Patents by Inventor Shinya Okamoto

Shinya Okamoto 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: 8565264
    Abstract: MAC entity produces a single PDU in such a way that two or more SDU's, which are received from RLC entity via logical channels, are integrated, and header H and MAC control information CONT are added. Transmission order information (time stamp TS) is added to the PDU. The PDU including the transmission order information is transferred to a transport channel, and then transmitted on a radio basis to an apparatus of the other party.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: October 22, 2013
    Assignee: Fujitsu Limited
    Inventors: Miki Yamasaki, Kazuhisa Obuchi, Hirotoshi Shimizu, Akihide Otonari, Yoshinori Soejima, Shinya Okamoto, Chiaki Shinohara
  • Patent number: 8516324
    Abstract: A data retransmission method for retransmitting a data using a wireless communication, including: receiving data transmitted from a transmitting apparatus; determining whether the received data is correct or not; transmitting data including information indicating that the received data is received correctly to the transmitting apparatus upon being determined the received data is correct, and transmitting data including information indicating that the received data is not received correctly to the transmitting apparatus upon being determined the received data is not correct; measuring an elapsed time from transmission of the data including information indicating that the received data is not received correctly; and monitoring whether to receive data corresponding to the received data from the transmitting apparatus before the elapsed time reaches a predetermined time.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: August 20, 2013
    Assignee: Fujitsu Limited
    Inventors: Chiaki Shinohara, Kazuhisa Obuchi, Masaaki Suzuki, Akihide Otonari, Yoshinori Soejima, Miki Yamasaki, Shinya Okamoto
  • Patent number: 8386671
    Abstract: A communication system includes a first communication device that transmits transmission data containing user data and control data, and a second communication device that receives the transmission data from the first communication device. The second communication device includes a temporary storing unit that temporarily stores therein the received transmission data, and a space-insufficient-information transmitting unit that transmits, when an amount of the transmission data stored in the temporary storing unit exceeds a first threshold, space insufficient information indicating that available storage space of the temporary storing unit is insufficient to the first communication device.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: February 26, 2013
    Assignee: Fujitsu Limited
    Inventors: Miki Yamasaki, Kazuhisa Obuchi, Yoshiharu Tajima, Yoshinori Soejima, Manabu Kubota, Chiaki Shinohara, Shinya Okamoto, Akihide Otonari
  • Patent number: 8307672
    Abstract: A glass substrate processing method includes irradiating laser light L onto a glass substrate 1 such that the laser light L is focused within the glass substrate 1, thereby forming a high density area 3 that has a higher density than areas where the laser light L is not irradiated around the portion where the laser light L is focused; and performing chemical etching on the glass substrate 1 using an etching solution such that at least a portion of the high density area is allowed to remain, thereby forming a projection 2 on a surface 1a of the glass substrate 1.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: November 13, 2012
    Assignee: Olympus Corporation
    Inventors: Takeshi Hidaka, Yasushi Nakamura, Tomonori Imamura, Shinya Okamoto, Hirotaka Koyo, Yasuhiro Saito, Keiji Tsunetomo
  • Publication number: 20120270064
    Abstract: The object of the present invention is to provide a slide member excellent in wear resistance and highly reliable over a long period by improving the adhesion property (anti-flaking property) of a diamond-like-carbon coating in the slide member including the diamond-like-carbon coating. The sliding member includes a substrate; and a diamond-like-carbon film including layers serially stacked in order of a first layer, a second layer and a hard carbon layer, in which the substrate is formed of an alloy steel containing at least one element selected from the group consisting of V, Cr, Nb, Mo, Ta and W, in which the first layer contains at least one element selected from the group consisting of V, Cr, Nb, Mo, Ta and W, and in which the first layer adheres to the substrate.
    Type: Application
    Filed: April 18, 2012
    Publication date: October 25, 2012
    Inventors: Shinya OKAMOTO, Itto SUGIMOTO, Noboru BABA
  • Publication number: 20120224500
    Abstract: A measuring unit measures the line quality with an eNB. A receiving unit receives line quality information transmitted from an UE. When the line quality measured by the measuring unit is different from line quality contained in the line quality information received by the receiving unit, a transmitting unit changes,the received target data to data for a layer that is different from the physical layer,and transmits the changed data to the UE.
    Type: Application
    Filed: March 9, 2012
    Publication date: September 6, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Chiaki SHINOHARA, Kazuhisa OBUCHI, Yoshiharu TAJIMA, Yoshinori SOEJIMA, Manabu KUBOTA, Miki YAMASAKI, Shinya OKAMOTO, Akihide OTONARI
  • Patent number: 8239718
    Abstract: A wireless communication apparatus having a retransmission control unit configured to refer to identification information added to received retransmit data when a second retransmit request is performed after the first transmit request is performed, and not to use the received retransmit data for forming data when the received retransmit data corresponds to the first retransmit request based on the identification information, and to use the received retransmit data for forming data when the received retransmit data corresponds to the second retransmit request based on the identification information.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: August 7, 2012
    Assignee: Fujitsu Limited
    Inventors: Kazuhisa Obuchi, Shinya Okamoto, Yoshinori Soejima, Akihide Otonari, Katsumasa Sugiyama
  • Patent number: 8171363
    Abstract: A method for counting correctly substantial transmission times of a data unit such as an RLC-PDU even if the data unit is divided before being transmitted is provided. The method includes the steps of preparing a counter for the RLC-PDU (#503), making a storage portion store a pointer indicating a position of a division PDU of the RLC-PDU to be transmitted every time when the division PDU obtained by dividing the RLC-PDU is transmitted (#504), determining whether or not the transmission times should be counted along with a transmission of the division PDU to be transmitted based on the pointer of the division PDU to be transmitted and the pointer of a division PDU that was transmitted last time (#505, #506 and #507), and making the counter perform the count process when it is determined that the transmission times should be counted (#508).
