Inventor

HIRAGA TOSHITAKA

JP5 patents

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

EKC TECHNOLOGY K K

2 patents

US7250391B2Jul 31, 2007

Cleaning composition for removing resists and method of manufacturing semiconductor device

EKC TECHNOLOGY K K56 citations93

US7087563B2Aug 8, 2006

Resist stripping composition and method of producing semiconductor device using the same

EKC TECHNOLOGY K K9 citations69

EKC TECHNOLOGY INC

2 patents

US7399365B2Jul 15, 2008

Aqueous fluoride compositions for cleaning semiconductor devices

EKC TECHNOLOGY INC35 citations92

US7718590B2May 18, 2010

Method to remove resist, etch residue, and copper oxide from substrates having copper and low-k dielectric material

EKC TECHNOLOGY INC19 citations82

SONY CORP

1 patent

US7341827B2Mar 11, 2008

Separation-material composition for photo-resist and manufacturing method of semiconductor device

SONY CORP0 citations39