申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORP., TOKIO/TOKYO, JP |
发明人 |
KURIHARA, TAKASHI, MIWA, MITO-SHI IBARAKI-KEN, JP;MATSUMOTO, SHIRO, IRUMA-SHI SAITAMA-KEN, JP;KAINO, TOSHIKUNI, MITO-SHI IBARAKI-KEN, JP;KANBARA, HIROHISA, YOKOHAMA-SHI KANAGAWA-KEN, JP;KUBODERA, KENICHI, ISEHARA-SHI KANAGAWA-KEN, JP |