Inventor

Leonid Y. Ignatov

Inventor

Moscow, RU

Overview

7→

Patents

1998–2006

Patent span

Physics

Primary field (CPC G)

Patents· 7 as inventor

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

G02Bprimary

G02BOptical elements, systems or apparatus29%

C09KMaterials for miscellaneous applications, not provided for elsewhere17%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments13%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein13%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%

Y10TTechnical subjects covered by former us classification8%

B44FSpecial designs or pictures4%

C07CAcyclic or carbocyclic compounds4%

C07DHeterocyclic compounds4%

PatentTitleYear

7,031,053'Dichroic polarizer and material'2006 6,846,522'Decorative material and method of its fabrication'2005 6,563,640'Dichroic polarizer and method for making the same'2003 6,399,166'Liquid crystal display and method'2002 6,174,394'Method for thermostable and lightfast dichroic light polarizers'2001 6,049,428'Dichroic light polarizers'2000 5,739,296'Method and materials for thermostable and lightfast dichroic light polarizers'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998Patents assigned to RUSSIAN TECHNOLOGY GROUP (1)· patent assignee history

1998–2006Based in Moscow, RU· patent location history

2000–2005Patents assigned to OPTIVA INC (5)· patent assignee history

2006Patents assigned to NITTO DENKO CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
OPTIVA INC	5	2000–2005
NITTO DENKO CORP	1	2006
RUSSIAN TECHNOLOGY GROUP	1	1998

Locations

Location	Patents	Span
Moscow, RU	7	1998–2006