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: May 1, 2012
    Assignee: Fujitsu Limited
    Inventors: Yoshinori Soejima, Kazuhisa Obuchi, Hirotoshi Shimizu, Akihide Otonari, Shinya Okamoto, Miki Yamasaki, Chiaki Shinohara
  • Publication number: 20120045360
    Abstract: Disclosed is a Cu—Ga alloy sputtering target which enables the formation of a Cu—Ga sputtering film having excellent uniformity in film component composition (film uniformity), enables the reduction of occurrence of arcing during sputtering, has high strength, and rarely undergoes cracking during sputtering. Specifically disclosed is a Cu—Ga alloy sputtering target which comprises a Cu-based alloy containing Ga, has an average crystal particle diameter of 10 ?m or less, and has a porosity of 0.1% or less.
    Type: Application
    Filed: April 14, 2010
    Publication date: February 23, 2012
    Applicant: KOBELCO RESEARCH INSTITUTE, INC
    Inventors: Hiromi Matsumura, Akira Nanbu, Masaya Ehira, Shinya Okamoto
  • Patent number: 8073485
    Abstract: An amount of data accumulated in a data-receiving buffer is monitored. When the accumulated amount of data exceeds a threshold, a control PDU indicating that the accumulated amount of data exceeds the threshold is generated and transmitted to a data transmitter.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: December 6, 2011
    Assignee: Fujitsu Limited
    Inventors: Miki Yamasaki, Kazuhisa Obuchi, Masaaki Suzuki, Akihide Otonari, Yoshinori Soejima, Chiaki Shinohara, Shinya Okamoto
  • Publication number: 20110188464
    Abstract: A communication apparatus includes an acquisition unit that acquires a size of free space provided in each of a plurality of data transmission units of a first layer; and an allocation unit that allocates to each of a plurality of pieces of data of a second layer a contiguous sequence of free space from among the free space whose size is acquired by the acquisition unit, the contiguous sequence of free space being equal in size to each piece of data and provided in one of the data transmission units among the plurality of data transmission units. The apparatus also includes a multiplexing unit that multiplexes the plurality of pieces of data of the second layer into the plurality of data transmission units of the first layer according to the allocation of the free space by the allocation unit.
    Type: Application
    Filed: February 4, 2011
    Publication date: August 4, 2011
    Applicant: FUJITSU LIMITED
    Inventors: Chiaki SHINOHARA, Kazuhisa OBUCHI, Akihide OTONARI, Yoshinori SOEJIMA, Manabu KUBOTA, Miki YAMASAKI, Shinya OKAMOTO
  • Publication number: 20110170491
    Abstract: A communication device with a communication protocol including at least two layers includes a data reception unit that receives data transmitted from another communication device; a buffer control unit that rearranges a storage order of data in a buffer based on a number of retransmission times and a retransmission interval of retransmission data, stores the retransmission data in the buffer when the data reception unit has successfully received the retransmitted retransmission data; and a data transfer unit that transfers the data stored in the buffer to an upper layer.
    Type: Application
    Filed: March 18, 2011
    Publication date: July 14, 2011
    Applicant: Fujitsu Limited
    Inventors: Chiaki Shinohara, Kazuhisa Obuchi, Yoshiharu Tajima, Yoshinori Soejima, Manabu Kubota, Miki Yamasaki, Shinya Okamoto, Akihide Otonari
  • Publication number: 20110164694
    Abstract: A communication system includes a first communication device that transmits transmission data containing user data and control data, and a second communication device that receives the transmission data from the first communication device. The second communication device includes a temporary storing unit that temporarily stores therein the received transmission data, and a space-insufficient-information transmitting unit that transmits, when an amount of the transmission data stored in the temporary storing unit exceeds a first threshold, space insufficient information indicating that available storage space of the temporary storing unit is insufficient to the first communication device.
    Type: Application
    Filed: March 17, 2011
    Publication date: July 7, 2011
    Applicant: Fujitsu Limited
    Inventors: Miki Yamasaki, Kazuhisa Obuchi, Yoshiharu Tajima, Yoshinori Soejima, Manabu Kubota, Chiaki Shinohara, Shinya Okamoto, Akihide Otonari
  • Publication number: 20110141993
    Abstract: Instead of adding control information that should be passed on to two or more RLC entities or two or more PDCP entities on the counterpart side to data respectively in two or more RLC entities or two or more PDCP entities at the sending end, control information is added in MAC entity and then distributed to two or more RLC entities in MAC entity on the counterpart side.
