EY

Edward J. Yarmchuk

IBM: 57 patents #1,416 of 70,183Top 3%
HG HGST: 8 patents #217 of 1,677Top 15%
HB Hitachi Global Technologies Netherlands B.V.: 1 patents #2 of 42Top 5%
📍 Armonk, NY: #5 of 167 inventorsTop 3%
🗺 New York: #1,187 of 115,490 inventorsTop 2%
Overall (All Time): #32,851 of 4,157,543Top 1%
66
Patents All Time

Issued Patents All Time

Showing 51–66 of 66 patents

Patent #TitleCo-InventorsDate
5659436 Radial self propagation pattern generation for disk file servowriting Mark D. Schultz, Bucknell C. Webb, Timothy J. Chainer 1997-08-19
5648720 Apparatus and method for producing a magnetic image of a conductive pattern using eddy currents 1997-07-15
5615058 Method and system for writing a servo-pattern on a storage medium Timothy J. Chainer, Wayne J. Sohn 1997-03-25
5612833 Radial self-propagation pattern generation for disk file servowriting Mark D. Schultz, Bucknell C. Webb, Timothy J. Chainer 1997-03-18
5581420 Method and system for determining a radial positioning valve used for writing tracks at a desired track pitch Timothy J. Chainer, Wayne J. Sohn 1996-12-03
5485322 Method and system for writing a clock track on a storage medium Timothy J. Chainer, Wayne J. Sohn 1996-01-16
5469051 Electrical defect detector for circuit lines 1995-11-21
5434504 Position sensors for linear motors including plural symmetrical fluxes generated by a planar drive coil and received by planar sense coils being colinear along an axis of motion Ralph L. Hollis, Jr., Jehuda Ish-Shalom 1995-07-18
5130660 Miniature electronic device aligner using capacitance techniques Ephraim B. Flint 1992-07-14
4939599 Method and apparatus for measuring dynamic track misregistration Timothy J. Chainer 1990-07-03
4931887 Capacitive measurement and control of the fly height of a recording slider Suryanarayan G. Hegde, Robert A. Scranton 1990-06-05
4739342 Crossed-element magnetographic print head Derek B. Dove, George E. Keefe 1988-04-19
4725850 Electromagnetic head with separate addressability resolution and imaging resolution functions Derek B. Dove, Kurt R. Grebe, George E. Keefe 1988-02-16
4623554 Method for controlling plating rate in an electroless plating system Ronald A. Kaschak, Roy H. Magnuson 1986-11-18
4525724 Magnetic recording head array for longitudinal magnetic printing with staggered head arrangement and clustered wiring Peter A. Franaszek 1985-06-25
4479980 Plating rate monitor Raul E. Acosta 1984-10-30