Matsushita Electric Industrial Co., Ltd.

Tetsuo Yoshikane

Ichiro Kawamura

Akira Kagata

Noboru Okuno

Hiromi Hiura

Yoshitaka Fujioka

Recording disc playback apparatus

An information generating stylus to regenerate an information signal on a stylus base on which an electrode is applied as a variance of electrostatic capacity in conjunction with a running disc recording medium in which the information signal is recorded as a variance in a geometrical shape and a manufacturing method thereof, which comprises forming a prism with a part of the side on which said electrode is provided working as one side therefor on a tip of the conical or pyramidal stylus base with the electrode formed on one side, forming a sliding face with the disc recording medium on a tip of the prism.

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Katano, Japan

Tetsuo Yoshikane