Patents by Inventor Mark E. Okazaki
Mark E. Okazaki 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).
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Publication number: 20130085091Abstract: An industrial oil composition comprises a major amount of an ester base oil comprised of at least one diester or triester species having a vicinal diester substituent and at least one additive. The use of such esters can provide biodegradable industrial oils having improved viscosity index, additive solvency, or both.Type: ApplicationFiled: September 29, 2011Publication date: April 4, 2013Applicant: Chevron U.S.A. Inc.Inventors: Nicole A. Ketterer, Mark E. Okazaki, Saleh A. Elomari
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Publication number: 20130029893Abstract: Provided is a process for preparing a turbine oil formulation comprised of a base oil selected from the group consisting of Group II, III and IV base oils and mixtures thereof, and an ester component comprised of at least one diester or triester species having ester links on adjacent carbons. The formulation exhibits less than 6 mg of sludge/100 ml of turbine oil and is imminently suitable for use as a turbine oil.Type: ApplicationFiled: July 27, 2011Publication date: January 31, 2013Applicant: Chevron U.S.A.Inventors: Mark E. Okazaki, Nicole A. Ketterer
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Publication number: 20130029891Abstract: Provided is a turbine oil formulation comprised of a base oil selected from the group consisting of Group II, III and IV base oils and mixtures thereof, and an ester component comprised of at least one diester or triester species having ester links on adjacent carbons. The formulation exhibits less than 6 mg of sludge/100 ml of turbine oil, and is imminently suitable for use as a turbine oil.Type: ApplicationFiled: July 27, 2011Publication date: January 31, 2013Applicant: Chevron U.S.A.Inventors: Mark E. Okazaki, Nicole A. Ketterer
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Patent number: 8093188Abstract: An ashless lubricating oil, comprising a base oil having a viscosity index greater than 150, wherein the base oil is made from a blend of petroleum-based wax and Fischer-Tropsch derived wax.Type: GrantFiled: December 23, 2009Date of Patent: January 10, 2012Assignee: Chevron U.S.A. Inc.Inventors: William Loh, John M. Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Mark E. Okazaki
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Patent number: 7947634Abstract: A process to make a lubricant, comprising: blending together: a) about 0.001 to about 2 wt % of a mixture of amine phosphates; b) about 0.001 to about 0.5 wt % of an alkenyl succinic compound selected from the group consisting of an acid half ester, an anhydride, an acid, and mixtures thereof; c) about 0.10 to about 20 wt % of a solubility improver having an aniline point less than 20° C.; and d) about 60 to about 98.5 wt % of a lubricating base oil selected from the group consisting of an API Group II or Group III base oil having greater than 65% paraffinic chain carbons by ASTM D 3238, an API Group IV base oil, a polyinternal olefin base oil, a hydroisomerized Fischer-Tropsch wax, a Fischer-Tropsch oligomerized olefin base oil, and mixtures thereof; wherein the lubricant passes the 4 hour TORT B rust test.Type: GrantFiled: September 24, 2009Date of Patent: May 24, 2011Assignee: Chevron U.S.A. Inc.Inventor: Mark E. Okazaki
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Patent number: 7910528Abstract: There is provided a finished lubricant, comprising: a) a major amount of hydroisomerized Fischer-Tropsch wax, Fischer-Tropsch oligomerized olefins, or mixture thereof; and b) between about 0.10 and about 5 wt % of a solubility improver having an aniline point less than 10° C.; wherein the finished lubricant passes the 4 hour TORT B rust test.Type: GrantFiled: September 24, 2009Date of Patent: March 22, 2011Assignee: Chevron U.S.A. Inc.Inventor: Mark E. Okazaki
