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Tetsuya Nakayama
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Niwa, JP
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last 30 patents
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Patent Grant
Lightning arrestor
Patent number
5,172,297
Issue date
Dec 15, 1992
NGK Insulators, Ltd.
Takashi Imakoma
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Lightning-conducting insulators
Patent number
4,761,707
Issue date
Aug 2, 1988
The Tokyo Electric Co., Inc.
Keiji Wakamatsu
H01 - BASIC ELECTRIC ELEMENTS