Patents by Inventor Makoto Mita

Makoto Mita 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: 8213945
    Abstract: A mobile communication system can predict a temporary access concentration to a particular wireless base station, select an appropriate wireless base station and assign down channels for each mobile terminal. In respective wireless base stations, switching scheduling to a channel congestion avoidance mode is performed by checking the obtained use history of respective wireless base stations to determine the periodicity regarding the channel congestion of the respective wireless base stations. Once switched to the channel congestion avoidance mode, a wireless base station for each mobile terminal is selected based on idle channel conditions of surrounding wireless base stations and moving direction characteristics of mobile terminals currently connected to the wireless base station. The only down channel of each mobile terminal is connected to the selected wireless base station, and the wireless communication is established.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: July 3, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Asuka Jonishi, Makoto Mita
  • Publication number: 20110086455
    Abstract: To provide a compact and high performance gyroscope. A gyroscope (10) comprises an outer frame (11); an inner frame (12) positioned inside the outer frame and supported to be movable in one reciprocating direction; a plurality of proof masses (15) positioned inside the inner frame and supported to be movable in the direction orthogonal to the one reciprocating direction; a plurality of outer support suspensions (13) which connect the outer frame and the inner frame; a plurality of inner support suspensions (14) which connect the inner frame and each of the proof masses; actuators (16) for accelerating each of the proof masses; and detectors (17) for detecting displacement of the inner frame against the outer frame. The actuators oscillate the plurality of proof masses in-phase, and wherein Coriolis forces induced on each of the proof masses are summed up in the inner frame.
    Type: Application
    Filed: October 13, 2010
    Publication date: April 14, 2011
    Applicant: Japan Aerospace Exploration Agency
    Inventors: Makoto Mita, Hirobumi Saito, Hiroshi Toshiyoshi
  • Publication number: 20110034196
    Abstract: A mobile communication system can predict a temporary access concentration to a particular wireless base station, select an appropriate wireless base station and assign down channels for each mobile terminal. In respective wireless base stations, switching scheduling to a channel congestion avoidance mode is performed by checking the obtained use history of respective wireless base stations to determine the periodicity regarding the channel congestion of the respective wireless base stations. Once switched to the channel congestion avoidance mode, a wireless base station for each mobile terminal is selected based on idle channel conditions of surrounding wireless base stations and moving direction characteristics of mobile terminals currently connected to the wireless base station. The only down channel of each mobile terminal is connected to the selected wireless base station, and the wireless communication is established.
    Type: Application
    Filed: June 29, 2010
    Publication date: February 10, 2011
    Inventors: Asuka JONISHI, Makoto Mita
  • Patent number: 7640142
    Abstract: A position measurement apparatus includes a movable stage structure, a measurement unit using a laser to measure a moved position of the stage and to output a corresponding measured value, a first filter configured to attenuate a first component of a certain frequency region of the measured value outputted by the measurement unit, a second filter connected in parallel with the first filter configured to attenuate a second component other than the certain frequency region of the measured value outputted by the measurement unit, a third filter connected in series to the second filter with the series connection of the second and third filters connected in parallel with the first filter, configured to attenuate the first component of the certain frequency region of the measured value outputted by the measurement unit, and a processing unit configured to combine an output of the first filter and an output of the series connection of the second and third filters and to thereby output a first combined value.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: December 29, 2009
    Assignee: NuFlare Technology, Inc.
    Inventors: Yuichi Tachikawa, Kazumichi Yasui, Kiyoshi Nakaso, Kiyoshi Hattori, Tsugiyuki Okuya, Makoto Mita
  • Publication number: 20090090200
    Abstract: A gyroscope (10) comprises an outer frame (11); an inner frame (12) positioned inside the outer frame and supported to be movable in one reciprocating direction; a plurality of proof masses (15) positioned inside the inner frame and supported to be movable in the direction orthogonal to the one reciprocating direction; a plurality of outer support suspensions (13) which connect the outer frame and the inner frame; a plurality of inner support suspensions (14) which connect the inner frame and each of the proof masses; actuators (16) for accelerating each of the proof masses; and detectors (17) for detecting displacement of the inner frame against the outer frame. The actuators oscillate the plurality of proof masses in-phase, and wherein Coriolis forces induced on each of the proof masses are summed up in the inner frame.
