申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORP., TOKIO/TOKYO, JP |
发明人 |
TANAKA, AKINOBU, KANAGAWA, JP;BAN, HIROSHI, ATSUGI-SHI, KANAGAWA, JP;NAKAMURA, JIRO, ISEHARA-SHI, KANAGAWA, JP;KIMURA, TAKAO, MITO-SHI, IBARAKI, JP;KAWAI, YOSHIO, ISEHARA-SHI, KANAGAWA, JP |