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Extract from the Register of European Patents

EP About this file: EP1176224

EP1176224 - Nitrided maraging steel and method of manufacturing thereof [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  20.02.2015
Database last updated on 14.11.2024
Most recent event   Tooltip20.02.2015No opposition filed within time limitpublished on 25.03.2015  [2015/13]
Applicant(s)For all designated states
Dowa Thermotech Co., Ltd.
4-14-1, Soto-Kanda, Chiyoda-ku
Tokyo 101-0021 / JP
[2011/24]
Former [2007/46]For all designated states
NISSAN MOTOR CO., LTD.
2 Takara-cho, Kanagawa-ku
Yokohama-shi Kanagawa-ken / JP
For all designated states
Dowa Thermotech Co., Ltd.
4-14-1, Soto-Kanda, Chiyoda-ku
Tokyo 101-0021 / JP
Former [2007/45]For all designated states
NISSAN MOTOR CO., LTD.
2 Takara-cho, Kanagawa-ku
Yokohama-shi Kanagawa-ken / JP
For all designated states
Dowa Holdings Co., Ltd.
14-1, Sotokanda 4-chome Chiyoda-ku
Tokyo / JP
Former [2002/05]For all designated states
NISSAN MOTOR CO., LTD.
2 Takara-cho, Kanagawa-ku
Yokohama-shi Kanagawa-ken / JP
For all designated states
Dowa Mining Co., Ltd.
8-2, Marunouchi 1-chome
Chiyoda-ku, Tokyo / JP
Inventor(s)01 / Heishi, Yuichi
3-15-7, Aoinishi
Hamamatsu-shi, Shizuoka-ken / JP
02 / Suzuki, Masahiro
44-2, Otanidai-machi
Mooka-shi, Tochigi-ken / JP
03 / Tani, Ikuo
1-33-12-407, Sagamigaoka
Zama-shi, Kanagawa-ken / JP
04 / Watanabe, Youichi
2-8-31-614, Saido
Konan-ku
Yokohama-shi, Kanagawa-ken / JP
05 / Umegaki, Shunzou
55-1-303, Mameguchidai
Naka-ku
Yokohama-shi, Kanagawa-ken / JP
06 / Akimoto, Kiyota
1-1-6, Nishikasai
Edogawa-ku
Tokyo / JP
07 / Yokose, Keiji
2-50-17, Miyazawa
Seya-ku
Yokohama-shi, Kanagawa-ken / JP
 [2014/16]
Former [2002/05]01 / Heishi, Yuichi
3-15-7, Aoinishi
Hamamatsu-shi, Shizuoka-ken / JP
02 / Suzuki, Masahiro
44-2, Otanidai-machi
Mooka-shi, Tochigi-ken / JP
03 / Tani, Ikuo
1-33-12-407, Sagamigaoka
Zama-shi, Kanagawa-ken / JP
04 / Watanabe, Youichi
2-8-31-614, Saido, Konan-ku
Yokohama-shi, Kanagawa-ken / JP
05 / Umegaki, Shunzou
55-1-303, Mameguchidai, Naka-ku
Yokohama-shi, Kanagawa-ken / JP
06 / Akimoto, Kiyota
1-1-6, Nishikasai, Edogawa-ku
Tokyo / JP
07 / Yokose, Keiji
2-50-17, Miyazawa, Seya-ku
Yokohama-shi, Kanagawa-ken / JP
Representative(s)Weber, Joachim
Hoefer & Partner
Patentanwälte
Pilgersheimer Strasse 20
81543 München / DE
[2014/16]
Former [2002/05]Weber, Joachim, Dr.
