Patents by Inventor Hiromu Sakai

Hiromu Sakai 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: 8432248
    Abstract: To provide manufacturing method for resistor that uses metal plate as resistance body, which can obtain desired accurate resistance value without trimming resistance body even if product becomes small. The method comprises; in method for manufacturing an unit resistor that has a pair of electrodes separated by insulation film, from resistor material that is provided with a metal plate consisting of resistance material, an insulation film pattern formed on the metal plate, and an electrode region formed besides area where insulation film pattern has been formed, by piercing predetermined piercing area, wherein length E of insulation film pattern is longer than width w of piercing area, wherein width L of insulation film pattern extends or narrows along direction of length E of insulation film pattern, and wherein position X of piercing area is adjusted in extent and in direction of length E of insulation film pattern.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: April 30, 2013
    Assignee: KOA Corporation
    Inventors: Hiromu Sakai, Hitoshi Amemiya, Takanori Kikuchi
  • Publication number: 20120223807
    Abstract: To provide manufacturing method for resistor that uses metal plate as resistance body, which can obtain desired accurate resistance value without trimming resistance body even if product becomes small. The method comprises; in method for manufacturing an unit resistor that has a pair of electrodes separated by insulation film, from resistor material that is provided with a metal plate consisting of resistance material, an insulation film pattern formed on the metal plate, and an electrode region formed besides area where insulation film pattern has been formed, by piercing predetermined piercing area, wherein length E of insulation film pattern is longer than width w of piercing area, wherein width L of insulation film pattern extends or narrows along direction of length E of insulation film pattern, and wherein position X of piercing area is adjusted in extent and in direction of length E of insulation film pattern.
    Type: Application
    Filed: February 22, 2012
    Publication date: September 6, 2012
    Applicant: KOA CORPORATION
    Inventors: Hiromu Sakai, Hitoshi Amemiya, Takanori Kikuchi
  • Patent number: 4523448
    Abstract: A method for continuously producing a core member to be embedded within a trim, comprises the continuous steps of forming slits in a band-shaped metallic plate by means of slitting rolls, elongating the slit metallic plate by means of elongating rolls and pressing the elongated metallic plate by means of finishing rolls.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: June 18, 1985
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Hiromu Sakai, Sazo Ezaki, Atsuo Kikuchi
  • Patent number: 4407689
    Abstract: A laminated member comprising a metal foil or sheet (1) and a thermoplastic resin film (4) bonded together with an adhesive selected from a carboxyl group-containing polyolefin and a polyolefin based resin prepared by heat-compounding a carboxyl group-containing polyolefin and a metal compound is heated at a higher temperature than the melting temperature of the adhesive and pressed using a heating roll (3) and a nip roll (6). The laminated member is then cooled at the heat distortion temperature of the adhesive or at a temperature higher than the heat distortion temperature while applying a pressure of at least 0.2 kg/cm.sup.2 with a cooling roll (10) and a nip roll (11).
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: October 4, 1983
    Assignee: Toyo Ink Manufacturing Co., Ltd.
    Inventors: Akira Ohtsuki, Hirokichi Ishino, Hiromu Sakai, Susumu Tsuchiko, Kazuo Tawara, Takahiko Yamasoba
  • Patent number: 4389438
    Abstract: A process for the preparation of laminates comprising the steps of (1) putting a thermoplastic resin sheet or film and a metal foil or sheet one upon another with a specific polyolefin type resin being interposed therebetween, (2) heating the thus interposed specific polyolefin type resin to a temperature not lower than the melting point of the specific polyolefin type resin to obtain an intermediate laminate and (3) laminating at least one of thermoplastic sheets or films and paper on the metal foil or sheet side of said intermediate laminate using therebetween an ordinary adhesive not requiring heating at a temperature not lower than said melting point at the time of lamination thereby to obtain a desired laminate. In one embodiment, this invention also relates to a foodstuff packaging container wherein the innermost layer is a polyolefin resin sheet or film.
    Type: Grant
    Filed: July 10, 1981
    Date of Patent: June 21, 1983
    Assignee: Toyo Ink Manufacturing Co., Ltd.
    Inventors: Akira Ohtsuki, Hirokichi Ishino, Hiromu Sakai, Takahiko Yamasoba, Susumu Tsuchiko, Takashi Yoshino
  • Patent number: 4358493
    Abstract: Cans prepared by bonding and/or seaming together the to-be-bonded portions of can materials with the aid of an adhesive, characterized in that the adhesive comprises at least one modified polyolefin selected from carboxyl group-containing polyolefins and metal compound-incorporated carboxyl group-containing polyolefins.
    Type: Grant
    Filed: January 29, 1981
    Date of Patent: November 9, 1982
    Assignee: Toyo Ink Manufacturing Co., Ltd.
    Inventors: Akira Ohtsuki, Hirokichi Ishino, Hiromu Sakai, Takahiro Yamasoba, Susumu Tsuchiko, Yasuyuki Ishiwatari, Atsuhiro Yamamoto