Patents by Inventor Kazuhiko Tomaru

Kazuhiko Tomaru 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: 7484556
    Abstract: A heat dissipating member which is disposed between a heat generating electronic component which when operated generates heat and reaches a temperature higher than room temperature and a heat dissipating component is characterized in that the heat dissipating member is non-fluid in a room temperature state prior to operation of the electronic component and acquires a low viscosity, softens or melts under heat generation during operation of the electronic component to fluidize at least a surface thereof so as to fill between the electronic component and the heat dissipating component without leaving any substantial voids, and the heat dissipating member is formed of a composition comprising a silicone resin and a heat conductive filler.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: February 3, 2009
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kunihiko Mita, Kazuhiko Tomaru, Yoshitaka Aoki, Hironao Fujiki
  • Patent number: 7417078
    Abstract: An electromagnetic wave absorbing heat conductive composition is used to form an electromagnetic wave absorbing heat dissipating article that is placed between a heat generating electronic component which, when operated, generates heat, reaches a temperature higher than room temperature and acts as an electromagnetic wave generating source, and a heat dissipating component. The composition is non-fluid at room temperature prior to operation of the electronic component, but acquires a low viscosity, softens or melts under heat generation during operation of the electronic component, to fluidize at least a surface of the composition so that the composition substantially fills any gaps between the electronic component and the heat-dissipating component.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: August 26, 2008
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hironao Fujiki, Kazuhiko Tomaru, Ikuo Sakurai, Akio Suzuki, Kunihiko Mita
  • Publication number: 20070023179
    Abstract: A heat dissipating member which is disposed between a heat generating electronic component which when operated generates heat and reaches a temperature higher than room temperature and a heat dissipating component is characterized in that the heat dissipating member is non-fluid in a room temperature state prior to operation of the electronic component and acquires a low viscosity, softens or melts under heat generation during operation of the electronic component to fluidize at least a surface thereof so as to fill between the electronic component and the heat dissipating component without leaving any substantial voids, and the heat dissipating member is formed of a composition comprising a silicone resin and a heat conductive filler.
    Type: Application
    Filed: September 27, 2006
    Publication date: February 1, 2007
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kunihiko Mita, Kazuhiko Tomaru, Yoshitaka Aoki, Hironao Fujiki
  • Patent number: 7016196
    Abstract: A heat dissipating structure for a heat generating electronic component is characterized by comprising a heat dissipating sheet including a metal sheet and a heat conductive member having adhesion stacked thereon between the heat generating electronic component and a heat dissipating member, wherein the metal sheet is connected to the heat generating electronic component, and the heat conductive member having adhesion is connected to the heat dissipating member.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: March 21, 2006
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kazuhiko Tomaru, Kunihiko Mita, Tsutomu Yoneyama
  • Patent number: 6896824
    Abstract: A heat-softening heat-radiation sheet including a polyolefin-based heat-conductive composition which comprises a polyolefin and a heat-conductive filler, has a softening point of 40° C. or above, has a thermal conductivity of 1.0 W/mK or higher, has a viscosity at 80° C. of from 1×102 to 1×105 Pa·s and has a plasticity at 25° C. in the range of from 100 to 700. This heat-radiation sheet which is in the form of a solid sheet at room temperature, can readily be attached to or detached from electronic components and a heat sink, is capable of softening by the heat generated during operation of electronic components, to have the interfacial contact thermal resistance at a negligible level, and has a superior heat-radiation performance.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: May 24, 2005
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kazuhiko Tomaru, Tsutomu Yoneyama, Ryuichi Handa
  • Patent number: 6760214
    Abstract: A wafer chuck used in manufacturing processes of integrated semiconductors and liquid crystal panels, more particularly, an electrostatic silicone rubber chuck for ion injectors used in an ion injection process.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: July 6, 2004
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kazuhiko Tomaru, Ryuichi Handa, Tsutomu Yoneyama
  • Publication number: 20040094293
    Abstract: A heat dissipating member which is disposed between a heat generating electronic component which when operated generates heat and reaches a temperature higher than room temperature and a heat dissipating component is characterized in that the heat dissipating member is non-fluid in a room temperature state prior to operation of the electronic component and acquires a low viscosity, softens or melts under heat generation during operation of the electronic component to fluidize at least a surface thereof so as to fill between the electronic component and the heat dissipating component without leaving any substantial voids, and the heat dissipating member is formed of a composition comprising a silicone resin and a heat conductive filler.
    Type: Application
    Filed: July 17, 2003
    Publication date: May 20, 2004
    Inventors: Kunihiko Mita, Kazuhiko Tomaru, Yoshitaka Aoki, Hironao Fujiki
  • Publication number: 20040057206
    Abstract: A heat dissipating structure for a heat generating electronic component is characterized by comprising a heat dissipating sheet including a metal sheet and a heat conductive member having adhesion stacked thereon between the heat generating electronic component and a heat dissipating member, wherein the metal sheet is connected to the heat generating electronic component, and the heat conductive member having adhesion is connected to the heat dissipating member.
    Type: Application
    Filed: July 17, 2003
    Publication date: March 25, 2004
    Inventors: Kazuhiko Tomaru, Kunihiko Mita, Tsutomu Yoneyama
  • Publication number: 20040054029
    Abstract: An electromagnetic wave absorbing heat conductive composition is used to form an electromagnetic wave absorbing heat dissipating article that is placed between a heat generating electronic component which, when operated, generates heat, reaches a temperature higher than room temperature and acts as an electromagnetic wave generating source, and a heat dissipating component. The composition is non-fluid at room temperature prior to operation of the electronic component, but acquires a low viscosity, softens or melts under heat generation during operation of the electronic component, to fluidize at least a surface of the composition so that the composition substantially fills any gaps between the electronic component and the heat-dissipating component.
    Type: Application
    Filed: July 17, 2003
    Publication date: March 18, 2004
    Inventors: Hironao Fujiki, Kazuhiko Tomaru, Ikuo Sakurai, Akio Suzuki, Kunihiko Mita
  • Patent number: 6563195
    Abstract: A dustproof covering film-attached wafer support comprising a base, a silicone rubber layer substantially uniform in thickness and integrated with the base and a dustproof covering film, with the dustproof covering film is attached to the silicone rubber layer in a state that the peel strength between the dustproof covering film and the silicone rubber layer is from 5 to 500 g/25 mm, thereby enabling the covering film to be peeled apart as the need arises; and a production method for such a wafer support.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: May 13, 2003
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kazuhiko Tomaru, Tsutomu Yoneyama, Ryuichi Handa
  • Patent number: 6545267
    Abstract: Wafer holders disposed in the target chamber of an ion implantation apparatus, with each of the wafer holders comprising a wafer mount and an electrically conductive elastic body that is laid on the wafer mount and has a surface for holding a wafer thereon.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: April 8, 2003
    Assignees: Applied Materials, Inc., Shin-Etsu Chemical Co., Ltd.
    Inventors: Ryuichi Miura, Kazuhiko Tomaru, Tsutomu Yoneyama, Ryuichi Handa
  • Patent number: 6501212
    Abstract: A method of insulating a cathode ray tube and an electrical insulator composition for a cathode ray tube enabling an electrical insulator to be produced without material loss and enabling improvement of the bonding strength between a stem and a stem base and the insulation property between stem pins, when attaching to a stem, which is provided at the cathode ray tube and has a tip and stem pins projecting therefrom, an insulating stem base, which comprises a base through which pin through holes are formed and has provided projecting from the front surface thereof a tip holder, in a state with the stem pins inserted through the pin through holes and the tip held in the tip holder, said method comprising the steps of molding an electrical insulator composition comprising an uncured self-adhesive silicone rubber into a predetermined sheet shape by using a transfer mold to obtain an electrical insulator, arranging the electrical insulator in a state extending from the positions of the pin through holes on the bac
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: December 31, 2002
    Assignee: Sony Corporation
    Inventors: Takashi Setsuda, Hirokazu Kanno, Kazuhiko Tomaru, Tsutomu Yoneyama, Hisaharu Yamaguchi
  • Publication number: 20020066883
    Abstract: A heat-softening heat-radiation sheet including a polyolefin-based heat-conductive composition which comprises a polyolefin and a heat-conductive filler, has a softening point of 40° C. or above, has a thermal conductivity of 1.0 W/mK or higher, has a viscosity at 80° C. of from 1×102 to 1×105 Pa.s and has a plasticity at 25° C. in the range of from 100 to 700. This heat-radiation sheet which is in the form of a solid sheet at room temperature, can readily be attached to or detached from electronic components and a heat sink, is capable of softening by the heat generated during operation of electronic components, to have the interfacial contact thermal resistance at a negligible level, and has a superior heat-radiation performance.
