Etsuko Ishii

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
On screen display
- Patent number 5,774,189
- Issue date Jun 30, 1998
- Mitsubishi Denki Kabushiki Kaisha
- Etsuko Ishii
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS