Inventor
Takanari Kusafuka
Inventor
Gifu, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus22%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests22%
B29CShaping or joining of plastics11%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein11%
G11BInformation storage based on relative movement between record carrier and transducer11%
B29DProducing particular articles from plastics or from substances in a plastic state6%
B29LIndexing scheme associated with subclass b29c, relating to particular articles6%
F21SNon-portable lighting devices6%
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 emitted6%
PatentTitleYear
6,735,166'Optical disk with pattern and fabrication method thereof'20046,273,577'Light guide plate, surface light source using the light guide plate, and liquid crystal display using the surface light source'20016,250,767'Light guide plate, surface light source and display using the same'20016,132,652'Method of producing lightguide plate for surface light source, lightguide plate for surface light source and surface light source using the same'20005,997,276'Optical disc manufacturing apparatus'19995,999,685'Light guide plate and surface light source using the light guide plate'1999Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999–2004Patents assigned to SANYO ELECTRIC CO (6)· patent assignee history
1999–2004Based in Gifu, JP· patent location history
2000–2001Based in Nishikamo-gun, JP· patent location history
2001Based in Yoro-gun, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SANYO ELECTRIC CO | 6 | 1999–2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Gifu, JP | 3 | 1999–2004 |
| Nishikamo-gun, JP | 2 | 2000–2001 |
| Yoro-gun, JP | 1 | 2001 |