Inventor
Hideaki Nagakubo
Inventor
Fukushima, JP
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus50%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein30%
G06FElectric digital data processing5%
G09GArrangements or circuits for control of indicating devices using static means to present variable information5%
H01HElectric switches5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
PatentTitleYear
8,334,794'Input device and keyboard device having illumination function'20127,497,610'Light guiding plate including a plurality of prisms, surface emitting device using light guiding plate, and liquid crystal display device using light guiding plate'20097,356,211'Lighting system'20087,165,874'Backlight unit and liquid crystal display device'20077,123,318'Double-sided emissive liquid crystal display module containing double-sided illumination plate and multiple display panels'20067,121,711'Surface emitting device and liquid crystal display apparatus'20066,981,792'Backlight device and liquid crystal display device'20066,971,782'Illumination device and liquid crystal display device'20056,692,134'Surface-emitting device precisely positioned in the front of liquid crystal display unit, and liquid crystal display device having the surface-emitting device'20046,313,891'Liquid crystal display device with light quantity control portion'20016,297,786'Liquid crystal display apparatus'20016,219,117'Liquid crystal display device'2001Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2001–2012Patents assigned to ALPS ELECTRIC CO LTD (12)· patent assignee history
2001–2012Based in Fukushima, JP· patent location history
2012Patents assigned to AKIYAMA NAOYA (1)· patent assignee history
2012Patents assigned to HOSAKA TOSHINOBU (1)· patent assignee history
2012Patents assigned to ISHIDA MASAHIRO (1)· patent assignee history
2012Patents assigned to KATAYAMA KATSUYUKI (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ALPS ELECTRIC CO LTD | 12 | 2001–2012 |
| AKIYAMA NAOYA | 1 | 2012 |
| HOSAKA TOSHINOBU | 1 | 2012 |
| ISHIDA MASAHIRO | 1 | 2012 |
| KATAYAMA KATSUYUKI | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Fukushima, JP | 12 | 2001–2012 |