| (84) |
Designated Contracting States: |
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DE FR GB IT |
| (30) |
Priority: |
15.12.1999 JP 35550199
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| (43) |
Date of publication of application: |
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20.06.2001 Bulletin 2001/25 |
| (73) |
Proprietor: Hitachi, Ltd. |
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Tokyo 100-8280 (JP) |
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| (72) |
Inventors: |
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- Miyajima, Ayumu
Niihari-gun,
Ibaraki 315-0054 (JP)
- Okamoto, Yoshio
Higashiibaraki-gun,
Ibaraki 319-0102 (JP)
- Kadomukai, Yuzo
Ishioka-shi,
Ibaraki 315-0035 (JP)
- Togashi, Shigenori
Abiko-shi,
Chiba 270-1165 (JP)
- Ishikawa, Tohru
Kitaibaraki-shi,
Ibaraki 319-1702 (JP)
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| (74) |
Representative: Beetz & Partner |
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Steinsdorfstrasse 10 80538 München 80538 München (DE) |
| (56) |
References cited: :
EP-A- 0 310 819 US-A- 5 346 137
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DE-A- 4 405 921
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