Mitsubishi Rayon Company, Limited

Nitto Chemical Industry Co., Ltd.

Diafloc Co., Ltd.

Yukio Shibuya

Kiyoshi Ichimura

Iwao Ohshima

Yoshikazu Fujinaga

Shuichiro Tokuda

Noriyuki Furukawa

Takashi Fujigaki

Shigeru Iuchi

Akihisa Furuno

Naoyuki Suzuki

Masaki Fuse

Yoji Wada

Hisao Otani

An optical system having a light source, a uniforming device and an optical fiber type lightguide, wherein the uniforming device comprises a first optical transmission portion connected to the lightguide and a second optical transmission portion connected to the first optical transmission portion including a plurality of optical fibers stretching across the inside thereof which are arranged in such a manner that a light-receiving end of each of the optical fibers is placed at a randomly assigned position on a light-receiving end of the second optical transmission portion and on the other hand a light-emitting end of each of the optical fibers is placed at a randomly assigned position on a light-emitting end of the second optical transmission portion, thereby uniforming the distribution of the quantity of light emitted therefrom.

Light source system with uniforming device for optical fiber type

The invention provides an end structure for at least one optical fiber ribbon wherein the same-side ends of the optical fiber ribbons are bundled together and tightly fitted in a metallic sleeve member so that coating layers of the optical fiber ribbons may be on the inner surface of the metallic sleeve member.

Optical fiber ribbon end-structure

The invention provides a working equipment for roughening the side of optical fiber having a hot stamper, a sheet having rough surface to be transferred, a cushion, and a cushion-mounted plate having a portion formed in stepwise or continuously curved or sloped form.

Working equipment for roughening the side of optical fiber

A method for producing a water-soluble cationic polymer by polymerizing, in the presence of water, a high concentration of (a) at least one vinyl monomer represented by the following general formula (I)

Metal surfaces coated with aliphatic acids containing 12 carbon atoms or

A method for preventing the surface of a hydrogel of a water-soluble acrylamide-type polymer from being tacky, which comprises coating the surface of the hydrogel with at least one of a higher fatty acid or an alkali metal salt thereof.

Method for preventing adhesiveness of a hydrogel of a water-soluble

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Tokyo, Japan

Yukio Shibuya