Patents by Inventor Hiroshi Kawanaka

Hiroshi Kawanaka 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: 7497051
    Abstract: It is composed of a framework made up entirely of pieces of recycled plastic that basically comprises bearers (1-2), distributed in several sectors along the whole length of the greenhouse and made up of sections (3-4) that are fitted to one another by means of linear connectors (5) which engage on lugs (12-16) and which are in turn joined by means of cross connectors (8) that engage on lugs (17) provided on horizontal sections (6) making up horizontal cross members (7) which brace the framework forming the roof, side walls, front wall and rear wall of the greenhouse. It includes inner spacer clips (23) and intermediate spacer clips (30) that engage on rods (27-27?-27?) securing inner plastic laminar layers (28-28?-28?), between which air chambers are formed that act as thermal insulation for the greenhouse.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: March 3, 2009
    Assignee: Gosei Nakagawa SA
    Inventor: Hiroshi Kawanaka
  • Patent number: 7450018
    Abstract: Temperature sensor device that allows changes of temperature (14) to be detected, as the materials that form said device (1) are deformed, that consists of a body formed by two valves (2) and a structure (8) provided in the hollow interior (7), so that they join together with the aid of a number of bolts (5), it having been envisaged that in one of the bolts (5) and in the structure (8) electrical terminals (4) are positioned, separated a distance (12) from each other, so that when an increase in temperature (14) takes place, it causes the deformation of the components of the device (1), allowing contact of the electrical terminals on having reached the critical temperature (14), and producing the activation of a warning device (13) with the aid of a conductive medium (10)
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: November 11, 2008
    Assignee: Gosei Nakagawa, S.A.
    Inventor: Hiroshi Kawanaka
  • Publication number: 20070157529
    Abstract: It is composed of a framework made up entirely of pieces of recycled plastic that basically comprises bearers (1-2), distributed in several sectors along the whole length of the greenhouse and made up of sections (3-4) that are fitted to one another by means of linear connectors (5) which engage on lugs (12-16) and which are in turn joined by means of cross connectors (8) that engage on lugs (17) provided on horizontal sections (6) making up horizontal cross members (7) which brace the framework forming the roof, side walls, front wall and rear wall of the greenhouse. It includes inner spacer clips (23) and intermediate spacer clips (30) that engage on rods (27-27?-27?) securing inner plastic laminar layers (28-28?-28?), between which air chambers are formed that act as thermal insulation for the greenhouse.
    Type: Application
    Filed: October 28, 2003
    Publication date: July 12, 2007
    Applicant: GOSEI NAKAGAWA SA
    Inventor: Hiroshi Kawanaka
  • Publication number: 20070081574
    Abstract: Temperature sensor device that allows changes of temperature (14) to be detected, as the materials that form said device (1) are deformed, that consists of a body formed by two valves (2) and a structure (8) provided in the hollow interior (7), so that they join together with the aid of a number of bolts (5), it having been envisaged that in one of the bolts (5) and in the structure (8) electrical terminals (4) are positioned, separated a distance (12) from each other, so that when an increase in temperature (14) takes place, it causes the deformation of the components of the device (1), allowing contact of the electrical terminals on having reached the critical temperature (14), and producing the activation of a warning device (13) with the aid of a conductive medium (10)
    Type: Application
    Filed: October 28, 2003
    Publication date: April 12, 2007
    Inventor: Hiroshi Kawanaka
  • Patent number: 5239160
    Abstract: In a laser beam machine tool, the problems of power losses, misalignment, high cost, and other problems associated with moving laser heads are eliminated by using a five-axis table in which a biaxial work holder, capable of rotating and tilting a workpiece is mounted on a three-axis table mechanism. In the three-axis table mechanism, an X-axis table is supported on linear motion bearings in overlapping relationship on a Y-axis table, which is, in turn, supported on linear motion bearings on a vertically movable Z-axis table, which is also supported in linear motion bearings. The X-axis, Y-axis and Z-axis tables are driven by servo motors through ball screws so that backlash is avoided.
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: August 24, 1993
    Assignee: Tsubakimoto Chain Co.
    Inventors: Shunji Sakura, Tatsuya Hirai, Koichi Saeda, Takashi Makino, Hiroshi Kawanaka, Masayuki Tamura
  • Patent number: 5204507
    Abstract: A work rotating device for a laser beam machine utilizes a work-supporting bed rotatable by a speed reducer mounted on a frame adapted to rest on a table of the laser beam machine. In a first embodiment, the speed reducer is fixed to the frame, and the frame has two orthogonal surfaces alternatively engageable with the table so that the axis of rotation of the work can be either vertical or horizontal. In a second embodiment, the speed reducer is manually tiltable in the frame by direct manual rotation of a shaft on which the speed reducer is mounted. In a third embodiment, the speed reducer through which the work is rotated is mounted on a shaft which is connected to a handwheel through another speed reducer. In a fourth embodiment, the speed reducer through which the work is rotated is tilted by a servo motor operating through a speed reducer.
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: April 20, 1993
    Assignee: Tsubakimoto Chain Co.
    Inventors: Koichi Saeda, Shunji Sakura, Hiroshi Kawanaka, Tatsuya Hirai, Hisakazu Sakamoto, Hisaharu Terashima, Takashi Makino, Masayuki Tamura