Hoefer, Schmitz, Weber & Partner Patentanwälte Gabriel-Max-Strasse 29
81545 München / DE
Application number, filing date01117289.717.07.2001
[2002/05]
Priority number, dateJP2000022220924.07.2000         Original published format: JP 2000222209
JP2000037110706.12.2000         Original published format: JP 2000371107
[2002/05]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP1176224
Date:30.01.2002
Language:EN
[2002/05]
Type: B1 Patent specification 
No.:EP1176224
Date:16.04.2014
Language:EN
[2014/16]
Search report(s)(Supplementary) European search report - dispatched on:EP19.11.2001
ClassificationIPC:C23C8/26, F16G5/16
[2002/05]
CPC:
C23C8/26 (EP,US); F16G5/16 (EP,US)
Designated contracting statesDE,   FR,   GB [2002/42]
Former [2002/05]AT,  BE,  CH,  CY,  DE,  DK,  ES,  FI,  FR,  GB,  GR,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  SE,  TR 
TitleGerman:Nitrierter martensitaushärtender Stahl und Verfahren zu dessen Herstellung[2013/48]
English:Nitrided maraging steel and method of manufacturing thereof[2002/05]
French:Acier maraging nitruré et procédé pour sa fabrication[2002/05]
Former [2002/05]Nitrierter martensitaushärtender Stahl und Verfahren zu deren Herstellung
Examination procedure17.07.2001Examination requested  [2002/05]
16.10.2009Despatch of a communication from the examining division (Time limit: M04)
27.01.2010Reply to a communication from the examining division
24.09.2010Despatch of a communication from the examining division (Time limit: M06)
04.04.2011Reply to a communication from the examining division
29.11.2011Despatch of a communication from the examining division (Time limit: M06)
04.05.2012Reply to a communication from the examining division
10.12.2013Communication of intention to grant the patent
26.02.2014Fee for grant paid
26.02.2014Fee for publishing/printing paid
Divisional application(s)The date of the Examining Division's first communication in respect of the earliest application for which a communication has been issued is  16.10.2009
Opposition(s)19.01.2015No opposition filed within time limit [2015/13]
Fees paidRenewal fee
31.07.2003Renewal fee patent year 03
30.07.2004Renewal fee patent year 04
26.07.2005Renewal fee patent year 05
28.07.2006Renewal fee patent year 06
26.07.2007Renewal fee patent year 07
28.07.2008Renewal fee patent year 08
30.07.2009Renewal fee patent year 09
30.07.2010Renewal fee patent year 10
29.07.2011Renewal fee patent year 11
31.07.2012Renewal fee patent year 12
31.07.2013Renewal fee patent year 13
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Documents cited:Search[AY]JPS60204825  ;
 [YA]JPH11229113  ;
 [A]JPS61147814  ;
 [A]JPS5985711  ;
 [A]JPS609857  ;
 [A]JPS62224665  ;
 [A]JPS62192528  ;
 [A]US4969378  (LU MOU-CHIH [US], et al) [A] 1 * column 6, line 2 - column 7, line 13; claim 1 *;
 [A]US5953969  (ROSENHAN ROLF GUENTER [DE]) [A] 1 * claims 1,5 *;
 [A]US4698050  (HATTORI TORAO [JP], et al) [A] 1,5 * column 4, line 46 - line 59 * * column 5, line 5 - line 32; claims 1-3,6-8,11,14 *;
 [A]JPS6160874
 [AY]  - PATENT ABSTRACTS OF JAPAN, (19860315), vol. 010, no. 067, Database accession no. (C - 333), & JP60204825 A 19851016 (MITSUBISHI JUKOGYO KK) [A] 1,5 * abstract * [Y] 9
 [YA]  - PATENT ABSTRACTS OF JAPAN, (19991130), vol. 1999, no. 13, & JP11229113 A 19990824 (DOWA MINING CO LTD) [Y] 9 * abstract * [A] 14
 [A]  - PATENT ABSTRACTS OF JAPAN, (19861120), vol. 010, no. 345, Database accession no. (C - 386), & JP61147814 A 19860705 (KOBE STEEL LTD) [A] 1,4,5,8,9,11,12,16,18,19 * abstract *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19840907), vol. 008, no. 195, Database accession no. (M - 323), & JP59085711 A 19840517 (PURASU ENGINEERING KK) [A] 1,9 * abstract *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19850523), vol. 009, no. 119, Database accession no. (C - 282), & JP60009857 A 19850118 (PURASU ENGINEERING KK) [A] 1,9 * abstract *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19880325), vol. 012, no. 092, Database accession no. (C - 483), & JP62224665 A 19871002 (TOYOTA CENTRAL RES & DEV LAB INC) [A] 1,3,5,7,9,11,12,16,18,19 * abstract *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19880212), vol. 012, no. 047, Database accession no. (C - 475), & JP62192528 A 19870824 (TOYOTA CENTRAL RES & DEV LAB INC) [A] 1,4,9,11 * abstract *
 [A]  - DATABASE WPI, 1, Derwent World Patents Index, vol. 1986, no. 19, Database accession no. 1986-121993, XP002182223 & JPS6160874 A 19860328 (OYO KAGAKU KENKYUSH) [A] 1,2 * abstract *
ExaminationEP1055739
 EP1184591
 JP7116585B
by applicantJPS5980772
 JP2000222209
 JP2000371107
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.