    Type: Application
    Filed: May 24, 2005
    Publication date: April 9, 2009
    Inventors: Makoto Mita, Hirobumi Saito, Hiroshi Toshiyoshi
  • Publication number: 20070024864
    Abstract: A position measurement apparatus includes a movable stage structure, a measurement unit using a laser to measure a moved position of the stage and to output a corresponding measured value, a first filter configured to attenuate a first component of a certain frequency region of the measured value outputted by said measurement unit, a second filter connected in parallel with said first filter configured to attenuate a second component other than the certain frequency region of the measured value outputted by said measurement unit, a third filter connected in series to said second filter with the series connection of said second and third filters connected in parallel with the first filter, configured to attenuate the first component of said certain frequency region of the measured value outputted by said measurement unit, and a synthetic unit configured to combine an output of said first filter and an output of the series connection of the second and third filters and to thereby output a first combined value.
    Type: Application
    Filed: July 26, 2006
    Publication date: February 1, 2007
    Applicant: NuFlare Technology, Inc.
    Inventors: Yuichi Tachikawa, Kazumichi Yasui, Kiyoshi Nakaso, Kiyoshi Hattori, Tsugiyuki Okuya, Makoto Mita
  • Patent number: 7090781
    Abstract: An extremely small, self-moved, impact driven microactuator is disclosed that has a movable mass member electrostatically driven and which eliminates the need for it to be assembled individually. The microactuator includes a fixing member (1) securely connected to a pedestal part (14), an elastic support beam member (2) having one end securely connected to the fixing member, a movable mass member (3) fastened to the other end of the elastic support beam member, a driving electrode and a stopper member (4, 5) each securely connected to the pedestal part and spacedly juxtaposed with the movable mass member, and a power supply circuit (9) for applying a voltage between the movable mass and driving electrode members.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: August 15, 2006
    Assignee: Japan Science and Technology Agency
    Inventors: Hiroyuki Fujita, Dai Kobayashi, Makoto Mita, Shouichi Tensaka
  • Publication number: 20050023929
    Abstract: An extremely small, self-moved, impact driven microactuator is disclosed that has a movable mass member electrostatically driven and which eliminates the need for it to be assembled individually. The microactuator includes a fixing member (1) securely connected to a pedestal part (14), an elastic support beam member (2) having one end securely connected to the fixing member, a movable mass member (3) fastened to the other end of the elastic support beam member, a driving electrode and a stopper member (4, 5) each securely connected to the pedestal part and spacedly juxtaposed with the movable mass member, and a power supply circuit (9) for applying a voltage between the movable mass and driving electrode members.
    Type: Application
    Filed: June 25, 2004
    Publication date: February 3, 2005
    Applicant: Japan Science and Technology Agency
    Inventors: Hiroyuki Fujita, Dai Kobayashi, Makoto Mita, Shouichi Tensaka
  • Patent number: 6774533
    Abstract: An extremely small, self-moved, impact driven microactuator is disclosed that has a movable mass member electrostatically driven and which eliminates the need for it to be assembled individually. The microactuator includes a fixing member (1) securely connected to a pedestal part (14), an elastic support beam member (2) having one end securely connected to the fixing member, a movable mass member (3) fastened to the other end of the elastic support beam member, a driving electrode and a stopper member (4, 5) each securely connected to the pedestal part and spacedly juxtaposed with the movable mass member, and a power supply circuit (9) for applying a voltage between the movable mass and driving electrode members.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: August 10, 2004
    Assignee: Japan Science and Technology Agency
    Inventors: Hiroyuki Fujita, Dai Kobayashi, Makoto Mita, Shouichi Tensaka
  • Patent number: 6711321
    Abstract: A mechanical optic switch is disclosed that is of high mirror quality, high in the accuracy of opto-axial alignment between a mirror and a fiber aligning structure and yet of low insertion loss, permitting fiber optic switching by an electromagnetic force. It is made by a crystallographically oriented face dependent etching process, which simultaneously forms in a Si (100) crystallographically faced single crystal substrate (1), V-grooves (3) for fixing optical fibers (2, 2a, 2b, 2c, 2d) with the V-groove's longitudinal axes oriented in the <110> crystallographic direction or in a direction equivalent thereto; and a resilient support beam (5) and a mirror (4, 6) with the longitudinal axis of the resilient support beam and the mirror surface of the mirror oriented in the <100> direction or in a direction equivalent thereto. Slitting into the substrate from a rear surface thereof by etching renders the support beam resilient and flexible.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: March 23, 2004
    Assignee: Japan Science and Technology Corporation
    Inventors: Philippe Helin, Makoto Mita, Hiroyuki Fujita
  • Publication number: 20030038558
    Abstract: An extremely small, self-moved, impact driven microactuator is disclosed that has a movable mass member electrostatically driven and which eliminates the need for it to be assembled individually. The microactuator includes a fixing member (1) securely connected to a pedestal part (14), an elastic support beam member (2) having one end securely connected to the fixing member, a movable mass member (3) fastened to the other end of the elastic support beam member, a driving electrode and a stopper member (4, 5) each securely connected to the pedestal part and spacedly juxtaposed with the movable mass member, and a power supply circuit (9) for applying a voltage between the movable mass and driving electrode members.
