Inventor

Takafumi Sakuramoto

Inventor

Osaka, JP

Overview

17→

Patents

1992–2009

Patent span

Physics

Primary field (CPC G)

Patents· 17 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G02Bprimary

G02BOptical elements, systems or apparatus27%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein27%

Y10TTechnical subjects covered by former us classification9%

C09KMaterials for miscellaneous applications, not provided for elsewhere7%

B41MPrinting, duplicating, marking, or copying processes5%

B44CProducing decorative effects5%

G09FDisplaying5%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form2%

C03CChemical composition of glasses, glazes or vitreous enamels2%

C04BLime, magnesia2%

PatentTitleYear

7,532,398'Light pipe and polarized-light source'2009 7,515,339'Light pipe and polarized-light source'2009 7,446,938'Light pipe and polarized-light source'2008 6,970,216'Optical element and liquid-crystal display'2005 6,952,310'Light pipe and polarized-light source'2005 6,876,414'Semi-transmissible reflector, semi-transmission type polarizer and liquid-crystal display device using the sames'2005 6,850,295'Light diffusing plate, optical element, and liquid-crystal display'2005 6,706,339'Laminate polarizer and liquid crystal display'2004 6,683,717'Neutral polarizer and liquid crystal display'2004 6,392,802'Optical film and optical elements'2002 6,369,945'Optical film, optical member and optical element'2002 6,361,838'Optical film, optical member and optical element'2002 6,236,439'Wide viewing angle polarizing plate and liquid crystal display'2001 5,308,684'Burning pattern sheet'1994 5,209,796'Method of making a burned pattern'1993 5,204,163'Sheet for formation of burned pattern and burning label'1993 5,145,726'Sheet for formation of burned pattern and burning label'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2009Patents assigned to NITTO DENKO CORP (17)· patent assignee history

1992–2009Based in Osaka, JP· patent location history

2005Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NITTO DENKO CORP	17	1992–2009

Locations

Location	Patents	Span
Osaka, JP	16	1992–2009
Ibaraki, JP	1	2005