Patents by Inventor Satoru Ujita

Satoru Ujita 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: 9822085
    Abstract: A tetrazolinone compound represented by formula (1): [in the formula, R1 represents an alkyl group having 1-6 carbon atoms or the like] can be produced by reacting a compound represented by formula (2): [in the formula, X1 represents a bromine atom or the like, and R1 represents an alkyl group having 1-6 carbon atoms or the like] with a compound represented by formula (A): R—Mg—X??(A) [in the formula, R represents an alkyl group having 1-6 carbon atoms or the like, and X1 represents a bromine atom or the like] to provide a compound represented by formula (3): [in the formula, X2 represents a chlorine atom or the like] and reacting the compound represented by formula (3) with formaldehyde or a compound represented by formula (4): [in the formula, R6 represents an alkyl group having 1-6 carbon atoms or the like, and X3 represents a chlorine atom, bromine atom or iodine atom].
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: November 21, 2017
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Satoru Ujita, Takayuki Shioda
  • Patent number: 9815768
    Abstract: Position-1 halogen can be selectively reduced by reacting a compound represented by formula (3): [wherein X represents a chlorine atom, a bromine atom, or an iodine atom] with halogen in the presence of a heterogeneous transition metal catalyst to produce 2-(halogenomethyl)-1-methyl-3-nitrobenzene represented by formula (1): [wherein the symbol is as defined above].
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: November 14, 2017
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Satoru Ujita, Takashi Miyamoto
  • Patent number: 9796678
    Abstract: The present invention provides a method for manufacturing an optically active compound of formula (2), which contains bringing hydrogen into contact with a compound of formula (1) in the presence of a transition metal catalyst having an optically active ligand. In the formula, R1 represents a hydrogen atom or an acetyl group, R2, R3, R4, and R5 each independently represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a hydroxy group, a nitro group, an amino group, or an acyl group, R6 represents an alkyl group, R7 and R8 each independently represents a hydrogen atom or an alkyl group, and a carbon atom marked with an asterisk (*) represents an asymmetric carbon atom.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: October 24, 2017
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Tomoaki Takahashi, Satoru Ujita
  • Publication number: 20170057935
    Abstract: A tetrazolinone compound represented by formula (1): [in the formula, R1 represents an alkyl group having 1-6 carbon atoms or the like] can be produced by reacting a compound represented by formula (2): [in the formula, X1 represents a bromine atom or the like, and R1 represents an alkyl group having 1-6 carbon atoms or the like] with a compound represented by formula (A): R—Mg—X??(A) [in the formula, R represents an alkyl group having 1-6 carbon atoms or the like, and X1 represents a bromine atom or the like] to provide a compound represented by formula (3): [in the formula, X2 represents a chlorine atom or the like] and reacting the compound represented by formula (3) with formaldehyde or a compound represented by formula (4): [in the formula, R6 represents an alkyl group having 1-6 carbon atoms or the like, and X3 represents a chlorine atom, bromine atom or iodine atom].
    Type: Application
    Filed: March 3, 2015
    Publication date: March 2, 2017
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Satoru UJITA, Takayuki SHIODA
  • Publication number: 20170022162
    Abstract: The present invention provides a method for manufacturing an optically active compound of formula (2), which contains bringing hydrogen into contact with a compound of formula (1) in the presence of a transition metal catalyst having an optically active ligand. In the formula, R1 represents a hydrogen atom or an acetyl group, R2, R3, R4, and R5 each independently represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a hydroxy group, a nitro group, an amino group, or an acyl group, R6 represents an alkyl group, R7 and R8 each independently represents a hydrogen atom or an alkyl group, and a carbon atom marked with an asterisk (*) represents an asymmetric carbon atom.
    Type: Application
    Filed: March 6, 2015
    Publication date: January 26, 2017
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Tomoaki TAKAHASHI, Satoru UJITA
  • Publication number: 20160332956
    Abstract: Position-1 halogen can be selectively reduced by reacting a compound represented by formula (3): [wherein X represents a chlorine atom, a bromine atom, or an iodine atom] with halogen in the presence of a heterogeneous transition metal catalyst to produce 2-(halogenomethyl)-1-methyl-3-nitrobenzene represented by formula (1): [wherein the symbol is as defined above].
    Type: Application
    Filed: February 16, 2015
    Publication date: November 17, 2016
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Satoru Ujita, Takashi Miyamoto
  • Patent number: 9227911
    Abstract: A method for producing a methanol solvate of D-tartrate of (R)-1,1,3-trimethyl-4-aminoindane, the method comprising steps (a), (b), and (c) below, and comprising adding water to a reaction system before step (c): step (a) of mixing 1,1,3-trimethyl-4-aminoindane, D-tartaric acid, and methanol to provide a mixture containing a methanol solvate of D-tartrate of (R)-1,1,3-trimethyl-4-aminoindane; step (b) of cooling the obtained mixture; and step (c) of retrieving the methanol solvate of D-tartrate of (R)-1,1,3-trimethyl-4-aminoindane.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: January 5, 2016
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Satoru Ujita, Tsutomu Matsumoto, Tomohiko Inui
  • Publication number: 20150203438
    Abstract: A method for producing a methanol solvate of D-tartrate of (R)-1,1,3-trimethyl-4-aminoindane, the method comprising steps (a), (b), and (c) below, and comprising adding water to a reaction system before step (c): step (a) of mixing 1,1,3-trimethyl-4-aminoindane, D-tartaric acid, and methanol to provide a mixture containing a methanol solvate of D-tartrate of (R)-1,1,3-trimethyl-4-aminoindane; step (b) of cooling the obtained mixture; and step (c) of retrieving the methanol solvate of D-tartrate of (R)-1,1,3-trimethyl-4-aminoindane.
    Type: Application
    Filed: August 28, 2013
    Publication date: July 23, 2015
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Satoru Ujita, Tsutomu Matsumoto, Tomohiko Inui
  • Publication number: 20110201649
    Abstract: Provided is an agricultural composition comprising a compound represented by the formula (I) or a salt thereof or a hydrate thereof, for controlling a plant disease due to a plant pathogen: [wherein, G represents a di-valent aromatic hetero 5-membered ring optionally having a halogen atom or C1 to 3 alkyl group (with the proviso that a hetero atom of the aromatic hetero 5-membered ring is a nitrogen atom, oxygen atom or sulfur atom), R1 represents a hydrogen atom or amino group, R2, R3 and R4 represent each independently a hydrogen atom or the like, and E represents an optionally substituted 5 to 10-membered heterocyclic group or C6-10 aryl group.].
    Type: Application
    Filed: September 17, 2009
    Publication date: August 18, 2011
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yuichi Matsuzaki, Hiroshi Sakaguchi, Satoru Ujita