Patents by Inventor Nobuhiko Shizuka

Nobuhiko Shizuka 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: 9345253
    Abstract: There are provided a metal soap which is useful as a food additive to be added to various foods for the purposes of improving a fluidity, an anti-bridging property, a low moisture absorption property and feel upon eating of foods, and has a less adverse influence on the foods, as well as a process for producing the metal soap. The metal soap for a food additive is constituted of a fatty acid calcium salt or a fatty acid magnesium salt having 6 to 24 carbon atoms which is obtained by a double decomposition method, and a water dispersion containing the metal soap in an amount of 2% by mass exhibits a pH of not less than 6 but less than 7. The process for producing the metal soap for a food additive includes the steps of reacting 1 mol of a fatty acid having 6 to 24 carbon atoms with not less than 0.9 mol but less than 1 mol of a monovalent basic compound to obtain a fatty acid basic compound salt; and reacting the fatty acid basic compound salt with a calcium salt or a magnesium salt in an aqueous medium.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: May 24, 2016
    Assignee: NOF CORPORATION
    Inventors: Yasuyuki Miyata, Masahiro Fukumoto, Noriko Fujio, Nobuhiko Shizuka
  • Publication number: 20100215821
    Abstract: There are provided a metal soap which is useful as a food additive to be added to various foods for the purposes of improving a fluidity, an anti-bridging property, a low moisture absorption property and feel upon eating of foods, and has a less adverse influence on the foods, as well as a process for producing the metal soap. The metal soap for a food additive is constituted of a fatty acid calcium salt or a fatty acid magnesium salt having 6 to 24 carbon atoms which is obtained by a double decomposition method, and a water dispersion containing the metal soap in an amount of 2% by mass exhibits a pH of not less than 6 but less than 7. The process for producing the metal soap for a food additive includes the steps of reacting 1 mol of a fatty acid having 6 to 24 carbon atoms with not less than 0.9 mol but less than 1 mol of a monovalent basic compound to obtain a fatty acid basic compound salt; and reacting the fatty acid basic compound salt with a calcium salt or a magnesium salt in an aqueous medium.
    Type: Application
    Filed: July 31, 2006
    Publication date: August 26, 2010
    Inventors: Yasuyuki Miyata, Masahiro Fukumoto, Noriko Fujio, Nobuhiko Shizuka
  • Patent number: 7507348
    Abstract: The present invention provides a refrigeration lubricant composition that have necessary properties such as compatibility with a hydrofluorocarbon refrigerant, thermal stability, hydrolytic stability and low-temperature fluidity, and good lubricity, and has high stability under low temperature conditions so that crystals are prevented from being precipitated over a long term. The refrigeration lubricant includes an ester obtained from a mixed alcohol and a mixed carboxylic acid, wherein the mixed alcohol consists of 65 to 99.95 mol % of pentaerythritol and 0.05 to 35 mol % of dipentaerythritol, the mixed carboxylic acid consists of n-pentanoic acid, n-heptanoic acid, and isononanoic acid, the molar ratio of the n-pentanoic acid to the n-heptanoic acid is 0.3 or more and 10 or less, and the isononanoic acid is contained in the mixed carboxylic acid at a ratio of 10 mol % or more and 45 mol % or less.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: March 24, 2009
    Assignee: NOF Corporation
    Inventors: Takeshi Kajiki, Munehiro Yamada, Nobuhiko Shizuka
  • Patent number: 7387746
    Abstract: A refrigeration lubricant composition comprises an ester obtained from a mixed alcohol and a mixed carboxylic acid as a main component. The mixed alcohol comprises 65 to 99.95 mol % of pentaerythritol and 0.05 to 35 mol % of dipentaerythritol, the mixed carboxylic acid comprises 25 to 55 mol % of monocarboxylic acid having 5 to 8 carbon atoms and 45 to 75 mol % of isononanoic acid, and the composition has a hydroxyl value of 5.0 mgKOH/g or less and an acid value of 0.05 mgKOH/g or less.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: June 17, 2008
    Assignee: NOF Corporation
    Inventors: Munehiro Yamada, Nobuhiko Shizuka, Michimasa Memita, Hiroko Miyashita
  • Publication number: 20060278845
    Abstract: The present invention provides a refrigeration lubricant composition that have necessary properties such as compatibility with a hydrofluorocarbon refrigerant, thermal stability, hydrolytic stability and low-temperature fluidity, and good lubricity, and has high stability under low temperature conditions so that crystals are prevented from being precipitated over a long term. The refrigeration lubricant includes an ester obtained from a mixed alcohol and a mixed carboxylic acid, wherein the mixed alcohol consists of 65 to 99.95 mol % of pentaerythritol and 0.05 to 35 mol % of dipentaerythritol, the mixed carboxylic acid consists of n-pentanoic acid, n-heptanoic acid, and isononanoic acid, the molar ratio of the n-pentanoic acid to the n-heptanoic acid is 0.3 or more and 10 or less, and the isononanoic acid is contained in the mixed carboxylic acid at a ratio of 10 mol % or more and 45 mol % or less.
    Type: Application
    Filed: May 25, 2006
    Publication date: December 14, 2006
    Applicant: NOF Corporation
    Inventors: Takeshi Kajiki, Munehiro Yamada, Nobuhiko Shizuka
  • Publication number: 20060261305
    Abstract: The present invention provides a snow melting composition containing tripotassium citrate (a) and a non-synthetic polyhydric alcohol (b), wherein the tripotassium citrate (a) is contained in a ratio of 20 to 75 wt % and the non-synthetic polyhydric alcohol (b) is contained in a ratio of 25 to 80 wt %, with respect to the total weight of the tripotassium citrate (a) and the non-synthetic polyhydric alcohol (b). The snow melting composition of the present invention provides an excellent snow melting effect, does not corrode metals, and furthermore has low odor characteristics and thus does not adversely affect organisms living in surrounding areas.
    Type: Application
    Filed: April 25, 2006
    Publication date: November 23, 2006
    Applicant: NOF CORPORATION
    Inventors: Hirokazu Ohike, Hiroshi Hattori, Hideki Kawamoto, Noriko Fujio, Nobuhiko Shizuka, Hideaki Sakahashi
  • Publication number: 20060255313
    Abstract: A refrigeration lubricant composition comprises an ester obtained from a mixed alcohol and a mixed carboxylic acid as a main component. The mixed alcohol comprises 65 to 99.95 mol % of pentaerythritol and 0.05 to 35 mol % of dipentaerythritol, the mixed carboxylic acid comprises 25 to 55 mol % of monocarboxylic acid having 5 to 8 carbon atoms and 45 to 75 mol % of isononanoic acid, and the composition has a hydroxyl value of 5.0 mgKOH/g or less and an acid value of 0.05 mgKOH/g or less.
    Type: Application
    Filed: July 20, 2006
    Publication date: November 16, 2006
    Inventors: Munehiro Yamada, Nobuhiko Shizuka, Michimasa Memita, Hiroko Miyashita
  • Publication number: 20050145823
    Abstract: A refrigeration lubricant composition comprises an ester obtained from a mixed alcohol and a mixed carboxylic acid as a main component. The mixed alcohol comprises 65 to 99.95 mol % of pentaerythritol and 0.05 to 35 mol % of dipentaerythritol, the mixed carboxylic acid comprises 25 to 55 mol % of monocarboxylic acid having 5 to 8 carbon atoms and 45 to 75 mol % of isononanoic acid, and the composition has a hydroxyl value of 5.0 mgKOH/g or less and an acid value of 0.05 mgKOH/g or less.
    Type: Application
    Filed: November 18, 2004
    Publication date: July 7, 2005
    Inventors: Munehiro Yamada, Nobuhiko Shizuka, Michimasa Memita, Hiroko Miyashita
  • Patent number: 5593957
    Abstract: A synthetic lubricating oil comprises an ester derived from (a) a monohydric alcohol having 4 to 18 carbon atoms which has a branched alcohol content of not less than 50 mol % and/or a neopentylpolyol having not more than 30 carbon atoms, (b) a hydroxycarboxylic acid condensate having an average degree of polymerization of not less than 1.2, and (c) a monocarboxylic acid having 4 to 18 carbon atoms which has a branched carboxylic acid content of not less than 50 mol %.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: January 14, 1997
    Assignee: NOF Corporation
    Inventors: Nobutoshi Obara, Nobuhiko Shizuka, Fujio Takahashi
  • Patent number: 4888132
    Abstract: An aqueous rust inhibitor containing a soap of a hydroxyaryl fatty acid and an alkali metal. The inhibitor exhibits good rust inhibiting effects without emitting any malodor.
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: December 19, 1989
    Assignee: Nippon Oil and Fats Co., Ltd.
    Inventors: Hitoshi Kohashi, Nobuhiko Shizuka, Yoshihito Kadoma