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Extract from the Register of European Patents

EP About this file: EP0576994

EP0576994 - A signal wave forming circuit [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  19.07.2002
Database last updated on 15.06.2024
Most recent event   Tooltip19.07.2002No opposition filed within time limitpublished on 04.09.2002  [2002/36]
Applicant(s)For all designated states
Hitachi, Ltd.
6, Kanda Surugadai 4-chome
Chiyoda-ku
Tokyo / JP
[N/P]
Former [2001/37]For all designated states
Hitachi, Ltd.
6, Kanda Surugadai 4-chome
Chiyoda-ku, Tokyo / JP
Former [1994/01]For all designated states
HITACHI, LTD.
6, Kanda Surugadai 4-chome
Chiyoda-ku, Tokyo 100 / JP
Inventor(s)01 / Kawamura, Masanobu
5-19-1, Josuihon-cho
Kodaira-shi, Tokyo / JP
02 / Kida, Hiroyuki
2-12-23-202, Honda
Kokubunji-shi, Tokyo / JP
03 / Kamada, Seiji
2-3-1-806, Takasuzu-cho
Hitachi-shi, Ibaraki / JP
04 / Tojo, Toshiyuki
2-3-11-207, Misumi-cho
Higashimurayama-shi, Tokyo / JP
05 / Ohkubo, Takeshi
312-4, Sachikawa
Oomiya-shi, Saitama / JP
06 / Matsuura, Hiroyuki
3-3-22, Uchida, Sugito-machi
Kitakatsushika-gun, Saitama / JP
07 / Yashiki, Naoki
1-17-10, Josuishin-machi
Kodaira-shi, Tokyo / JP
08 / Shibasaki, Nobuo
1-735-8, Ogawa-cho
Kodaira-shi, Tokyo / JP
[1994/03]
Former [1994/01]01 / Kawamura, Masanobu
5-19-1, Josuihon-cho
Kodaira-shi, Tokyo / JP
02 / Kida, Hiroyuki
2-12-23-202, Honda
Kokubunji-shi, Tokyo / JP
03 / Kamada, Seiji
2-3-1-806, Takasuzu-cho
Hitachi-shi, Ibaraki / JP
04 / Tojo, Toshiyuki
2-3-11-207, Misumi-cho
Higashimurayama-shi, Tokyo / JP
05 / Ohkubo, Takeshi
312-4, Sachikawa
Oomiya-shi, Saitama / JP
06 / Matsuura, Hiroyuki
3-3-22, Uchida, Sugito-machi
Kitakatsushika-gun, Saitama / JP
07 / Yashiki, Naoki
1-17-10, Josuihon-cho
Kodaira-shi, Tokyo / JP
08 / Shibasaki, Nobuo
1-735-8, Ogawa-cho
Kodaira-shi, Tokyo / JP
Representative(s)Strehl Schübel-Hopf & Partner
Maximilianstrasse 54
80538 München / DE
[N/P]
Former [1994/01]Strehl Schübel-Hopf Groening & Partner
Maximilianstrasse 54
D-80538 München / DE
Application number, filing date93110052.323.06.1993
[1994/01]
Priority number, dateJP1992017255130.06.1992         Original published format: JP 17255192
JP1993014070011.06.1993         Original published format: JP 14070093
[1994/01]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0576994
Date:05.01.1994
Language:EN
[1994/01]
Type: B1 Patent specification 
No.:EP0576994
Date:12.09.2001
Language:EN
[2001/37]
Search report(s)(Supplementary) European search report - dispatched on:EP15.10.1993
ClassificationIPC:G06F1/035
[1994/01]
CPC:
B06B1/0238 (KR); G06F1/035 (EP,US); H03K3/78 (KR);
H03M1/665 (KR)
Designated contracting statesDE,   FR,   GB,   IT [1994/01]
TitleGerman:Wellenformerzeugungsschaltung[1994/01]
English:A signal wave forming circuit[1994/01]
French:Circuit de génération de formes d'onde[1994/01]
Examination procedure05.07.1994Examination requested  [1994/35]
12.10.2000Despatch of communication of intention to grant (Approval: Yes)
08.03.2001Communication of intention to grant the patent
07.06.2001Fee for grant paid
07.06.2001Fee for publishing/printing paid
Opposition(s)13.06.2002No opposition filed within time limit [2002/36]
Fees paidRenewal fee
26.06.1995Renewal fee patent year 03
27.06.1996Renewal fee patent year 04
26.06.1997Renewal fee patent year 05
25.06.1998Renewal fee patent year 06
28.06.1999Renewal fee patent year 07
20.06.2000Renewal fee patent year 08
26.06.2001Renewal fee patent year 09
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Documents cited:Search[X]US4225936  (LESCHE WOLFGANG)
 [X]  - ELECTRONIC ENGINEER vol. 31, no. 3, March 1972, RADNOR US pages 49 - 50 TRAVIS 'Incremental lookup tables reduce ROM size'
 [X]  - IBM TECHNICAL DISCLOSURE BULLETIN. vol. 24, no. 1B, June 1981, NEW YORK US pages 512 - 513 CUKIER 'Programmable digital frequency synthesizer'
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.