OPTICALLY ANISOTROPIC SUBSTANCE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Nov 25, 2010
app pub date -
May 17, 2010
filing date -
May 22, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Importance

US Family Size
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Non-US Coverage
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Abstract
Subject to be Solved The invention aims to provide a polyamic acid-type photo-alignment layer in a heating process only below approximately 140° C., and to provide an optically anisotropic substance in which various polymerizable liquid crystal compositions are uniformly oriented by use of the layer.Means for Solving the Subject An optically anisotropic substance obtained by applying a polyamic acid varnish which is a composition including a polyamic acid having a divalent azobenzene group in the principal chain or its derivative, or a composition including a mixture of both this polyamic acid or its derivative and other polyamic acids or its derivative as a polymer component, to a supporting substrate, by drying the resultant layer at a temperature range of approximately 50° C. to approximately 140° C., by carrying out alignment treatment by irradiation of the layer with light, applying a polymerizable liquid crystal composition to a alignment layer formed by means of the treatment, and polymerizing the composition.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
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JP | A | JP2011008218 | Feb 03, 2010 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
Published unexamined patent application | OPTICALLY ANISOTROPIC SUBSTANCE | Jan 13, 2011 | |||
KR | A | KR20100126182 | Mar 18, 2010 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
UNEXAMINED PATENT APPLICATION | OPTICAL ANISOTROPIC MATERIAL | Dec 01, 2010 | |||
TW | B | TWI633127 | May 18, 2010 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
GRANTED PATENT OR PATENT OF ADDITION | OPTICAL ANISOTROPIC BODY | Aug 21, 2018 | |||
US | A1 | US20120274888 | Jul 12, 2012 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
FIRST PUBLISHED PATENT APPLICATION | OPTICALLY ANISOTROPIC SUBSTANCE | Nov 01, 2012 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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JNC PETROCHEMICAL CORPORATION | 2-1 OTEMACHI 2-CHOME CHIYODA-KU TOKYO 100-0004 |
International Classification(s)

- 2010 Application Filing Year
- C09K Class
- 1626 Applications Filed
- 977 Patents Issued To-Date
- 60.09 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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HIRAI, YOSHIHARU | CHIBA, JP | 28 | 190 |
# of filed Patents : 28 Total Citations : 190 | |||
TAMURA, NORIO | CHIBA, JP | 16 | 95 |
# of filed Patents : 16 Total Citations : 95 |
Cited Art Landscape
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Patent Citation Ranking
- 6 Citation Count
- C09K Class
- 8.16 % this patent is cited more than
- 15 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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