Inventor

HIRANO KAZUHISA

JP3 patents

⚠️ This page may combine multiple inventors who share the name “HIRANO KAZUHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SUMITOMO DUREZ CO

2 patents

US4369263AJan 18, 1983

Friction material containing steel wool as reinforcing agent

SUMITOMO DUREZ CO19 citations76

US4647631AMar 3, 1987

Modified liquid resole phenolic resinous composition for friction materials

SUMITOMO DUREZ CO10 citations71

NAKAYAMA IRON WORKS LTD

1 patent

US5172869ADec 22, 1992

Jaw crusher

NAKAYAMA IRON WORKS LTD22 citations83