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Extract from the Register of European Patents

EP About this file: EP0771772

EP0771772 - Aluminium nitride sintered bodies and their manufacture [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  11.01.2002
Database last updated on 09.07.2024
Most recent event   Tooltip11.01.2002No opposition filed within time limitpublished on 27.02.2002  [2002/09]
Applicant(s)For all designated states
NGK Insulators, Ltd.
2-56, Suda-Cho, Mizuho-ku
Nagoya City, Aichi Pref. / JP
[N/P]
Former [1997/19]For all designated states
NGK INSULATORS, LTD.
2-56, Suda-cho, Mizuho-ku
Nagoya City Aichi Pref. / JP
Inventor(s)01 / Yamada, Naohito
306, Chateau Kachigawa-II, 1-15, Yamato-Dori
Kasugai City, Aichi Prefecture / JP
02 / Mori, Yukimasa
201, Dai-ni-Taiko Mansion, 19-9 Enjo-Cho, Showa-Ku
Nagoya City, Aichi Prefecture / JP
03 / Bessho, Yuki
1785-63, Ohaza-Shikata, Shikatsu-Cho
Nishikasugai-Gun, Aichi Prefecture / JP
04 / Kobayashi, Hiromichi
11-1, Ukihashi 1-chome
Yokkaichi City, Mie Prefecture / JP
[1997/19]
Representative(s)Paget, Hugh Charles Edward, et al
Mewburn Ellis LLP
City Tower
40 Basinghall Street
London EC2V 5DE / GB
[N/P]
Former [1997/19]Paget, Hugh Charles Edward, et al
MEWBURN ELLIS York House 23 Kingsway
London WC2B 6HP / GB
Application number, filing date96307948.801.11.1996
[1997/19]
Priority number, dateJP1995028501101.11.1995         Original published format: JP 28501195
JP1996017626305.07.1996         Original published format: JP 17626396
JP1996029312916.10.1996         Original published format: JP 29312996
[1997/19]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0771772
Date:07.05.1997
Language:EN
[1997/19]
Type: A3 Search report 
No.:EP0771772
Date:08.10.1997
[1997/41]
Type: B1 Patent specification 
No.:EP0771772
Date:07.03.2001
Language:EN
[2001/10]
Search report(s)(Supplementary) European search report - dispatched on:EP19.08.1997
ClassificationIPC:C04B35/581, H01L21/68, B23Q3/15
[1999/31]
CPC:
C04B35/581 (EP,KR,US); C04B37/021 (EP,US); C04B2237/366 (EP,US);
C04B2237/40 (EP,US); C04B2237/402 (EP,US); C04B2237/403 (EP,US);
C04B2237/404 (EP,US); C04B2237/408 (EP,US); C04B2237/62 (EP,US);
C04B2237/704 (EP,US); C04B2237/706 (EP,US); Y10T279/23 (EP,US);
Y10T428/22 (EP,US); Y10T428/31678 (EP,US) (-)
Former IPC [1997/19]C04B35/581
Designated contracting statesDE,   FR,   GB [1997/19]
TitleGerman:Aluminiumnitrid-Sinterkörper und ihre Herstellung[1997/19]
English:Aluminium nitride sintered bodies and their manufacture[1997/19]
French:Corps frittes en nitrure d'aluminium et leur fabrication[1997/19]
Examination procedure07.04.1998Examination requested  [1998/23]
26.04.1999Despatch of a communication from the examining division (Time limit: M04)
30.08.1999Reply to a communication from the examining division
06.04.2000Despatch of communication of intention to grant (Approval: Yes)
16.08.2000Communication of intention to grant the patent
07.11.2000Fee for grant paid
07.11.2000Fee for publishing/printing paid
Opposition(s)08.12.2001No opposition filed within time limit [2002/09]
Fees paidRenewal fee
23.11.1998Renewal fee patent year 03
23.11.1999Renewal fee patent year 04
22.11.2000Renewal 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[A]US5413360  (ATARI HITOSHI [JP], et al) [A] 1-17 * claims 1-4,8,9 *;
 [A]JPH07226431  ;
 [A]US5376601  (OKAWA YOSHIHIRO [JP], et al) [A] 1-5,12-15 * claims 1-4; table 5 *;
 [A]EP0237072  (KEMPTEN ELEKTROSCHMELZ GMBH [DE]) [A] 1-5,12-15 * page 8, lines 8-12; claims 1-3; tables 3-5 *;
 JPS6385055  [ ] (ASAHI GLASS CO LTD);
 [AD]JPS6395644
 [A]  - DATABASE WPI, 1, Derwent World Patents Index, vol. 96, no. 28, Database accession no. 96-271230, XP002037205 & JPH07226431 A 19950822 (KYOCERA CORP.) [A] 1-17 * abstract *
 [A]  - T. MIMORI ET AL., CHEMICAL ABSTRACTS, (19880725), vol. 109, no. 4, Database accession no. 26718, XP002037204 [A] 1-5,12-15 * abstract *
 [AD]  - PATENT ABSTRACTS OF JAPAN, (19880907), vol. 012, no. 330, Database accession no. (E - 655), & JP63095644 A 19880426 (NIPPON TELEGR. & TELEPH. CORP. (NTT)) [AD] 6-11,16,17 * abstract *
by applicantJPH0222166
 JPH0719831
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.