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Patent number: 7906466Abstract: A finished lubricant having a kinematic viscosity at 40° C. between about 90 and 1700 cSt that passes the 4 hour TORT B rust test, comprising: a) greater than 65 weight percent API Group III base oil, API Group IV base oil, polyinternal olefin base oil, or mixtures thereof; and b) between about 0.10 wt % and about 5 wt % solubility improver. The solubility improver has an aniline point less than 50° C., or even lower. The finished lubricant can additionally comprise a mixture of amine phosphates.Type: GrantFiled: December 30, 2009Date of Patent: March 15, 2011Assignee: Chevron U.S.A. Inc.Inventor: Mark E. Okazaki
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Publication number: 20100191026Abstract: An ashless lubricating oil, comprising a base oil having a viscosity index greater than 150, wherein the base oil is made from a blend of petroleum-based wax and Fischer-Tropsch derived wax.Type: ApplicationFiled: December 23, 2009Publication date: July 29, 2010Inventors: William Loh, John M. Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Mark E. Okazaki
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Publication number: 20100173809Abstract: A finished lubricant having a kinematic viscosity at 40° C. between about 90 and 1700 cSt that passes the 4 hour TORT B rust test, comprising: a) greater than 65 weight percent API Group III base oil, API Group IV base oil, polyinternal olefin base oil, or mixtures thereof; and b) between about 0.10 wt % and about 5 wt % solubility improver. The solubility improver has an aniline point less than 50° C., or even lower. The finished lubricant can additionally comprise a mixture of amine phosphates.Type: ApplicationFiled: December 30, 2009Publication date: July 8, 2010Inventor: Mark E. Okazaki
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Patent number: 7732386Abstract: A rust inhibitor providing a pass in the TORT B rust test, comprising a solubility improver, a mixture of amine phosphates, and an alkenyl succinic compound. A finished lubricant comprising the rust inhibitor and a lubricating base oil. A finished lubricant having a kinematic viscosity at 40° C. between about 90 and 1700 cSt that passes the TORT B rust test, comprising a highly paraffinic base oil and a solubility improver having an aniline point less than 50° C. A finished lubricant that passes the TORT B rust test, comprising a Fischer-Tropsch wax, oligomerized olefins, or mixture thereof; and a solubility improver. A process for making a lubricant, comprising blending together: a) a mixture of amine phosphates, b) an alkenyl succinic compound, and c) a highly paraffinic lubricating base oil. A method of improving the rust inhibition of a lubricating oil by incorporating a solubility improver having an aniline point <10° C.Type: GrantFiled: October 25, 2005Date of Patent: June 8, 2010Assignee: Chevron U.S.A. Inc.Inventor: Mark E. Okazaki
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Publication number: 20100105587Abstract: A process to make a lubricant, comprising: blending together: a) about 0.001 to about 2 wt % of a mixture of amine phosphates; b) about 0.001 to about 0.5 wt % of an alkenyl succinic compound selected from the group consisting of an acid half ester, an anhydride, an acid, and mixtures thereof; c) about 0.10 to about 20 wt % of a solubility improver having an aniline point less than 20° C.; and d) about 60 to about 98.5 wt % of a lubricating base oil selected from the group consisting of an API Group II or Group III base oil having greater than 65% paraffinic chain carbons by ASTM D 3238, an API Group IV base oil, a polyinternal olefin base oil, a hydroisomerized Fischer-Tropsch wax, a Fischer-Tropsch oligomerized olefin base oil, and mixtures thereof; wherein the lubricant passes the 4 hour TORT B rust test.Type: ApplicationFiled: September 24, 2009Publication date: April 29, 2010Inventor: Mark E. Okazaki
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Patent number: 7683015Abstract: A method of improving the rust inhibition of a lubricating oil by incorporating a solubility improver having an aniline point less than 10° C. A method of improving the rust inhibition of a lubricating oil by incorporating a solubility improver to enable the lubricating oil to meet the requirements of the MIL-PRF-17331J specification. A method of improving the rust inhibition of a lubricating oil by incorporating a solubility improver, a mixture of mono and diacid amine phosphate salts, and a alkenyl succinic compound into the lubricating oil.Type: GrantFiled: October 23, 2008Date of Patent: March 23, 2010Assignee: Chevron U.S.A. Inc.Inventor: Mark E. Okazaki
