申请人 |
NGK INSULATORS, LTD., NAGOYA, AICHI, JP;NGK ADREC LTD., NAGOYA, AICHI, JP;SANGI CO., LTD., TOKYO/TOKIO, JP |
发明人 |
SHIRAKAWA, HIROSHI, GIFU-PREFECTURE, 509-01, JP;YAMAKAWA, OSAMU, KANI-CITY, GIFU-PREFECTURE, 509-02, JP;NIHONMATSU, HIROAKI, KANI-GUN, GIFU-PREFECTURE, 505-01, JP;ATSUMI, KIMINORI, SAITAMA-PREFECTURE 349-11, JP |