Inventor

UMEZAWA TSUKU

JP3 patents

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

NICHIMEN CO LTD

2 patents

US5365147ANov 15, 1994

Plasma stabilizing apparatus employing feedback controls

NICHIMEN CO LTD18 citations69

US5359282AOct 25, 1994

Plasma diagnosing apparatus

NICHIMEN CO LTD13 citations67

NIHON KOSHUHA CO LTD

1 patent

US5448173ASep 5, 1995

Triple-probe plasma measuring apparatus for correcting space potential errors

NIHON KOSHUHA CO LTD16 citations71