Patents by Inventor Mami Kotera

Mami Kotera 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).

  • Fluorinated organosilicon compounds and process for the preparation thereof
    Patent number: 6197989
    Abstract: A fluorine-containing organic silicon compound represented by the following formula 1, which is useful as various industrial base materials required to have performances such as water and oil repellency, anti-fouling properties or release properties and as raw materials therefor.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: March 6, 2001
    Assignees: Asahi Glass Company Ltd., OSi Specialties, Inc.
    Inventors: Yutaka Furukawa, Mami Kotera, Seisaku Kumai, Robert E. Ruckle, Jr., Gerald J. Murphy
  • Method for producing fluorine-containing silicone compound
    Patent number: 5914422
    Abstract: A method for producing a fluorine-containing silicone compound, which comprises subjecting a compound of the following formula (I) and a hydrosilicone compound having at least one hydrogen atom bonded to a silicon atom to hydrosilylation to obtain a fluorine-containing silicone compound having a R.sup.f --Q--CR.sup.1 R.sup.2 CR.sup.3 HCR.sup.4 R.sup.5 -- group bonded to the silicon atom:R.sup.f --Q--CR.sup.1 R.sup.2 CR.sup.3 .dbd.CR.sup.4 R.sup.5(I)wherein R.sup.f is a monovalent fluorine-containing organic group, Q is a single bond or a bivalent organic group containing no fluorine atom, and each of R.sup.1 to R.sup.5 which are independent of one another, is a hydrogen atom or a monovalent organic group.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: June 22, 1999
    Assignee: Asahi Glass Company Ltd.
    Inventors: Yutaka Furukawa, Mami Kotera, Seisaku Kumai, Kazuya Oharu, Toshihiko Toma
  • Method for producing a fluorine-containing silicone compound
    Patent number: 5834614
    Abstract: A method for producing a fluorine-containing silicone compound, which comprises subjecting a fluorine-containing unsaturated compound of the following formula (1) and a hydrosilicone compound having at least one hydrogen atom bonded to a silicon atom to hydrosilylation in the presence of a catalyst to obtain a fluorine-containing silicone compound having a R.sup.f --Q--CR.sup.1 R.sup.2 --CHR.sup.3 --CR.sup.4 R.sup.5 -- group bonded to the silicon atom:R.sup.f --Q--CR.sup.1 R.sup.2 --CR.sup.3 .dbd.CR.sup.4 R.sup.5( 1)wherein R.sup.f is a monovalent fluorine-containing organic group, Q is a single bond or a bivalent organic group, and each of R.sup.1 to R.sup.5 which are independent of one another, is a hydrogen atom or a monovalent organic group, wherein the hydrosilylation is carried out substantially in the absence of a solvent.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: November 10, 1998
    Assignees: Asahi Glass Company Ltd., OSi Specialties Incorporated
    Inventors: Yutaka Furukawa, Mami Kotera, Seisaku Kumai, Gerald J. Murphy
  • Method for producing flourine-containing silicone compound
    Patent number: 5728903
    Abstract: A method for producing a fluorine-containing silicone compound, which comprises subjecting a compound of the following formula (I) and a hydrosilicone compound having at least one hydrogen atom bonded to a silicon atom to hydrosilylation to obtain a fluorine-containing silicone compound having a R.sup.f --Q--CR.sup.1 R.sup.2 CR.sup.3 HCR.sup.4 R.sup.5 -- group bonded to the silicon atom:R.sup.f --Q--CR.sup.1 R.sup.2 CR.sup.3 .dbd.CR.sup.4 R.sup.5(I)wherein R.sup.f is a monovalent fluorine-containing organic group, Q is a single bond or a bivalent organic group containing no fluorine atom, and each of R.sup.1 to R.sup.5 which are independent of one another, is a hydrogen atom or a monovalent organic group.
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: March 17, 1998
    Assignee: Asahi Glass Company Ltd.
    Inventors: Yutaka Furukawa, Mami Kotera, Seisaku Kumai, Kazuya Oharu, Toshihiko Toma
  • Method for producing fluorine-containing silicone compound
    Patent number: 5663399
    Abstract: A method for producing a fluorine-containing silicone compound, which comprises subjecting a compound of the following formula (I) and a hydrosilicone compound having at least one hydrogen atom bonded to a silicon atom to hydrosilylation to obtain a fluorine-containing silicone compound having a R.sup.f --Q--CR.sup.1 R.sup.2 CR.sup.3 HCR.sup.4 R.sup.5 -- group bonded to the silicon atom:R.sup.f --Q--CR.sup.1 R.sup.2 CR.sup.3 =CR.sup.4 R.sup.5 (I)wherein R.sup.f is a monovalent fluorine-containing organic group, Q is a single bond or a bivalent organic group containing no fluorine atom, and each of R.sup.1 to R.sup.5 which are independent of one another, is a hydrogen atom or a monovalent organic group.
    Type: Grant
    Filed: October 25, 1995
    Date of Patent: September 2, 1997
    Assignee: Asahi Glass Company Ltd.
    Inventors: Yutaka Furukawa, Mami Kotera, Seisaku Kumai, Kazuya Oharu, Toshihiko Toma