Patents by Inventor Edward I. Aoyagi

Edward I. Aoyagi 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: 7012045
    Abstract: A method of improving the brake and clutch capacity of a functional fluid comprising adding a friction-modifying amount of a polyalkenyl sulfonate to the functional fluid, wherein the polyalkenyl sulfonate is an alkali metal or alkaline earth metal salt of a polyalkene sulfonic acid derived from a mixture of polyalkenes comprising greater than about 20 mole percent alkyl vinylidene and 1,1-dialkyl isomers.
    Type: Grant
    Filed: May 4, 2004
    Date of Patent: March 14, 2006
    Assignee: Chevron Oronite Company LLS
    Inventors: Edward I. Aoyagi, Paul F. Vartanian
  • Publication number: 20040209787
    Abstract: A method of improving the brake and clutch capacity of a functional fluid comprising adding a friction-modifying amount of a polyalkenyl sulfonate to the functional fluid, wherein the polyalkenyl sulfonate is an alkali metal or alkaline earth metal salt of a polyalkene sulfonic acid derived from a mixture of polyalkenes comprising greater than about 20 mole percent alkyl vinylidene and 1,1-dialkyl isomers.
    Type: Application
    Filed: May 4, 2004
    Publication date: October 21, 2004
    Applicant: Chevron Oronite Company LLC
    Inventors: Edward I. Aoyagi, Paul F. Vartanian
  • Publication number: 20040102339
    Abstract: A method of improving the brake and clutch capacity of a functional fluid comprising adding a friction-modifying amount of a polyalkenyl sulfonate to the functional fluid, wherein the polyalkenyl sulfonate is an alkali metal or alkaline earth metal salt of a polyalkylene sulfonic acid derived from a mixture of polyalkylenes comprising greater than about 20 mole percent alkyl vinylidene and 1,1-dialkyl isomers.
    Type: Application
    Filed: November 13, 2003
    Publication date: May 27, 2004
    Applicant: Chevron Oronite Company LLC
    Inventors: Edward I. Aoyagi, Paul F. Vartanian
  • Publication number: 20040018946
    Abstract: A method of improving the brake and clutch capacity of a functional fluid comprising adding a friction-modifying amount of a polyalkenyl sulfonate to the functional fluid, wherein the polyalkenyl sulfonate is an alkali metal or alkaline earth metal salt of a polyalkylene sulfonic acid derived from a mixture of polyalkylenes comprising greater than about 20 mole percent alkyl vinylidene and 1,1-dialkyl isomers.
    Type: Application
    Filed: July 26, 2002
    Publication date: January 29, 2004
    Inventors: Edward I. Aoyagi, Paul F. Vartanian
  • Patent number: 6399548
    Abstract: A method is provided for protecting a copper-containing metal from loss of copper when in contact with a functional fluid composition containing water, the method comprising employing in the functional fluid an oil-soluble dimercaptothiadiazole compound or derivative thereof in an amount sufficient to protect against loss of copper.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: June 4, 2002
    Assignee: Chevron Oronite Company LLC
    Inventors: Paul F. Vartanian, Edward I. Aoyagi, John E. Huron, Kenneth Lee McLeod
  • Patent number: 4477462
    Abstract: Compounds of the formula: ##STR1## wherein R.sup.1 is alkyl having 3 to 6 carbon atoms or benzyl where the phenyl ring is optionally substituted with 1 to 2 substituents each independently selected from halogen, cyano, nitro, trihalomethyl and lower alkyl; and Y is chloro or bromo, are fungicidal.
    Type: Grant
    Filed: May 31, 1983
    Date of Patent: October 16, 1984
    Assignee: Chevron Research Company
    Inventor: Edward I. Aoyagi
  • Patent number: 4477459
    Abstract: Compounds of the formula: ##STR1## wherein R is lower alkyl or lower alkenyl are fungicidal.
    Type: Grant
    Filed: July 29, 1983
    Date of Patent: October 16, 1984
    Assignee: Chevron Research Company
    Inventor: Edward I. Aoyagi
  • Patent number: 4474797
    Abstract: Compounds of the formula: ##STR1## wherein R.sup.1 is vinyl, 2-haloethyl or the group --CH.sub.2 CH.sub.2 OS(O).sub.2 CH.sub.3 ; and Y is chloro or bromo are fungicidal.
    Type: Grant
    Filed: May 31, 1983
    Date of Patent: October 2, 1984
    Assignee: Chevron Research Company
    Inventor: Edward I. Aoyagi
  • Patent number: 4466962
    Abstract: 1-Alkyl-5-substituted-4-chloropyrazole-3-yl-(thio)phosphates and (thio)phosphonates of the formula ##STR1## wherein R is lower alkyl; R.sup.1 is lower alkoxy; R.sup.2 is lower alkyl or lower alkoxy; X is chloro or the group --SR.sup.3 wherein R.sup.3 is lower alkyl; and Y is sulfur or oxygen are insecticidal, and are particularly effective against cabbage looper.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: August 21, 1984
    Assignee: Chevron Research Company
    Inventor: Edward I. Aoyagi
  • Patent number: 4465690
    Abstract: Compounds of the formula: ##STR1## wherein X is hydrogen, halogen, lower alkyl, lower alkoxy, nitro, cyano, lower alkylthio, trihalomethyl or amino; Y is halogen; z is 0, 1 or 2; and R is lower alkyl, lower alkenyl or lower alkynyl, all optionally substituted with 1 to 3 halogen atoms, are fungicidal or intermediates in the preparation of fungicides.
