Patents by Inventor Masahiro Maruyama

Masahiro Maruyama 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: 4815913
    Abstract: An electronic component mounting device for mounting an electronic component onto a circuit-board, is provided with an intermittently rotatable rotary frame, a plurality of elevating members disposed around and along the periphery of the rotary frame at regular intervals so as to be free to move up and down, a plurality of electronic component holding members respectively securely mounted on the elevating members each to hold one electronic component at a time, an index unit for controlling the intermittent rotation of the rotary frame by way of a shaft, a cam mechanism for moving the elevating members up and down with the rotation of the rotary frame, and an operating member for moving any one of the electronic component holding members up and down.
    Type: Grant
    Filed: March 17, 1988
    Date of Patent: March 28, 1989
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kanji Hata, Masahiro Maruyama, Eiji Itemadani
  • Patent number: 4809430
    Abstract: In the mounting of an electronic component, a holding member is rotated by a predetermined angle prior to actual holding of the electronic parts, thereby to detect a center of the holding member from at least two positions of the rotation angle, and the rotation center of the holding member is found by a calculation based on the detected center of the holding member. The position of the electronic parts against a circuit board then is corrected on the basis of a deviation between the position of the rotation center and the center of the holding member.
    Type: Grant
    Filed: June 11, 1987
    Date of Patent: March 7, 1989
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masahiro Maruyama, Kanji Hata, Eiji Itemadani, Masao Iritani
  • Patent number: 4807356
    Abstract: The present invention is a part mounting device for mounting chip parts on a substrate, comprising a linear motor having a columnar yoke with upper and lower ends thereof pivotably supported on the device, permanent magnets disposed in the vicinity of the columnar yoke and forming with the columnar yoke a magnetic circuit, and a bobbin disposed in the vicinity of the columnar yoke and slidable in the columnar direction of the yoke;a chip part holder fixedly secured to the bobbin and having a vacuum nozzle for picking up and holding chip parts;a mechanism connected to said linear motor for controlling the driving of the linear motor for driving the part holder rapidly for moving chip parts quickly from a first position remote from the position of the substrate on which the chip parts are to be mounted to a third position just before the chip parts are on the substrate and then driving the part holder slowly to move the chip parts from the third position to a second position where the chip parts are on the subs
    Type: Grant
    Filed: January 7, 1987
    Date of Patent: February 28, 1989
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masahiro Maruyama, Kazuhiro Mori, Eiji Itemadani, Mikio Hasegawa
  • Patent number: 4793707
    Abstract: A method of optical recognition of a component suction-gripped by a suction nozzle, wherein, when a small component (P) is illuminated by a first illuminator (23), from cone-shaped reflector provided on the base part of a sucking nozzle (3), thereby making a silhouette image of the small component, and when a large component (P') is suction-gripped, a second illuminator, having two-piece movable translucent sheets (25a+25b, which are opened to pass the large component (P') through a thus-opened gap, illuminates the large component (P') to make its silhouette image. By using a lightweight nozzle, a silhouette of the large component is obtainable, assuring high speed mounting of components.
    Type: Grant
    Filed: June 11, 1987
    Date of Patent: December 27, 1988
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kanji Hata, Masahiro Maruyama, Eiji Itemadani
  • Patent number: 4790069
    Abstract: The present invention relates to a method and apparatus for mounting an electronic part (11) on a circuit board (28). When the part is mounted, a distance between the under surface of a part maintaining section (12) and the circuit board (38) is measured. Determination that the electronic part (11) is normally mounted on the circuit board (28) is made by comparing the measured distance with the thickness of the electronic part (11) measured in advance.
    Type: Grant
    Filed: April 28, 1986
    Date of Patent: December 13, 1988
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masahiro Maruyama, Eiji Itemadani, Kazuhiro Mori, Mikio Hasegawa
  • Patent number: 4738386
    Abstract: An electronic component transporting apparatus employing taping cassettes includes a toothed wheel arranged for meshing engagement within successive compartments of a taping cassette after a sealing tape has been stripped from the taping cassette and components contained in compartments thereof have been successively removed, whereby stepwise rotation of the toothed wheel is utilized to produce stepwise advancement of the taping cassette for successive removal of electronic components contained in the compartments. Since it is not necessary to provide a line of perforations along an elongated side of each taping cassette, for use in driving the cassette, each cassette can be made substantially smaller in width than has been possible in the prior art.
    Type: Grant
    Filed: March 18, 1986
    Date of Patent: April 19, 1988
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Eiji Itemadani, Kanji Hata, Masahiro Maruyama
  • Patent number: 4708232
    Abstract: A moving table type work system includes a work table (3) arranged to provide the movements of two degrees of freedom for a work piece (a) to carry out a predetermined work for the work piece (a). Further included are a feeding table (1) which is reciprocated between the work table (3) and a work piece feeding device (2) to transfer the work piece (a) from the work piece feeding device (2) to the work table (3) and a discharging table (4) which is also reciprocated between the work table (3) and a work piece receiving device (5) to transfer the work piece (a) from the work table (3) to the work piece receiving device (5).
    Type: Grant
    Filed: March 19, 1986
    Date of Patent: November 24, 1987
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kanji Hata, Eiji Itemadani, Masahiro Maruyama