source and applying a first constant voltage to the semiconductor element based on a voltage generated by the power source, a guard ring terminal fixation line divided from the line coupled with the power source and applying a second constant voltage to the guard ring terminal, a bypass capacitor disposed on the guard ring terminal fixation line so as to be coupled in parallel with the guard ring, and a resistor disposed on the guard ring terminal fixation line between the power source and the bypass capacitor.
    Type: Application
    Filed: June 27, 2012
    Publication date: January 10, 2013
    Applicant: DENSO CORPORATION
    Inventors: Shinya SAKURAI, Akira Yamada
  • Patent number: 8339761
    Abstract: A relay failure detecting device able to detect reliably a fault in a relay circuit that provides alternating current power to a load through a relay that is a double-pole switch. Individual common terminals of first and second relays are connected individually to a pair of outputs terminals of an alternating current power supply, individual normally-open terminals of the first and second relays are connected to a pair of power supply input terminals, and a dummy load that is driven by the alternating current power supply through a diode between the individual normally-closed terminals of the first and second relays is provided. A fault in the first and second relays is evaluated from the state of operation of the dummy load when the first and second relays are not driven.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: December 25, 2012
    Assignee: Azbil Corporation
    Inventors: Akira Yamada, Yuuichi Kumazawa, Katsumi Morikawa
  • Patent number: 8341508
    Abstract: A system for transmission of signals between modules wherein, for example, it is possible to transmit reliably, between modules, information relating to, for example, the actuation of safety devices. A transmission module for transmitting a pulse signal of a specific period, which indicates the existence of information, generates, in time division, pulse signals by a plurality of signal generating units that are provided in parallel, and then combines these pulse signals into a single time series pulse signal. Then an attempt is made to output this pulse signal towards a receiving-side module through a relay for controlling the output, and the signals appearing at a normally-open terminal and at a normally-closed terminal of the relay are monitored to determine whether or not there is a failure, where the generation of the pulse signal is stopped when a failure is detected.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: December 25, 2012
    Assignee: Azbil Corporation
    Inventors: Akira Yamada, Yuuichi Kumazawa, Katsumi Morikawa