申请人 |
AGENCY OF INDUSTRIAL SCIENCE AND TECHNOLOGY, TOKIO/TOKYO, JP;MITSUBISHI PENCIL K.K., TOKIO/TOKYO, JP |
发明人 |
KANEKO, HIROKO, TSUKUBA, IBARAKI, JP;YAMADA, MASAHIRO, IBARAKI, JP;SHIGEMATSU, YUKIFUMI, TSUKUBA, IBARAKI, JP;MIZUTANI, WATARU, TSUKUBA, IBARAKI, JP;NEGISHI, AKIRA, MATSUDO, CHIBA, JP;KAWAKUBO, TAKAMASA, FUJIOKA, GUNMA, JP;SUDA, YOSHIHISA, FUJIOKA, GUNMA, JP |