Patents by Inventor Yuichiro Nakamura

Yuichiro Nakamura 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: 9144021
    Abstract: A controller in a mobile communication system includes a management unit (151) configured to manage a resource usage condition in the mobile communication system and a determination unit (152) configured to determine to which an idle state or a power saving state different from the idle state a user equipment (10) is to transition after completion of communication of a data signal depending on the resource usage condition, and the state determined by the determination unit (152) is indicated to the user equipment (10).
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: September 22, 2015
    Assignee: NTT DOCOMO, INC.
    Inventors: Kenichiro Aoyagi, Yasuhiro Kawabe, Yuichiro Nakamura, Hideyuki Matsutani
  • Patent number: 9071941
    Abstract: A mobile communication system 100 includes a specific cell configured to allow a specific user to be provided with a service and to allow a non-specific user other than the specific user to be provided with a limited service. The mobile communication system 100 includes a management unit 23 configured to manage a presence state of the non-specific user in the specific cell in addition to a presence state of the specific user in the specific cell.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: June 30, 2015
    Assignee: NTT DOCOMO, INC.
    Inventors: Kenichiro Aoyagi, Yasuhiro Kawabe, Hideyuki Matsutani, Yuichiro Nakamura
  • Patent number: 9034154
    Abstract: A sputtering target with low generation of particles in which oxides, carbides, nitrides, borides, intermetallic compounds, carbonitrides, and other substances without ductility exist in a matrix phase made of a highly ductile substance at a volume ratio of 1 to 50%, wherein a highly ductile and conductive metal coating layer is formed on an outermost surface of the target. Provided are a sputtering target capable of improving the target surface in which numerous substances without ductility exist and preventing or inhibiting the generation of nodules and particles during sputtering, and a method of producing such a sputtering target.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: May 19, 2015
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Yuichiro Nakamura, Akira Hisano, Junnosuke Sekiguchi
  • Patent number: 9034155
    Abstract: Provided is an inorganic-particle-dispersed sputtering target in which inorganic particles are dispersed in a Co base material, wherein the inorganic particles have an electric resistivity of 1×101 ?·m or less and the volume ratio of the inorganic particles in the target is 50% or less. The sputtering target thus adjusted is advantageous in that, when sputtering is performed using a magnetron sputtering device comprising a DC power source, the inorganic particles are less charged, and arcing occurs less frequently. Accordingly, by using the sputtering target of the present invention, the occurrence of particles attributable to the arcing reduces, and a significant effect of improving the yield in forming a thin film is obtained.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: May 19, 2015
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Atsushi Sato, Yuichiro Nakamura
  • Patent number: 8988888
    Abstract: A meter device which can be mounted and removed easier than conventional meter devices. A meter device is provided with a display plate, a circuit board, a middle case which is disposed on the front surface side of the circuit board and on which the display plate is mounted, an upper case which is disposed on the front surface side of the middle case and through which the front surface can be seen, and a lower case which covers the middle case and the circuit board. A flange section which is sandwiched and held between the upper and lower cases is provided to the peripheral edge of the middle case. One of the upper case and the lower cases is provided with engagement sections, and engagement sections which engage with the engagement sections are provided to the other of cases so as to correspond to the engagement sections.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: March 24, 2015
    Assignee: Nippon Seiki Co., Ltd.
    Inventors: Satoshi Sano, Yuichiro Nakamura, Katsuhito Umezawa
  • Publication number: 20150064954
    Abstract: A connector device comprises a connector and a mating connector. The connector is mateable with the mating connector and removable from the mating connector. The mating connector includes a mating primary terminal and a mating secondary terminal. The connector includes a housing, a sub-connector, a first operation member and a second operation member. The housing holds a primary terminal while the sub-connector holds a secondary terminal. When the first operation member is operated, the housing is moved, and the primary terminal is connected to the mating primary terminal. When the second operation member is operated, the sub-connector is moved, and the secondary terminal is connected to the mating secondary terminal.
