Inventor
Tohru Kawakami
Inventor
Sendai, JP
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus37%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein30%
F21KNon-electric light sources using luminescence7%
F21VFunctional features or details of lighting devices or systems thereof7%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted7%
F01CRotary-piston or oscillating-piston machines or engines4%
F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids4%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them4%
PatentTitleYear
10,180,575Image display apparatus20199,939,127Illumination device20189,507,197'Lighting device and display device'20169,310,619'Optical film'20169,217,552'Illumination device'20159,122,097'Backlight system and LCD device using the same'20158,922,735'Backlight system and liquid crystal display device using the same'20148,810,752'Thin backlight system and liquid crystal display device using the same'20148,493,526'Lighting device and display device'20138,330,709'Illuminating device and display unit'20128,259,384'Illumination device and display device'20128,199,278'Surface light source device'20128,054,404'Surface light source device'20117,351,047'Swash-plate variable volume chamber-type fluid machine'2008Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2008Based in Tokyo, JP· patent location history
2011–2019Patents assigned to UNIV TOHOKU (13)· patent assignee history
2011–2018Patents assigned to SHARP KK (8)· patent assignee history
2011–2019Based in Sendai, JP· patent location history
2012–2016Patents assigned to ISHINABE TAKAHIRO (8)· patent assignee history
2012–2016Patents assigned to KAWAKAMI TOHRU (8)· patent assignee history
2012–2016Patents assigned to UCHIDA TATSUO (8)· patent assignee history
2012–2016Based in Miyagi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNIV TOHOKU | 13 | 2011–2019 |
| ISHINABE TAKAHIRO | 8 | 2012–2016 |
| KAWAKAMI TOHRUself | 8 | 2012–2016 |
| SHARP KK | 8 | 2011–2018 |
| UCHIDA TATSUO | 8 | 2012–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Sendai, JP | 9 | 2011–2019 |
| Miyagi, JP | 4 | 2012–2016 |
| Tokyo, JP | 1 | 2008 |