Patents by Inventor Noboru Ishida

Noboru Ishida 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).

  • Metal deactivator and composition containing same
    Patent number: 4392968
    Abstract: The oxidation of a lubricating oil caused by metal components can be suppressed effectively by adding to the lubricating oil a compound represented by the formula ##STR1##
    Type: Grant
    Filed: July 30, 1981
    Date of Patent: July 12, 1983
    Assignee: Nippon Oil Company, Limited
    Inventors: Noboru Ishida, Harumichi Watanabe
  • 7-Oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid derivatives, their use and preparation
    Patent number: 4377591
    Abstract: 7-Oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid derivatives of formula (I): ##STR1## (in which:) R.sup.1 represents a hydrogen atom or an optionally substituted alkyl group;X represents an oxy group, a thio group, a sulphinyl group or a sulphonyl group;A represents a bivalent for trivalent saturated aliphatic hydrocarbon group;p is 1 (when A is bivalent) or 2 (when A is trivalent);R.sup.2 represents an azido, nitro or cyano group or one of the groups of formula ##STR2## m and n are the same or different and each is 0 or 1; R represents an amidino group or a group of formula R.sup.4, --N(R.sup.4).sub.2 or --YR.sup.4,B represents a group of formula ##STR3## D represents a group of formula ##STR4## (provided that, where m and n are both 1, the groups represented by B and D must be different);R.sup.4 represents a hydrogen atom or an alkyl group and, where there are 2 or more groups represented by R.sup.4, they may be the same or different, andY represents an oxygen atom or a sulphur atom; andR.sup.
    Type: Grant
    Filed: February 27, 1981
    Date of Patent: March 22, 1983
    Assignee: Sankyo Company, Limited
    Inventors: Tetsuo Hiraoka, Takeo Kobayashi, Noboru Ishida, Shinichi Sugawara
  • Electrical insulating oil compositions
    Patent number: 4324933
    Abstract: An electrical insulating oil composition consisting essentially of 50-85 parts by weight of a paraffinic or mixed base crude oil-derived electrical insulating oil, 50-15 parts by weight of a naphthenic base crude oil-derived electrical insulating oil, and 0.001-1.0% by weight of a hydrocarbon-derived pour point depressant, based on the total weight of said two oils.
    Type: Grant
    Filed: June 24, 1980
    Date of Patent: April 13, 1982
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Shoji Kimura, Noboru Ishida, Midori Masunaga, Yoshiki Kohno
  • Rust inhibitors and compositions of same
    Patent number: 4273673
    Abstract: There is disclosed a rust inhibitor comprising glycerol-1-alkylphenoxy-3-glycerol ether of the formula ##STR1## wherein R is an alkyl group of C.sub.6-18. A composition having rust preventing effect may be obtained by adding the rust inhibitor to a mineral oil.
    Type: Grant
    Filed: August 23, 1979
    Date of Patent: June 16, 1981
    Assignee: Nippon Oil Company Ltd.
    Inventors: Shoji Kimura, Noboru Ishida
  • Rust inhibitors and compositions of same
    Patent number: 4247414
    Abstract: There is disclosed a rust inhibitor comprising glycerol-1-alkylphenoxy-3-ethyleneglycol ether of the formula ##STR1## wherein R is an alkyl group of C.sub.6-18. A composition having rust preventing effect may be obtained by adding the rust inhibitor to a mineral oil.
    Type: Grant
    Filed: August 1, 1979
    Date of Patent: January 27, 1981
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Shoji Kimura, Noboru Ishida
  • Rust inhibitors and compositions of same
    Patent number: 4247415
    Abstract: There is disclosed a rust inhibitor consisting of glycerol alkyl phenylether of the formula ##STR1## wherein R is an alkyl group of C.sub.6-18. A composition having rust preventing result may be obtained by adding the rust inhibitor to a mineral oil.
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: January 27, 1981
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Shoji Kimura, Noboru Ishida
  • Electrical insulating oil compositions
    Patent number: 4189391
    Abstract: An electrical insulating oil composition consisting essentially of (I) 50-95 parts by weight of a mineral oil-derived electrical insulating oil, (II) 5-50 parts by weight of at least one oil selected from diarylalkanes, polybutene, an oil having a specified refractive index and a hydrocarbon oil-derived hydrofined oil, and (III) 0.001-1.0% by weight of a hydrocarbon-derived pour point depressant, based on the total weight of the oils (I) and (II).
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: February 19, 1980
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Shoji Kimura, Noboru Ishida, Midori Masunaga, Yoshiki Kohno