Mark J. Schaenzer
41Patents
18h-index
36Co-inventors
81Inventor score
Filing activity: Jul 14, 1980 → Dec 21, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6577466B2 | Head with active fly height control | Physics | 56 | Expired |
| US6071007A | Thermal asperity detection head | Physics | 46 | Expired |
| US6296552A | Burnishing head with fly height control spacer | Emerging Cross-Sectional Technologies | 42 | Expired |
| US6366416B1 | Glide test head with active fly height control | Physics | 41 | Expired |
| US6196062A | Trailing edge acoustic emission sensor and pyroelectric sensor for asperity detection | Physics | 36 | Expired |
| US6016692A | Glide test slider having electrically isolated piezoelectric crystal for improved noise suppression | Physics | 36 | Expired |
| US6700727B1 | Slider and method for actively controlling crown curvature | Physics | 35 | Expired |
| US6273793A | Apparatus and method for reducing disc surface asperities to sub-microinch height | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5808184A | Thermal asperity sensor head with multiple spaced asperity sensors | Physics | 30 | Expired |
| US6358123B1 | Apparatus and method for reducing disc surface asperities to sub-microinch height | Emerging Cross-Sectional Technologies | 30 | Expired |
| US6322431A | Burnish head with ion milled aerodynamic pads configured in an elliptical pattern | Physics | 29 | Expired |
| US5825181A | Multi-impact thermal asperity sensor head | Physics | 28 | Expired |
| US6216242A | Multiple-track magneto-resistive certification and thermal asperity test head | Physics | 27 | Expired |
| US5831797A | Slider with mesa for optical disc data storage system | Physics | 25 | Expired |
| US5856895A | Internal accelerometer for improved servo performance and shock sensing on high performance disc drive heads | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5755612A | Small foot machining guide for recording heads | Emerging Cross-Sectional Technologies | 24 | Expired |
| US6309283A | Apparatus and method for reducing disc surface asperities to sub-microinch height | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4325282A | Unitized case resizer and trimmer | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US6046596A | Capacitance probe for magnetic recording head transducer to disc surface spacing measurement | Physics | 18 | Expired |
| US6940669B2 | Wide write head with thermal asperity detector and method of using the same | Physics | 17 | Expired |
| US6104556A | Wide write disc certification process, apparatus and article of manufacture | Physics | 17 | Expired |
| US5872311A | Integrated piezoelectric and thermal asperity transducers for testing disc media in high performance disc drives | Physics | 17 | Expired |
| US6503132B2 | Hybrid burnish/glide head with advanced air bearing fly height control rails | Physics | 17 | Expired |
| US6046871A | Magnetic recording head slider with piezoelectric sensor for measuring slider to disc interference levels | Physics | 15 | Expired |
| US6150813A | Method of connecting heads of a data storage system to a testing apparatus | Electricity | 14 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.