Resumes
Resumes
Robert Biskeborn
View pageLocation:
Vereinigte Staaten
Robert Biskeborn Phones & Addresses
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30 Janets Ct, Hollister, CA 95023 (831) 636-9510
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1158 Stony Brook Dr, Hollister, CA 95023
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2010 Highland Dr, Hollister, CA 95023
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Chatham, NJ
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Pawling, NY
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New York, NY
Publications
Us Patents
Method For Mass Producing Partial Width Linear Tape Recording Head
View pageUS Patent:
6341416, Jan 29, 2002
Filed:
Nov 9, 1998
Appl. No.:
09/188997
Inventors:
Robert Glenn Biskeborn - Hollister CA
James Howard Eaton - Morgan Hill CA
James Howard Eaton - Morgan Hill CA
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
G11B 542
US Classification:
2960312, 2960306
Abstract:
A dimple magnetic recording head in a transducer assembly for linear tape drives haviang a flat transducing surface extending laterally a partial width of the magnetic recording tape is mass produced by lapping a row of transducers on a substrate to form a flat transducing surface. The row of substrate elements is then diced into separate substrate elements. Two parallel, spaced apart tape support surfaces are provided extending laterally the full width of the tape, and one of the diced substrate elements is mounted intermediate the tape support surfaces with the flat transducing surface exposed for forming a tape facing surface.
Serpentine Resistive Shunt For Mr Heads Having Conductive Shields
View pageUS Patent:
6344952, Feb 5, 2002
Filed:
Aug 25, 2000
Appl. No.:
09/648169
Inventors:
Robert Glenn Biskeborn - Hollister CA
Tsung Yuan Chen - San Jose CA
Michael J. Doscher - Morgan Hill CA
Peter V. Koeppe - San Diego CA
James Devereaux Jarratt - San Jose CA
Tsung Yuan Chen - San Jose CA
Michael J. Doscher - Morgan Hill CA
Peter V. Koeppe - San Diego CA
James Devereaux Jarratt - San Jose CA
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
G11B 533
US Classification:
360319
Abstract:
A read element for a tape drive system is disclosed. The read element generally comprises a magneto-resistive sensor electrically coupled to first and second leads and at least one electrically conductive magnetic shield proximate the magneto-resistive element. A resistor is electrically connected to the conductive magnetic shield and to one or more of the first and second leads. The resistor is disposed between the first and second leads. The resistor continuously discharges electric charge that builds up on the conductive magnetic shield. The resistor typically has a resistance that is large enough to protect against noise due electrical shorting of the conductive magnetic shield and small enough to prevent a build-up of electric charge on the shield.
Precision Bonding Method And Apparatus
View pageUS Patent:
6468376, Oct 22, 2002
Filed:
Jan 3, 2001
Appl. No.:
09/754498
Inventors:
Robert Glenn Biskeborn - Hollister CA
Annayya P. Deshpande - San Jose CA
Calvin Shyhjong Lo - Saratoga CA
Artemio Juan Torres - Milpitas CA
Annayya P. Deshpande - San Jose CA
Calvin Shyhjong Lo - Saratoga CA
Artemio Juan Torres - Milpitas CA
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
B30B 1500
US Classification:
156228, 156580
Abstract:
A precision clamping apparatus is described which is suitable for use with a high temperature curing process. A clamp according to the invention includes a base plate with a supporting surface for a component (which consists of two portions to be bonded together), and at least two alignment stops against which the first and second sides of the component can be pressed. A pressure plate is provided to mate with the base plate to exert uniform clamping force on the component to allow a uniform thickness of cured adhesive to form between internal surfaces of the component. The pressure plate is precisely aligned with the supporting surface in the horizontal plane by guides which allow vertical movement. The pressure plate is made self-aligning with the surface of the component by being urged toward the supporting surface by a resilient structure which is in turn held in position by attachment to the base plate. Adjustable lateral fingers are provided to urge the component against the alignment stops.
Magnetic Transducer With Recessed Magnetic Elements
View pageUS Patent:
6580586, Jun 17, 2003
Filed:
Nov 21, 2001
Appl. No.:
09/991601
Inventors:
Robert Glenn Biskeborn - Hollister CA
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
G11B 5187
US Classification:
360319
Abstract:
A magnetic transducer with selected elements recessed from the surface of the transducer is disclosed. The magnetic sensor element is recessed below its surrounding gap material and the second shield (S ) is preferably recessed below the level of the gap material. Recessing the selected elements below the surrounding ceramic material, results in superior resistance to physical distortion resulting from the action of the moving magnetic media. Applicant discloses two methods for producing magnetic transducers with recessed elements according to the invention. One method uses a lapping medium which chemically etches the selected material more aggressively than the surrounding material resulting in the selected material being recessed from the surface of the transducer. For transducers in which the magnetic sensor element and the second (S ) are made from alloys of nickel and iron, an acidic lapping medium is preferred to achieve the desired structure. A second method for fabricating the transducer structure according to the invention uses sputter-etching.
