Patents by Inventor Masakuni Sato

Masakuni Sato 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: 10556273
    Abstract: In a surface-coated cutting tool, an A layer made of an (Al1-xTix)N layer (0.35?x?0.6 by an atom ratio) and a B layer made of a (Al1-y-zTiySiz)N layer (0.35?y?0.6 and 0.01?z?0.1 by an atom ratio) are layered on a surface of a tool body in which at least a cutting edge is made of a cBN sintered body. A layer thickness ratio of the A layer and the B layer (tB/tA) is 2 to 5, an X-ray diffraction intensity ratio I(200)/I(111) as the entire hard coating layer is more than 3 and 12 or less, a full width at half maximum of a peak of I(200) is 0.3 to 1.0, the IA(200)/IA(111) of the A layer is 2 to 10, and a full width at half maximum of the peak of the IA(200) is 0.3 to 1.0.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: February 11, 2020
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Shun Sato, Masakuni Takahashi
  • Publication number: 20160238935
    Abstract: To provide a coating composition which exhibits excellent followability to a difference in level in its application, and which is capable of forming a coating layer having a low refractive index in a short-wavelength region and exhibiting excellent solubility to an alkaline aqueous solution. A coating composition comprising a solvent and a fluorinated polymer (A) which has a unit represented by —[CX1X2—CY(—Rf—COOM)]— and has a number average molecular weight of from 1,000 to 7,500. X1 and X2 are each independently a hydrogen atom, a fluorine atom or a chlorine atom; Y is a hydrogen atom, a fluorine atom, a chlorine atom, a methyl group or a trifluoromethyl group; Rf is a branched perfluoroalkylene group which may contain an etheric oxygen atom between carbon-carbon atoms, or a branched oxyperfluoroalkylene group which may contain an etheric oxygen atom between carbon-carbon atoms; and M is a hydrogen atom or an ammonium ion which may be substituted.
    Type: Application
    Filed: April 27, 2016
    Publication date: August 18, 2016
    Applicant: Asahi Glass Company, Limited
    Inventors: Ryujiro YAMASAKI, Akihiko ASAKAWA, Yoshihiko SAKANE, Masakuni SATO, Kazuo UMEMURA
  • Patent number: 9304251
    Abstract: To provide a plastic optical fiber using amorphous fluorinated polymers whereby transmission loss and bending loss are low, no cracking takes place during stretching, and a wide range of molding conditions is acceptable.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: April 5, 2016
    Assignee: Asahi Glass Company, Limited
    Inventors: Toshiyuki Tanaka, Nobuyuki Kasahara, Masakuni Sato, Hiroshi Yamamoto, Susumu Saito, Tetsuji Shimohira, Yoshinobu Takano, Naoto Ota
  • Publication number: 20150177456
    Abstract: To provide a plastic optical fiber using amorphous fluorinated polymers whereby transmission loss and bending loss are low, no cracking takes place during stretching, and a wide range of molding conditions is acceptable.
    Type: Application
    Filed: March 3, 2015
    Publication date: June 25, 2015
    Applicant: Asahi Glass Company, Limited
    Inventors: Toshiyuki Tanaka, Nobuyuki Kasahara, Masakuni Sato, Hiroshi Yamamoto, Susumu Saito, Tetsuji Shimohira, Yoshinobu Takano, Naoto Ota
  • Patent number: 7071272
    Abstract: The present invention provides a method for preparing a compound of CF3CF2CF2OCF?CF2 by pyrolyzing a compound expressed by CF3CF2CF2OCF(CF3)COOCF2CF(CF3)OCF2CF2CF3 in a gas phase at a temperature of from 200° C. to 500° C.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: July 4, 2006
    Assignee: Asahi Glass Company, Limited
    Inventors: Takashi Okazoe, Kunio Watanabe, Shin Tatematsu, Masakuni Sato, Hidenobu Murofushi, Koichi Yanase, Yasuhiro Suzuki
  • Patent number: 7053237
    Abstract: A process for producing a fluorinated ester through a small number of steps, is presented. The process for producing a fluorinated ester, comprises a transesterification step in which RAF—COOCF2—RAF and RA—CH2OH are subjected to a transesterification reaction to obtain RAF—COOCH2—RA, and a fluorination step in which the obtained compound is fluorinated to obtain a reaction product containing RAF—COOCF2—RAF. Here, in the formulae, RA is a monovalent organic group, and RAF is the same group as RA or a monovalent organic group obtained by fluorination of RA.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: May 30, 2006
    Assignee: Asahi Glass Company, Limited
    Inventors: Takashi Okazoe, Kunio Watanabe, Shin Tatematsu, Hidenobu Murofushi, Masakuni Sato, Masahiro Ito, Koichi Yanase, Yasuhiro Suzuki
  • Publication number: 20050261516
    Abstract: A process for producing a fluorinated ester through a small number of steps, is presented. The process for producing a fluorinated ester, comprises a transesterification step in which RAF—COOCF2—RAF and RA—CH2OH are subjected to a transesterification reaction to obtain RAF—COOCH2—RA, and a fluorination step in which the obtained compound is fluorinated to obtain a reaction product containing RAF—COOCF2—RAF. Here, in the formulae, RA is a monovalent organic group, and RAF is the same group as RA or a monovalent organic group obtained by fluorination of RA.
