Yukio Shibuya

Method for drying polymer hydrogel

Optical fiber ribbon end-structure

Working equipment for roughening the side of optical fiber

Light source system with uniforming device for optical fiber type lightguide

Improved light source system with device to provide uniform light

Metal surfaces coated with aliphatic acids containing 12 carbon atoms or more to eliminate polymer build-up on reactor walls during the polymerization of water-soluble cationic polymers

Method for preventing adhesiveness of a hydrogel of a water-soluble acrylamide-type polymer

Verbessertes Lichtquellen-System mit Einrichtung zum Erzielen einer gleichmässigen Lichtverteilung. Improved light source system with means for obtaining a uniform light distribution.

Verbessertes Lichtquellen-System mit Einrichtung zum Erzielen einer gleichmässigen Lichtverteilung

Random packed optical fiber bundle for homogenizing the energy distribution in a laser beam on the specimen surface and its application to the thermal diffusivity measurements.