Inventor · disambiguated record
Choong Han Ryu
Also filed as: RYU CHOONG HAN
3 granted patents·2 pending applications·9 citations·filing 2011–2021
60Inventor score
Technology areasG03F
Top patents by PatentIndex Score
5 records- 0177US8795931B2Reflection-type photomasks and methods of fabricating the sameSK HYNIX INC·Filed 2013·Granted Aug 5, 2014·3 cites·24 claims
- 0276US8455159B2Method for correcting critical dimension of phase shift mask and method for manufacturing the sameRYU CHOONG HAN·Filed 2011·Granted Jun 4, 2013·6 cites·18 claims
- 0366US2022121106A1Methods of fabricating phase shift photomasksSK HYNIX INC·Filed 2021·Application pending·0 cites
- 0454US2019354004A1Blank phase shift photomasks, phase shift photomasks fabricated using blank phase shift photomasks, and methods of fabricating phase shift photomasks using blank phase shift photomasksSK HYNIX INC·Filed 2019·Application pending·0 cites
- 0542US9726970B2Method of fabricating reflective photomaskSK HYNIX INC·Filed 2016·Granted Aug 8, 2017·0 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →