Inventor

UMEKITA KEN-ICHI

JP3 patents

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

WAKO PURE CHEM IND LTD

2 patents

US6534458B1Mar 18, 2003

Cleaning agent for a semi-conductor substrate

WAKO PURE CHEM IND LTD55 citations94

US6310019B1Oct 30, 2001

Cleaning agent for a semi-conductor substrate

WAKO PURE CHEM IND LTD65 citations94

WAKO PURE CHEMCIAL IND LTD

1 patent

US6716803B2Apr 6, 2004

Cleaning agent for a semi-conductor substrate

WAKO PURE CHEMCIAL IND LTD18 citations87