Patents by Inventor Mitsuhiro Namura

Mitsuhiro Namura 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: 9128488
    Abstract: In a movement direction control apparatus and a non-transitory computer readable medium, a reaction torque accompanying rotation of a rotor is utilized to control a rotation angle of a body in a yaw direction. A specification of a yaw angle of a wheel as a target of the movement direction is received, and information of a friction torque is acquired. A rotation angular acceleration in the yaw direction is calculated, based on the yaw angle, the specification of which has been received, and the reaction torque is calculated, based on the calculated rotation angular acceleration in the yaw direction. An operation instruction to a motor for yaw is generated, based on the calculated reaction torque and the acquired information of the friction torque.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: September 8, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Shigeru Tsuji, Shigeki Fukunaga, Mitsuhiro Namura, Koji Kawai, Kenichi Shirato
  • Patent number: 8333009
    Abstract: An aligning device for electronic components and a bonding device using the aligning device. The aligning device includes a chamber, a flexible bellows within the chamber, two block used to hold an electronic component, a driving unit configured to move either of the two blocks relative to each other and located in an airtight chamber and an image port having a window through which one of the electronic components can be observed.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: December 18, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Atsuhiko Hirata, Shigeki Fukunaga, Shigeki Yamane, Mitsuhiro Namura, Arata Suzuki, Tomonari Watanabe
  • Patent number: 8335612
    Abstract: A falling prevention controlling device includes a wheel, and a main body arranged to swing in a pitch direction and a roll direction above the wheel, an advance/retreat command receiving unit arranged to receive an advance or a retreat command of the wheel, a target pitch angle calculating unit arranged to calculate a target pitch angle based on the received command and a rotation velocity deviation in the pitch direction derived from the detected rotation angle, a pitch inclined angle estimating unit arranged to estimate a pitch inclined angle with respect to a balanced state, from the detected pitch angular velocity and a pitch torque command generated based on the target pitch angle, and a pitch torque command generating unit arranged to generate the pitch torque command based on the target pitch angle and the pitch inclined angle.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: December 18, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Shigeru Tsuji, Shigeki Fukunaga, Mitsuhiro Namura, Koji Kawai, Kenichi Shirato
  • Publication number: 20120010783
    Abstract: In a movement direction control apparatus and a non-transitory computer readable medium, a reaction torque accompanying rotation of a rotor is utilized to control a rotation angle of a body in a yaw direction. A specification of a yaw angle of a wheel as a target of the movement direction is received, and information of a friction torque is acquired. A rotation angular acceleration in the yaw direction is calculated, based on the yaw angle, the specification of which has been received, and the reaction torque is calculated, based on the calculated rotation angular acceleration in the yaw direction. An operation instruction to a motor for yaw is generated, based on the calculated reaction torque and the acquired information of the friction torque.
    Type: Application
    Filed: September 14, 2011
    Publication date: January 12, 2012
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Shigeru TSUJI, Shigeki FUKUNAGA, Mitsuhiro NAMURA, Koji KAWAI, Kenichi SHIRATO
  • Publication number: 20110166713
    Abstract: A falling prevention controlling device includes a wheel, and a main body arranged to swing in a pitch direction and a roll direction above the wheel, an advance/retreat command receiving unit arranged to receive an advance or a retreat command of the wheel, a target pitch angle calculating unit arranged to calculate a target pitch angle based on the received command and a rotation velocity deviation in the pitch direction derived from the detected rotation angle, a pitch inclined angle estimating unit arranged to estimate a pitch inclined angle with respect to a balanced state, from the detected pitch angular velocity and a pitch torque command generated based on the target pitch angle, and a pitch torque command generating unit arranged to generate the pitch torque command based on the target pitch angle and the pitch inclined angle.
    Type: Application
    Filed: March 15, 2011
    Publication date: July 7, 2011
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Shigeru TSUJI, Shigeki FUKUNAGA, Mitsuhiro NAMURA, Koji KAWAI, Kenichi SHIRATO
  • Publication number: 20080245472
    Abstract: An aligning device that can reliably correct misalignment between electronic components for increasing the accuracy in aligning the electronic components, a bonding apparatus equipped with the aligning device, and an aligning method. The aligning device comprises a chamber; a flexible bellows configured to define an airtight chamber therein with the chamber; a driving unit configured to move one of a first block member and a second block member relative to the other, the first block member being for holding a first electronic component and being provided in the airtight chamber, and the second block member being for holding a second electronic component and being provided in the airtight chamber; and an image-taking port protruding inward from an outer surface of the chamber so as to define a space, the image-taking port having an observation window through which at least one of the first electronic component and the second electronic component is observed.
    Type: Application
    Filed: June 11, 2008
    Publication date: October 9, 2008
    Inventors: Atsuhiko Hirata, Shigeki Fukunaga, Shigeki Yamane, Mitsuhiro Namura, Arata Suzuki, Tomonari Watanabe
  • Patent number: 6705819
    Abstract: A feeder for chip components is provided wherein the chip components can be supplied with high stability even in high-speed operation by operating a conveying member at a lower speed than that of a chip mounter and operating the conveying member even when the chip mounter is stopped. The chip components on a belt are supplied in one direction by lowering a feed lever according to the input load from a chip mounter so as to drive the belt connected to the feed lever via a transmission mechanism intermittently in one direction. urging means is provided for urging the feed lever in the returning direction by storing the input load of the chip mounter as energy while an eddy current damper is provided for delaying the returning operation of the feed lever relative to the returning operation of the chip mounter. When the chip mounter operates downwardly, the feed lever is moved downwardly by linking to the chip mounter while the conveyor belt is maintained in a stationary state.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: March 16, 2004
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Akira Nemoto, Shigeki Takahashi, Nihei Kaishita, Mitsuhiro Namura
  • Patent number: 6685052
    Abstract: A feed lever is lowered, correspondingly to the load input of a chip mounter. A rotary drum is intermittently moved through a conversion mechanism, intermittently in one direction. Chip components placed in a component accommodation chamber are aligned and discharged. When a rotation resistance larger than a predetermined value acts, a belt is slid, and breaking of a chip component is prevented.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: February 3, 2004
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Akira Nemoto, Shigeki Takahashi, Nihei Kaishita, Mitsuhiro Namura