    Type: Application
    Filed: August 1, 2014
    Publication date: March 5, 2015
    Applicant: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventors: Yuya TABATA, Yuichiro NAKAMURA, Akira KUWAHARA, Yuji KAMEI
  • Patent number: 8953558
    Abstract: The first communication system is configured to determine whether or not to provide information that instructs the UE 10 to connect to the second communication system, based on a subscriber identifier allocated to the UE 10. The subscriber identifier is configured to identify whether or not the UE 10 is allowed to utilize the second communication system.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: February 10, 2015
    Assignee: NTT DOCOMO, INC.
    Inventors: Kenichiro Aoyagi, Yuichiro Nakamura, Yasuhiro Kawabe, Hideyuki Matsutani
  • Publication number: 20150027882
    Abstract: A sputtering target for a magnetic recording medium, wherein an average grain area of a B-rich phase is 90 ?m2 or less. A process for producing a sputtering target for a magnetic recording medium, wherein an alloy cast ingot is subject to heat treatment, thereafter subject to primary rolling which includes at least one pass of cold rolling, thereafter subject to secondary rolling, and machined to prepare a target. The obtained sputtering target for a magnetic recording medium has few cracks in the B-rich phase and has a high leakage flux density, and by using this target, it is possible to stabilize the discharge during sputtering, suppress arcing which occurs from cracks in the B-rich phase, and suppress the generation of particles.
    Type: Application
    Filed: March 1, 2013
    Publication date: January 29, 2015
    Inventors: Shin-ichi Ogino, Yuichiro Nakamura
  • Publication number: 20150021175
    Abstract: A magnetic material sputtering target characterized in that, in a plane for observing the oxide in the target, oxide grains in the target have an average diameter of 1.5 ?m or less, and that 60% or more of the oxide grains in the observing plane of the target have a difference between a maximum diameter and a minimum diameter of 0.4 ?m or less, where the maximum diameter is a maximum distance between arbitrary two points on the periphery of an oxide grain, and the minimum diameter is a minimum distance between two parallel lines across the oxide grain. A non-magnetic grain dispersion-type magnetic material sputtering target that can inhibit abnormal discharge due to an oxide causing occurrence of particles during sputtering is obtained.
    Type: Application
    Filed: February 15, 2013
    Publication date: January 22, 2015
    Inventors: Atsutoshi Arakawa, Hideo Takami, Yuichiro Nakamura
  • Publication number: 20150017974
    Abstract: Avoided is hasty control occurring due to repetition of transition to a “Preservation state” and return to an “Active state.” A mobile station UE according to the present invention includes: a transmission unit 13 configured to transmit “SIGNALLING CONNECTION RELEASE INDICATION” commanding release of signalling connection to a radio access network upon detecting that there is no more data to be transmitted; and a determination unit 12 configured to determine whether the mobile station UE is in a particular state or not. The transmission unit 13 is configured to keep the “SIGNALLING CONNECTION RELEASE INDICATION” from being transmitted to the radio access network if the determination unit 12 determines that the mobile station UE is in the particular state, even when the transmission unit 13 detects that there is no more data to be transmitted.
    Type: Application
    Filed: March 13, 2013
    Publication date: January 15, 2015
    Applicant: NTT DOCOMO, INC.
    Inventors: Kenichiro Aoyagi, Tooru Uchino, Yuichiro Nakamura
  • Publication number: 20140367254
    Abstract: A sputtering target containing, as metal components, 0.5 to 45 mol % of Cr and remainder being Co, and containing, as non-metal components, two or more types of oxides including Ti oxide, wherein a structure of the sputtering target is configured from regions where oxides including at least Ti oxide are dispersed in Co (non-Cr-based regions), and a region where oxides other than Ti oxide are dispersed in Cr or Co—Cr (Cr-based region), and the non-Cr-based regions are scattered in the Cr-based region. An object of this invention is to provide a sputtering target for forming a granular film which suppresses the formation of coarse complex oxide grains and generates fewer particles during sputtering.
