Patents by Inventor Masahiro Muramatsu

Masahiro Muramatsu 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: 20220161333
    Abstract: A machine tool (1) includes: a front spindle (10) having a front chuck (12); a rear spindle (20) having a rear chuck (22); a controller (50) configured to cause the rear chuck (22) to perform a fastening operation for fastening a work (W) fastened to the front chuck (12) to the rear chuck (22); and a detector (60) configured to detect an abnormality caused by the fastening operation by the rear chuck (22), based on measurement data associated with a vibration of at least one of the front chuck (12) and the rear chuck (22).
    Type: Application
    Filed: March 30, 2020
    Publication date: May 26, 2022
    Applicant: CITIZEN WATCH CO., LTD.
    Inventors: Atsushi INOUE, Masahiro MURAMATSU, Kenji NOGUCHI, Kohichi KAZAHARI
  • Patent number: 11253924
    Abstract: A control device for a machine tool and a machine tool, for which settings of the number of vibrations per rotation become easy, is provided. The control device of the machine tool controls a relative rotation between a workpiece and a cutting tool and a relative reciprocal movement between the workpiece and the cutting tool in a feed direction to perform vibration cutting to the workpiece. The control device includes a control section for controlling a spindle headstock, a first tool post, and a second tool post, the workpiece W being installed on the spindle headstock, the first tool post being provided to be reciprocally movable along the feed direction with respect to the spindle headstock and installed with a first cutting tool for cutting the workpiece, and the second tool post being provided to be reciprocally movable along the feed direction with respect to the spindle headstock independently of the first tool post and installed with a second cutting tool for cutting the workpiece.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: February 22, 2022
    Assignee: CITIZEN WATCH CO., LTD.
    Inventors: Ayako Kitakaze, Masahiro Muramatsu, Kenji Noguchi
  • Patent number: 11084101
    Abstract: To provide a machine tool and a control device for the machine tool that allows a user to select the vibration condition according to an input number of rotations and an input number of vibrations.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: August 10, 2021
    Assignee: CITIZEN WATCH CO., LTD.
    Inventors: Masahiro Muramatsu, Daisuke Sakashita, Haruhiko Misono
  • Publication number: 20200101538
    Abstract: A control device for a machine tool and a machine tool, for which settings of the number of vibrations per rotation become easy, is provided. The control device of the machine tool controls a relative rotation between a workpiece and a cutting tool and a relative reciprocal movement between the workpiece and the cutting tool in a feed direction to perform vibration cutting to the workpiece. The control device includes a control section for controlling a spindle headstock, a first tool post, and a second tool post, the workpiece W being installed on the spindle headstock, the first tool post being provided to be reciprocally movable along the feed direction with respect to the spindle headstock and installed with a first cutting tool for cutting the workpiece, and the second tool post being provided to be reciprocally movable along the feed direction with respect to the spindle headstock independently of the first tool post and installed with a second cutting tool for cutting the workpiece.
    Type: Application
    Filed: March 28, 2018
    Publication date: April 2, 2020
    Applicant: CITIZEN WATCH CO., LTD.
    Inventors: Ayako KITAKAZE, Masahiro MURAMATSU, Kenji NOGUCHI
  • Publication number: 20200094327
    Abstract: To provide a machine tool and a control device for the machine tool that allows a user to select the vibration condition according to an input number of rotations and an input number of vibrations.
    Type: Application
    Filed: December 21, 2017
    Publication date: March 26, 2020
    Applicant: CITIZEN WATCH CO., LTD.
    Inventors: Masahiro MURAMATSU, Daisuke SAKASHITA, Haruhiko MISONO
  • Patent number: 10241493
    Abstract: To provide a machine tool and a control device for the machine tool that can smoothly cut a workpiece while segmenting chips by feeding a cutting tool in a feed direction while reciprocally vibrating the cutting tool along the feed direction on the basis of a condition set by a user.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: March 26, 2019
    Assignees: Citizen Watch Co., Ltd., Citizen Machinery Co., Ltd.
    Inventors: Ayako Kitakaze, Masahiro Muramatsu, Toshinari Oyama, Kazuhiko Sannomiya
  • Publication number: 20170102685
    Abstract: To provide a machine tool and a control device for the machine tool that can smoothly cut a workpiece while segmenting chips by feeding a cutting tool in a feed direction while reciprocally vibrating the cutting tool along the feed direction on the basis of a condition set by a user.
