Taiyo Yuden Co., Ltd.

Bridgestone Corporation

Shingo Katoh

Isao Matsuda

Fumi Hara

Takeshi Otsu

Masashi Satoh

An optical information recording medium has at least an optical reflective layer, an optical recording layer, an protective layer, and an optical transparency layer formed in that order on the main surface of a disc-shaped substrate. An area in which the protective layer is formed is made wider than an area in which the reflective layer is formed, and made narrower than an area in which the optical transparency layer is formed.

Optical information recording medium and manufacturing method thereof

An optical information recording medium has a substrate, and an optical reflection layer, an optical recording layer containing an organic dye, an interlayer, and a cover layer formed in this order on the substrate. The interlayer contains a sputtered NbO&#x2014;AlO-based composite oxide having an NbOcontent of more than 50 mol % and less than 60 mol %.

Optical information recording medium

An optical information recording medium includes a substrate having a through-hole provided at the central portion thereof and a guiding groove provided on a surface at the light-incident side; a reflective layer provided on the surface of the substrate having the guiding groove; a recording layer provided on the reflective layer and made of an organic substance containing a dye; and a light-transmissive cover layer provided on the recording layer, wherein the cover layer is made of a curable resin, and a modulus of elasticity of at least a portion of the cover layer facing the recording layer is in the range of about 34 MPa to about 96 MPa at 25&#xb0; C.

The object of the invention is to provide a crawler shoe wherein a shoe member is simply and conveniently attached, and members employed are prevented from loosening, without changing the basic structure of shoe plate main body even when not being constructed very accurately. The structure of the crawler shoe having shoe plates, to which shoe members having rubber pads are attached on ground contacting surfaces of the shoe plates, the shoe plates being connected with each other by connecting links on the shoe plates with coupling pins in an endless form is characterized by containing hook parts formed at first ends of the shoe members and configured to be engaged with first side parts the shoe plates, side plates provided on the second ends of the shoe members for retaining the second side parts of the shoe plates, and retaining members provided on the side plates for holding and fixing the second side parts of the shoe plates.

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Takasaki, Japan

Shingo Katoh