Nhk Spring Co., Ltd.

Shigemi Sato

Yoshiki Ono

Takeshi Suzuki

Takeshi Narita

Akihiko Chiba

Michihiko Ayada

Tatsuya Kurihara

Suguru Nomura

Masashi Sakamoto

Shigeru Kawaguchi

Morimichi Kai

Sumikazu Oki

Takaji Adachi

Masahiko Nakatani

Toyoyuki Higashino

Ryusuke Adachi

A Co&#x2014;Cr&#x2014;Mo alloy fine wire has superior biocompatibility, corrosion resistance, wear resistance, processability, and flexibility. A manufacturing method and a planar body or the like formed by processing this fine wire. This is a fine wire of diameter of 200 micrometers or less comprising 26 to 31 weight % of Cr, 8 to 16 weight % of Mo, and the remainder of Co and inevitable impurities, in which the degree of roundness (minor diameter/major diameter) of lateral cross section is 0.6 or more, and the internal structure is uniform with the concentration ratio of high Mo concentration phase to low Mo concentration phase of 1.8 or less.

Co-Cr-Mo alloy fine wire, manufacturing method therefor, and planar body, tubular body, stranded wire and cable formed of wire

A magnetic marker comprises a magnetically switchable wire and a magnetic casing that covers the magnetically switchable wire. The magnetically switchable wire is formed of a magnetic material that undergoes occurrence of sharp magnetic inversion when an alternating field of intensity higher than its coercive force is applied to it. The magnetic casing is formed of a magnetically hard or semihard magnetic material and can apply a bias magnetic field to the magnetically switchable wire to prevent magnetic inversion of the magnetically switchable wire. Heat-treated portions and high-coercivity regions, which are not heat-treated, are formed alternately in the longitudinal direction on the magnetic casing. The heat-treated portions are given magnetic properties different from magnetic properties essential to the magnetic casing by heat treatment such as annealing.

Magnetic marker and manufacturing method therefor

An optical waveguide device is provided with a core formed on a substrate and a clad layer. A low-temperature film-forming method, such as the CVD or PVD method, is used in a core forming process for forming the core and a clad forming process for forming the clad layer. The surface of the clad layer is coated with a protective film of chrome or the like in a protective film forming process that is carried out after the clad forming process. In a heating/pressurizing process that is carried out after the protective film forming process, the clad layer is heated and pressurized from its outside by the HIP (hot isostatic pressing) method. This heating/pressurizing process substantially eliminates voids in the clad layer and the like, and enhances or improves the density of a buffer layer, core, and upper clad layer and the transparency of the core layer. The protective film is removed by etching or the like in a removing process.

Hot Isostatic pressing of a planar optical waveguide

A method of manufacturing ceramic products. This method comprises the steps of mixing ceramic powder, organic materials imparting formability to the ceramic powder, and a first solvent, thereby preparing a mixture, shaping the mixture thereby forming a product of a simple shape, drying the product, immersing the dried product in a bath of a second solvent, thereby plasticizing the product, and re-shaping the plasticized product.

Method of manufacturing ceramic products, and a method of manufacturing

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Yokohama, Japan

Shigemi Sato