    Type: Application
    Filed: March 24, 2015
    Publication date: April 13, 2017
    Inventors: Ayako Kitakaze, Masahiro Muramatsu, Toshinari Oyama, Kazuhiko Sannomiya
  • Patent number: 8704645
    Abstract: According to one embodiment, a remote controller includes first operation keys, a first illumination module, second operation keys, a second illumination module, a cover, an open-close detector, and a controller. The first illumination module illuminates the first operation keys. The second operation keys are arranged in different location than the first operation keys. The second illumination module illuminates the second operation keys. The cover is capable of covering the second operation keys. The open-close detector detects whether the cover is open or closed. The controller controls the first illumination module and the second illumination module individually to turn on or off according to whether the cover is open or closed detected by the open-close detector.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: April 22, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomotaka Ida, Masahiro Muramatsu
  • Publication number: 20120161946
    Abstract: According to one embodiment, a remote controller includes first operation keys, a first illumination module, second operation keys, a second illumination module, a cover, an open-close detector, and a controller. The first illumination module illuminates the first operation keys. The second operation keys are arranged in different location than the first operation keys. The second illumination module illuminates the second operation keys. The cover is capable of covering the second operation keys. The open-close detector detects whether the cover is open or closed. The controller controls the first illumination module and the second illumination module individually to turn on or off according to whether the cover is open or closed detected by the open-close detector.
    Type: Application
    Filed: August 5, 2011
    Publication date: June 28, 2012
    Inventors: Tomotaka Ida, Masahiro Muramatsu
  • Publication number: 20120162539
    Abstract: According to one embodiment, a remote controller includes substantially rectangular parallelepiped first and second housings and a joint. The first housing includes operation keys on the upper surface to control an object device. The second housing includes input keys on the upper surface to input information and at least one operation button on a surface other than the upper surface. The joint joins the first housing and the second housing to be relatively rotatable about a rotation axis located at a predetermined position such that the upper surface of the second housing faces the bottom surface of the first housing. To operate the input keys, the joint is rotated to a position where a long side of the first housing and a long side of the second housing form substantially the right angle and the input keys are exposed.
    Type: Application
    Filed: October 27, 2011
    Publication date: June 28, 2012
    Inventors: Masahiro Muramatsu, Mikio Kamegi
  • Publication number: 20120128024
    Abstract: In order to improve precision in measuring a deep body temperature by suppressing a heat flux in a plane direction while achieving satisfactory contact between a temperature sensing element and a skin, there is provided a temperature measuring device (1) including: temperature sensing elements (31a, 31b, and 32a to 32h) provided to at least one of inlets (21a to 25a) and outlets (21b to 21b) of first and second heat flow path members (21 to 25), respectively; and a casing (11) having a lower thermal conductivity than thermal conductivities of the first and second heat flow path members (21 to 25), for supporting the first and second heat flow path members (21 to 25), in which a gaseous layer or a vacuum layer (12) is formed among the first and second heat flow path members (21 to 25).
    Type: Application
    Filed: November 22, 2011
    Publication date: May 24, 2012
    Applicant: CITIZEN HOLDINGS CO., LTD.
    Inventors: Masato TSUCHIDA, Masahiro MURAMATSU
  • Patent number: 7952274
    Abstract: The dial module includes: a sheet-shaped dial having a design part on a surface of the dial; a sheet-shaped light source fixed to a back surface of the dial for illuminating the design part; and a flexible printed circuit fixed to a back surface of the light source. The dial module thus constructed enables to reduce the number of components, to facilitate assembly of a meter which employs the dial module therein, to improve the productivity, and to reduce the cost.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: May 31, 2011
    Assignee: Yazaki Corporation
    Inventor: Masahiro Muramatsu
  • Patent number: 7699624
    Abstract: The dial module includes: a sheet-shaped dial having a design part on a surface of the dial; a sheet-shaped light source fixed to a back surface of the dial for illuminating the design part; and a flexible printed circuit fixed to a back surface of the light source. The dial module thus constructed enables to reduce the number of components, to facilitate assembly of a meter which employs the dial module therein, to improve the productivity, and to reduce the cost.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: April 20, 2010
    Assignee: Yazaki Corporation
    Inventor: Masahiro Muramatsu
  • Publication number: 20080298027
    Abstract: The dial module includes: a sheet-shaped dial having a design part on a surface of the dial; a sheet-shaped light source fixed to a back surface of the dial for illuminating the design part; and a flexible printed circuit fixed to a back surface of the light source. The dial module thus constructed enables to reduce the number of components, to facilitate assembly of a meter which employs the dial module therein, to improve the productivity, and to reduce the cost.
