Source: http://www.google.com/patents/US7833457?dq=Frischling
Timestamp: 2014-04-19 02:14:36
Document Index: 226260568

Matched Legal Cases: ['Application No. 200510108461', 'Application No. 2003', 'Application No. 2005', 'Application No. 2005', 'Application No. 2003', 'Application No. 10', 'Application No. 10']

Patent US7833457 - Method for producing birefringent film, optical film and image display ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA birefringent film with excellent uniformity in in-plane retardation, retardation in the thickness direction, and alignment axis is provided. The birefringent film is produced in such a manner that, in the step of stretching a polymer film, the polymer film is stretched in a width direction while being...http://www.google.com/patents/US7833457?utm_source=gb-gplus-sharePatent US7833457 - Method for producing birefringent film, optical film and image display device using the sameAdvanced Patent SearchPublication numberUS7833457 B2Publication typeGrantApplication numberUS 10/554,224Publication dateNov 16, 2010Filing dateOct 1, 2004Priority dateDec 16, 2003Also published asCN1791817A, CN100419474C, US20060275559, WO2005059609A1Publication number10554224, 554224, US 7833457 B2, US 7833457B2, US-B2-7833457, US7833457 B2, US7833457B2InventorsKuniaki Ishibashi, Kazuki Tsuchimoto, Hiroyuki YoshimiOriginal AssigneeNitto Denko CorporationExport CitationBiBTeX, EndNote, RefManPatent Citations (55), Non-Patent Citations (12), Referenced by (1), Classifications (13), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetMethod for producing birefringent film, optical film and image display device using the sameUS 7833457 B2Abstract A birefringent film with excellent uniformity in in-plane retardation, retardation in the thickness direction, and alignment axis is provided. The birefringent film is produced in such a manner that, in the step of stretching a polymer film, the polymer film is stretched in a width direction while being shrunk in a longitudinal direction, and assuming that lengths in the width direction and the longitudinal direction of the polymer film before being stretched are 1, a change ratio (STD) of the length in the width direction of the polymer film resulting from the stretching and a change ratio (SMD) of the length in the longitudinal direction of the polymer film resulting from the shrinking satisfy the following formula (1).
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SakamakiMethod for stretching polymer film, polarizing film and method for producing the same, polarizer, birefringencial film and liquid crystal display deviceUS20020130997Mar 14, 2002Sep 19, 2002Nitto Denko CorporationOptical film, polarizer and liquid-crystal display deviceUS20020190406May 28, 2002Dec 19, 2002Merrill William WardProcesses and apparatus for making transversely drawn films with substantially uniaxial characterUS20030020208May 23, 2002Jan 30, 2003Koji TasakaCellulose ester film, its manufacturing method, optical retardation film, optical compensation sheet, elliptic polarizing plate, and image displayUS20040022965 *Jul 31, 2003Feb 5, 2004Fuji Photo Film Co., Ltd.Method for stretching polymer film, polarizing film and method for producing the same, polarizer, birefringencial film and liquid crystal display deviceUS20040052937Sep 12, 2003Mar 18, 2004Fuji Photo Film Co., Ltd.Sheet polarizer, optical film, liquid crystal display, and method of producing sheet polarizersUS20040058093 *Sep 16, 2003Mar 25, 2004Hiroshi NakashimaMethod of producing filmUS20040099992Nov 27, 2002May 27, 2004Merrill William W.Methods and devices for stretching polymer filmsUS20040119178 *Dec 4, 2003Jun 24, 2004Nitto Denko CorporationMethod for producing polarizing plate, polarizing plate and image display device using the sameUS20040241344Aug 29, 2002Dec 2, 2004Hiroyuki KawanishiMethod for producing optical compensating film, optical compensating film circularly polarizing plate, and liquid crystal displayUS20050018328Jun 9, 2004Jan 27, 2005Masahiro HataOptical film, polarizing optical film, and image viewing displayUS20050099562Feb 18, 2003May 12, 2005Yuuichi NishikoujiStacked phase shift sheet, stacked polarizing plate including the same and image displayUS20050213012Mar 21, 2005Sep 29, 2005Nitto Denko CorporationIPS mode liquid crystal displayUS20060077326Oct 6, 2005Apr 13, 2006Nitto Denko CorporationRetardation-film integrated polarizing plate and method of manufacturing the sameUS20060078693 *Oct 6, 2005Apr 13, 2006Nitto Denko CorporationMethod of manufacturing a birefringent film, optical film using the same, liquid crystal panel, liquid crystal display device and imaged display deviceUS20060262401 *Mar 19, 2004Nov 23, 2006Nitto Denko CorporationOptical element, polarizing element, lighting device, and liquid crystal displayUS20060275559Oct 1, 2004Dec 7, 2006Nitto Denko CorporationMethod for producing birefringent film, optical film and image display device using the sameEP1160591A1Nov 10, 2000Dec 5, 2001Kaneka CorporationTransparent filmJP2000190385A Title not availableJP2000511296A Title not availableJP2001049110A Title not availableJP2001343529A Title not availableJP2002090530A Title not availableJP2002296422A Title not availableJP2003315554A Title not availableJP2004144942A Title not availableJPH0323405A Title not availableJPH0511114A Title not availableJPH0651116A Title not availableJPH0651119A Title not availableJPH02191904A Title 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Oct. 28, 1992. Umemoto et al.3English language machine translation of JP-2000-131693. May 12, 2000. Omuro et al.4English language machine translation of JP-2005-181450. Jul. 7, 2005. Ishibashi et al.5Japanese Office Action dated Aug. 17, 2010, issued in corresponding Japanese Patent Application No. 2003-418558.6Japanese Office Action dated Feb. 19, 2010, issued in corresponding Japanese Patent Application No. 2005-034644 ( With Translation).7Japanese Office Action dated Feb. 19, 2010, issued in Japanese Patent Application No. 2005-034645 (With Translation).8Japanese Office Action dated Oct. 14, 2008 (mailing date), issued in corresponding Japanese Patent Application No. 2003-418558.9JPO Website English language Machine Translation of JP2002-269781, Nakajima Hiroshi, Apr. 8, 2004.10Korean Office Action dated Oct. 31, 2006, issued in Korean Patent Application No. 10-2005-7019368.11Office Action of Corresponding Korean Patent Application No. 10-2005-7019368 mailed Oct. 31, 2006.12T. Yamada et al.; "Analyses of Bowing Phenomena in Successive Transverse Stretching and Thermosetting Process for Biaxially Oriented Film", Intern. Polymer Processing, vol. X, 1995, pp. 334-340. Cited in spec.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8551284 *Jul 20, 2010Oct 8, 2013Nitto Denko CorporationPolarizing film, laminated film and liquid crystal display* Cited by examinerClassifications U.S. Classification264/290.2, 264/134, 264/291International ClassificationG02F1/1335, B29L11/00, G02B5/30, B29C55/00, B29C55/02, G02F1/13363Cooperative ClassificationG02B5/3083, G02B5/3033European ClassificationG02B5/30P1, G02B5/30RLegal EventsDateCodeEventDescriptionOct 24, 2005ASAssignmentOwner name: NITTO DENKO CORPORATION, JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ISHIBASHI, KUNIAKI;TSUCHIMOTO, KAZUKI;YOSHIMI, HIROYUKI;REEL/FRAME:017887/0602Effective date: 20050610RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google