Elaine G Yamaguchi

US Patent:

7867960, Jan 11, 2011

Filed:

Aug 31, 2006

Appl. No.:

11/515208

Inventors:

Elaine S. Yamaguchi - El Cerrito CA, US

Assignee:

Cherron Oronite Company LLC - San Ramon CA

International Classification:

A61K 9/00
B01D 19/04
C10M 163/00

US Classification:

508564, 508202, 508173

Abstract:

Disclosed is a method for forming an antiwear film on an internal engine component comprising: contacting a surface of an internal wearing component of the engine with a tetra-functional hydrolyzable silane compound of the general formula Si—Xor hydrolysis product thereof, wherein X is independently selected from the group consisting of hydroxyl, alkoxy, aryloxy, acyloxy, amino, monoalkyl amino and dialkyl amino; and hydrolyzing and condensing the tetra-functional silane to thereby form a film. Also disclosed are mixed silane films and the products produced by these methods.

US Patent:

8067346, Nov 29, 2011

Filed:

Aug 31, 2006

Appl. No.:

11/515209

Inventors:

Elaine S. Yamaguchi - El Cerrito CA, US

Assignee:

Chevron Oronite Company LLC - San Ramon CA

International Classification:

B01D 19/04
C10M 163/00
A61K 9/00
C10M 173/02

US Classification:

508364, 508202, 508173

Abstract:

Disclosed are lubricating oil compositions comprising a major amount of an oil of lubricating viscosity and a tetra-functional hydrolyzable silane compound of the general formula Si—Xor hydrolysis product thereof, wherein X is independently selected from the group consisting of hydroxyl, alkoxy, aryloxy, acyloxy, amino, monoalkyl amino and dialkyl amino.

US Patent:

8084404, Dec 27, 2011

Filed:

Jul 20, 2005

Appl. No.:

11/186118

Inventors:

Melanie F. Tobias - Pleasant Hill CA, US
Kenneth D. Nelson - Napa CA, US
Elaine S. Yamaguchi - El Cerrito CA, US
Vernon R. Small - Hercules CA, US

Assignee:

Chevron Oronite Company LLC - San Ramon CA

International Classification:

C10M 137/10
C10M 159/22
C10M 171/00

US Classification:

508436, 508574, 508577

Abstract:

The present invention is directed to a crankcase lubricating oil composition for protection of silver bearings in locomotive diesel engines comprising (A) a major amount of an oil of lubricating viscosity, and (B) a silver wear protection additive composition, and (C) one or more detergents. The silver wear protection additive composition of the present invention comprises a mixture of (i) a hydrocarbylamine salt of a di-alkyl di-thiophosphoric acid and (ii) a hydrocarbylamine salt of an alkyl acid phosphate.

US Patent:

8153566, Apr 10, 2012

Filed:

Sep 30, 2008

Appl. No.:

12/286390

Inventors:

Elaine S. Yamaguchi - Hercules CA, US

Assignee:

Cherron Oronite Company LLC - San Ramon CA

International Classification:

C10F 7/04
C10M 139/02
C10M 159/22

US Classification:

508202, 508204, 508460

Abstract:

A lubricating oil composition is disclosed which comprises (a) a major amount of an oil of lubricating viscosity, and (b) an oil-soluble tetra-functional hydrolyzable silane compound of the general formula Si—Xor a hydrolysis product thereof, wherein each X is independently a hydroxyl-containing group, hydrocarbyloxy-containing group, acyloxy-containing group, amino-containing group, monoalkyl amino-containing group or a dialkyl amino-containing group, and further wherein the lubricating oil composition is free of any zinc dialkyl dithiophosphate.

US Patent:

20100081589, Apr 1, 2010

Filed:

Sep 30, 2008

Appl. No.:

12/286377

Inventors:

Elaine S. Yamaguchi - Hercules CA, US

Assignee:

Chevron Oronite Company LLC - San Ramon CA

International Classification:

C10M 137/10
C10M 139/06
F01M 1/00

US Classification:

508108, 508384, 508370, 123 27 R, 123196 R, 12356811

Abstract:

A lubricating oil composition is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; and (b) an oil-soluble titanium compound of Formula I:wherein R, R, Rand Rare independently a C-Calkoxy group, and further wherein the lubricating oil composition is free of any zinc dialkyldithiophosphate.

US Patent:

20100081591, Apr 1, 2010

Filed:

Sep 30, 2008

Appl. No.:

12/286376

Inventors:

Elaine S. Yamaguchi - Hercules CA, US

Assignee:

Chevron Oronite Company LLC - San Ramon CA

International Classification:

C10M 133/04

US Classification:

508198, 508287, 508563

Abstract:

A lubricating oil composition comprising (a) a major amount of an oil of lubricating viscosity, (b) an ashless dispersant, (c) at least one metal-containing detergent, (d) an antioxidant, and (e) an anti-wear agent, wherein the lubricating oil composition is free of any zinc dialkyl dithiophosphate compound and is substantially free of any phosphorus content is disclosed.

US Patent:

20110143979, Jun 16, 2011

Filed:

Dec 15, 2009

Appl. No.:

12/653497

Inventors:

Gaurav Bhalla - Hercules CA, US
Elaine S. Yamaguchi - El Cerrito CA, US
Man Hon Tsang - Richmond CA, US

Assignee:

Chevron Oronite Company LLC - San Ramon CA

International Classification:

C10M 169/04
C10M 163/00

US Classification:

508268, 508506, 508398

Abstract:

A lubricating oil composition is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; (b) one or more non-halogen-containing oil-soluble titanium complexes comprising at least one ligand comprising an anion of a carboxylic acid; (c) one or more dispersants; and (d) one or more detergents, wherein the lubricating oil composition is free of any zinc dialkyldithiophosphate.

US Patent:

20110143980, Jun 16, 2011

Filed:

Dec 15, 2009

Appl. No.:

12/653498

Inventors:

Gaurav Bhalla - Hercules CA, US
Elaine S. Yamaguchi - El Cerrito CA, US
Man Hon Tsang - Richmond CA, US

Assignee:

Chevron Oronite Company LLC - San Ramon CA

International Classification:

C10M 169/04
C10M 163/00

US Classification:

508268, 508465

Abstract:

A lubricating oil composition is disclosed which comprises (a) a major amount of an oil of lubricating viscosity; and (b) one or more non-halogen-containing oil-soluble titanium complexes comprising at least one ligand selected from the group consisting of (i) an anion of an α-, β- or γ-hydroxycarbonyl compound; (ii) an anion of an α-, β- or γ-hydroxycarboxylic acid, amide or ester; (iii) an anion of an α-, β- or γ-aminocarboxylic acid; and (iv) an anion of an α-, β- or γ-keto acid.