Wayne Y. Yamamoto

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Aurora, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Interactive television security through transaction time stamping
- Patent number 5,764,275
- Issue date Jun 9, 1998
- Thomson multimedia S.A.
- John P. Lappington
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Transaction based interactive television system
- Patent number 5,734,413
- Issue date Mar 31, 1998
- Thomson Multimedia S.A.
- John P. Lappington
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Transaction based interactive television system
- Patent number 5,638,113
- Issue date Jun 10, 1997
- Thomson, Multimedia, S.A.
- John P. Lappington
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Interactive television security through transaction time stamping
- Patent number 5,519,433
- Issue date May 21, 1996
- Zing Systems, L.P.
- John P. Lappington
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS