Smk Corporation

Masahide Sakamoto

Ryo Okamura

Hajime Takata

Ryuhei Miyabayashi

Tooru Takakura

A touch panel is provided, that can prevent, for example, the occurrence of Newton's rings. The touch panel includes: a first substrate having a first principal plane and a second principal plane on which a first transparent conductive film is formed; and a second substrate having a third principal plane on which a second transparent conductive film is formed and a fourth principal plane. The touch panel is configured such that the first substrate and the second substrate are disposed so that the first transparent conductive film and the second transparent conductive film are opposed to each other. The first substrate is warped to be convex from the second principal plane toward the first principal plane.

Touch panel having a warped substrate and method for manufacturing the touch panel

An inexpensive spread spectrum transmission system prevents the infiltration of external noise and external leakage of spread spectrum signals by separating electrical power for load devices from electrical power for communication. A plug socket for terminal connection receives a plug for terminal connection of a spread spectrum communication terminal apparatus. The plug for terminal connection is connected to the alternating current power supply line through a blocking filter which blocks electrical noise from entering the spread spectrum terminal apparatus, and prevent spread spectrum signals from passing in the reverse direction. Since the alternating current power supply line for communications carries only light loads, an inexpensive, low-capacity blocking filter is adequate as the blocking filter.

Growing community of inventors

Toyama, Japan

Masahide Sakamoto