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EP0644549
European procedure
Extract from the Register of European Patents
EP About this file: EP0644549
| EP0644549 - Method of flash writing with small operation current and semiconductor memory circuit according to the method [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 05.04.2002 Database last updated on 13.09.2024 | Most recent event Tooltip | 05.04.2002 | No opposition filed within time limit | published on 22.05.2002 [2002/21] | Applicant(s) | For all designated states NEC Corporation 7-1, Shiba 5-chome Minato-ku Tokyo 108-8001 / JP | [N/P] |
| Former [2001/22] | For all designated states NEC CORPORATION 7-1, Shiba 5-chome, Minato-ku Tokyo / JP | ||
| Former [1995/12] | For all designated states NEC CORPORATION 7-1, Shiba 5-chome Minato-ku Tokyo / JP | Inventor(s) | 01 /
Kusakari, Takashi, c/o NEC Corporation 7-1, Shiba 5-chome, Minato-ku Tokyo / JP | [1995/12] | Representative(s) | Baronetzky, Klaus, et al Splanemann Patentanwälte Partnerschaft Rumfordstrasse 7 80469 München / DE | [N/P] |
| Former [1995/12] | Baronetzky, Klaus, Dipl.-Ing., et al Patentanwälte Dipl.-Ing. R. Splanemann, Dr. B. Reitzner, Dipl.-Ing. K. Baronetzky Tal 13 D-80331 München / DE | Application number, filing date | 94113837.2 | 03.09.1994 | [1995/12] | Priority number, date | JP19930228392 | 14.09.1993 Original published format: JP 22839293 | [1995/12] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0644549 | Date: | 22.03.1995 | Language: | EN | [1995/12] | Type: | A3 Search report | No.: | EP0644549 | Date: | 26.06.1996 | [1996/26] | Type: | B1 Patent specification | No.: | EP0644549 | Date: | 30.05.2001 | Language: | EN | [2001/22] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 08.05.1996 | Classification | IPC: | G11C7/00, G11C11/407 | [1996/24] | CPC: |
G11C7/20 (EP,US);
G11C7/22 (EP,KR,US);
G11C7/06 (KR);
G11C7/1078 (KR)
|
| Former IPC [1995/12] | G11C7/00 | Designated contracting states | DE, FR, GB, IT [1995/12] | Title | German: | Flash-Schreibeverfahren mit niedrigem Strom und Halbleiterspeicherschaltung nach einem solchen Verfahren | [2001/22] | English: | Method of flash writing with small operation current and semiconductor memory circuit according to the method | [1995/12] | French: | Méthode d'écriture en mode flash à courant d'opération faible et circuit de mémoire à semi-conducteurs selon cette méthode | [1995/12] |
| Former [1995/12] | Flash-Schreibeverfahren mit niedrigem Strom und Halbleiterspeicherschaltung nach einem solchem Verfahren | Examination procedure | 27.12.1996 | Examination requested [1997/10] | 18.11.1998 | Despatch of a communication from the examining division (Time limit: M04) | 22.03.1999 | Reply to a communication from the examining division | 01.04.1999 | Despatch of a communication from the examining division (Time limit: M04) | 02.08.1999 | Reply to a communication from the examining division | 14.08.2000 | Despatch of communication of intention to grant (Approval: Yes) | 27.11.2000 | Communication of intention to grant the patent | 21.02.2001 | Fee for grant paid | 21.02.2001 | Fee for publishing/printing paid | Opposition(s) | 01.03.2002 | No opposition filed within time limit [2002/21] | Fees paid | Renewal fee | 02.08.1996 | Renewal fee patent year 03 | 22.08.1997 | Renewal fee patent year 04 | 19.08.1998 | Renewal fee patent year 05 | 06.08.1999 | Renewal fee patent year 06 | 04.08.2000 | Renewal fee patent year 07 |
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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 | [A]US4823322 (MIYATAKE HIDESHI [JP], et al) [A] 1-7 * column 4, line 29 - column 5, line 60; figures 1,5 *; | [A]US4873672 (ETOH JUN [JP], et al) [A] 4* column 8, line 42 - column 10, line 7; figures 8-11 *; | [A]EP0337172 (TOSHIBA KK [JP]) [A] 1-7 * column 3, line 11 - column 8, line 5; figures 2-7 *; | [DA]EP0352572 (NEC CORP [JP]) [DA] 1-7 * column 6, line 30 - column 10, line 34; figures 4-6 * | by applicant | EP0337172 | JPH0229987 |