申请人 |
YOSHIDA KOGYO K.K., TOKIO/TOKYO, JP;MASUMOTO, TSUYOSHI, SENDAI, MIYAGI, JP;TEIKOKU PISTON RING CO., LTD., TOKIO/TOKYO, JP |
发明人 |
MASUMOTO, TSUYOSHI, SENDAI-SHI, MIYAGI-KEN, JP;KITA, KAZUHIKO, TOYAMA-KEN 937, JP;INOUE, AKIHISA, SENDAI-SHI, MIYAGI-KEN, JP;YAMAGUCHI, HITOSHI, OKAYA-SHI, NAGANO 394, JP |