    Type: Application
    Filed: December 12, 2012
    Publication date: December 18, 2014
    Inventors: Atsushi Sato, Yuki Ikeda, Atsutoshi Arakawa, Hideo Takami, Yuichiro Nakamura
  • Publication number: 20140364010
    Abstract: A connector device comprises a first connector, a first detection connector, a second connector and an operation member. The first connector includes a first housing holding a first power terminal. The first detection connector includes a first detection-terminal. The first detection connector is held by the first housing and is movable between a first position and a second position along a first direction. The second connector includes a second housing holding a second power terminal and a second detection-terminal. The operation member is attached to the first housing. When the operation member is turned, the first connector is moved along the first direction, and the first power terminal is connected to the second power terminal. Subsequently, when the operation member is moved along a second direction, the first detection connector is moved from the first position to the second position, and the first detection-terminal is connected to the second detection-terminal.
    Type: Application
    Filed: May 15, 2014
    Publication date: December 11, 2014
    Applicant: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventors: Akira KUWAHARA, Yuichiro NAKAMURA, Osamu HASHIGUCHI
  • Publication number: 20140350143
    Abstract: The present invention directed to a synthetic wood meal for a pellet that enables to manufacture a molded product with no deformation such as warping and distortion or, if any, deformation that can be alleviated to a practically non-problematic level and also features high mechanical strength. The synthetic wood meal comprises 30 wt % to 70 wt % of a thermoplastic resin including polypropylene or a mixed material of polypropylene and polyethylene or polyvinyl chloride; 70 wt % to 30 wt % of a wood meal having a bulk density of 0.14 to 0.22 g/cm3 and a mean fiber length of 80 to 250 ?m in which 30 wt % or less of the wood meal having a shortest fiber length of 60 ?m or less, and 25 wt % or less of the wood meal having a shortest fiber length of 30 ?m or less; and an additive including a reinforcing agent.
    Type: Application
    Filed: December 12, 2012
    Publication date: November 27, 2014
    Applicant: WPC Corportion
    Inventors: Takeyasu Kikuchi, Kazumasa Morita, Yuichiro Nakamura, Koji Higashi
  • Patent number: 8885566
    Abstract: A controller in a mobile communication system includes a management unit (151) configured to manage a resource usage condition in the mobile communication system and a determination unit (152) configured to determine a timer value for determining a frequency of transmitting a state transition request signal for causing a user equipment to transition to a power saving state after completion of communication of a data signal depending on the resource usage condition, and the timer value determined by the determination unit (152) is broadcast to the user equipment.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: November 11, 2014
    Assignee: NTT DoCoMo, Inc.
    Inventors: Kenichiro Aoyagi, Yasuhiro Kawabe, Hideyuki Matsutani, Yuichiro Nakamura
  • Patent number: 8871345
    Abstract: Disclosed are composite pellets for extrusion molding wherein fusion does not occur between the pellets, and there is no variation in size and density. A molten material obtained by an extruder for a raw material containing a thermoplastic resin and wood powder is extruded into a strand shape through a die nozzle of the extruder, and cut into a predetermined length to form a pellet. At this time, the extrusion amount, the diameter of each nozzle hole, and the number of nozzle holes are adjusted so that the linear velocity (?d) of the molten material in each nozzle hole of the die nozzle is in the range of 12 to 50 cm/sec. Further, regardless of the variations in particle diameter, etc., a stable amount of the composite pellets are supplied to the extruder, and smoothly introduced to a screw of the extruder. The composite pellets and 12-hydroxystearic acid containing a metal of Ca, Mg, or Zn are agitated together, and 0.03 to 0.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: October 28, 2014
    Assignee: WPC Corporation
    Inventors: Takeyasu Kikuchi, Kazumasa Morita, Koji Higashi, Yuichiro Nakamura
  • Publication number: 20140311902
    Abstract: Provided is an oxide-containing magnetic material sputtering target wherein the oxides have an average grain diameter of 400 nm or less. Also provided is a method of producing an oxide-containing magnetic material sputtering target. The method involves depositing a magnetic material on a substrate by the PVD or CVD method, then removing the substrate from the deposited magnetic material, pulverizing the material to obtain a raw material for the target, and further sintering the raw material. An object of the present invention is to provide a magnetic material target, in particular a nonmagnetic grain-dispersed ferromagnetic sputtering target capable of suppressing discharge abnormalities of oxides that are the cause of particle generation during sputtering.
