John Bortins — 9 Patents at Seagate Technology

John Bortins has been granted 9 US patents while listed as an inventor at Seagate Technology. The first was granted in 1992 and the most recent in December 1997. John Bortins ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list John Bortins in Bloomington, MN, US.

Patents per Year

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Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5699605	Method for forming a magnetic thin film head with recessed basecoat	Nurul Amin, Ying D. Yan	1997-12-23	$19,747,000
5471354	Servo head with close servo transducer placement for improved passive noise cancellation	Frank S. Stageberg, Lance E. Stover, Gerald L. Weispfenning	1995-11-28	$36,484,000
5406434	Thin film head with contoured pole face edges for undershoot reduction	Nurul Amin, Ying D. Yan, Beat G. Keel, Nathan Curland, Tim Madsen	1995-04-11	$20,474,000
5373624	Leading edge undershoot elimination in thin film heads	Ying D. Yan, Beat G. Keel, Nurul Amin	1994-12-20	$17,112,000
5210669	Methods of improved servo head passive noise cancellation by placement and orientation of multiple servo transducers	Gerald L. Weispfenning	1993-05-11	$6,524,000
5198948	Shielded servo heads with improved passive noise cancellation	Lance E. Stover, Beat G. Keel, Gerald L. Weispfenning	1993-03-30	$12,008,000
5181152	Leading edge undershoot elimination in thin film heads	Ying D. Yan, Beat G. Keel, Nurul Amin	1993-01-19	$15,213,000
5137750	Method of making a thin film head with contoured pole face edges for undershoot reduction	Nurul Amin, Ying D. Yan, Beat G. Keel, Nathan Curland, Tim Madsen	1992-08-11	$12,859,000
5084957	Method for aligning thin film head pole tips	Nurul Amin, Beat G. Keel, Ying D. Yan	1992-02-04	$13,263,000

John Bortins — 9 Patents

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