Sony Corporation

Hikaru Terui

Tetsuo Endo

Tomoe Ozaki

Junichi Tachibana

Noboru Sekiguchi

Hiroyuki Kobayashi

Minoru Yamaga

Eiji Nakashio

Masaru Terakawa

Katsunori Maeshima

Yoichi Kanemaki

Takashi Aizawa

Kazuya Hashimoto

Tomoe Sato

Nobuyuki Sasaki

Teruo Sai

Yuta Akimoto

A magnetic recording medium according to a first technique includes an elongated substrate having a first surface and a second surface, a first reinforcing layer disposed on the first surface, a second reinforcing layer disposed on the second surface, an adhesion suppressing layer disposed on the second reinforcing layer, and a recording layer disposed on the first reinforcing layer or the adhesion suppressing layer.

Magnetic recording medium, laminate, and flexible device

A magnetic recording medium has a recording surface having an average surface roughness SRa of 3.0 nm or less, the number of projections having a height of 7.5 nm or more included in a unit region (where the unit region is a square region with each side having a length of 30 &#x3bc;m) of the recording surface is 256 or more, and the number of projections having a height of 15 nm or more included in the unit region of the recording surface is 0 or more and 104 or less.

Magnetic recording medium with controlled surface characteristics

A magnetic recording medium includes a long-shaped base substrate having flexibility, a soft magnetic layer, and a magnetic recording layer. A squareness ratio in a longitudinal direction of the base substrate is equal to or less than a squareness ratio in a short-side direction of the base substrate. The squareness ratio in the longitudinal direction of the base substrate is 30% or less.

Magnetic recording medium

A magnetic recording medium includes a base material which has flexibility, a lower coating layer, and a recording layer, in which, in X-ray diffraction peaks, a value of &#x394;&#x3b8;where a diffraction peak of magnetic atoms which are included in the recording layer is measured by a locking curve method is 5&#xb0; or more to less than 10&#xb0;.

Magnetic recording medium having a recording layer with a diffraction peak of magnetic atoms

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Miyagi, Japan

Hikaru Terui