Inventor · disambiguated record
Martin Hafen
Also filed as: HAFEN MARTIN
13 granted patents·1 pending application·211 citations·filing 1988–2007
92Inventor score
Top patents by PatentIndex Score
14 records- 0190US7345392B2Spindle motor having a hydrodynamic bearing systemMINEBEA CO LTD·Filed 2005·Granted Mar 18, 2008·22 cites·17 claims
- 0280US5614742AMicromechanical accelerometer with plate-like semiconductor wafersLITEF GMBH·Filed 1996·Granted Mar 25, 1997·47 cites·9 claims
- 0378US4953834APendulum with bending spring jointLITEF GMBH·Filed 1988·Granted Sep 4, 1990·36 cites·4 claims
- 0469US7059773B2Hydrodynamic bearing, spindle motor and hard disk driveMINEBEA CO LTD·Filed 2004·Granted Jun 13, 2006·10 cites·13 claims
- 0566US5959206AMicromechanical rotation speed sensorLITEF GMBH·Filed 1996·Granted Sep 28, 1999·41 cites·20 claims
- 0666US5504032AMicromechanical accelerometer and method of manufacture thereofLITEF GMBH·Filed 1994·Granted Apr 2, 1996·26 cites·13 claims
- 0759US7001073B2Hydrodynamic bearing for a spindle motorMINEBEA CO LTD·Filed 2003·Granted Feb 21, 2006·7 cites·9 claims
- 0850US7125169B2Hydrodynamic pivot bearingMINEBEA CO LTD·Filed 2005·Granted Oct 24, 2006·0 cites·7 claims
- 0949US7008110B2Hydrodynamic pivot bearingMINEBEA CO LTD·Filed 2003·Granted Mar 7, 2006·2 cites·5 claims
- 1048US6490923B1Micromechanical rpm sensorLITEF GMBH·Filed 1999·Granted Dec 10, 2002·18 cites·10 claims
- 1145US6921209B2Conical hydrodynamic pivot bearingMINEBEA CO LTD·Filed 2003·Granted Jul 26, 2005·2 cites·13 claims
- 1244US2008101739A1Fluid dynamic bearing system and a spindle motor having a bearing system of this kindWILDPRETH MATTHIAS·Filed 2007·Application pending·0 cites
- 1336US6906439B2Spindle motor with casing part in hard disk drivesMINEBEA CO LTD·Filed 2002·Granted Jun 14, 2005·0 cites·6 claims
- 1436US6848829B2Hydrodynamic bearing arrangement for a spindle motorMINEBEA CO LTD·Filed 2002·Granted Feb 1, 2005·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →