Inventor

AZUMA YOUJI

JP2 patents

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

SHIMIZUO CONSTRUCTION CO

1 patent

US5221160AJun 22, 1993

Subterranean connecting method for construction of shield tunnel and connecting apparatus therefor

SHIMIZUO CONSTRUCTION CO25 citations83

NISSIN UNYU KOGYO CO LTD

1 patent

US6156187ADec 5, 2000

Electrolytic integrated polishing method for external surface of metallic tubes and photosensitive drum substrate prepared thereby

NISSIN UNYU KOGYO CO LTD8 citations70