EKC Technology K.K.
4Patents
0Active
4Granted
24Portfolio score
Filing activity: Dec 4, 2002 → Aug 14, 2003
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7250391B2 | Cleaning composition for removing resists and method of manufacturing semiconductor device | Electricity | 35 | Expired |
| US7087563B2 | Resist stripping composition and method of producing semiconductor device using the same | Electricity | 5 | Expired |
| US6827752B2 | Cerium oxide slurry, and method of manufacturing substrate | Chemistry; Metallurgy | 4 | Expired |
| US7341827B2 | Separation-material composition for photo-resist and manufacturing method of semiconductor device | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.