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Yahya Hodjat

age ~70

from Oxford, MI

Also known as:
  • Hodjat Yahya
  • Yahya D Hodjat
  • Yahya P Hodjat
410 Baldwin Rd, Oxford, MI 48371248-6280200

Yahya Hodjat Phones & Addresses

  • 410 Baldwin Rd, Oxford, MI 48371 • 248-6280200 • 248-9692626
  • 41 Baldwin Rd, Oxford, MI 48371
  • Utica, MI
  • 410 N Baldwin Rd, Oxford, MI 48371 • 248-8825197

Work

  • Company:
    Gates corporation
    Jun 1983 to 2012
  • Address:
    Rochester Hills, Michigan
  • Position:
    Core technology manager

Education

  • Degree:
    Ph.D.
  • School / High School:
    The Ohio State University
    1977 to 1981
  • Specialities:
    Metallurgical & Materials Engineering

Emails

Industries

Automotive

Resumes

  • Yahya Hodjat Photo 1

    Inventor, Scientist, Engineer, Manager

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  • Position:
    Core Technology Manager at Gates Corporation
  • Location:
    Greater Detroit Area
  • Industry:
    Automotive
  • Work:
    Gates Corporation - Rochester Hills, Michigan since Jun 1983
    Core Technology Manager

    Standard Oil Jun 1982 - Jun 1983
    Research Scientist

    Intercontinental Metals Jun 1981 - Jun 1982
    Director of Operations
  • Education:
    The Ohio State University 1977 - 1981
    Ph.D., Metallurgical & Materials Engineering
    Arya Mehr University of Technology 1968 - 1972
    B.S., Metallurgical Engineering

Us Patents

  • Internal Spun Hub And Method Of Making Same

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  • US Patent:
    6348020, Feb 19, 2002
  • Filed:
    Mar 14, 2000
  • Appl. No.:
    09/525618
  • Inventors:
    Yahya Hodjat - Oxford MI
    Marc R. Cadarette - London,
    John P. Roes - Strathroy,
  • 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.
  • Tensioner

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  • US Patent:
    2009011, May 7, 2009
  • Filed:
    Nov 1, 2007
  • Appl. No.:
    11/982090
  • Inventors:
    Yahya Hodjat - Oxford MI,
    Marc R. Cadarette - London,
  • International Classification:
    F16H 7/12
  • US Classification:
    474135
  • Abstract:
    A tensioner comprising a cantilever spring having a first arm () and a second arm (), the first arm and the second arm describing an included angle (α), a pulley () journalled to the first arm, a mounting portion (), and a resilient damping member () disposed between the first arm and the second arm for damping an arm vibration.
  • Shaft Damper

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  • US Patent:
    2003013, Jul 24, 2003
  • Filed:
    Jan 23, 2002
  • Appl. No.:
    10/057028
  • Inventors:
    Lin Zhu - Rochester Hills MI,
    Yahya Hodjat - Oxford MI,
    Marc Cadarette - London,
  • International Classification:
    F16C003/00
  • US Classification:
    464/180000
  • Abstract:
    The invention comprises a shaft damper having an inertial mass engaged with an elastomeric member within a shaft bore. The elastomeric member is contained in an annular space between a shaft inner surface and an outer surface of the inertial mass. A profile on the outer surface of the inertial mass enhances a mechanical bond with the elastomeric member. The elastomeric member and the inertial mass are disposed in the shaft in order to damp a bending vibration of the shaft.
  • Tensioning Idler

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  • US Patent:
    2003015, Aug 14, 2003
  • Filed:
    Feb 12, 2002
  • Appl. No.:
    10/075828
  • Inventors:
    Yahya Hodjat - Oxford MI,
    Keming Liu - Sterling Height MI,
    Alexander Serkh - Troy MI,
  • International Classification:
    F16D003/00
    F16H007/08
    F16F015/10
  • US Classification:
    474/101000, 474/094000, 074/574000
  • Abstract:
    The invention comprises a tensioning idler. An outer belt bearing ring is resiliently engaged to an inner ring. The belt bearing ring and inner ring each rotate about an axis of rotation. The belt bearing ring is connected to the inner ring with the resilient material whereby the belt bearing ring rotates about an axis of rotation that is eccentrically moveable in a plane with respect to an inner ring axis of rotation. The resilient material imparts a belt tension as the belt bearing ring rotates. The resilient material may comprise springs, compressible fluids, incompressible fluids, or elastomers or a combination of the foregoing. The tensioner is mounted on an engine, bracket, or other device.
  • Method Of Tensile Flow Forming

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  • US Patent:
    2003020, Oct 30, 2003
  • Filed:
    Apr 25, 2002
  • Appl. No.:
    10/133687
  • Inventors:
    Yahya Hodjat - Oxford MI,
  • International Classification:
    B21D005/00
  • US Classification:
    072/083000
  • Abstract:
    A method of flow forming in a tensile direction. More particularly, it comprises flowing the metal on the surface of a sheet (or plate) metal blank from a center radially outwards. A roller is initially engaged near or at the center of a rotating metal blank. The roller is then moved radially outward to the edge of the metal blank, gathering the metal as it moves. A mandrel tool surface is used to accumulate the gathered metal to form a predetermined shape at the edge of the workpiece, such as v-belt or multi-ribbed v-belt profile, or gear or sprocket tooth profile.
  • Method Of Forming A Sprocket

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  • US Patent:
    2004013, Jul 22, 2004
  • Filed:
    Jan 22, 2003
  • Appl. No.:
    10/349624
  • Inventors:
    Yahya Hodjat - Oxford MI,
  • International Classification:
    B21B015/00
  • US Classification:
    072/068000
  • Abstract:
    A method of forming a highly accurate sprocket or gear using a combination of spin forming and ironing. An edge of a metal blank disk is split and spin formed into a “T” shape using known methods. A profile, such as a toothed profile, is spin formed into the “T” shaped blank edge to form a sprocket or gear having initial rough dimensions. The spin formed sprocket is then ironed in an ironing die to achieve the final desired dimensions.
  • Load Spreader

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  • US Patent:
    2004023, Nov 25, 2004
  • Filed:
    May 19, 2004
  • Appl. No.:
    10/849274
  • Inventors:
    Michel Ozorak - St. Thomas,
    Trevor Armstrong - London,
    Yahya Hodjat - Oxford MI,
  • International Classification:
    F16H055/49
    F16H055/36
    F16H007/20
  • US Classification:
    474/199000, 474/170000
  • Abstract:
    A load spreader for use in pulley assemblies, where the load spreader engages the bearing and not the axle bolt, thereby allowing a single sized load spreader to be utilized with various sized axle bolts. The load spreader comprises a planar surface having a bore, and at least two arms disposed about the bore, with the arms extending substantially perpendicular from the planar surface which engage a bearing inner surface.
  • Sprocket

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  • US Patent:
    2006026, Nov 23, 2006
  • Filed:
    May 20, 2005
  • Appl. No.:
    11/133927
  • Inventors:
    Yahya Hodjat - Oxford MI,
  • International Classification:
    F16G 13/02
    F16H 55/30
  • US Classification:
    474152000
  • Abstract:
    A sprocket comprising a cast wheel () having a rim (), the rim having a toothed profile (), a ring () having a thickness and toothed profile () that substantially matches the rim toothed profile, the ring having a press fit to the rim, and the ring comprising a metallic material having a hardness greater than a hardness of the cast wheel.

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