AS

Aalbert Stek

Philips: 44 patents #10 of 7,731Top 1%
SO Sony: 13 patents #3,381 of 25,231Top 15%
Koniniklijke Philips N.V.: 8 patents #941 of 7,486Top 15%
Sumitomo Electric Industries: 7 patents #3,987 of 21,551Top 20%
DB Dopple Ip B.V.: 4 patents #1 of 4Top 25%
PA Panasonic: 4 patents #6,180 of 21,108Top 30%
📍 Emmen, NL: #1 of 79 inventorsTop 2%
Overall (All Time): #41,357 of 4,157,543Top 1%
58
Patents All Time

Issued Patents All Time

Showing 26–50 of 58 patents

Patent #TitleCo-InventorsDate
7698622 Information recording device and method, information reproducing device and method, recording medium, program, and disc recording medium Shoei Kobayashi, Susumu Senshu, Tamotsu Yamagami, Makoto Usui, Hideshi Ishihara +3 more 2010-04-13
7656780 Optical recording medium having first and second wobble patterns Jacobus Petrus Josephus Heemskerk, Cornelis Marinus Schep, Hiromichi Ishibashi, Shigeru Furumiya, Shoei Kobayashi +1 more 2010-02-02
7624331 Information recording disc, recording and/or reproducing device and method Shoei Kobayashi, Susumu Senshu, Tamotsu Yamagami, Makoto Usui, Hideshi Ishihara +3 more 2009-11-24
7613986 Information recording device and method, information reproducing device and method, recording medium, program, and disc recording medium Shoei Kobayashi, Susumu Senshu, Tamotsu Yamagami, Makoto Usui, Hideshi Ishihara +3 more 2009-11-03
7549110 Device for encoding and decoding using smaller block of symbols Corneli Marinus Schep, Martinus Wilhelmus Blum 2009-06-16
7454688 Information recording disc, recording and/or reproducing device and method Shoei Kobayashi, Susumu Senshu, Tamotsu Yamagami, Makoto Usui, Hideshi Ishihara +3 more 2008-11-18
7428196 Writing data to an optical disc Johannis Blacquiere, Cornelis Marinus Schep, Theodorus Petrus Henricus Gerardus Jansen 2008-09-23
7401001 Position determining Anthonius Petrus Gerardus Emanuel Janssen 2008-07-15
7388826 Optical recording medium capable of recording three data values Jacobus Petrus Josephus Heemskerk, Cornelis Marinus Schep, Hiromichi Ishibashi, Shigeru Furumiya, Shoei Kobayashi +1 more 2008-06-17
7385908 Record carrier including a servo track having first and second modulated parts representing a data type and a word sync type, respectively, and an apparatus for scanning the record carrier Cornelis Marinus Schep 2008-06-10
7385888 Tracking system with dual differential signals with fraction of A/C signal added back to D/C signal Sjoerd Stallinga, Maarten Kuijper 2008-06-10
7289409 Method for processing a wobble signal Bin Yin, Cornelis Marinus Schep, Alexander Padiy, Theodorus Petrus Henricus Gerardus Jansen, Mohammed Meftah 2007-10-30
7274627 Record carrier and apparatus for scanning the record carrier Cornelis Marinus Schep, Sebastian Egner, Constant Paul Marie Jozef Baggen 2007-09-25
7263049 Semi-synchronous receiver and apparatus for reading information David Modrie, Koen Vanhoof 2007-08-28
7200795 Method of encoding and decoding Cornelis Marinus Schep, Martinus Wilhelmus Blum 2007-04-03
7196997 Waveform equalizer for obtaining a corrected signal and apparatus for reproducing information Peter Marchel Linotte, Theodorus Petrus Henricus Gerardus Jansen 2007-03-27
7178083 Device for scanning an information carrier, method of manufacturing, and information carrier Roel Van Woudenberg 2007-02-13
7177257 Information carrier and devices for scanning the information carrier Roel Van Woudenberg 2007-02-13
7167438 Optical disc with different wobble patterns in different grooves Jacobus Petrus Josephus Heemskerk, Cornelis Marinus Schep, Shigeru Furumiya, Hiromichi Ishibashi, Junichi Minamino +3 more 2007-01-23
7158472 Record carrier and apparatus for scanning the record carrier Cornelis Marinus Schep, Constant Paul Marie Jozef Baggen, Koen Vanhoof, Tamotsu Yamagami, Shoei Kobayashi +2 more 2007-01-02
7123557 Disc-shaped recording medium disc driving device and method and apparatus for producing disc Jacobus Petrus Josephus Heemskerk, Cornelis Marinus Schep, Shinichi Tanaka, Hiromichi Ishibashi, Shigeru Furumiya +3 more 2006-10-17
7110336 Methods, optical recording apparatus using such methods and optical recording medium for use by the methods and the apparatus Johannes Hendrikus Maria Spruit, Cai-Gang Xu, Joris Van De Pas 2006-09-19
7110332 Record carrier having a servo track with position information in accordance with a modulation type and permanent information in accordance with a different modulation type, and apparatus for scanning the record carrier Cornelis Marinus Schep, Jacobus Petrus Josephus Heemskerk 2006-09-19
7085209 Record carrier having a servo track with non-modulated parts at a first frequency and modulated parts at a second frequency, and apparatus for scanning the record carrier Cornelis Marinus Schep, Hendrik Van Houten 2006-08-01
7046596 Record carrier having an improved modulated servo track for more reliable synchronization and an apparatus for scanning the record carrier Cornelis Marinus Schep, Hendrik Van Houten 2006-05-16