Extract from the Register of European Patents

EP About this file: EP0521508

EP0521508 - Method of producing zinc alloy powder for cell and alkaline cell with the zinc alloy powder [Right-click to bookmark this link]
StatusThe application has been withdrawn
Status updated on  16.01.1995
Database last updated on 21.03.2026
Most recent event   Tooltip05.09.2008Change - representativepublished on 08.10.2008  [2008/41]
Applicant(s)For all designated states
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
1006, Oaza Kadoma Kadoma-shi Osaka
571-8501 / JP
[N/P]
Former [1994/50]For all designated states
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
1006, Ohaza Kadoma
Kadoma-shi, Osaka-fu, 571 / JP
Former [1993/01]For all designated states
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD
1006-banchi, Oaza-Kadoma
Kadoma-shi, Osaka 571 / JP
Inventor(s)01 / Okubo, Kazutoshi
832-43, Misato, Heguricho
Ikoma-gu, Nara-ken / JP
02 / Inoue, Koichi
15-3, Fujisaka Higashimachi-2-chome
Hirakata-shi / JP
03 / Mototani, Yuji
37-7, Yawata Angozuka
Yawata-shi / JP
04 / Kitagawa, Kohei
4-22-1202, Kamishinden-4-chome
Toyonaka-shi / JP
05 / Sato, Koichi
23-17, Ikenomiya-2-chome
Hirakata-shi / JP
[1993/01]
Representative(s)Leinweber & Zimmermann
Patentanwalts-PartG mbB
European Patent Attorneys
Viktualienmarkt 8
80331 München / DE
[N/P]
Former [2008/41]Leinweber & Zimmermann
European Patent Attorneys Patentanwälte Rosental 7
80331 München / DE
Former [1993/01]Patentanwälte Leinweber & Zimmermann
Rosental 7/II Aufg.
D-80331 München / DE
Application number, filing date92111237.102.07.1992
[1993/01]
Priority number, dateJP1991016265703.07.1991         Original published format: JP 16265791
[1993/01]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0521508
Date:07.01.1993
Language:EN
[1993/01]
Type: A3 Search report 
No.:EP0521508
Date:14.04.1993
Language:EN
[1993/15]
Search report(s)(Supplementary) European search report - dispatched on:EP19.02.1993
ClassificationIPC:H01M4/42, B22F1/00, // C22C18/00
[1993/01]
CPC:
B22F1/147 (EP,KR,US); B22F9/026 (KR); B22F1/14 (EP,KR,US);
H01M10/24 (KR); H01M4/42 (EP,KR); H01M6/04 (KR);
H01M2300/0014 (KR); Y02E60/10 (EP,KR); Y02P70/50 (KR) (-)
Designated contracting statesBE,   CH,   DE,   FR,   GB,   IT,   LI,   NL,   SE [1993/01]
TitleGerman:Verfahren zur Herstellung von Zinklegierungspulver für eine Zelle und dieses Zinklegierungspulver enthaltende alkalische Zelle[1993/01]
English:Method of producing zinc alloy powder for cell and alkaline cell with the zinc alloy powder[1993/01]
French:Procédé pour préparer de la poudre en alliage de zinc pour une cellule et cellule alcaline comportant cette poudre en alliage de zinc[1993/01]
File destroyed:03.03.2001
Examination procedure07.06.1993Examination requested  [1993/31]
02.01.1995Application withdrawn by applicant  [1995/10]
Fees paidRenewal fee
29.07.1994Renewal fee patent year 03
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Documents cited:Search[Y] JP62105372  
 [A] JP56114283  
 [A] JP59033757  
 [A] JP58188057  
 [Y]   PATENT ABSTRACTS OF JAPAN vol. 11, no. 312 (E-548)(2759) 12 October 1987 & JP-A-62 105 372 ( ARUKARI KANDENCHI GIJUTSU KENKYU KUMIAI ) 15 May 1987 [Y]
 [Y]   CHEMICAL ABSTRACTS, vol. 105, no. 10, 8 September 1986, Columbus, Ohio, US; abstract no. 82361s, KASAHARA NOBUYORI ET AL 'ZINC POWDER FOR ALKALINE BATTERIES' [Y]
 [A]   PATENT ABSTRACTS OF JAPAN vol. 5, no. 192 (E-85)(864) 8 December 1981 & JP-A-56 114 283 ( MATSUSHITA DENKI SANGYO K.K. ) 8 September 1981 [A]
 [A]   PATENT ABSTRACTS OF JAPAN vol. 8, no. 119 (E-248)(1556) 5 June 1984 & JP-A-59 033 757 ( MATSUSHITA DENKI SANGYO K.K. ) 23 February 1984 [A]
 [A]   CHEMICAL ABSTRACTS, vol. 102, no. 20, 20 May 1985, Columbus, Ohio, US; abstract no. 171089q, MITSUI MINING AND SMELTING CO. 'AMALGAMATED ZINC POWDER FOR ALKALINE BATTERIES' [A]
 [A]   PATENT ABSTRACTS OF JAPAN vol. 8, no. 25 (E-225)(1462) 2 February 1984 & JP-A-58 188 057 ( CITIZEN TOKEI K.K. ) 2 November 1983 [A]
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