Patents by Inventor Jun Maekawa

Jun Maekawa 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: 10301123
    Abstract: A transfer device having: a frame; a main conveyer unit having a main conveying passage disposed in a fixed planar area; and a sub conveyer unit having a sub conveying passage disposed in a planar area identical to the planar area of the main conveying passage and conveying an object in a direction crossing a conveying direction of the main conveying passage. A lifting and lowering unit lifts one of the conveying passages to a position above the other conveying passage. A regulating unit is provided for allowing linear upward and downward movement of at least one of the conveyer units. The regulating unit is a plate body or a linear body that bends and/or tilts. A bending direction or a tilting direction is aligned with an upward and downward movement direction of the main conveyer unit or the sub conveyer unit.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: May 28, 2019
    Assignee: Itoh Denki Co., Ltd.
    Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Jun Maekawa
  • Publication number: 20180319605
    Abstract: A transfer device having: a frame; a main conveyer unit having a main conveying passage disposed in a fixed planar area; and a sub conveyer unit having a sub conveying passage disposed in a planar area identical to the planar area of the main conveying passage and conveying an object in a direction crossing a conveying direction of the main conveying passage. A lifting and lowering unit lifts one of the conveying passages to a position above the other conveying passage. A regulating unit is provided for allowing linear upward and downward movement of at least one of the conveyer units. The regulating unit is a plate body or a linear body that bends and/or tilts. A bending direction or a tilting direction is aligned with an upward and downward movement direction of the main conveyer unit or the sub conveyer unit.
    Type: Application
    Filed: July 13, 2018
    Publication date: November 8, 2018
    Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Jun Maekawa
  • Patent number: 10053300
    Abstract: To develop a transfer device which has a lower overall height than that of a conventional technology. A transfer device 1 includes a main conveying unit 3 equipped with main conveying bodies 82, a sub conveying unit 2 equipped with sub conveying bodies 14, a lifting and lowering mechanism 4 which lifts and lowers the main conveying unit 3 and the sub conveying unit 2 such that the respective units 3 and 2 are located at different positions in the up-down direction, and a motor 5 which operates the lifting and lowering mechanism 4. A planar position of the motor 5 resides in a planar area overlapping with the main conveying bodies 82 and the sub conveying bodies 14. A position of the motor 5 in the height direction is set such that a part or the whole of the motor 5 is located above a height of a lower end of a rotational track or a traveling track of any one of the conveying bodies 82 and 14 in a lowered state of any one of the conveying units 3 and 2.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: August 21, 2018
    Assignee: Itoh Denki Co., Ltd.
    Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Jun Maekawa
  • Patent number: 9676563
    Abstract: A long roller conveyor device having a plurality of long rollers and a short roller conveyor device having a plurality of short roller rows each of which includes a plurality of short rollers are used. Rotation axes of the long rollers and rotation axes of the short rollers cross each other. Each of the short roller rows is arranged between the long rollers. On a conveying passage, any of the long rollers and the short roller rows are arranged.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: June 13, 2017
    Assignee: Itoh Denki Co., Ltd.
    Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Jun Maekawa
  • Publication number: 20170001811
    Abstract: To develop a transfer device which has a lower overall height than that of a conventional technology. A transfer device 1 includes a main conveying unit 3 equipped with main conveying bodies 82, a sub conveying unit 2 equipped with sub conveying bodies 14, a lifting and lowering mechanism 4 which lifts and lowers the main conveying unit 3 and the sub conveying unit 2 such that the respective units 3 and 2 are located at different positions in the up-down direction, and a motor 5 which operates the lifting and lowering mechanism 4. A planar position of the motor 5 resides in a planar area overlapping with the main conveying bodies 82 and the sub conveying bodies 14. A position of the motor 5 in the height direction is set such that a part or the whole of the motor 5 is located above a height of a lower end of a rotational track or a traveling track of any one of the conveying bodies 82 and 14 in a lowered state of any one of the conveying units 3 and 2.
    Type: Application
    Filed: January 26, 2015
    Publication date: January 5, 2017
    Applicant: TOH DENKI CO., LTD.
    Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Jun Maekawa
  • Publication number: 20160229644
    Abstract: A long roller conveyor device having a plurality of long rollers and a short roller conveyor device having a plurality of short roller rows each of which includes a plurality of short rollers are used. Rotation axes of the long rollers and rotation axes of the short rollers cross each other. Each of the short roller rows is arranged between the long rollers. On a conveying passage, any of the long rollers and the short roller rows are arranged.
    Type: Application
    Filed: December 2, 2015
    Publication date: August 11, 2016
    Inventors: Kazuo Itoh, Tatsuhiko Nakamura, Jun Maekawa
  • Patent number: 6398506
    Abstract: A centrifugal fluid pump assembly includes a centrifugal fluid pump and a control device. The centrifugal fluid pump comprises a pump section including a housing and an impeller having a first magnetic material and a second magnetic material and accommodated for rotation in the housing and without contacting the housing, an impeller rotational torque generating section including a rotor having a magnet for attracting the first magnetic material of the impeller and a motor for rotating the rotor, and an impeller position control section having an electromagnet for attracting the second magnetic material of the impeller. The control device has a function of limiting an input of a number of rotations of the motor more than a predetermined number of rotations or limiting an input of a motor-driving current having a value more than a predetermined value.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: June 4, 2002
    Assignees: Terumo Kabushiki Kaisha, NTN Corporation
    Inventors: Jun Maekawa, Takayoshi Ozaki
  • Patent number: 6237845
    Abstract: An improved paper container having a deep bottom which is formed from a single sheet of paper blank, and a method of making the same, is provided, which may be used as a drink container, food container or for any application requiring a container having strong, waterproof capabilities. Such a paper container is formed from a paper blank prepared by cutting a sheet of original paper in a predetermined shape, forming numerous ruled lines on the blank, folding along the ruled lines in various detailed steps, and finally curling back an upper face opening edge (serving as the mouth of the container).
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: May 29, 2001
    Assignee: Kuramae Sangyo Co., Ltd.
    Inventors: Masaru Hashimoto, Akira Nagashima, Jun Maekawa, Tomoko Fuse
  • Patent number: 5546947
    Abstract: One ultrasonic endoprobe of this invention has a tubular member formed of a superelastic metal tube and a resin cover covering the outside surface of the superelastic metal tube. An inner assembly comprising an ultrasonic transducer is housed in the tubular member. Another ultrasonic endoprobe of this invention has a composite tubular member formed of a coil, a braid covering the outside surface of the coil, and an outer cover covering the outside surface of the braid. An inner assembly comprising an ultrasonic transducer is housed in the composite tubular member. The ultrasonic endoprobe of this invention has a very small diameter, a high flexibility, a high durability, and a higt torque-transmissibility.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: August 20, 1996
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Hiroyuki Yagami, Naoto Sato, Hideaki Yamashita, Satoshi Nakagawa, Jun Maekawa