Patents by Inventor Hiroshi Jibiki

Hiroshi Jibiki 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).

  • Epoxy resin compositions including novel phenol novolak condensates produced from bis(methoxymethyl)biphenyls
    Patent number: 5945501
    Abstract: A bis(methoxymethyl)biphenyl having the formula (I): ##STR1## which is capable of producing by a dehalogenating coupling of a halogenated methoxymethylbenzene and which is useful as an intermediate for a phenol novolak condensate, an epoxy resin curing agent, an epoxy resin composition, or a phenol resin composition.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: August 31, 1999
    Assignees: UBE Industries, Ltd., Meiwa Plastic Industries
    Inventors: Katuhiko Okazaki, Mikito Kashima, Yumiki Noda, Hiroshi Jibiki, Takashi Honma
  • Phenol novolak condensate and bis(methoxymethyl)biphenyl for production thereof
    Patent number: 5612442
    Abstract: A bis(methoxymethyl)biphenyl having the formula (I): ##STR1## which is capable of producing by a dehalogenating coupling of a halogenated methoxymethylbenzene and which is useful as an intermediate for a phenol novolak condensate, an epoxy resin curing agent, an epoxy resin composition, or a phenol resin composition.
    Type: Grant
    Filed: September 19, 1995
    Date of Patent: March 18, 1997
    Assignees: Ube Industries, Ltd., Meiwa Plastic Industries, Ltd.
    Inventors: Katuhiko Okazaki, Mikito Kashima, Yumiki Noda, Hiroshi Jibiki, Takashi Honma
  • Orotic acid derivatives
    Patent number: 4400508
    Abstract: Novel orotic acid derivatives useful as agricultural chemicals or intermediates thereof are disclosed. The orotic acid derivatives are represented by the formula ##STR1## where Me is an alkali metal, R.sup.1 is an alkyl group of from 1 to 4 carbon atoms, an allyl group, a cyclohexyl group, a benzyl group, or a group ##STR2## (where R.sup.2 is an alkyl group of from 1 to 4 carbon atoms, an alkoxyl group of from 1 to 4 carbon atoms or a halogen atom and n is 0, 1, 2 or 3), m is an integer of 1 or 2, and X is a chlorine, bromine or iodine atom or a group --COR.sup.0 (where R.sup.0 is an alkyl group of from 1 to 4 carbon atoms or a phenyl group) when m is 1, and a group --COO.sup.- when m is 2.
    Type: Grant
    Filed: November 9, 1981
    Date of Patent: August 23, 1983
    Assignee: UBE Industries, Ltd.
    Inventors: Kiyoshi Fukui, Noboru Kakeya, Hiroshi Jibiki, Fumio Matsuo
  • Hydantoin derivatives
    Patent number: 4363916
    Abstract: Hydantoin derivatives disclosed in the present application are represented by the formula ##STR1## wherein, R.sup.1 represents a hydrogen atom, an alkyl group of from 1 to 4 carbon atoms, an allyl group, a cyclohexyl group, a benzyl group or a group ##STR2## (where R.sup.2 is an alkyl group of from 1 to 4 carbon atoms, an alkoxy group of from 1 to 4 carbon atoms, a halogen atom or a nitro group, and n is 0, 1, 2 or 3), X.sup.1 is an alkoxycarbonyl group of from 2 to 5 carbon atoms, a benzoyl group, an aliphatic acyl group of from 2 to 5 carbon atoms or a cyano group, and Y is an alkoxycarbonyl group of from 2 to 5 carbon atoms or an aliphatic acyl group of from 2 to 5 carbon atoms. The hydantoin derivatives are useful as agricultural chemicals e.g. bactericides or intermediates thereof.
    Type: Grant
    Filed: September 30, 1981
    Date of Patent: December 14, 1982
    Assignee: Ube Industries, Ltd.
    Inventors: Kiyoshi Fukui, Noboru Kakeya, Hiroshi Jibiki, Junichiro Kita