    Type: Application
    Filed: September 13, 2002
    Publication date: February 27, 2003
    Inventors: Hiroyuki Fujita, Dai Kobayashi, Makoto Mita, Shouichi Tensaka
  • Publication number: 20020159683
    Abstract: A mechanical optic switch is disclosed that is of high miller quality, high in the accuracy of opto-axial alignment between a miller and a fiber aligning structure and yet of low insertion loss, permitting fiber optic switching by an electromagnetic force. It is made by a crystallographically oriented face dependent etching process, which simultaneously forms in a Si (100) crystallographically faced single crystal substrate (1), V-grooves (3) for fixing optical fibers (2, 2a, 2b, 2c, 2d) with the V-groove's longitudinal axes oriented in the <110> crystallographic direction or in a direction equivalent thereto; and a resilient support beam (5) and a miller (4, 6) with the longitudinal axis of the resilient support beam and the miller surface of the miller oriented in the <100> direction or in a direction equivalent thereto. Slitting into the substrate from a rear surface thereof by etching renders the support beam resilient and flexible.
    Type: Application
    Filed: September 13, 2001
    Publication date: October 31, 2002
    Inventors: Philippe Helin, Makoto Mita, Hiroyuki Fujita
  • Patent number: 6259548
    Abstract: A micro-mirror device includes a mirror forming substrate on which a mirror is disposed. A pair of torsion beams are disposed on opposing sides of the mirror forming substrate. An anchor projects from a supporting substrate, supporting the ends of the torsion beams. A driving frame surrounds at least one side of the torsion beams and is connected to the mirror forming substrate through a link beam. A drive force generator drives the driving frame.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: July 10, 2001
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masahiro Tsugai, Nobuaki Konno, Hiroyuki Fujita, Makoto Mita, Hiroshi Toshiyoshi, Yoshio Mita
  • Patent number: 5291596
    Abstract: A data management system comprising, a management device, wherein the management device comprises, a plurality of data, a table formation device for forming a management table indicating respective conditions of a right of use for each one of the plurality of data, a use authorization determination device for determining whether a request for the right of use for one of the plurality of data is authorized by reference to the management table, and a use allocation device for granting the right of use for one of the plurality of data on the basis of a determination by the use authorization determination device.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: March 1, 1994
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Makoto Mita
  • Patent number: 4831538
    Abstract: A menu-driven, hand-held navigation and flight performance computer having a keyboard, display, and CPU. The display includes a menu region for displaying the names of navigation and flight performance functions, one or more parameter name regions and a data region. The keyboard includes a first cursor key for selecting among the navigation and flight performance functions on the menu portion of the display. The keyboard additionally includes a key for triggering the start of a specific function selected by the cursor key, a plurality of arithmetic operator keys, a plurality of number keys, and a conversion key for converting data from one unit of measure to another. A timer is included for upcounting and downcounting and for triggering the automatic shut-off of the computer after a specific period of time expires since the last keyboard entry. The CPU retains outputs of select programs to be used as default inputs to select subsequently executed programs.
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: May 16, 1989
    Assignee: Aviation Supplies and Academics
    Inventors: Joseph Cucchiari, deceased, James J. Lilje, Makoto Mita