申请人 |
OSAKA GAS CO. LTD., OSAKA, JP |
发明人 |
MASUDA, MASATAKA, OSAKA-SHI, OSAKA 554, JP;OKADA, OSAMU, OSAKASAYAMA-SHI, OSAKA 589, JP;TABATA, TAKESHI, TOYONAKA-SHI, OSAKA 561, JP;HIRAI, YASUHIRO, MATSUBARA-SHI, OSAKA 580, JP;FUJITA, HIROKI, OSAKA-SHI, OSAKA 554, JP |