Inventor

KOTAKE YASUO

3 patents

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

DOWA MINING CO

2 patents

US4248312AFeb 3, 1981

Method and apparatus for upwardly cutting full cutting face of a shaft without requesting workmen's hands

DOWA MINING CO10 citations71

US4207016AJun 10, 1980

Method and apparatus for supporting the wall of an upwardly excavated shaft

DOWA MINING CO9 citations71

MITSUBISHI ELECTRIC CORP

1 patent

US9893643B1Feb 13, 2018

Semiconductor module, semiconductor device, and electric power device

MITSUBISHI ELECTRIC CORP3 citations69