Yuji Kakinuma

Method of producing an optical recording card having a hologram contained therein

Optical recording card having hologram contained therein and method of producing the same

Optical recording card and method of reading the same

Optical recording medium, method of producing the same and method of producing the optical recording card

METHOD OF PRODUCING MASKS FOR ROM TYPE OPTICAL RECORDING CARDS AND METHOD OF INSPECTING MASKS

OPTICAL RECORDING CARD WITH HOLOGRAM AND ITS PRODUCTION

Optical card of closed type

Optische registrierkarte mit einem hologramm und verfahren zu deren herstellung.

Sealed-type optical card

Optische Karte vom versiegelten Typ Optical card from the sealed type