    Type: Application
    Filed: July 31, 2008
    Publication date: December 4, 2008
    Applicant: YAZAKI CORPORATION
    Inventor: Masahiro Muramatsu
  • Publication number: 20080299862
    Abstract: The dial module includes: a sheet-shaped dial having a design part on a surface of the dial; a sheet-shaped light source fixed to a back surface of the dial for illuminating the design part; and a flexible printed circuit fixed to a back surface of the light source. The dial module thus constructed enables to reduce the number of components, to facilitate assembly of a meter which employs the dial module therein, to improve the productivity, and to reduce the cost.
    Type: Application
    Filed: July 31, 2008
    Publication date: December 4, 2008
    Applicant: YAZAKI CORPORATION
    Inventor: Masahiro Muramatsu
  • Patent number: 7369044
    Abstract: A display apparatus for a vehicle includes display screen having a plurality of display areas such as a tachometer display area, a speedometer display area, and an auxiliary display area. The display apparatus for a vehicle further includes a CPU for controlling images displayed on the display screen. A display partition member is mounted on a part of the display screen.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: May 6, 2008
    Assignee: Yazaki Corporation
    Inventors: Shunsuke Ono, Masahiro Muramatsu, Yoshiharu Matsuo, Hiroyuki Yokota, Satoshi Saotome, Takeshi Matsumura
  • Patent number: 7259782
    Abstract: Communicating apparatus to be provided between an intermediate line and transmission lines to establish data communications, the intermediate line and the transmission lines having in combination data pass therethrough, the transmission lines including first line and second line 1 and 2, is designed to select the transmission line from among the first and second lines 1 and 2 based on detecting the data passing through each of the first and second lines 1 and 2 so as to transmit data without collision.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: August 21, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuyuki Ogawa, Masahiro Muramatsu
  • Patent number: 7236089
    Abstract: The vehicle-mounted display unit includes a display having a meter area and an auxiliary indication area. The meter area indicates a dial image for showing measured values of an operational condition of a motor vehicle. The auxiliary indication area indicates information other than the measured values. The display unit has a control device for controlling contents indicated on the display. The control device indicates a normal length pointer extended in the auxiliary indication area at a normal indication state, while the control device indicates a shorter length pointer in the auxiliary indication area when the other information is indicated.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: June 26, 2007
    Assignee: Yazaki Corporation
    Inventors: Shunsuke Ono, Masahiro Muramatsu, Yoshiharu Matsuo
  • Publication number: 20060044778
    Abstract: The dial module includes: a sheet-shaped dial having a design part on a surface of the dial; a sheet-shaped light source fixed to a back surface of the dial for illuminating the design part; and a flexible printed circuit fixed to a back surface of the light source. The dial module thus constructed enables to reduce the number of components, to facilitate assembly of a meter which employs the dial module therein, to improve the productivity, and to reduce the cost.
    Type: Application
    Filed: September 19, 2003
    Publication date: March 2, 2006
    Inventor: Masahiro Muramatsu
  • Patent number: 6959223
    Abstract: A user creates image data where the user optionally designs an arrangement and a size of each meter in a combination meter on a personal computer screen based on meter designing data DT1 including manufacturing conditions at a user-side meter designing section. Combination meter producing data DT2 is generated from the image data and sent to a combination meter manufacturing data processing section. The processing section derives meter manufacturing data DT3 from the meter producing data DT2. Consequently, the data processing section automatically sends out an order of manufacturing the combination meter to a manufacturer side. The manufacturer side assembles the combination meter according to the meter manufacturing data DT3.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: October 25, 2005
    Assignee: Yazaki Corporation
    Inventors: Masaaki Ogasawara, Masahiro Muramatsu