Inventor
Mari Sugawara
Inventor
Kawasaki, JP
Overview
Patents· 28 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Fprimary
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein32%
G02BOptical elements, systems or apparatus26%
H04NPictorial communication, e.g. television12%
H01JElectric discharge tubes or discharge lamps9%
B82YSpecific uses or applications of nanostructures6%
F21VFunctional features or details of lighting devices or systems thereof6%
G01DMeasuring not specially adapted for a specific variable3%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them3%
G09GArrangements or circuits for control of indicating devices using static means to present variable information3%
PatentTitleYear
8,134,661'Reflection-type liquid crystal display device'20128,049,711'Illumination device and liquid crystal display device using the same'20117,541,723'Backlight having a polarization separating element'20097,494,259'Lighting unit'20097,359,011'Reflection-type liquid crystal display device'20087,309,146'Backlight having discharge tube, reflector and heat conduction member contacting discharge tube'20077,277,079'Illumination device and liquid crystal display device using the same'20077,169,005'Method of producing a backlight having a discharge tube containing mercury'20077,164,224'Backlight having discharge tube, reflector and heat conduction member contacting discharge tube'20077,163,331'Lighting unit and display device'20077,122,946'Light source device having high limit-emitting efficiency'20067,073,933'Light guide plate, light source device equipped therewith and display device'20067,015,632'Light source device, method of producing the same, and display apparatus'20066,882,388'Reflection type liquid crystal display device and manufacturing method thereof'20056,819,366'Display device with condenser elements'20046,655,810'Lighting unit'20036,639,642'Display device having diffraction grating'20036,559,910'Display device with condenser elements'20036,552,760'Luminaire with improved light utilization efficiency'20036,513,936'Projector'20036,481,854'Projection type display apparatus having air cooling arrangement'20026,379,010'Projection type display'20026,322,218'Projection type display'20016,246,506'Optical display device having a reflection-type polarizer'20016,111,700'Optical display device having a reflection-type polarizer'20005,959,704'Display device having diffraction grating'19995,826,960'Protection type display device with polarized light reflecting mirror and polarized light source'19985,764,412'Polarization separation/conversion device for polarized lighting apparatus and projection display unit'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2004Patents assigned to FUJITSU LTD (13)· patent assignee history
1998–2012Based in Kawasaki, JP· patent location history
2002Based in Tachikawa, JP· patent location history
2003–2005Patents assigned to FUJITSU DISPLAY TECH (2)· patent assignee history
2006–2012Patents assigned to SHARP KK (12)· patent assignee history
2006Patents assigned to FUJITSU KASEI KK (1)· patent assignee history
2012Patents assigned to HAMADA TETSUYA (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FUJITSU LTD | 13 | 1998–2004 |
| SHARP KK | 12 | 2006–2012 |
| FUJITSU DISPLAY TECH | 2 | 2003–2005 |
| FUJITSU KASEI KK | 1 | 2006 |
| HAMADA TETSUYA | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kawasaki, JP | 27 | 1998–2012 |
| Tachikawa, JP | 1 | 2002 |