Inventor
Jurgen Oelsch
Inventor
Hohenroth, DE
Overview
Patents· 27 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Kprimary
H02KDynamo-electric machines26%
H01HElectric switches21%
G11BInformation storage based on relative movement between record carrier and transducer17%
F16CShafts13%
Y10TTechnical subjects covered by former us classification8%
H05KPrinted circuits6%
B23HWorking of metal by the action of a high concentration of electric current on a workpiece using an electrode which takes the place of a tool2%
B29CShaping or joining of plastics2%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts2%
B29LIndexing scheme associated with subclass b29c, relating to particular articles2%
PatentTitleYear
7,416,652'Method for manufacturing an electrode for the electrochemical machining of a workpiece and an electrode manufactured according to this method'20086,998,755'Electronically-commutated electric motor comprising coils with parallel axes'20066,946,765'Rotor unit for an electromotor and an internal rotor electromotor'20056,945,696'Hydrodynamic thrust bearing'20056,800,976'Spindle motor with magnetic seal'20046,628,477'Spindle motor with temperature compensation'20036,586,856'Spindle motor with sleeve for hard disc drives'20036,504,279'Motor mount for small high speed motors'20036,483,214'Spindle motor for driving hard disk drives with sealing contacting system for the stator winding terminal'20026,441,519'Spindle motor for hard disks with cup-shaped sleeve'20026,429,560'Spindle motor with magnetic seal'20026,316,855'Spindle motor with a special contact arrangement'20015,945,751'Disk storage device having a spindle driving motor'19995,796,548'Disk storage device having spindle assembly with ring enclosure'19985,594,606'Disk storage drive for maintaining precision during thermal variations'19975,394,283'Disk storage drive having a rotor mounted with a plurality of bearing'19955,144,567'Programmable plug and cable for computer keyboards'19924,902,862'Keyboard switch device for facilitating removal and replacement of push buttons'19904,743,722'Touch contact switch with arched switching film'19884,720,609'Pushbutton switch device'19884,658,235'Keyboard printed circuit film and method of fabrication'19874,643,497'Device and method for connecting a printed circuit film'19874,580,022'Keyboard key with means for supporting large key surface'19864,527,030'Keyboard'19854,442,055'Process for the manufacture of a contact mat'19844,366,355'Keyboard'19824,032,728'Push button switch'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977Patents assigned to OLYMPIA WERKE AG (1)· patent assignee history
1977Based in Braunschweig, DE· patent location history
1982–1992Patents assigned to PREH ELEKTRO FEINMECHANIK (10)· patent assignee history
1982–1986Based in Salz, DE· patent location history
1987–2008Based in Hohenroth, DE· patent location history
1995–1999Patents assigned to PAPST MOTOREN GMBH & CO KG (4)· patent assignee history
1995–1999Based in St. Georgen, DE· patent location history
2001–2003Patents assigned to PREC MOTORS DEUTSCHE MINEBEA G (7)· patent assignee history
2005–2008Patents assigned to MINEBEA CO LTD (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PREH ELEKTRO FEINMECHANIK | 10 | 1982–1992 |
| PREC MOTORS DEUTSCHE MINEBEA G | 7 | 2001–2003 |
| MINEBEA CO LTD | 4 | 2005–2008 |
| PAPST MOTOREN GMBH & CO KG | 4 | 1995–1999 |
| OLYMPIA WERKE AG | 1 | 1977 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hohenroth, DE | 18 | 1987–2008 |
| St. Georgen, DE | 4 | 1995–1999 |
| Salz, DE | 4 | 1982–1986 |
| Braunschweig, DE | 1 | 1977 |