Kuraray Co., Ltd.

Nippon Pillar Packing Co., Ltd.

Koji Onishi

Hitoshi Maruyama

Akira Nakatsu

Hirotoshi Miyazaki

Tetsuya Katayama

To provide a microstrip antenna that can radiate electromagnetic waves in two or more different directions while suppressing an increase in manufacturing cost. The microstrip antenna is configured to include: a dielectric substratethat is adapted to be of a folded flat plate shape; two or more radiating patternsfor radiating electromagnetic waves; and a connecting patternfor mutually connecting the radiating patternsand feeding electricity from a common feeding pointto each of the radiating patterns. The radiating patternsand connecting patternare respectively adapted as microstrip lines formed on the dielectric substrate, and the dielectric substrateis folded such that the connecting patternintersects with a ridge line, and has two or more radiating surfacestoof which normal directions are mutually different.

Microstrip antenna

A size for yarn which minimizes thread break is described. The size comprises an aqueous solution of (I) a polyvinyl alcohol resin, (II) a modified starch, and a water-soluble cellulose compound (III), wherein the components are related by the following equations:

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Osaka, Japan

Koji Onishi