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Patent number: 7662271Abstract: A lubricating oil (made from Group III base oil having a sequential number of carbon atoms) having a VI between 155 and 300, a RPVOT greater than 680 minutes, and a kinematic viscosity at 40° C. from 19.8 cSt to 748 cSt. A lubricating oil having a high VI and high RPVOT comprising: a) a Group III base oil with a sequential number of carbon atoms, and defined cycloparaffin composition or low traction coefficient, b) an antioxidant additive concentrate and c) no VI improver. A process comprising: a) hydroisomerization dewaxing of a waxy feed, b) fractionating the produced base oil, c) selecting a fraction having a VI greater than 150, and a high level of molecules with cycloparaffinic functionality or a low traction coefficient, and d) blending the fraction with an antioxidant additive concentrate. Also, a method of improving the oxidation stability of a lubricating oil.Type: GrantFiled: December 21, 2005Date of Patent: February 16, 2010Assignee: Chevron U.S.A. Inc.Inventors: William Loh, John Rosenbaum, Nancy J. Bertrand, Patricia Lemay, Rawls Frazier, Mark E. Okazaki
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Patent number: 7655133Abstract: An ashless lubricating oil, comprising a base oil having greater than 90 wt % saturates, less than 10 wt % aromatics, a viscosity index greater than 130, low sulfur, and a sequential number of carbon atoms. The lubricating oil has a VI between 155 and 300, greater than 680 minutes in a rotary pressure vessel oxidation test, and a kinematic viscosity at 40° C. from 19.8 to 748 cSt. An ashless paper machine oil, comprising a base oil having a sequential number of carbon atoms, wherein the oil has a defined viscosity index and high oxidation stability. Also, an ashless lubricating oil, comprising a base oil having a viscosity index greater than 150, wherein the base oil is made from a blend of petroleum-based wax and Fischer-Tropsch derived wax.Type: GrantFiled: November 25, 2008Date of Patent: February 2, 2010Assignee: Chevron U.S.A. Inc.Inventors: William Loh, John M. Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Rawls H. Frazier, Mark E. Okazaki
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Patent number: 7651986Abstract: A finished lubricant having a kinematic viscosity at 40° C. between about 90 and 1700 cSt that passes the TORT B rust test, comprising a highly paraffinic base oil and a solubility improver having an aniline point less than 50° C. A finished lubricant that passes the TORT B rust test, comprising a Fischer-Tropsch wax, oligomerized olefins, or mixture thereof; and a solubility improver. A process for making a lubricant, comprising blending together: a) a mixture of amine phosphates, b) an alkenyl succinic compound, and c) a highly paraffinic lubricating base oil.Type: GrantFiled: October 23, 2008Date of Patent: January 26, 2010Assignee: Chevron U.S.A. Inc.Inventor: Mark E. Okazaki
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Patent number: 7651985Abstract: A method for improving the oxidation stability of an ashless hydraulic fluid or an ashless paper machine oil, comprising: a. selecting a base oil having greater than 90 wt % saturates, less than 10 wt % aromatics, a base oil viscosity index greater than 120, less than 0.03 wt % sulfur, a sequential number of carbon atoms, greater than 35 wt % total molecules with cycloparaffinic functionality, and a ratio of molecules with monocycloparaffinic functionality to molecules with multicycloparaffinic functionality greater than 2.1; and b. replacing a portion of an original base oil in the ashless oil with the selected base oil to produce an improved ashless lubricating oil; wherein the improved ashless lubricating oil has a result in the rotary pressure vessel oxidation test that is at least 50 minutes greater than the result in the rotary pressure oxidation test of the ashless hydraulic fluid or ashless paper machine oil.Type: GrantFiled: August 6, 2008Date of Patent: January 26, 2010Assignee: Chevron U.S.A. Inc.Inventors: William Loh, John M. Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Rawls Frazier, Mark E. Okazaki
