Patrick J. Ryan
53Patents
16h-index
80Co-inventors
83Inventor score
Filing activity: Jan 31, 1994 → Apr 26, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5456259A | Ultrasonic transducer arrangement and catheter | Human Necessities | 121 | Expired |
| US7724469B2 | High frequency field assisted write device | Physics | 99 | Active |
| US7397633B2 | Writer structure with assisted bias | Physics | 65 | Expired |
| US5993393A | Methods and apparatus for the examination and treatment of internal organs | Physics | 61 | Expired |
| US5896246A | Suspension fabricated from silicon | Emerging Cross-Sectional Technologies | 57 | Expired |
| US7436632B2 | Differential/dual CPP recording head | Physics | 54 | Expired |
| US5514953A | Wafer level test structure for detecting multiple domains and magnetic instability in a permanent magnet stabilized MR head | Emerging Cross-Sectional Technologies | 40 | Expired |
| US5590659A | Ultrasonic visualization method and apparatus | Physics | 39 | Expired |
| US5711063A | Method of forming a suspension fabricated from silicon | Emerging Cross-Sectional Technologies | 35 | Expired |
| US6122149A | Magnetic microactuator and inductive sensor having shaped pole configuration | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5776537A | Method of characterizing exchange coupling for magnetoresistive sensor | Physics | 22 | Expired |
| US6621667B1 | Giant magnetoresistive sensor with a multilayer cap layer | Physics | 19 | Expired |
| US6449135B1 | Overlaid MR structure with magnetostatic stabilized soft adjacent layer | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6144534A | Laminated hard magnet in MR sensor | Physics | 18 | Expired |
| US6441994B1 | High frequency response writer with recessed shared pole and vertical coils | Physics | 17 | Expired |
| US7509748B2 | Magnetic MEMS sensors | Physics | 17 | Active |
| US6771472B1 | Structure to achieve thermally stable high sensitivity and linear range in bridge GMR sensor using SAF magnetic alignments | Physics | 15 | Expired |
| US7969771B2 | Semiconductor device with thermally coupled phase change layers | Physics | 14 | Active |
| US6254542A | Ultrasonic visualization method and apparatus | Physics | 12 | Expired |
| US6351357B1 | Laminated hard magnet in MR sensor | Physics | 12 | Expired |
| US6710982B2 | Domain control in shields of a magnetic transducer | Physics | 11 | Expired |
| US6914758B2 | Method and apparatus for preventing ESD and EOS damage in manufacturing magnetoresistive effect read heads | Physics | 10 | Expired |
| US8456903B2 | Magnetic memory with porous non-conductive current confinement layer | Electricity | 9 | Active |
| US6507457B2 | Magnetic head | Physics | 8 | Expired |
| US6278595A | Magnetoresistive sensor having a hard-biasing material and a cubic-titanium-tungsten underlayer | Physics | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.