Polarizing plate, method of manufacturing the same and liquid crystal display employing the same
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United States of America Patent
Stats
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Jun 16, 2015
Grant Date -
May 31, 2012
app pub date -
Jan 21, 2010
filing date -
Jul 15, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Disclosed are a polarizing plate manufacturable by a manufacturing method safe in work and less imposing a burden on the environment using protective films excellent in adhesion with the polarizer and a method for manufacturing the same. A liquid crystal display device using the polarizing plate and having both a large viewing angle and a high visibility (high contrast and so forth) is also disclosed. The polarizing plate made by holding both surfaces of the polarizer held with protective films is characterized in that at least one protective film is a protective film hydrophilized by either a plasma treatment or a corona treatment and that the surface energy of the protective films before the hydrophilization and the surface energy of the protective films after the hydrophilization satisfy a predetermined relational expression.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
KR | B1 | KR101679450 | Jan 21, 2010 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
PATENT SPECIFICATION | 편광판, 그의 제조 방법, 및 그를 이용한 액정 표시 장치 | Nov 24, 2016 | |||
CN | B | CN102472857 | Jan 21, 2010 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
GRANTED PATENT FOR INVENTION | Polarizing plate, method of manufacturing same and liquid crystal display employing same | Oct 30, 2013 | |||
JP | B2 | JP5218659 | Jan 21, 2010 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
PUBLISHED GRANTED PATENT (SECOND LEVEL) | 偏光板、その製造方法、及びそれを用いた液晶表示装置 | Jun 26, 2013 | |||
WO | A1 | WO2011007587 | Jan 21, 2010 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
INTERNATIONAL APPLICATION PUBLISHED WITH INTERNATIONAL SEARCH REPORT | 偏光板、その製造方法、及びそれを用いた液晶表示装置 | Jan 20, 2011 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
KONICA MINOLTA OPTO INC | HACHIOJI-SHI TOKYO 192-8505 |
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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Sato, Hideyuki | Tokyo, JP | 124 | 2447 |
# of filed Patents : 124 Total Citations : 2447 |
Cited Art Landscape
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Patent Citation Ranking
- 0 Citation Count
- C09K Class
- 0 % this patent is cited more than
- 10 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 16, 2026 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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 |
Full Text

Legal Events
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Jul 24, 2023 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Jul 24, 2023 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jun 16, 2023 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Jun 16, 2023 |
Feb 06, 2023 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Nov 29, 2018 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Jun 16, 2015 | I | Issuance | |
May 27, 2015 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Dec 05, 2014 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
May 31, 2012 | P | Published | |
Dec 12, 2011 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SATO, HIDEYUKI;REEL/FRAME:027509/0479 Owner name: KONICA MINOLTA OPTO, INC., JAPAN Effective Date: Dec 12, 2011 |
Jan 21, 2010 | F | Filing | |
Jul 15, 2009 | PD | Priority Date |

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