Patents by Inventor Masato Mizutani

Masato Mizutani 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).

  • Novel thiazolidin-4-one derivatives and acid addition salts therof
    Patent number: 4849434
    Abstract: A novel 2-pyridylthiazolidin-4-one derivative represented by the general formula ##STR1## wherein Ar denotes an aryl group unsubstituted or substituted with a halogen atom or with a lower alkoxy group; X denotes a straight-chain or branched-chain lower alkylene group or a single bond; R denotes a hydrogen atom, lower alkyl, lower alkenyl, lower alkynyl, cycloalkyl, acyloxy, di(lower alkyl) amino, hydroxyl or aryl group, or denotes an aryl group substituted with a lower alkoxy group; and Py denotes a pyridyl group, and the acid addition salt thereof, which have an excellent platelet activating factor antagonsm.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: July 18, 1989
    Assignees: Sumitomo Pharmaceuticals Company, Limited, Sumitomo Chemical Company, Limited
    Inventors: Masao Enomoto, Masami Muraoka, Keiichi Ono, Atsuyuki Kojima, Toshio Atsumi, Yoshihiro Komuro, Yuzuru Sanemitsu, Masato Mizutani
  • 3-Thiooxo-5-oxo-hexahydro-1,2,4-triazine and its production and use
    Patent number: 4361437
    Abstract: 3-Thiooxo-5-oxo-hexahydro-1,2,4-triazine, which is useful as a herbicide and/or fungicide.
    Type: Grant
    Filed: February 17, 1981
    Date of Patent: November 30, 1982
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shunichi Hashimoto, Hiromichi Oshio, Masato Mizutani, Yuzuru Sanemitsu, Haruhiko Katoh, Seizo Sumida, Tadashi Ooishi
  • Herbicidal composition comprising triazinone compound
    Patent number: 4337082
    Abstract: A herbicidal composition which comprises as an active ingredient a herbicidally effective amount of a triazinone compound of the formula: ##STR1## wherein A is --NH--N.dbd.CHCH.sub.2 NH--, --NH--NHCH.sub.2 CH.sub.2 NH-- or --NH--N.dbd.CHC(NHOH).dbd.N--, and an inert carrier.
    Type: Grant
    Filed: February 10, 1981
    Date of Patent: June 29, 1982
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Shunichi Hashimoto, Hiromichi Oshio, Masato Mizutani, Yuzuru Sanemitsu, Haruhiko Katoh, Seizo Sumida
  • Insecticidal and acaricidal 3,5-dioxo-2,3,4,5-triazine compounds
    Patent number: 4327094
    Abstract: A carboxylate of the formula, ##STR1## wherein R.sub.1 is an allyl or propargyl group, R.sub.2 is a group of ##STR2## in which R.sub.3 is a hydrogen atom or a methyl group, and when R.sub.3 is a hydrogen atom, R.sub.4 is a group of ##STR3## (in which R.sub.7 is a chlorine, bromine or fluorine atom, or a methyl, vinyl, methoxycarbonyl or methoxymethyl group, R.sub.8 is a hydrogen, chlorine, bromine or fluorine atom or a methyl group), and when R.sub.3 is a methyl group, R.sub.4 is a methyl group, R.sub.5 is an isopropyl or cyclopropyl group, R.sub.6 is an alkyl group having 1 to 3 carbon atoms or alkoxy group having 1 to 3 carbon atoms, or a chlorine, bromine or fluorine atom, n is 1 or 2, and --(R.sub.6).sub.n may include a 3,4-methylenedioxy group, and its use as an insecticide and/or acaricide.
    Type: Grant
    Filed: January 16, 1981
    Date of Patent: April 27, 1982
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masato Mizutani, Kazunori Tsushima, Yuzuru Sanemitsu, Masachika Hirano
  • 3,5-Dioxo-1,2,4-triazines
    Patent number: 4297129
    Abstract: Use of 3,5-dioxo-1,2,4-triazine derivatives of the formula: ##STR1## wherein X, Y, R.sup.1 and R.sup.2 are each as defined in the specification, as a herbicidal agent exerting a strong controlling and preventing effect against wild oats without any material phytotoxicity to wheat.
    Type: Grant
    Filed: April 25, 1980
    Date of Patent: October 27, 1981
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yuzuru Sanemitsu, Masato Mizutani, Seizo Sumida, Haruhiko Katoh, Hiromichi Oshio, Shunichi Hashimoto
  • Purification process for 3-phenoxybenzaldehyde
    Patent number: 4162269
    Abstract: A purification process for 3-phenoxybenzaldehyde, which comprises reacting crude 3-phenoxybenzaldehyde with an alkali metal or ammonium bisulfite, or metabisulfite in the presence of an organic quaternary ammonium salt, an inorganic acid salt of organic tertiary amines, or a macrocyclic polyether used as a catalyst, isolating the resulting 3-phenoxybenzaldehyde alkali metal or ammonium bisulfite adduct, and decomposing it by using an acid or a base, or by heating.
    Type: Grant
    Filed: August 16, 1977
    Date of Patent: July 24, 1979
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Masato Mizutani, Akio Higo, Nobuo Ohno, Hajime Hirai