| (84) |
Designated Contracting States: |
|
DE FR GB |
| (30) |
Priority: |
26.03.1991 JP 8457591 28.05.1991 JP 15093291 01.10.1991 JP 25367891 09.10.1991 JP 26230091 13.02.1992 JP 5872792
|
| (43) |
Date of publication of application: |
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01.08.2001 Bulletin 2001/31 |
| (62) |
Application number of the earlier application in accordance with Art. 76 EPC: |
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92302608.2 / 0506391 |
| (73) |
Proprietor: NGK INSULATORS, LTD. |
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Nagoya-City, Aichi Pref. 467-8530 (JP) |
|
| (72) |
Inventors: |
|
- Ushikoshi, Ryusuke
c/o NGK Insulators, Ltd.
Nagoya City, Aichi Pref. (JP)
- Nobori, Kazuhiro
Kisogawa-cho,
Haguri-Gun,
Aichi Pref. (JP)
- Niori, Yusuke
c/0 NGK Insulators, Ltd.
Nagoya City, Aichi Pref. (JP)
- Umemoto, Koichi
Toyota City,
Aichi Pref. (JP)
- Kobayashi, Hiromichi
c/o NGK Insulators, Ltd
Nagoya City, Aichi Pref. (JP)
- Honda, Toshihiko
NGK Insulators, Ltd
Nagoya City, Aichi Pref. (JP)
- Kawabata, Kenji
c/o NGK Insulators, Ltd
Nagoya City, Aichi Pref. (JP)
|
| (74) |
Representative: Paget, Hugh Charles Edward et al |
|
Mewburn Ellis LLP
York House
23 Kingsway London WC2B 6HP London WC2B 6HP (GB) |
| (56) |
References cited: :
EP-A- 0 296 768
|
EP-A- 0 460 701
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- PATENT ABSTRACTS OF JAPAN vol. 012, no. 398 (C-538), 21 October 1988 (1988-10-21)
& JP 63 140085 A (KYOCERA CORP), 11 June 1988 (1988-06-11)
- PATENT ABSTRACTS OF JAPAN vol. 016, no. 273 (C-0953), 18 June 1992 (1992-06-18) &
JP 04 066657 A (MITSUBISHI ALUM CO LTD;OTHERS: 01), 3 March 1992 (1992-03-03)
- PATENT ABSTRACTS OF JAPAN vol. 009, no. 108 (C-280), 11 May 1985 (1985-05-11) & JP
59 232994 A (TOSHIBA KIKAI KK), 27 December 1984 (1984-12-27)
- PATENT ABSTRACTS OF JAPAN vol. 013, no. 106 (E-726), 14 March 1989 (1989-03-14) &
JP 63 278322 A (FUJITSU LTD), 16 November 1988 (1988-11-16)
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