    Type: Application
    Filed: October 11, 2001
    Publication date: June 6, 2002
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kazuhiko Tomaru, Tsutomu Yoneyama, Ryuichi Handa
  • Publication number: 20010050836
    Abstract: An electrostatic silicone rubber chuck for ion injectors, which comprises a metallic substrate, a first insulating layer, a pattern of conductive trace or traces formed as an electrode of single or dual polarity and a second insulating layer: with at least the second insulating layer being produced from cured matter of a thermally conductive silicone rubber composition comprising the following components (A) to (D);
    Type: Application
    Filed: April 10, 2001
    Publication date: December 13, 2001
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Kazuhiko Tomaru, Ryuichi Handa, Tsutomu Yoneyama
  • Patent number: 6106350
    Abstract: A method of insulating a cathode ray tube and enabling an electrical insulator to be produced without material loss and enabling improvement of the bonding strength between a stem and a stem base, which comprises a base through which pin through holes are formed and has provided projecting from the front surface thereof a tip holder, in a state with the stem pins inserted through the pin through holes and the tip held in the tip holder, said method comprising the steps of molding an electrical insulator composition comprising an uncured self-adhesive silicone rubber into a predetermined sheet shape by using a transfer mold to obtain an electrical insulator, arranging the electrical insulator in a state extending from the positions of the pin through holes on the back of the base of the stem base to the tip holder and adhering it to the back of the base, folding the portion of the electrical insulator extending to the tip holder to the inside surface of the tip holder, and attaching the stem base to the stem.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: August 22, 2000
    Assignees: Sony Corporation, Shin-Etsu Chemical Co., Ltd.
    Inventors: Takashi Setsuda, Hirokazu Kanno, Kazuhiko Tomaru, Tsutomu Yoneyama, Hisaharu Yamaguchi
  • Patent number: 6071630
    Abstract: An electrostatic chuck comprises a metallic plate, a first insulating layer formed on the metallic plate and composed of a ceramic material, an electrically conductive electrode pattern formed on the first insulating layer, and a second insulating layer formed on the conductive electrode pattern and made of an elastomer. Alternatively, the first and second insulating layers may be each made of a thermally conductive silicone rubber provided that the thermally conductive silicone rubber for the second insulating layer should have a hardness of 85 or below a surface roughness of 5 .mu.m or below.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: June 6, 2000
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kazuhiko Tomaru, Ryuichi Handa, Tsutomu Yoneyama
  • Patent number: 5364676
    Abstract: A casing of a fixed disc memory unit consisting of a case body and a covering member jointly forming the casing with an air-tight sealing of a rubbery gasket therebetween can be imparted with very reliable moisture-proofness of sealing by forming the rubbery gasket by the FIPG method using a curable rubber composition comprising: (a) a fluorocarbon-containing organosiloxane polymer containing vinyl groups and consisting of the recurring units each represented by the general formula--[--SiMe.sub.2 --CH.sub.2 CH.sub.2 --Rf--CH.sub.2 CH.sub.2 --SiMe.sub.2 --O--]--,in which Rf is a fluorinated divalent polyether group; (b) an organohydrogenpolysiloxane or a fluorocarbon-containing organohydrogensiloxane having, in a molecule, at least two hydrogen atoms directly bonded to the silicon atoms; and (c) a catalytic compound in an amount sufficient to effect the addition reaction between the components (a) and (b).
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: November 15, 1994
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Toshio Takago, Kazuhiko Tomaru, Noboru Shimamoto, Hiroshi Inomata, Shinichi Sato
  • Patent number: 5326611
    Abstract: A cover-gasket assembly for a hard disk device which comprises a gasket applied to a predetermined position of a cover for the hard disk device, wherein the gasket is formed essentially of a cured product of a fluorosilicone rubber composition. The assembly is particularly excellent in sealing property against permeation of water vapor, and can be used extremely effectively for hard disk devices for handy office-automation apparatuses such as laptop or pocket-size personal computers, word processors and the like which are expected to be used under various temperature and humidity conditions.
    Type: Grant
    Filed: April 9, 1993
    Date of Patent: July 5, 1994
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hirofumi Kishita, Kazuhiko Tomaru, Noboru Shimamoto, Kouichi Yamaguchi, Shinichi Sato
  • Patent number: 5322557
    Abstract: A primer composition comprising (A) a fluorinated alkoxysilane containing an epoxy group, (B) an organic titanium or aluminum compound, and (C) a solvent is effective in bonding fluorinated organic polymers to metal and glass members.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: June 21, 1994
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hiroshi Inomata, Yasuo Tarumi, Kazuhiko Tomaru
  • Patent number: 5309840
    Abstract: An impasto pattern representing a desired character or mark is formed on a stretchable support, typically sportswear fabric by extruding a high viscosity liquid silicone rubber composition to the support through a nozzle of a robotic applicator having a picture drawing function to form a predetermined pattern of impasto extrudate on the support, and curing the extrudate.
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: May 10, 1994
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Toru Takamura, Tsutomu Yoneyama, Kazuhiko Tomaru