    Type: Application
    Filed: July 16, 2003
    Publication date: November 24, 2005
    Applicant: ASAHI GLASS COMPANY
    Inventors: Takashi Okazoe, Kunio Watanabe, Shin Tatematsu, Hidenobu Murofushi, Masakuni Sato, Masahiro Ito, Koichi Yanase, Yasuhiro Suzuki
  • Patent number: 6756458
    Abstract: A novel polymer useful as an optical resin material excellent in heat resistance, a novel monomer for obtaining the polymer, etc., are provided. A fluorinated diene represented by CF2═CF(CF2)nC(CF3)ROCF═CF2 (wherein R is a fluorine atom or a trifluoromethyl group, and n is an integer of from 1 to 3), and a polymer thereof.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: June 29, 2004
    Assignee: Asahi Glass Company, Limited
    Inventors: Kimiaki Kashiwagi, Gen Ogawa, Masakuni Sato, Kazuya Oharu, Isamu Kaneko, Norihide Sugiyama, Shin Tatematsu
  • Patent number: 6670511
    Abstract: A fluorine-containing diene represented by the formula 1: CF2═CF(CF2)nCXYOCF═CF2  Formula 1 wherein each of X and Y which are independent of each other, is an atom selected from a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom and an iodine atom, provided that X and Y are not simultaneously hydrogen atoms or fluorine atoms, and n is an integer of from 1 to 3.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: December 30, 2003
    Assignee: Asahi Glass Company Limited
    Inventors: Kimiaki Kashiwagi, Hidenobu Murofushi, Norihide Sugiyama, Masakuni Sato, Atsushi Watakabe
  • Publication number: 20030139570
    Abstract: The present invention produces an unsaturated compound (Formula 2) useful as a fluororesin starting material and the like by using a compound of the Formula 1 as a starting material.
    Type: Application
    Filed: December 2, 2002
    Publication date: July 24, 2003
    Applicant: ASAHI GLASS COMPANY LIMITED
    Inventors: Takashi Okazoe, Kunio Watanabe, Shin Tatematsu, Masakuni Sato, Hidenobu Murofushi, Koichi Yanase, Yasuhiro Suzuki
  • Publication number: 20030125490
    Abstract: A novel polymer useful as an optical resin material excellent in heat resistance, a novel monomer for obtaining the polymer, etc., are provided. A fluorinated diene represented by CF2═CF(CF2)nC(CF3)ROCF═CF2 (wherein R is a fluorine atom or a trifluoromethyl group, and n is an integer of from 1 to 3), and a polymer thereof.
    Type: Application
    Filed: December 2, 2002
    Publication date: July 3, 2003
    Applicant: ASAHI GLASS COMPANY LIMITED
    Inventors: Kimiaki Kashiwagi, Gen Ogawa, Masakuni Sato, Kazuya Oharu, Isamu Kaneko, Norihide Sugiyama, Shin Tatematsu
  • Publication number: 20020156329
    Abstract: A fluorine-containing diene represented by the formula 1:
    Type: Application
    Filed: May 15, 2002
    Publication date: October 24, 2002
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Kimiaki Kashiwagi, Hidenobu Murofushi, Norihide Sugiyama, Masakuni Sato, Atsushi Watakabe
  • Patent number: 6448452
    Abstract: A polymer which contains monomer units formed by polymerization of a fluorine-containing diene of formula 1: CF2═CF(CF2)nCXYOCF═CF2 Wherein X and Y are hydrogen and chlorine, hydrogen and-bromine, hydrogen and iodine, fluorine and chlorine, fluorine and bromine, fluorine and iodine, chlorine and bromine, chlorine and iodine, bromine and bromine, bromine and iodine, or iodine and iodine and n is an integer from 1 to 3.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: September 10, 2002
    Assignee: Asahi Glass Company Limited
    Inventors: Kimiaki Kashiwagi, Hidenobu Murofushi, Norihide Sugiyama, Masakuni Sato, Atsushi Watakabe
  • Publication number: 20010047115
    Abstract: A fluorine-containing diene represented by the formula 1:
    Type: Application
    Filed: April 25, 2001
    Publication date: November 29, 2001
    Applicant: Asahi Glass Company, Limited
    Inventors: Kimiaki Kashiwagi, Hidenobu Murofushi, Norihide Sugiyama, Masakuni Sato, Atsushi Watakabe