    Type: Application
    Filed: February 26, 2013
    Publication date: October 23, 2014
    Applicant: JX Nippon Mining & Metals Corporation
    Inventors: Shin-ichi Ogino, Yuichiro Nakamura
  • Publication number: 20140284212
    Abstract: A sintered compact magnesium oxide target for sputtering having a purity of 99.99 wt % or higher excluding C, a density of 3.57 g/cm3 or higher, and a whiteness of 60% or less. In order to uniformly deposit a magnesium oxide film, a magnesium oxide target having a higher purity and a higher density is being demanded. An object of this invention is to provide a target capable of realizing the above, and a method for producing such a target. While a magnesium oxide sintered compact sputtering target is produced by hot-pressing a raw material powder, there is a problem in that color shading occurs in roughly ?60 (within a circle having a diameter of 60 mm) at the center part of the target. Conventionally, no particularly attention was given to this problem. However, in recent years, it has become necessary to investigate and resolve this problem in order to improve the deposition quality.
    Type: Application
    Filed: December 25, 2012
    Publication date: September 25, 2014
    Applicant: JX Nippon Mining & Metals Corporation
    Inventors: Akira Hisano, Yuichiro Nakamura
  • Patent number: 8824399
    Abstract: A mobile communication method according to the present invention includes the steps of: after a mobile station UE having RRC connection with the radio network controller RNC gets out of the coverage of the mobile communication system of WCDMA scheme, performing location registration to the mobile communication system of LTE scheme, issuing a notification to the radio network controller RNC by the exchange apparatus SGSN upon reception of predetermined signal, the notification implying that the mobile station UE performs the location registration to the mobile communication system of LTE scheme; and the radio network controller RNC releasing the resources for RRC connection without transmitting a signal to release the resources to the mobile station UE in response to the notification from the exchange apparatus SGSN.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: September 2, 2014
    Assignee: NTT Docomo, Inc.
    Inventors: Kenichiro Aoyagi, Yasuhiro Kawabe, Yuichiro Nakamura, Hideyuki Matsutani
  • Publication number: 20140242996
    Abstract: A radio control apparatus determines a call type of a communication terminal, and transmits a release redirection control signal to the communication terminal. When the call type is a general call, the release redirection signal not including broadcast information is transmitted to the communication terminal. When the call type is an important communication call, the release redirection control signal including the broadcast information is transmitted to the communication terminal.
    Type: Application
    Filed: November 12, 2012
    Publication date: August 28, 2014
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuichiro Nakamura, Kenichiro Aoyagi, Hideyuki Matsutani, Kouichi Morikawa
  • Patent number: 8817654
    Abstract: A radio controller 03 of the present invention includes a threshold value holding unit 11 configured to associate a traffic channel configuration with at least one threshold value and hold these associated traffic channel configuration and threshold value, a threshold value extraction unit 13 configured to extract at least one threshold value associated with a traffic channel configuration of a mobile station and a threshold value determination unit 14 configured to determine whether or not to change the traffic channel configuration of the mobile station by comparing the extracted threshold value with a communication state at a predetermined timing.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: August 26, 2014
    Assignee: NTT DoCoMo, Inc.
    Inventors: Yuichiro Nakamura, Yasuhiro Kawabe, Masafumi Masuda