Patents by Inventor Ryo Aizawa

Ryo Aizawa 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).

  • Publication number: 20250250221
    Abstract: The present disclosure relates to an ester-compound-containing composition including an ester compound (I) that is one or more of specific alkyl (meth)acrylates, and at least one component selected from component A1 to A5: a specific aldehyde compound, a specific acetal compound, a specific ketal compound, a specific carboxylic acid compound, or a specific alcohol, in which a contained amount of the ester compound (I) is 95% to 99.99% by mass with respect to the total mass of the ester-compound-containing composition.
    Type: Application
    Filed: April 24, 2025
    Publication date: August 7, 2025
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Ryo AIZAWA
  • Publication number: 20250250223
    Abstract: A methacrylic acid-containing composition comprises the following ester compound (I) and the following component (A), in which the contained amount of the ester compound (I) is 95.00% to 99.99% by mass with respect to the total mass: Ester compound (I): one or more compounds selected from the group consisting of an ester compound (1), an ester compound (2), a compound (3), an ester compound (4), and an ester compound (5); Component (A): one or more components selected from the group consisting of a component A1, a component A2, a component A6, a component A7, a component A8, a component A9, and a component A10.
    Type: Application
    Filed: April 24, 2025
    Publication date: August 7, 2025
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Ryo AIZAWA, Takeshi WATANABE, Naoki ICHII
  • Patent number: 12197547
    Abstract: An information providing system, an information providing method, and an information providing program as configured herein can allow an information provider to limit the use of information on a program and verify the program when information provided by the information provider is arithmetically processed by the program in the arithmetic processing device.
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: January 14, 2025
    Assignee: SEERA NETWORKS, INC.
    Inventors: Masahiro Kozuka, Ryo Aizawa
  • Publication number: 20240211576
    Abstract: An information providing system, an information providing method, and an information providing program as configured herein can allow an information provider to limit the use of information on a program and verify the program when information provided by the information provider is arithmetically processed by the program in the arithmetic processing device.
    Type: Application
    Filed: March 25, 2022
    Publication date: June 27, 2024
    Inventors: Masahiro KOZUKA, Ryo AIZAWA
  • Patent number: 10442768
    Abstract: The present invention provides a method for producing a 2-aminonicotinic acid benzyl ester derivative. The method includes, as a step, reacting a 2-aminonicotinic acid derivative represented by the formula [I], wherein R1 represents a hydrogen atom or a C1 to C4 alkyl group and M represents an alkali metal, with a benzyl derivative represented by the formula [II], wherein R2 represents, for example, a hydrogen atom or a halogen atom, A represents, for example, a nitrogen atom, X represents a halogen atom, and Y represents, for example, an oxygen atom, in an aromatic hydrocarbon solvent in the presence of a phase transfer catalyst or a tertiary amine.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: October 15, 2019
    Assignee: AGRO-KANESHO CO., LTD.
    Inventors: Ryo Aizawa, Koichi Araki
  • Publication number: 20180362464
    Abstract: The present invention provides a method for producing a 2-aminonicotinic acid benzyl ester derivative. The method includes, as a step, reacting a 2-aminonicotinic acid derivative represented by the formula [I], wherein R1 represents a hydrogen atom or a C1 to C4 alkyl group and M represents an alkali metal, with a benzyl derivative represented by the formula [II], wherein R2 represents, for example, a hydrogen atom or a halogen atom, A represents, for example, a nitrogen atom, X represents a halogen atom, and Y represents, for example, an oxygen atom, in an aromatic hydrocarbon solvent in the presence of a phase transfer catalyst or a tertiary amine.
    Type: Application
    Filed: November 8, 2016
    Publication date: December 20, 2018
    Applicant: AGRO-KANESHO CO., LTD.
    Inventors: Ryo AIZAWA, Koichi ARAKI
  • Patent number: 9902697
    Abstract: The present invention provides a method for producing 2-amino-6-methylnicotinic acid represented by formula [I], wherein the production method comprises: (a) reacting 2-chloro-3-cyano-6-methylpyridine represented by formula [II] in an ammonia aqueous solution to obtain a reaction solution containing 2-amino-6-methylnicotinamide represented by formula [III]; and (b) removing the ammonia from the reaction solution, then reacting the 2-amino-6-methylnicotinamide represented by formula [III]with a base to produce 2-amino-6-methylnicotinic acid represented by formula [I].
