Inventor

Jacobus P. J. Heemskerk

Inventor

Eindhoven, NL

Overview

15→

Patents

1982–2006

Patent span

Physics

Primary field (CPC G)

Patents· 15 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 transducer71%

G06FElectric digital data processing14%

G02BOptical elements, systems or apparatus5%

H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light5%

H04NPictorial communication, e.g. television5%

PatentTitleYear

7,075,876'Method of registering a running time on an information carrier, information carrier and apparatus'2006 6,778,484'Method of registering a running time on an information carrier, information carrier and apparatus'2004 6,628,584'Apparatus and associated method for linking information on a read only record carrier'2003 6,577,574'Method of registering a running time on an information carrier, information carrier and apparatus'2003 6,310,838'Record carrier and apparatus for scanning the record carrier'2001 6,031,815'Information carrier containing auxiliary information, reading device and method of manufacturing such an information carrier'2000 5,841,753'Multi-layer information storage system with improved aberration correction'1998 5,677,903'Multi-layer information storage system with improved aberration correction'1997 5,453,968'Methods of and information recording devices for recording and/or inhibiting recording of an information signal having copy bits with logic values which alternate in accordance with a pattern'1995 5,428,598'Record carrier with copy bits'1995 4,665,310'Apparatus for optically scanning an information plane wherein a diffraction grating splits the beam into two sub-beams'1987 4,365,323'Optic read unit for scanning a record carrier having a radiation-reflecting information structure'1982 4,358,200'Optical focussing-error detection system'1982 4,354,103'Optical focusing device with two controls'1982 4,325,135'Optical record carrier and apparatus for reading it'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–2001Patents assigned to PHILIPS CORP (11)· patent assignee history

1982–2006Based in Eindhoven, NL· patent location history

2003–2006Patents assigned to KONINKL PHILIPS ELECTRONICS NV (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
PHILIPS CORP	11	1982–2001
KONINKL PHILIPS ELECTRONICS NV	4	2003–2006

Locations

Location	Patents	Span
Eindhoven, NL	15	1982–2006