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EP0825176
European procedure
Extract from the Register of European Patents
EP About this file: EP0825176
| EP0825176 - Azine derivative, process for the preparation thereof, nematic liquid crystal composition and liquid crystal display system comprising same [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 21.09.2002 Database last updated on 28.06.2024 | Most recent event Tooltip | 21.09.2002 | No opposition filed within time limit | published on 06.11.2002 [2002/45] | Applicant(s) | For all designated states DAINIPPON INK AND CHEMICALS, INC. 35-58, Sakashita 3-chome Itabashi-ku Tokyo / JP | [N/P] |
| Former [1998/09] | For all designated states DAINIPPON INK AND CHEMICALS, INC. 35-58, Sakashita 3-chome Itabashi-ku Tokyo / JP | Inventor(s) | 01 /
Takatsu, Haruyoshi 3-6-27, Nakahara Higashiyamoto-shi, Tokyo / JP | 02 /
Takehara, Sadao 2-23-16, Haruji Sakura-shi, Chiba / JP | 03 /
Takeuchi, Kiyofumi 1-67-12, Takashimadaira Itabashi-ku, Tokyo / JP | 04 /
Negishi, Makoto 1-22-12, Tamagawa Ota-ku, Tokyo / JP | 05 /
Osawa, Norie 1897, Uchijuku, Kobari, Ina-machi Kita-adachi-gun, Saitama / JP | 06 /
Osawa, Masashi 1897, Uchijuku, Kobari, Ina-machi Kita-adachi-gun, Saitama / JP | 07 /
Ogawa, Shinji 1122-2-304, Horisaki-cho Omiya-shi, Saitama / JP | 08 /
Yanagihara, Hirokazu Katou-Heights 208, 3-78, Kotobuki Ina-machi, Kita-adachi-gun, Saitama / JP | [1998/09] | Representative(s) | Kraus, Walter, et al Patentanwälte Kraus, Weisert & Partner Thomas-Wimmer-Ring 15 80539 München / DE | [N/P] |
| Former [1998/09] | Kraus, Walter, Dr., et al Patentanwälte Kraus, Weisert & Partner Thomas-Wimmer-Ring 15 80539 München / DE | Application number, filing date | 97114465.4 | 21.08.1997 | [1998/09] | Priority number, date | JP19960221212 | 22.08.1996 Original published format: JP 22121296 | JP19960230089 | 30.08.1996 Original published format: JP 23008996 | JP19960240405 | 11.09.1996 Original published format: JP 24040596 | JP19960307945 | 19.11.1996 Original published format: JP 30794596 | JP19970141741 | 30.05.1997 Original published format: JP 14174197 | [1998/09] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0825176 | Date: | 25.02.1998 | Language: | EN | [1998/09] | Type: | B1 Patent specification | No.: | EP0825176 | Date: | 14.11.2001 | Language: | EN | [2001/46] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 31.10.1997 | Classification | IPC: | C07C251/24, C09K19/24, C09K19/30 | [1998/09] | CPC: |
C09K19/42 (EP,US);
C07C251/88 (EP,US);
C09K19/24 (EP,US);
C09K19/3086 (EP,US);
C09K19/46 (EP,US);
C07C2601/14 (EP,US)
| Designated contracting states | DE, GB [1998/45] |
| Former [1998/09] | AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LI, LU, MC, NL, PT, SE | Title | German: | Azin-Derivat, Verfahren zu seiner Herstellung, diese enthaltende nematische flüssigkristalline Zusammensetzung und diese enthaltende flüssigkristalline Anzeigevorrichtung | [2001/45] | English: | Azine derivative, process for the preparation thereof, nematic liquid crystal composition and liquid crystal display system comprising same | [1998/09] | French: | Dérivés d'azine, procédé pour leur préparation, composition de cristaux liquides nématiques et dispositif d'affichage à cristaux liquides les comprenant | [1998/09] |
| Former [1998/09] | Azin-Derivat, Verfahren zu ihrer Herstellung, die enthaltende nematische flüssigkristalline Zusammensetzung und flüssigkristalline Anzeigevorrichtung | Examination procedure | 06.08.1998 | Examination requested [1998/41] | 30.07.1999 | Despatch of a communication from the examining division (Time limit: M06) | 07.01.2000 | Reply to a communication from the examining division | 25.02.2000 | Despatch of a communication from the examining division (Time limit: M06) | 06.09.2000 | Reply to a communication from the examining division | 10.01.2001 | Despatch of communication of intention to grant (Approval: No) | 26.04.2001 | Despatch of communication of intention to grant (Approval: later approval) | 11.05.2001 | Communication of intention to grant the patent | 26.07.2001 | Fee for grant paid | 26.07.2001 | Fee for publishing/printing paid | Opposition(s) | 15.08.2002 | No opposition filed within time limit [2002/45] | Fees paid | Renewal fee | 06.08.1999 | Renewal fee patent year 03 | 04.08.2000 | Renewal fee patent year 04 | 10.07.2001 | Renewal fee patent year 05 |
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| Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court. | Documents cited: | Search | [DY]GB2010274 (LIQUID XTAL DISPLAYS INC) [DY] 1-18* the whole document *; | [X] - CENTORE R ET AL, "Crystal structure analysis of some mesogenic cyanoazines", CHEMICAL ABSTRACTS, (19960401), vol. 124, no. 14, Database accession no. 190019, XP002043627 [X] 1,2,7-18 * abstract * | [X] - KADRY A M ET AL, "Utility of o-sulfamoylbenzhydrazide in the synthesis of mixed azines", CHEMICAL ABSTRACTS, (19900507), vol. 112, no. 19, Database accession no. 178181, XP002043628 [X] 1,2,7,8 * abstract * | [Y] - SEREDA S V ET AL, "Crystal and molecular structure of smectic 4,4'-bis(difluoromethoxy)benzylideneazine, p-F2HCO:C6H4:CH:N:N:CH:C6H 4:OCHF2-p'", CHEMICAL ABSTRACTS, (19880516), vol. 108, no. 20, Database accession no. 177668, XP002043629 [Y] 1-18 * abstract * |