Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
SO

Shingo Ohkawa

ENEnplas: 47 patents #2 of 255Top 1%
Sony: 24 patents #1,623 of 25,231Top 7%
SLSaturn Licensing: 11 patents #18 of 329Top 6%
YKYasuhiro Koike: 6 patents #1 of 25Top 4%
UNUnknown: 3 patents #7,366 of 83,584Top 9%
OCOptex Co.: 2 patents #42 of 111Top 40%
Overall (All Time): #20,263 of 4,157,543Top 1%
84 Patents All Time

Issued Patents All Time

Showing 51–75 of 84 patents

Patent #TitleCo-InventorsDate
6992335 Guide plate, surface light source device and liquid crystal display 2006-01-31
6930735 Surface light source device of side light type and liquid crystal display Kazumasa Ohsumi 2005-08-16
6921178 Surface light device, image display device and light guide plate 2005-07-26
6894740 Surface light source device and liquid crystal display 2005-05-17
6877871 Light guide plate, surface light source device and display 2005-04-12
6834973 Light guide plate, surface light source device and liquid crystal display 2004-12-28
6791635 Surface light source device of side light type and liquid crystal display Kazumasa Ohsumi 2004-09-14
6755546 Light guide plate, surface light source device and display 2004-06-29
6746130 Light control sheet, surface light source device and liquid crystal display 2004-06-08
6746129 Light guide plate, surface light source device and display 2004-06-08
6676268 Light guide plate, surface light source device and display 2004-01-13
6678021 Light guide plate, surface light source device and liquid crystal display 2004-01-13
6671013 Optical waveguide sheet having projections with two reflection faces and a ridge, surface illuminant device and liquid crystal display 2003-12-30
6616290 Light guide plate, surface light source device and liquid crystal display 2003-09-09
6609809 Guide plate, surface light source device and liquid crystal display 2003-08-26
6585356 Light guide plate, surface light source device of side light type and liquid crystal display 2003-07-01
6568820 Guide plate, surface light source device of side light type and liquid crystal display Hiroshi Yamazaki, Junichi Ohkuma 2003-05-27
6568819 Guide plate, surface light source device of side light type and liquid crystal display Hiroshi Yamazaki 2003-05-27
6485157 Light guide plate, surface light source device and liquid crystal display 2002-11-26
6412968 Surface light source device of side light type, liquid crystal display and light guide plate 2002-07-02
6406158 Surface light source device of side light type 2002-06-18
6384881 Surface light source device of side light type and liquid crystal display Takayuki Arai 2002-05-07
6345899 Surface light source device of side light type Takayuki Arai 2002-02-12
6339458 Light guide plate, surface light source device of side light type and liquid crystal display 2002-01-15
6334690 Surface light source device of side light type and liquid crystal display 2002-01-01