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Patent number: 7569524Abstract: A process for making an ashless hydraulic fluid or paper machine oil comprising a) hydroisomerization dewaxing, b) fractionating, c) selecting a fraction having a very high VI, and a high level of molecules with cycloparaffinic functionality, and d) blending the fraction with an ashless antioxidant. A process for making ashless paper machine oil, comprising: a. selecting two lubricating base oils both having a consecutive number of carbon atoms, greater than 35 wt % total molecules with cycloparaffinic functionality, and a viscosity index greater than 150; b. blending the two lubricating base oils with an ashless antioxidant additive concentrate and no viscosity index improver to make an ashless paper machine oil; wherein the ashless paper machine oil has a result of greater than 680 minutes in the rotary pressure vessel oxidation test.Type: GrantFiled: August 6, 2008Date of Patent: August 4, 2009Assignee: Chevron U.S.A. Inc.Inventors: William Loh, John M. Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Rawls Frazier, Mark E. Okazaki
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Patent number: 7547666Abstract: An ashless hydraulic fluid or paper machine oil having a VI between 155 and 300, a RPVOT greater than 680 minutes, and a kinematic viscosity at 40° C. from 19.8 cSt to 748 cSt. An ashless hydraulic fluid or paper machine oil having a high VI and high RPVOT comprising: a) a Group III base oil with a sequential number of carbon atoms, and defined cycloparaffin composition or low traction coefficient, b) an ashless antioxidant additive concentrate, and c) low amount of VI improver. A process for making an ashless hydraulic fluid or paper machine oil comprising a) hydroisomerization dewaxing, b) fractionating, c) selecting a fraction having a very high VI, and a high level of molecules with cycloparaffinic functionality or a low traction coefficient, and d) blending the fraction with an ashless antioxidant. Also, a method of improving the oxidation stability of an ashless hydraulic fluid or paper machine oil.Type: GrantFiled: December 21, 2005Date of Patent: June 16, 2009Assignee: Chevron U.S.A. Inc.Inventors: William Loh, John Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Rawls Frazier, Mark E. Okazaki
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Publication number: 20090075850Abstract: An ashless lubricating oil, comprising a base oil having greater than 90 wt % saturates, less than 10 wt % aromatics, a viscosity index greater than 130, low sulfur, and a sequential number of carbon atoms. The lubricating oil has a VI between 155 and 300, greater than 680 minutes in a rotary pressure vessel oxidation test, and a kinematic viscosity at 40° C. from 19.8 to 748 cSt. An ashless paper machine oil, comprising a base oil having a sequential number of carbon atoms, wherein the oil has a defined viscosity index and high oxidation stability. Also, an ashless lubricating oil, comprising a base oil having a viscosity index greater than 150, wherein the base oil is made from a blend of petroleum-based wax and Fischer-Tropsch derived wax.Type: ApplicationFiled: November 25, 2008Publication date: March 19, 2009Inventors: William Loh, John Rosenbaum, Nancy J. Bertrand, Patricia LeMay, Rawls Frazier, Mark E. Okazaki
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Publication number: 20090042754Abstract: A method of improving the rust inhibition of a lubricating oil by incorporating a solubility improver having an aniline point less than 10° C. A method of improving the rust inhibition of a lubricating oil by incorporating a solubility improver to enable the lubricating oil to meet the requirements of the MIL-PRF-17331J specification. A method of improving the rust inhibition of a lubricating oil by incorporating a solubility improver, a mixture of mono and diacid amine phosphate salts, and a alkenyl succinic compound into the lubricating oil.Type: ApplicationFiled: October 23, 2008Publication date: February 12, 2009Inventor: Mark E. Okazaki