Patents Assigned to Okamoto Industries, Inc.
  • Patent number: 5332190
    Abstract: An elastic molding die is composed of an elastomer laminate film, of which the innermost layer is formed of an elastomer not containing fillers. The innermost layer elastomer is preferably an oil-resistant elastomer. Alternatively, an oil-repellent agent may be contained in the innermost layer elastomer. The outer layer may be formed of an elastomer containing fillers. Furthermore, an oil blocking layer can be provided between the inner layer and the outer layer. A master model is dipped in an elastomer solution not containing fillers, heat dried to form a gelled elastomer film, the film is coated with a coagulant, dipped again in an elastomer solution, taken out, gelation treated, and the elastomer film is peeled from the master model to obtain an elastic molding die. In another method, a once-formed hollow elastic molding die is turned inside out, pressed in with a gas to swell, the swollen die is coated with an elastomer solution not containing fillers, heat dried, and turned it again inside out.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: July 26, 1994
    Assignee: Okamoto Industries, Inc.
    Inventors: Akinori Watanabe, Itaru Horiguchi, Tsuguyo Ando, Atsushi Sato
  • Patent number: 5247980
    Abstract: An anti-skid net body for a tire includes a plurality of cords having crossing portions and open portions, with the crossing portions having a flat shape. At least one rope is fixed to an inside portion of the net body. An actional band and a setting band are detachably connected to an outside portion of the net body, wherein the setting band is connected prior to connecting the actional band, thereby tightly fastening the anti-skid net body to a tire.
    Type: Grant
    Filed: April 5, 1990
    Date of Patent: September 28, 1993
    Assignee: Okamoto Industries, Inc.
    Inventors: Osamu Haruda, Shin Imamura, Suguru Hanzawa, Nobuo Amada, Kazuo Kunii, Hidetaka Kobayashi, Shinichi Yano, Muneo Nishiyama
  • Patent number: 5082326
    Abstract: An automatic vehicle seat capable of separately controlling the position or gradient of each portion of a vehicle seat using air bags. Automatic adjustment mechanisms utilizing inflatable air bags are included in the vehicle seat and are capable of adjusting and controlling the height of the seat level, the gradient of a headrest positioned on the seat back, the thigh support of the seat and the mobility of the seat body in a longitudinal direction.
    Type: Grant
    Filed: April 25, 1990
    Date of Patent: January 21, 1992
    Assignee: Okamoto Industries, Inc.
    Inventors: Hiroshi Sekido, Tadashi Sakuma, Toshimichi Hioki
  • Patent number: 5039461
    Abstract: This invention relates more particularly to a process for making a balloon to be used with an endoscope in which, according to the present invention, the balloon is processed of a basic material solution including a natural rubber latex or synthetic rubber latex to which is added a sensitizer to radiation cross-linking so as to act and accelerate its cross-linking effect by irradiating ionizing radiations such as gamma (.gamma.) rays utilizing a Co-60 source upon the rubber latex mixed with the sensitizer to radiation cross-linking, which is characterized in that such the balloon can be provided without any vulcanizing process as in the conventional, process.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: August 13, 1991
    Assignee: Okamoto Industries Inc.
    Inventor: Kyogo Tsushima
  • Patent number: 5029574
    Abstract: This invention relates to a balloon and its process which is used in endoscope for observing, diagnosing and curing diseased parts within blood vessel or tubes, a transparent thin film body is provided in forming an inflating portion incorporatedly with an end of a fixing portion wherein the fixing portion is fixed with the end of endoscope, and the transparent thin film body will protect those attachments of endoscope such as light-guide, object glass, optical fiber and the like which are installed in said the end portion of endoscope, wherein it is useful for observation, diagnosis, cure and the like by means of the inflating portion being inflated by injection of physiological salt solution into the interior of inflating portion, in addition a medical laser beam is irradiated so as to be able to cure, that is, the laser beam is transmissible through the balloon itself which is also seeable through.
    Type: Grant
    Filed: April 14, 1988
    Date of Patent: July 9, 1991
    Assignees: Okamoto Industries, Inc., M & M Co., Ltd.
    Inventors: Yoshiyuki Shimamura, Kyogo Tsushima, Toshihito Seto
  • Patent number: 4965899
    Abstract: A vehicle seat assembly is provided having a inflatable bag positioned within its seat cushion. The bag comprises first and second fabric members joined by a rib fabric member. Each first and second member is a laminate consisting of a meshed middle fabric sandwiched between two thermoplastic resin layers adhered to one another via the meshes. Only the outer peripheries of the two resin layers are in direct sealing contact with one another. An air port is sealingly connected to the first or second member to allow air to be supplied or removed from the bag to change its contour.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: October 30, 1990
    Assignee: Okamoto Industries,Inc.
    Inventors: Hiroshi Sekido, Toshimichi Hioki
  • Patent number: 4723502
    Abstract: Disclosed herein is a rubber boat including a boat body composed of a ring-shaped air barrel and a bottom cloth which is provided to be spread on the lower surface of the air barrel and has a mounting opening for receiving an air mat; and a boat bottom composed of the air mat. The air mat is fitted into the mounting opening, and the peripheral portion of the air mat and the marginal portion around the mounting opening are connected together by a connecting cord in such a manner as to define a drain space therebetween.
    Type: Grant
    Filed: December 30, 1986
    Date of Patent: February 9, 1988
    Assignee: Okamoto Industries, Inc.
    Inventor: Tadayoshi Sayama