| 申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD., OSAKA, JP;ASAHI DIAMOND INDUSTRIAL CO., LTD., TOKIO/TOKYO, JP;NISSEI INDUSTRY CORP., TOYONAKA, TOKIO/TOKYO, JP |
发明人 |
NISHIGUCHI, MASANORI YOKOHAMA WORKS;SEKIGUCHI, TAKESHI YOKOHAMA WORKS, YOKOHAMA-SHI KANAGAWA, JP;MIYOSHI, IKKEIE ASAHI DIAMOND IND. CO. LTD., KAWASAKI-SHI KANAGAWA, JP;NISHIO, KIYOSHI, TOYONAKA-SHI OSAKA, JP |
