Inventor
Takashi Oku
Inventor
Saitama, JP
Overview
Patents· 20 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 apparatus22%
C03CChemical composition of glasses, glazes or vitreous enamels5%
F21VFunctional features or details of lighting devices or systems thereof5%
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 emitted5%
A01NPreservation of bodies of humans or animals or plants or parts thereof2%
C04BLime, magnesia2%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds2%
C08LCompositions of macromolecular compounds2%
F21KNon-electric light sources using luminescence2%
PatentTitleYear
11,061,231Optical device and display device20218,833,965'Light-emitting circuit, luminaire, and manufacturing method for the light-emitting circuit'20148,350,899'Stereoscopic display device'20138,106,859'Light emitting device, area light source apparatus and image display apparatus'20128,104,910'Light emitting device, surface light source device, and image display device'20128,009,247'Light source apparatus, backlight apparatus, liquid crystal display apparatus, and manufacturing method of backlight apparatus'20117,946,723'Backlight device'20117,810,979'Illuminating device with primary color LED and fluorescent light sources, and liquid crystal display device'20107,808,585'Color filter and color LCD apparatus having red filter with a peak wavelength between 685 nm and 690 nm and a red light source having a peak wavelength of between 640 nm and 645 nm'20107,663,714'Backlight device and color liquid crystal display apparatus'20107,604,362'Backlight apparatus, liquid crystal display'20097,510,314'Backlight device'20097,413,331'LCD with multi-color optical unit and cross dichroic device'20087,318,664'Backlight device and liquid crystal display apparatus'20087,185,995'Backlight device and liquid crystal display'20076,822,705'Reflective display, light guide plate and method of manufacturing light guide plate'20045,882,808'Anti-bacterial and anti-fungal ceramic product'19995,807,641'Anti-bacterial and anti-fungal glaze composition for ceramic products'19985,773,517'Process for the production of thermoplastic resin composition'19984,996,177'Sintered alumina article with high flexural strength and process for producing same'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–1999Based in Funabashi, JP· patent location history
1998Based in Kurashiki, JP· patent location history
2004–2021Patents assigned to SONY CORP (15)· patent assignee history
2004Based in Tokyo, JP· patent location history
2007–2011Based in Saitama, JP· patent location history
2011–2021Based in Kanagawa, JP· patent location history
2012–2014Patents assigned to OKU TAKASHI (4)· patent assignee history
2012Patents assigned to NAKAKI KENICHI (2)· patent assignee history
2012Patents assigned to OHKAWA SHINGO (2)· patent assignee history
2012Patents assigned to SHIBANUMA TETSUO (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SONY CORP | 15 | 2004–2021 |
| OKU TAKASHIself | 4 | 2012–2014 |
| NAKAKI KENICHI | 2 | 2012 |
| OHKAWA SHINGO | 2 | 2012 |
| SHIBANUMA TETSUO | 2 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Saitama, JP | 9 | 2007–2011 |
| Kanagawa, JP | 6 | 2011–2021 |
| Funabashi, JP | 3 | 1991–1999 |
| Tokyo, JP | 1 | 2004 |
| Kurashiki, JP | 1 | 1998 |