    Type: Grant
    Filed: August 26, 1982
    Date of Patent: August 14, 1984
    Assignee: Chevron Research Company
    Inventor: Edward I. Aoyagi
  • Patent number: 4465675
    Abstract: Compounds of the formula: ##STR1## wherein R is lower alkyl; R.sup.1 is lower alkoxy or lower alkylthio; R.sup.2 is lower alkyl or lower alkoxy; R.sup.3 is lower alkyl; and Y is sulfur or oxygen, possess fungicidal and insecticidal activity.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: August 14, 1984
    Assignee: Chevron Research Company
    Inventor: Edward I. Aoyagi
  • Patent number: 4450278
    Abstract: Compounds of the formula: ##STR1## wherein Y is chloro or bromo and Z is chloro, bromo or the group --SCH.sub.2 CH.sub.2 OH are intermediates in the synthesis of corresponding 1-methyl-3,4-dihalo-5-substituted thio, sulfinyl or sulfonyl pyrazole fungicides.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: May 22, 1984
    Assignee: Chevron Research Company
    Inventor: Edward I. Aoyagi
  • Patent number: 4435416
    Abstract: Compounds of the formula: ##STR1## wherein Y is chloro or bromo; X is --S--, --SO-- or --SO.sub.2 --; and R.sub.1 and R.sub.2 are independently hydrogen, alkyl, cycloalkyl, lower alkenyl of 3 or more carbon atoms, alkylene carbalkoxy or aryl or aralkyl optionally substituted with one or two substituents each independently selected from halogen, nitro, cyano, lower alkyl, lower alkoxy, trihalo substituted methyl and phenoxy are fungicidal and/or intermediates in the preparation of fungicides.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: March 6, 1984
    Assignee: Chevron Research Company
    Inventor: Edward I. Aoyagi
  • Patent number: 4365989
    Abstract: Compounds of the formula: ##STR1## wherein R and R.sup.1 are independently lower alkyl or R and R.sup.1 are joined to form a cycloalkyl group of 5 to 8 carbon atoms; R.sup.2 is hydrogen or chloro; and R.sup.3 is hydrogen, halogen or --SR.sup.4 wherein R.sup.4 is lower alkyl, phenyl or phenyl substituted with 1 to 3 of the same or different substituents selected from halogen, nitro, lower alkyl or lower alkyl substituted with 1 to 3 halogens with the proviso that when R.sup.2 is chloro, R.sup.3 is not --SR.sup.4, bromo, fluorine or iodine, possess good fungicidal activity. Moreover, some of the compounds of this invention are active as algicides and herbicides.
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: December 28, 1982
    Assignee: Chevron Research Company
    Inventor: Edward I. Aoyagi
  • Patent number: 4335133
    Abstract: Compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 are alkyl or --CH.sub.2 --.sub.n wherein n=4 through 7; X is sulfur or NR.sup.3 wherein R.sup.3 is alkyl, alkenyl, alkynyl or cycloalkyl; Ar is an aromatic group of 6 to 12 carbon atoms substituted with 1 to 5 halo groups, 2 nitro groups, or 1 to 5 haloalkyl groups have bactericidal and fungicidal activity.
    Type: Grant
    Filed: November 6, 1980
    Date of Patent: June 15, 1982
    Assignee: Chevron Research Company
    Inventor: Edward I. Aoyagi
  • Patent number: 4326876
    Abstract: Compounds of the following formula have herbicidal activity: ##STR1## wherein X and Y are hydrogen or halo; R.sup.2 and R.sup.3 are alkyl or are joined to form --CH.sub.2 --.sub.n, n=2 through 7; R is hydrogen, haloacetyl, alkyl, alkoxyalkyl or N-alkylcarbamoyl and R.sup.1 is alkyl, alkenyl, alkynyl, cycloalkyl, polycycloalkyl, alkoxy-alkyl, cyanoalkyl or cyanoalkenyl; with the proviso that when R and R.sup.1 are both alkyl, each contains at least 3 carbon atoms.
    Type: Grant
    Filed: January 28, 1980
    Date of Patent: April 27, 1982
    Assignee: Chevron Research Company
    Inventor: Edward I. Aoyagi
  • Patent number: 4271306
    Abstract: Compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 are alkyl or --CH.sub.2 --.sub.n wherein n=4 through 7; X is sulfur or NR.sup.3 wherein R.sup.3 is alkyl, alkenyl, alkynyl or cycloalkyl; Ar is an aromatic group of 6 to 12 carbon atoms substituted with 1 to 5 halo groups, 2 nitro groups, or 1 to 5 haloalkyl groups have bactericidal and fungicidal activity.
    Type: Grant
    Filed: January 28, 1980
    Date of Patent: June 2, 1981
    Assignee: Chevron Research Company
    Inventor: Edward I. Aoyagi