Inventor

Norbert C. Vollmann

Inventor

Eindhoven, NL

Overview

26→

Patents

1987–2001

Patent span

Physics

Primary field (CPC G)

Patents· 26 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer88%

F16HGearing4%

LOC144%

Y10TTechnical subjects covered by former us classification4%

PatentTitleYear

D0442605'Extended tape cartridge'2001 6,122,137'Loading mechanism for a recording and reproducing apparatus wherein a switch mechanism and the loading mechanism are a single unit'2000 6,016,236'Apparatus for the storage and/or reproduction of information on/from an information carrier'2000 5,986,854'Magnetic cassette recorder with reversing and translating magnetic head'1999 5,883,755'Apparatus for storage and/or reproduction of information on/from an information carrier'1999 5,779,173'Apparatus for operating the shutter of a cassette'1998 5,760,996'System for recording/reproducing signals on/ from a magnetic tape in a cassette'1998 5,734,539'System for recording and/or reproducing information, including a cassette with a record carrier in tape form and an apparatus'1998 5,610,778'Magnetic tape apparatus which senses and plays different types of cassette'1997 5,592,352'System for recording/reproducing signals on/from a magnetic tape in a cassette'1997 5,454,529'Cassette provided with magnetic tape'1995 5,404,251'Auto reverse cassette deck capable of recording/reproducing with two different cassette types and formats'1995 5,365,393'Magnetic tape cassette having a groove extending perpendicular to a front wall thereof for engagement by a loading mechanism of a tape cassette apparatus'1994 5,357,390'Magnetic tape with a cylindrical magnetic head housing'1994 5,309,302'System comprising a player and/or recorder apparatus and a tape cassette, and the apparatus and a cassette suitable for use in such a system'1994 5,264,987'Cassette for magnetic tape provided with window'1993 5,237,479'Tape cassette with slidable cover'1993 5,231,553'System comprising magnetic tape cassette apparatus and two different types of magnetic tape cassettes playable in such apparatus'1993 5,219,090'Holder provided with two compartments and a cover arrangement'1993 5,214,554'Cassette for a record carrier'1993 5,187,629'Cassette with magnetic tape on two coplanar reels'1993 5,184,259'Helical-scan magnetic tape apparatus having a tape-transport path with twisting path-sections for tape-path correction'1993 D0331235'Digital compact cassette'1992 5,074,486'Magnetic-tape cassette'1991 4,722,239'Gear mechanism'1988 4,642,706'Video cassette recorder with improved tape guiding and tensioning'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1999Patents assigned to PHILIPS CORP (23)· patent assignee history

1987Based in Wiener Neudorf, AT· patent location history

1988Based in Wr. Neudorf, AT· patent location history

1991–2000Based in Eindhoven, NL· patent location history

1992–2001Based in Veldhoven, NL· patent location history

1995Patents assigned to POLYGRAM INT HOLDING (1)· patent assignee history

2000Patents assigned to ONSTREAM INC (2)· patent assignee history

2001Patents assigned to VERBATIM CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
PHILIPS CORP	23	1987–1999
ONSTREAM INC	2	2000
POLYGRAM INT HOLDING	1	1995
VERBATIM CORP	1	2001

Locations

Location	Patents	Span
Eindhoven, NL	20	1991–2000
Veldhoven, NL	4	1992–2001
Wr. Neudorf, AT	1	1988
Wiener Neudorf, AT	1	1987