Patents by Inventor Haruo Kasai

Haruo Kasai 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
  • 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: 20120295134
    Abstract: An object of the present invention is to provide a compound (lubricant) that exhibits better fluidity and adsorbability on the surface of a disk than conventional end-modified compounds, that is thermally stable, and that is obtained by introducing an additional functional group to the end(s) of a perfluoropolyether having a hydroxy group. The present invention relates to a lubricant comprising a perfluoropolyether compound containing, in the molecule, a group represented by Formula (2), wherein R represents a hydrogen, a C1-10 alkyl group, or an alkoxy group, and n is 1 or 2.
    Type: Application
    Filed: February 10, 2010
    Publication date: November 22, 2012
    Applicant: MORESCO CORPORATION
    Inventors: Akinobu Wakabayashi, Haruo Kasai
  • Publication number: 20120058931
    Abstract: Munc18 proteins facilitate formation of SNARE complexes known to mediate membrane fusion. Much is known about the fusion of secretory granule (SG) to plasma membrane, mediated by Munc18a-SNARE complexes. It has been found that another Munc18 isoform, Munc18b, mediates SG-SG fusion which causes potentiation of secretion. The present invention has identified specific site mutations within Munc18b which further increased (called KR mutant) or reduced (called E59K mutant) SG-SG fusion compared to wild type (WT) Munc18b, causing amplification or reduction of insulin secretion, respectively. Compounds identified that mimic the actions of Munc18b-WT and Munc18b-KR mutant which increase SG-SG fusion, and those which mimic Munc18b-E59K mutant that block SG-SG fusion, are useful for treating and/or preventing diseases and/or conditions, whose underlying bases are a deficiency or excess of SG-SG fusion, respectively.
    Type: Application
    Filed: September 3, 2010
    Publication date: March 8, 2012
    Inventors: Haruo Kasai, Noriko Takahashi, Vesa Olkkonen, Herbert Y. Gaisano, Patrick Lam
  • Publication number: 20110256425
    Abstract: A magnetic disk or magnetic head having a lubrication film of a lubricant bonded in a ratio of at least 99% to a protective carbon film on a magnetic disk member, the lubricant containing a perfluoropolyether compound (Q) wherein A is alkyl having 1 to 10 carbon atoms, fluoroalkyl having 1 to 10 carbon atoms, F(CF2CF2CF2O)m-CF2CF2—, F[CF(CF3)CF2O]n-CF(CF3)— or a group of the formula (a) given below, B is hydrogen, alkyl having 1 to 10 carbon atoms, fluoroalkyl having 1 to 10 carbon atoms, F(CF2CF2CF2O)m-CF2CF2—CH2—, F[CF(CF3)CF2O]n-CF(CF3)—CH2— or a group of the formula (b) given below wherein R is hydrogen, alkyl having 1 to 10 carbon atoms, fluoroalkyl having 1 to 10 carbon atoms, F(CF2CF2CF2O)m-CF2CF2—CH2— or F[CF(CF3)CF2O]n-CF(CF3)—CH2—, Z is —CF2O(CF2CF2O)rCF2—, —CF2O(CF2CF2O)p(CF2O)qCF2— or —CF2CF2O(CF2CF2CF2O)m-CF2CF2— wherein A1 is alkyl having 1 to 10 carbon atoms, fluoroalkyl having 1 to 10 carbon atoms, F(CF2CF2CF2O)m-CF2CF2— or F[CF(CF3)CF2O]n-CF(CF3)—, Z is the same as defined above,
    Type: Application
    Filed: November 19, 2008
    Publication date: October 20, 2011
    Inventors: Haruo Kasai, Akinobu Wakabayashi
  • Patent number: 6940692
    Abstract: A process is provided for synthesizing metal salts of perfluorinated polyethers containing at least one carboxylic acid group. The polymeric salts so provided are effective as anti-wetting and corrosion-protective agents. The metal salts of perfluorinated polyether acids may be used to prepare corrosion-protected substrates, including magnetic recording disks and magnetic recording heads.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: September 6, 2005
    Assignee: International Business Machines
    Inventors: Qing Dai, Paul Haruo Kasai, Wing Tsang Tang
  • Patent number: 6932890
    Abstract: A process is provided for synthesizing metal salts of perfluorinated polyethers containing at least one carboxylic acid group. The polymeric salts so provided are effective as anti-wetting and corrosion-protective agents. The metal salts of perfluorinated polyether acids may be used to prepare corrosion-protected substrates, including magnetic recording disks and magnetic recording heads.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: August 23, 2005
    Assignee: International Business Machines Corporation
    Inventors: Qing Dai, Paul Haruo Kasai, Wing Tsang Tang
  • Patent number: 6916955
    Abstract: A process is provided for synthesizing metal salts of perfluorinated polyethers containing at least one carboxylic acid group. The polymeric salts so provided are effective as anti-wetting and corrosion-protective agents. The metal salts of perfluorinated polyether acids may be used to prepare corrosion-protected substrates, including magnetic recording disks and magnetic recording heads.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: July 12, 2005
    Assignee: International Business Machines
    Inventors: Qing Dai, Paul Haruo Kasai, Wing Tsang Tang
  • Publication number: 20040023033
    Abstract: A process is provided for synthesizing metal salts of perfluorinated polyethers containing at least one carboxylic acid group. The polymeric salts so provided are effective as anti-wetting and corrosion-protective agents. The metal salts of perfluorinated polyether acids may be used to prepare corrosion-protected substrates, including magnetic recording disks and magnetic recording heads.
    Type: Application
    Filed: July 31, 2003
    Publication date: February 5, 2004
    Inventors: Qing Dai, Paul Haruo Kasai, Wing Tsang Tang
  • Publication number: 20040023076
    Abstract: A process is provided for synthesizing metal salts of perfluorinated polyethers containing at least one carboxylic acid group. The polymeric salts so provided are effective as anti-wetting and corrosion-protective agents. The metal salts of perfluorinated polyether acids may be used to prepare corrosion-protected substrates, including magnetic recording disks and magnetic recording heads.
    Type: Application
    Filed: July 31, 2003
    Publication date: February 5, 2004
    Inventors: Qing Dai, Paul Haruo Kasai, Wing Tsang Tang
  • Publication number: 20040021984
    Abstract: A process is provided for synthesizing metal salts of perfluorinated polyethers containing at least one carboxylic acid group. The polymeric salts so provided are effective as anti-wetting and corrosion-protective agents. The metal salts of perfluorinated polyether acids may be used to prepare corrosion-protected substrates, including magnetic recording disks and magnetic recording heads.
    Type: Application
    Filed: July 31, 2003
    Publication date: February 5, 2004
    Inventors: Qing Dai, Paul Haruo Kasai, Wing Tsang Tang
  • Patent number: 6638622
    Abstract: A process is provided for synthesizing metal salts of perfluorinated polyethers containing at least one carboxylic acid group. The polymeric salts so provided are effective as anti-wetting and corrosion-protective agents. The metal salts of perfluorinated polyether acids may be used to prepare corrosion-protected substrates, including magnetic recording disks and magnetic recording heads.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: October 28, 2003
    Assignee: Hitachi Global Storage Technologies
    Inventors: Qing Dai, Paul Haruo Kasai, Wing Tsang Tang
  • Publication number: 20020090536
    Abstract: A process is provided for synthesizing metal salts of perfluorinated polyethers containing at least one carboxylic acid group. The polymeric salts so provided are effective as anti-wetting and corrosion-protective agents. The metal salts of perfluorinated polyether acids may be used to prepare corrosion-protected substrates, including magnetic recording disks and magnetic recording heads.
    Type: Application
    Filed: January 11, 2001
    Publication date: July 11, 2002
    Inventors: Qing Dai, Paul Haruo Kasai, Wing Tsang Tang
  • Patent number: 4034065
    Abstract: The Cu.sup.+.sup.+ cations of highly siliceous zeolites are found to undergo spontaneous reduction to Cu.sup.+ cations upon dehydration and to produce oxygen by oxidation of water.
    Type: Grant
    Filed: September 26, 1975
    Date of Patent: July 5, 1977
    Assignee: Union Carbide Corporation
    Inventors: Paul Haruo Kasai, James Nelson Francis, Roland Justin Bishop, Jr.
  • Patent number: 3963830
    Abstract: Dehydration of hydrated crystalline zeolites containing trivalent metal cations results in the concurrent reduction of the trivalent cation to the bivalent state and the evolution of oxygen. Rehydration of the zeolite produces free hydrogen and oxidizes the bivalent metal cations to their initial trivalent state. A cyclic operation of the two procedures is advantageously employed.
    Type: Grant
    Filed: June 16, 1975
    Date of Patent: June 15, 1976
    Assignee: Union Carbide Corporation
    Inventors: Paul Haruo Kasai, Roland Justin Bishop, Jr.
  • Patent number: RE47726
    Abstract: An image forming apparatus includes a nip forming member and a transfer bias output device that outputs a transfer bias to form a transfer electric field in a transfer nip between the nip forming member and an intermediate transfer member. Upon transfer of a composite toner image including a particular toner image onto a recording medium in the transfer nip, the transfer bias output device outputs the transfer bias including a first superimposed bias in which a direct current (DC) component is superimposed on an alternating current (AC) component. Upon transfer of the composite toner image without the particular toner image onto the recording medium in the transfer nip, the transfer bias output device outputs one of the transfer bias including a second superimposed bias having a peak-to-peak value of the AC component smaller than that of the first superimposed bias and the transfer bias including only the DC component.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: November 12, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Shinji Aoki, Haruo Iimura, Yasuhiko Ogino, Tadashi Kasai, Naomi Sugimoto, Shinya Tanaka, Keigo Nakamura