Inventor
HASHIMOTO MITSUHARU
JP5 patents
⚠️ This page may combine multiple inventors who share the name “HASHIMOTO MITSUHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKISUI CHEMICAL CO LTD
4 patentsUS4883253ANov 28, 1989
Ball valve and methods of fabrication
SEIKISUI CHEMICAL CO LTD30 citations91
US4960262AOct 2, 1990
Ball valve and methods of fabrication
SEIKISUI CHEMICAL CO LTD13 citations72
US4869450ASep 26, 1989
Ball valve
SEIKISUI CHEMICAL CO LTD12 citations72
US4813649AMar 21, 1989
Ball valve
SEIKISUI CHEMICAL CO LTD15 citations72