RA

Richard H. Ahlert

IBM: 12 patents #9,222 of 70,183Top 15%
📍 San Jose, CA: #5,375 of 32,062 inventorsTop 20%
🗺 California: #50,852 of 386,348 inventorsTop 15%
Overall (All Time): #428,117 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
6010601 Method of making magnetic disk with boron carbide overcoat layer and adhesion layer James K. Howard, Muhammad Inayet Ullah, Richard Donald Umphress 2000-01-04
5897931 Magnetic disk with boron carbide overcoat layer James K. Howard, Muhammad Inayet Ullah, Richard Donald Umphress 1999-04-27
5828532 Getter layer lead structure for eliminating resistance increase phenomena and embrittlement and method for making the same James K. Howard, Michael Andrew Parker 1998-10-27
5750231 Magnetic disk with boron carbide overcoat layer James K. Howard, Muhammad Inayet Ullah, Richard Donald Umphress 1998-05-12
5552204 Magnetic disk with boron carbide overcoat layer James K. Howard, Muhammad Inayet Ullah, Richard Donald Umphress 1996-09-03
5492775 Barium ferrite thin film for longitudinal recording James K. Howard, Todd Hylton, Michael Andrew Parker, Muhammad Inayet Ullah 1996-02-20
5227212 Magnetic recording disk, magnetoresistive read head, inductive write head combination James K. Howard, Steven E. Lambert, Ian L. Sanders 1993-07-13
5149409 Process for fabricating thin film metal alloy magnetic recording disks to selectively variable coercivities James K. Howard, Steven E. Lambert 1992-09-22
5051288 Thin film magnetic recording disk comprising alternating layers of a CoNi or CoPt alloy and a non-magnetic spacer layer James K. Howard, Steven E. Lambert, Ian L. Sanders 1991-09-24
5030494 Carbon overcoat for a thin film magnetic recording disk containing discrete clusters of tungsten (W) or tungsten carbide (WC) which project from the surface of the overcoat James K. Howard, Kwang Ki Kim, Ian L. Sanders, Anthony W. Wu 1991-07-09
4749628 Multilayered vertical magnetic recording medium James K. Howard, Grace S. Lim 1988-06-07
4654276 Magnetic recording medium with an underlayer and a cobalt-based magnetic layer James K. Howard, Grace S. Lim 1987-03-31