Inventor

YOKOSE KEIJI

JP6 patents

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

DOWA MINING CO

4 patents

US5868871AFeb 9, 1999

Method and apparatus for carburizing, quenching and tempering

DOWA MINING CO69 citations93

US7575643B2Aug 18, 2009

Carburization treatment method

DOWA MINING CO7 citations71

US7024916B2Apr 11, 2006

Vacuum heat treatment furnace and method of and apparatus for measuring carbon concentration in atmosphere having reduced pressure.

DOWA MINING CO8 citations71

US6709629B2Mar 23, 2004

Vacuum heat treatment furnace

DOWA MINING CO2 citations60

DOWA THERMOTECH CO LTD

1 patent

US7276204B2Oct 2, 2007

Carburization treatment method and carburization treatment apparatus

DOWA THERMOTECH CO LTD12 citations81

NISSAN MOTOR

1 patent

US6733600B2May 11, 2004

Nitrided maraging steel and method of manufacture thereof

NISSAN MOTOR6 citations68