    Type: Application
    Filed: February 22, 2011
    Publication date: June 16, 2011
    Applicant: FUJITSU LIMITED
    Inventors: Shinya OKAMOTO, Kazuhisa OBUCHI, Hirotoshi SHIMIZU, Akihide OTONARI, Yoshinori SOEJIMA, Miki YAMASAKI, Chiaki SHINOHARA
  • Patent number: 7936733
    Abstract: On the transmission side, the RLC PDUs divided from the RLC SDU are transmitted after retransmission identification information is attached thereto. On the reception side, the retransmission identification information attached to each received RLC PDU is referred to, and only the RLC PDUs having an identical retransmission identification information to a set assumed value are stored in a buffer memory, and the RLC PDUs having the identical retransmission identification information are assembled into an RLC SDU.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: May 3, 2011
    Assignee: Fujitsu Limited
    Inventors: Shinya Okamoto, Yoshinori Soejima, Akihide Otonari, Kazuhisa Obuchi
  • Patent number: 7936735
    Abstract: The transmission side adds retransmission identification information to the RLC sub-PDUs obtained by dividing an RLC PDU, and transmits the RLC sub-PDU with the retransmission identification information added thereto. The reception side refers to the retransmission identification information added to the received RLC sub-PDUs, and stores only the RLC sub-PDUs having retransmission information the same as an assumed value which is preset, into a buffer, and assembles an RLC PDU using the RLC sub-PDUs having the same retransmission identification information.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: May 3, 2011
    Assignee: Fujitsu Limited
    Inventors: Kazuhisa Obuchi, Shinya Okamoto, Yoshinori Soejima, Akihide Otonari
  • Patent number: 7916752
    Abstract: Instead of adding control information that should be passed on to two or more RLC entities or two or more PDCP entities on the counterpart side to data respectively in two or more RLC entities or two or more PDCP entities at the sending end, control information is added in MAC entity and then distributed to two or more RLC entities in MAC entity on the counterpart side.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: March 29, 2011
    Assignee: Fujitsu Limited
    Inventors: Shinya Okamoto, Kazuhisa Obuchi, Hirotoshi Shimizu, Akihide Otonari, Yoshinori Soejima, Miki Yamasaki, Chiaki Shinohara
  • Publication number: 20100199139
    Abstract: A wireless communication apparatus that uses a communication protocol to transmit and receive data with a data check bit, including a received data determining section that performs a data check for received data by using the data check bit to determine whether the data is error; a received result transmitting section that, when determined to be error, discards the data and transmits a retransmission request to other wireless communication apparatus of the transmitting origin, whereas determined to be not error, transmits a message indicating that the data is normal to the other wireless communication apparatus of the transmitting origin; and a retransmission asking section that determines whether a format of the data is incorrect or normal, and when determined to be normal, passes the data to predetermined processing, whereas when determined to be incorrect, discards the data and asks the received result transmitting section to request retransmission of the data.
    Type: Application
    Filed: April 1, 2010
    Publication date: August 5, 2010
    Applicant: FUJITSU LIMITED
    Inventors: Chiaki Shinohara, Kazuhisa Obuchi, Hirotoshi Shimizu, Akihide Otonari, Yoshinori Soejima, Miki Yamasaki, Shinya Okamoto
  • Patent number: 7738902
    Abstract: Disclosed is a transmission power control method in a wireless communication system in which power allocated to a pilot signal can be varied to at least a first power and a second power. The method includes the steps of measuring reception quality using power of a receive pilot signal and power of an interference signal thereof when reception quality is measured with regard to whichever of the larger of the first power and second power is allocated; measuring reception quality using the power of the receive pilot signal and overall reception power when reception quality is measured with regard to whichever of the smaller of the first power and second power is allocated; and sending a transmission power control signal to a transmitting side in such a manner that the measured reception quality will agree with a target reception quality.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: June 15, 2010
    Assignees: Fujitsu Limited, NTT DoCoMo, Inc.
    Inventors: Shuuichi Murata, Yutaka Kobayashi, Shinya Okamoto, Yoshihiro Terashima, Makoto Uchishima
  • Patent number: 7661645
    Abstract: A rack has a first shelf and a second shelf disposed upwardly of said first shelf, and a display unit is placed on the first shelf and disposed between the first shelf and the second shelf. The display unit is fixed to the second shelf by a display unit fixture. The display unit fixture has a display unit fixing member fixed to said display unit, i.e., a first fixing member, and a second fixing member having a magnet which can be attracted to a lower surface of the second shelf. The second fixing member can removably be fixed selectively to a desired position on the lower surface of said second shelf. The first fixing member and said second fixing member are connected by shafts to respective opposite ends of a connector for rotation about the shafts and are also rotatable with respect to the connector within a plane or planes perpendicular to the display screen of the display unit and a horizontal plane.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: February 16, 2010
    Assignee: NEC Corporation
    Inventor: Shinya Okamoto