Patents by Inventor Ryosuke SAGATA

Ryosuke SAGATA 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: 10047317
    Abstract: Disclosed is a fluoropolyether compound comprising a C4-10 aliphatic hydrocarbon chain present in the middle of the fluoropolyether compound and at least two perfluoropolyethers.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: August 14, 2018
    Assignee: Moresco Corporation
    Inventors: Ryosuke Sagata, Tsuyoshi Shimizu, Haruo Kasai
  • Patent number: 10047316
    Abstract: The disclosure provides a fluoropolyether compound represented by formula (1): R1—CH2—R2—CH2—R3 wherein R1 is C1-C10 alkoxy; R2 is —(CF2)pO(CF2O)x(CF2CF2O)y(CF2CF2CF2O)z(CF2CF2CF2CF2O)w(CF2)p—; x and y are each a real number of 0 to 30; z is a real number of 0 to 30; w is a real number of 0 to 20; p is an integer of 1 to 3; R3 is —OCH2CH(OH)CH2OH, —OCH2CH(OH)CH2OCH2CH(OH)CH2OH, —O(CH2)mOH, or —OCH2(OH)CHCH2—OC6H4—R4; m is an integer of 2 to 8; and R4 is hydrogen, C1-C4 alkoxy, amino, or an amide residue; and also provides a lubricant having the compound and a magnetic disk.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: August 14, 2018
    Assignee: Moresco Corporation
    Inventors: Ryosuke Sagata, Haruo Kasai
  • Patent number: 9911447
    Abstract: A compound of the formula (1), lubricant containing the compound and magnetic disk R1—C6H4O—CH2CH(OH)CH2OCH2—R2—CH2—O—CH2CH(OH)CH2—OC6H4—R1 ??(1) wherein R1 is alkoxyl having 1 to 4 carbon atoms, amino or amido, R2 is —CF2CF2O(CF2CF2CF2O)zCF2CF2— or —CF2CF2CF2O(CF2CF2CF2CF2O)nCF2CF2CF2—, z is a real number of 1 to 15, n is a real number of 0 to 4.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: March 6, 2018
    Assignee: MORESCO CORPORATION
    Inventor: Ryosuke Sagata
  • Publication number: 20170260472
    Abstract: Disclosed is a fluoropolyether compound comprising a C4-10 aliphatic hydrocarbon chain present in the middle of the fluoropolyether compound and at least two perfluoropolyethers.
    Type: Application
    Filed: November 24, 2015
    Publication date: September 14, 2017
    Applicant: MORESCO CORPORATION
    Inventors: Ryosuke SAGATA, Tsuyoshi SHIMIZU, Haruo KASAI
  • Publication number: 20170152456
    Abstract: The disclosure provides a fluoropolyether compound represented by formula (1): R1—CH2—R2—CH2—R3 wherein R1 is C1-C10 alkoxy; R2 is —(CF2)pO(CF2O)x(CF2CF2O)y(CF2CF2CF2O)z(CF2CF2CF2CF2O)w(CF2)p—; x and y are each a real number of 0 to 30; z is a real number of 0 to 30; w is a real number of 0 to 20; p is an integer of 1 to 3; R3 is —OCH2CH(OH)CH2OH, —OCH2CH(OH)CH2OCH2CH(OH)CH2OH, —O(CH2)mOH, or —OCH2(OH)CHCH2—OC6H4—R4; m is an integer of 2 to 8; and R4 is hydrogen, C1-C4 alkoxy, amino, or an amide residue; and also provides a lubricant having the compound and a magnetic disk.
    Type: Application
    Filed: June 22, 2015
    Publication date: June 1, 2017
    Applicant: MORESCO CORPORATION
    Inventors: Ryosuke SAGATA, Haruo KASAI
  • Publication number: 20150371672
    Abstract: A compound of the formula (1), lubricant containing the compound and magnetic disk R1—C6H4O—CH2CH(OH)CH2OCH2—R2—CH2—O—CH2CH(OH)CH2—OC6H4—R1 ??(1) wherein R1 is alkoxyl having 1 to 4 carbon atoms, amino or amido, R2 is —CF2CF2O(CF2CF2CF2O)zCF2CF2— or —CF2CF2CF2O(CF2CF2CF2CF2O)nCF2CF2CF2—, z is a real number of 1 to 15, n is a real number of 0 to 4.
    Type: Application
    Filed: October 9, 2014
    Publication date: December 24, 2015
    Inventor: Ryosuke SAGATA
  • Patent number: 8734966
    Abstract: A compound of the formula (1), lubricant containing the compound and magnetic disk R1—C6H4O—CH2CH(OH)CH2OCH2—R2—CH2—O—R3??(1) wherein R1 is hydrogen, alkoxyl having 1 to 4 carbon atoms, amino or amido, R2 is —CF2O(CF2CF2O)x(CF2O)yCF2—, —CF2CF2O(CF2CF2CF2O)z—CF2CF2— or —CF2CF2CF2O(CF2CF2CF2CF2O)nCF2CF2CF2—, x and y are each an integer of 0 to 15, z is an integer of 1 to 15, n is an integer of 0 to 4, R3 is —CH2CH(OH)CH2OH, —CH2CH(OH)CH2OCH2CH(OH)CH2OH or —(CH2)mOH, m is an integer of 2 to 6.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: May 27, 2014
    Assignee: Moresco Corporation
    Inventors: Ryosuke Sagata, Tsuyoshi Shimizu, Tomomi Hatta, Nagayoshi Kobayashi
  • Publication number: 20140065443
    Abstract: A compound of the formula (1), lubricant containing the compound and magnetic disk (P3N3)—[R1-R2]6??(1) wherein R1 is —OCH2CF2O(CF2CF2O)x(CF2O)yCF2CH2O—, or —OCH2CF2CF2O(CF2CF2CF2O)ZCF2CH2O— or —OCH2CF2CF2CF2O(CF2CF2CF2CF2O)nCF2CF2CF2CH2O—, x and y are each an integer of 0 to 15, z is an integer of 1 to 15, n is an integer of 0 to 20, R2 is hydrogen, hydroxyalkyl, amino or amido.
    Type: Application
    Filed: July 24, 2013
    Publication date: March 6, 2014
    Applicant: MORESCO Corporation
    Inventors: Ryosuke SAGATA, Nagayoshi KOBAYASHI