Inventor
HAYASHIDA ICHIRO
JP15 patents
⚠️ This page may combine multiple inventors who share the name “HAYASHIDA ICHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WAKO PURE CHEM IND LTD
11 patentsUS6514921B1Feb 4, 2003
Cleaning agent
WAKO PURE CHEM IND LTD77 citations97
US6143705ANov 7, 2000
Cleaning agent
WAKO PURE CHEM IND LTD75 citations96
US5290361AMar 1, 1994
Surface treating cleaning method
WAKO PURE CHEM IND LTD273 citations96
US5580846ADec 3, 1996
Surface treating agents and treating process for semiconductors
WAKO PURE CHEM IND LTD53 citations95
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
US6410494B2Jun 25, 2002
Cleaning agent
WAKO PURE CHEM IND LTD42 citations92
US5840127ANov 24, 1998
Surface treating agents and treating process for semiconductors
WAKO PURE CHEM IND LTD25 citations92
US7375066B2May 20, 2008
Semiconductor wafer cleaning agent and cleaning method
WAKO PURE CHEM IND LTD25 citations91
US7700532B2Apr 20, 2010
Cleaning composition and method of cleaning therewith
WAKO PURE CHEM IND LTD2 citations61
US8871653B2Oct 28, 2014
Etching agent, etching method and liquid for preparing etching agent
WAKO PURE CHEM IND LTD0 citations50