Yahya D Hodjat

Location:

Oxford, MI

Industry:

Automotive

Work:

Standard Oil Jun 1982 - Jun 1983
Research Scientist
Gates Corporation Jun 1982 - Jun 1983
Core Technology Manager
Intercontinental Metals Jun 1981 - Jun 1982
Director of Operations

Education:

The Ohio State University 1977 - 1981
Doctorates, Doctor of Philosophy, Engineering Arya Mehr University of Technology 1968 - 1972
Bachelors, Bachelor of Science, Metallurgical Engineering

Skills:

Materials Science
Lean Manufacturing
Metallurgy
Continuous Improvement
Manufacturing
Automotive
Process Simulation
Six Sigma
Fmea
Inventor
Management
Apqp
Engineering
Product Development
Sheet Metal
Kaizen
Quality Management
Value Stream Mapping
Root Cause Analysis
Materials
Cross Functional Team Leadership
Manufacturing Engineering
5S
Design of Experiments
Machining
Process Engineering
Process Improvement
Engineering Management
R&D
Ppap
Quality System
Patents
Research
Spc
Operational Excellence
Industrial Engineering
Ts16949
Supply Chain Management
Dmaic
Castings
Iso
Manufacturing Operations Management
Program Management
Kanban

US Patent:

6348020, Feb 19, 2002

Filed:

Mar 14, 2000

Appl. No.:

09/525618

Inventors:

Yahya Hodjat - Oxford MI
Marc R. Cadarette - London, CA
John P. Roes - Strathroy, CA

Assignee:

The Gates Corporation - Denver CO

International Classification:

F16H 5536

US Classification:

474166, 474170, 72 82, 29894362

Abstract:

A hub having a bore, in accordance with the present invention, is spun-roll formed of a portion of an annular sheet metal disc. The hub is formed by radially displacing a portion of the annular sheet disc outward from the bore. The so formed hub that is integral to the annular sheet metal disc forms a web having a thickness equivalent to or not less than a thickness of the annular sheet metal disc before formation of the hub. The web may be used to spun-roll form a rim having a belt receiving portion and as such a one-piece spun roll formed pulley. The web may also be used to interconnect to a rim having a belt receiving portion as a separate piece from the hub and web. During the spinning process, a shaping roller is pressed against a bore of an annular sheet metal disc which is being rotated simultaneously. The shaping roller is moved progressively, radially outward, with or without axial oscillation, against the bore of the rotating disc which displaces a portion of metal in the form of an axially extending collar. The shaping roller include various surface configurations for forming any number of various hub shapes.

US Patent:

6386065, May 14, 2002

Filed:

Jul 25, 2000

Appl. No.:

09/625373

Inventors:

Yahya Hodjat - Oxford MI

Assignee:

The Gates Corporation - Denver CO

International Classification:

F16F 1510

US Classification:

74574, 474 94

Abstract:

The invention comprises a dual ring damper. The damper comprises an inner ring for connecting the damper to a crankshaft. It also comprises an outer inertial ring for contacting a belt or the like. A flexible elastomeric material is mechanically contained in an annular space between the inner ring and the outer ring. The inner surface of the outer ring and the outer surface of the inner ring each describe a complex, non-arcuate cooperating, profile or cross-section that mechanically fixes the elastomeric between them. The elastomeric does not use chemical adhesives to bond with either the inner or the outer ring, instead relying on mechanical containment between the rings. The elastomeric in the preferred embodiment comprises EPDM.

US Patent:

D459197, Jun 25, 2002

Filed:

May 18, 2001

Appl. No.:

29/142167

Inventors:

Yahya Hodjat - Oxford MI

Assignee:

The Gates Corporation - Denver CO

International Classification:

0805

US Classification:

D 8360

US Patent:

D459198, Jun 25, 2002

Filed:

May 24, 2001

Appl. No.:

29/142406

Inventors:

Yahya Hodjat - Oxford MI

Assignee:

The Gates Corporation - Denver CO

International Classification:

0805

US Classification:

D 8360

US Patent:

6505490, Jan 14, 2003

Filed:

Feb 28, 2001

Appl. No.:

09/797548

Inventors:

Yahya Hodjat - Oxford MI
John P. Roes - Strathroy, CA

Assignee:

The Gates Corporation - Denver CO

International Classification:

B21D 2200

US Classification:

72 84, 72 80

Abstract:

The invention comprises a method of forming a sheet metal cup without using a mandrel. A cup shaped blank is first produced having a relief on a rim or outer circumference. The blank is clamped in the spinning machine. The relief controls and facilitates the bending process, creating a uniform curve at a predetermined bending point. During the rolling process, a forming roller is engaged with rim, and is moved progressively parallel with an axis of rotation. As the forming roller moves, the rim is progressively bent from an orientation normal to an axis of rotation to a position parallel to the axis of rotation. The fully formed rim can then be punched to accommodate a bearing or shaft. This allows a small radius pulley to be formed without use of a mandrel.

US Patent:

6560837, May 13, 2003

Filed:

Jul 31, 2002

Appl. No.:

10/210297

Inventors:

Yahya Hodjat - Oxford MI
Lin Zhu - Rochester Hills MI
Leslie Cole - London, CA

Assignee:

The Gates Corporation - Denver CO

International Classification:

B25B 2714

US Classification:

29280, 29235, 29282, 29451

Abstract:

An assembly device for a shaft damper. The assembly device comprises a holding member for holding a damper. The holding member is releasably engaged with a pair of parallel elongate members. An actuator is connected to the elongate members and to a piston. A shaft damper is inserted into and temporarily held by the holding member. The holding member containing the shaft damper is inserted into a shaft a predetermined distance. The actuator then slidingly retracts the holding member while a pressing member at an end of the piston simultaneously holds the damper in the proper position in the shaft.

US Patent:

6572962, Jun 3, 2003

Filed:

Apr 12, 2001

Appl. No.:

09/834854

Inventors:

Yahya Hodjat - Oxford MI

Assignee:

The Gates Corporation - Denver CO

International Classification:

B32B 516

US Classification:

428323, 2282481

Abstract:

The invention comprises a joint formed by mechanical interaction of particles with the parts to be joined. The particles engage an interface surface of each part, creating a high friction condition that prevents further relative movement of the parts once they are assembled. The particles have a substantially flat or flake-like morphology. The surface of each particle is rough to enhance mechanical engagement with each interface surface. The flake-like shape prevents the particle from penetrating an elastomeric part, which would render the particle ineffective in the bonding process.

US Patent:

D481615, Nov 4, 2003

Filed:

Dec 11, 2002

Appl. No.:

29/172468

Inventors:

Yahya Hodjat - Oxford MI
Marc R. Cadarette - London, CA

Assignee:

The Gates Corporation - Denver CO

International Classification:

0899

US Classification:

D 8360