Toppan Printing Co., Ltd.

Fuminobu Noguchi

Takahiro Harada

Satoshi Kitamura

Mitsuru Kano

Nagahisa Matsudaira

Kazuhisa Hoshino

Tsutomu Shikakubo

Haruo Uyama

A hologram forming layer, transparent evaporated layer, colored layer, adhesion anchor layer, and adhesive layer are sequentially laminated on the under surface of a base member. The laminated body is used as a seal by the presence of the adhesive layer. It is preferable for the base member to have adequate rigidity (flexibility, tensile strength) and surface flatness. The hologram forming layer has a relief type hologram image. The transparent evaporated layer is a multi-layered ceramic layer constructed by alternately laminating high-refractive index layers and low-refractive index layers and the thickness thereof is preferably set to 1 .mu.m or less. In the transparent evaporated layer, the color of visible light in predetermined wavelength range is changed according to the viewing angle when it is transmitted therethrough or reflected therefrom.

Transparent hologram seal

Growing community of inventors

Kumamoto, Japan

Fuminobu Noguchi