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: February 27, 2018
    Assignee: AGRO-KANESHO CO., LTD.
    Inventors: Ryo Aizawa, Koichi Araki
  • Patent number: 9783480
    Abstract: Provided is a method that can produce phenyl(meth)acrylate inexpensively and at high yields. The phenyl(meth)acrylate production method of the present invention reacts (meth)acrylic acid with carbonic acid diphenyl. Further, the phenyl(meth)acrylate composition of the present invention contains 90-99.999 wt % phenyl(meth)acrylate and 0.001-10% carbonic acid diphenyl. Or, the phenyl(meth)acrylate composition of the present invention contains 90-99.999 wt % phenyl(meth)acrylate and 0.001-10 wt % of a specified compound.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: October 10, 2017
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Ryo Aizawa, Takeshi Matsuo, Naoshi Murata, Hiroyuki Mori
  • Patent number: 9771315
    Abstract: Provided is a method that can produce phenyl(meth)acrylate inexpensively and at high yields. The phenyl(meth)acrylate production method of the present invention reacts (meth)acrylic acid with carbonic acid diphenyl. Further, the phenyl(meth)acyrlate composition of the present invention contains 90-99.999 wt % phenyl(meth)acrylate and 0.001-10% carbonic acid diphenyl. Or, the phenyl(meth)acrylate composition of the present invention contains 90-99.999 wt % phenyl(meth)acrylate and 0.001-10 wt % of a specified compound.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: September 26, 2017
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Ryo Aizawa, Takeshi Matsuo, Naoshi Murata, Hiroyuki Mori
  • Patent number: 9714223
    Abstract: The present invention provides a method for producing 2-amino-6-methylnicotinic acid represented by formula [I], wherein the production method comprises: (a) reacting 2-chloro-3-cyano-6-methylpyridine represented by formula [II] in an ammonia aqueous solution to obtain a reaction solution containing 2-amino-6-methylnicotinamide represented by formula [III]; and (b) removing the ammonia from the reaction solution, then reacting the 2-amino-6-methylnicotinamide represented by formula [III]with a base to produce 2-amino-6-methylnicotinic acid represented by formula [I].
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: July 25, 2017
    Assignee: AGRO-KANESHO CO., LTD.
    Inventors: Ryo Aizawa, Koichi Araki
  • Patent number: 9695124
    Abstract: The present invention provides a method of producing a 2-aminonicotinic acid benzyl ester derivative at a high yield and with a high purity. By reacting a benzyl halide derivative with a 2-aminonicotinic acid derivative in a polar solvent in the presence of a prescribed base, it is possible to obtain a 2-aminonicotinic acid benzyl ester derivative at a high yield and with a high purity.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: July 4, 2017
    Assignee: AGRO-KANESHO CO., LTD.
    Inventors: Ryo Aizawa, Itaru Okada
  • Publication number: 20170129858
    Abstract: The present invention provides a method for producing 2-amino-6-methylnicotinic acid represented by formula [I], wherein the production method comprises: (a) reacting 2-chloro-3-cyano-6-methylpyridine represented by formula [II] in an ammonia aqueous solution to obtain a reaction solution containing 2-amino-6-methylnicotinamide represented by formula [III]; and (b) removing the ammonia from the reaction solution, then reacting the 2-amino-6-methylnicotinamide represented by formula [III]with a base to produce 2-amino-6-methylnicotinic acid represented by formula [I].
    Type: Application
    Filed: June 27, 2014
    Publication date: May 11, 2017
    Applicant: AGRO-KANESHO CO., LTD.
    Inventors: Ryo AIZAWA, Koichi ARAKI
  • Publication number: 20170022136
    Abstract: Provided is a method that can produce phenyl(meth)acrylate inexpensively and at high yields. The phenyl(meth)acrylate production method of the present invention reacts (meth)acrylic acid with carbonic acid diphenyl. Further, the phenyl(meth)acrylate composition of the present invention contains 90-99.999 wt % phenyl(meth)acrylate and 0.001-10% carbonic acid diphenyl. Or, the phenyl(meth)acrylate composition of the present invention contains 90-99.999 wt % phenyl(meth)acrylate and 0.001-10 wt % of a specified compound.
    Type: Application
    Filed: October 4, 2016
    Publication date: January 26, 2017
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Ryo Aizawa, Takeshi Matsuo, Naoshi Murata, Hiroyuki Mori
  • Publication number: 20160318868
    Abstract: The present invention provides a method of producing a 2-aminonicotinic acid benzyl ester derivative at a high yield and with a high purity. By reacting a benzyl halide derivative with a 2-aminonicotinic acid derivative in a polar solvent in the presence of a prescribed base, it is possible to obtain a 2-aminonicotinic acid benzyl ester derivative at a high yield and with a high purity.
    Type: Application
    Filed: December 27, 2013
    Publication date: November 3, 2016
    Applicant: AGRO-KANESHO CO., LTD.
    Inventors: Ryo AIZAWA, Itaru OKADA
  • Publication number: 20160244396
    Abstract: Provided is a method that can produce phenyl(meth)acrylate inexpensively and at high yields. The phenyl(meth)acrylate production method of the present invention reacts (meth)acrylic acid with carbonic acid diphenyl. Further, the phenyl(meth)acyrlate composition of the present invention contains 90-99.999 wt % phenyl(meth)acrylate and 0.001-10% carbonic acid diphenyl. Or, the phenyl(meth)acrylate composition of the present invention contains 90-99.999 wt % phenyl(meth)acrylate and 0.001-10 wt % of a specified compound.
    Type: Application
    Filed: October 24, 2014
    Publication date: August 25, 2016
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Ryo AIZAWA, Takeshi MATSUO, Naoshi MURATA, Hiroyuki MORI
  • Patent number: 9096528
    Abstract: The present invention provides a bactericide containing a 2-aminonicotinic acid ester derivative as an active ingredient. The active ingredient is represented by the following formula [I]: (wherein, R1 represents a hydrogen atom or a C1-C4 alkyl group, R2 represents a hydrogen atom or a C1-C4 alkyl group, R1 and R2 may be combined together to form an alkylene chain, R3 represents a hydrogen atom or a C1-C4 alkyl group, R4 represents a hydrogen atom, a cyano group or a C1-C4 alkyl group, R5 and R6 independently represent a hydrogen atom, a halogen atom, a C1-C4 alkyl group, a C1-C4 alkoxy group, a C1-C4 alkylthio group, a C1-C4 alkylsulfinyl group, a C1-C4 alkylsulfonyl group, a nitro group, a cyano group, a C1-C4 haloalkyl group, a C1-C4 haloalkoxy group or a C1-C4 haloalkylthio group, A and B independently represent a methine (CH) group or a nitrogen atom).
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: August 4, 2015
    Assignee: AGRO-KANESHO CO., LTD.
    Inventors: Ryo Aizawa, Itaru Okada, Toshiki Fukuchi, Masahiro Hatamoto
  • Publication number: 20150175551
    Abstract: The present invention provides a bactericide containing a 2-aminonicotinic acid ester derivative as an active ingredient. The active ingredient is represented by the following formula [I]: (wherein, R1 represents a hydrogen atom or a C1-C4 alkyl group, R2 represents a hydrogen atom or a C1-C4 alkyl group, R1 and R2 may be combined together to form an alkylene chain, R3 represents a hydrogen atom or a C1-C4 alkyl group, R4 represents a hydrogen atom, a cyano group or a C1-C4 alkyl group, R5 and R6 independently represent a hydrogen atom, a halogen atom, a C1-C4 alkyl group, a C1-C4 alkoxy group, a C1-C4 alkylthio group, a C1-C4 alkylsulfinyl group, a C1-C4 alkylsulfonyl group, a nitro group, a cyano group, a C1-C4 haloalkyl group, a C1-C4 haloalkoxy group or a C1-C4 haloalkylthio group, A and B independently represent a methine (CH) group or a nitrogen atom).
    Type: Application
    Filed: April 2, 2013
    Publication date: June 25, 2015
    Applicant: AGRO-KANESHO CO., LTD.
    Inventors: Ryo Aizawa, Itaru Okada, Toshiki Fukuchi, Masahiro Hatamoto