Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Harness System Technologies Research, Ltd.

Kazuhito Murakami

Kenichi Takahashi

Eiji Kamijo

Minoru Yokota

Atsuhiko Fujii

Katsuto Tani

The claimed invention provides an ultrasonic welding method, whereupon joint portions in which a copper foil portion and a twisted-wire electric cable are placed one upon the other in each groove of a resin casing, the grooves having a through-hole portion. In the through-hole portion, the copper foil portion and the twisted-wire electric cable are placed one upon the other. Welding is performed in a state in which the piled-up portion is sandwiched between a welding tip formed at an end of a welding head and an anvil. Thus, the joint portion between the copper foil portion and the twisted-wire electric cable invade and are invaded by a portion of the resin casing softened by welding heat. The joint portion is fastened not only by welding, but also by the solidified resin.

Ultrasonic welding method

An infrared light transmission fiber comprising an optical fiber made of an infrared light transmitting material which is covered with a reinforcing layer formed by impregnating glass fibers with a thermosetting varnish and curing the same is disclosed. The optical fiber may have a primary coating of cured thermosetting resin provided on the optical fiber and/or a coating of an elastic material provided on the reinforcing layer.

Infrared light transmission fiber

An infrared light transmitting fiber is disclosed. The fiber is prepared by hot extruding an alkali metal halide, silver halide or thallium halide crystal containing an alkaline earth metal element.

Infrared light transmitting fiber

This invention relates to an infrared fiber excellent in elongation as well as tensile strength and yield strength, which comprises a mixed crystal containing 0.01 to 10% by weight of silver chloride in silver bromide or a mixed crystal containing 0.01 to 10% by weight of silver bromide in silver chloride.

Infrared fibers

An infrared fiber is obtained in which a core crystal fiber for transmitting infrared rays is inserted in a cladding crystal pipe having a smaller refractive index than the core crystal fiber and in which the interface between the core and pipe is held smooth. This infrared fiber can effectively be prepared by inserting a core crystal fiber in a cladding crystal pipe and then subjecting the inserted pipe to a drawing working through a die.

Crystalline infrared optical fiber with a small gap and a process for

An infrared light transmitting optical fiber and a process for producing the same are disclosed. The infrared light transmitting optical fiber is produced by a process comprising preparing a core crystalline fiber having a high melting point and a high refractive index, forming around the core fiber a continuous layer of cladding crystal having a low melting point and a low refractive index, and subsequently forming a protective layer on the resulting step-index fiber.

Infrared light transmitting fiber and process for producing the same

A process is disclosed for producing an infrared light transmitting optical fiber by drawing a rod of single crystal or polycrystalline metal halide into a fiber through a die; also disclosed is a process for producing an infrared light transmitting optical fiber of step-index type by forming around a single crystal or polycrystalline fiber core, an intimate cladding crystal layer having a lower refractive index than the core by working in the temperature range that does not cause recrystallization of the core or cladding during working.

Process for producing infrared light transmitting optical fiber

A process for continuous production of porous metal in a tape form is disclosed which comprises the steps of treating a non-conductive porous tape to give its skelton surface electrical conductivity and then moving the porous tape in an electrolytic bath in close contact with a moving cathode immersed in said bath to electroplate it to a predetermined thickness.

Growing community of inventors

Osaka, Japan

Kazuhito Murakami