Monolithic Magnetic Read-While-Write Head Apparatus And Method Of Manufacture
View pageUS Patent:
6646830, Nov 11, 2003
Filed:
Jun 7, 2001
Appl. No.:
09/877382
Inventors:
Robert Glenn Biskeborn - Hollister CA
James Howard Eaton - Morgan Hill CA
James Howard Eaton - Morgan Hill CA
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
G11B 5127
US Classification:
360129, 360316
Abstract:
A multi-track magnetoresistive (MR) tape head with precisely-aligned read/write (R/W) track-pairs and a method for fabrication on a monolithic substrate wherein a plurality of tape heads are fabricated from a single substrate wafer by using complete thin-film processing on both sides of the wafer. The recording elements are aligned with readers opposite writers on the other side, providing a method for fabricating a multi-track thin-film magnetoresistive tape head with precisely-aligned R/W track-pairs fabricated on a monolithic substrate. As used herein, the term monolithic denominates an undivided seamless piece. The wafer is built using modified standard thin-film processes for fabricating direct access storage device (DASD) heads and modified substrate lapping procedures. The gap-to-gap separation within each R/W track-pair is reduced to nearly the thickness of the substrate wafer, which is significantly less than conventional separations known in the art. By fabricating on both sides of the wafer, hundreds or thousands of head elements may be aligned in one step while reducing the number of pieces in the completed head assembly.
Tape System With Adjustable Wrap Angles And Method For Adjusting Tape Wrap Angle
View pageUS Patent:
6700733, Mar 2, 2004
Filed:
Jun 9, 2000
Appl. No.:
09/591696
Inventors:
Robert Glenn Biskeborn - Hollister CA
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
G11B 1500
US Classification:
360 90, 36013021
Abstract:
A method for adjusting a tape wrap angle is described comprising the steps of operating the tape system to generate or regenerate an electrical signal in the head from the tape, either increasing or reducing the tape wrap angle as appropriate until a signal from the tape head reappears or goes to zero, then increasing the wrap angle until the desired angle is achieved as measured by the signal from the head or by moving the tape support a fixed amount. A tape recording and/or reading system with adjustable wrap angles is described which can be used with the method of the invention. The system includes one or more rollers mounted on an adjustable shaft with an eccentric or axially offset portion supporting the roller. Preferably for a two or multibump head an adjustable shaft and roller according to the invention are located on the tape-in and tape-out side of the tape head. The angular orientation of the eccentric shaft is adjustable, thereby, allowing precise adjustment of the position of the roller with respect to the tape head.
Method And Apparatus For The Manufacture Of Thin Film Magnetic Transducers Using A Compliant, Soft Lapping Process
View pageUS Patent:
6712985, Mar 30, 2004
Filed:
Jul 3, 2001
Appl. No.:
09/898877
Inventors:
Robert Glenn Biskeborn - Hollister CA
Assignee:
Hitachi Global Storage Technologies
International Classification:
G11B 5127
US Classification:
216 22, 216 52, 216 53, 216 88, 216 89, 216 95, 2960315, 2960316
Abstract:
A method and apparatus for the manufacture of thin film magnetic transducers using a compliant pad or mat or surface in a lapping process is disclosed. The lapping process is applied to heads to eliminate both ductile element connections between the MR and shields and poletip and shield protrusion. A lapping media is dispensed onto an interface surface of a compliant pad. Then, the interface surface is engaged to the surface of a head outside a region comprising transducers defining a head gap. The pad is then moved over the head in a direction parallel to the head gap while using a head rail to guide the pad. The soft, compliant pad conforms to the head rail to ensure parallel movement. The pad is typically not stopped at the elements, but rather moves from one end of the head to the other to prevent bridging and damage that might occur during start/stop on the delicate elements. The lapping media contains a combination of chemical and mechanical agents, wherein the chemical etchants are specifically adjusted to give a desired head profile for the poletips. The chemical etchants are formed by adding dilute acid, for example, to the conventional lapping media used at the interface surface.
Tape Surface Constraint Of Lateral Transients
View pageUS Patent:
6754033, Jun 22, 2004
Filed:
Aug 16, 2000
Appl. No.:
09/641134
Inventors:
Armando Jesus Argumedo - Tucson AZ
Robert Glenn Biskeborn - Hollister CA
Edwin Ralph Childers - Tucson AZ
James Howard Eaton - Morgan Hill CA
Robert Glenn Biskeborn - Hollister CA
Edwin Ralph Childers - Tucson AZ
James Howard Eaton - Morgan Hill CA
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
G11B 5584
US Classification:
360 7712, 360 71, 36013021
Abstract:
A tape movement constraint is provided for a tape drive system which moves a tape longitudinally along a tape path across a tape head, the tape having longitudinal tracks. The tape head has a track following servo system for moving the head laterally for following lateral movement of the tracks, where the tape is subject to lateral transient movement. A tape roller bearing closely adjacent the tape head is rotatable about a central axis parallel to the cylindrical peripheral surface, allowing the tape freedom of movement in the longitudinal direction. The tape roller bearing has a frictional cylindrical peripheral surface for contacting and engaging the surface of the tape and constraining movement of the tape in the lateral direction, thereby reducing the rate of the lateral transient movement of the tape to allow the track following servo system to follow the reduced rate lateral transient movement of the longitudinal tracks. Any potential air bearing that could form between the surface of the tape and the surface of the roller bearing is collapsed to insure that the roller bearing frictionally contacts and engages the surface of the tape.