Inventor

IWATA KEIJI

JP21 patents

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

IWATA KEIJI

MURATA MANUFACTURING CO

Resist pattern and method for forming wiring pattern

Vertical-cavity surface-emitting laser device and vertical-cavity surface-emitting laser array device

Vertical cavity surface emitting laser array and method for manufacturing the same

Vertical cavity surface emitting laser array

Vertical cavity surface emitting laser

SCREEN HOLDINGS CO LTD

Substrate processing method and substrate processing apparatus

Substrate processing method

Substrate treatment apparatus and substrate treatment method

Substrate treatment apparatus and substrate treatment method

NIPPON STEEL CORP

AC output control apparatus

Method for analyzing electromagnetic field

Low core loss grain-oriented electrical steel plate and method of manufacturing the same

IWATA KEIJI

Wafer heating apparatus and semiconductor manufacturing apparatus

Wafer heating apparatus and semiconductor manufacturing apparatus

Method for manufacturing grain-oriented electrical steel sheet

TOYO DENSO KK

Switch device and manufacturing method of stationary contact base thereof

Switching device

Method for forming push rod for switch

DAINIPPON SCREEN MFG

Substrate processing method and substrate processing apparatus

Substrate processing method and substrate processing apparatus

Substrate treatment method and substrate treatment apparatus