Sumitomo Special Metals Co., Ltd.

Nippon Tungsten Co., Ltd.

Otsuka Pharmaceutical Company, Limited

Neomax Co., Ltd.

Shinji Tsujimoto

Michito Miyahara

Toyoshige Sasaki

Osamu Nakano

Shigeki Mohri

Shin Mishima

Takayuki Morikawa

Shigeru Kawahara

Toshiaki Wada

Taisuke Hirooka

Shigeo Shinohara

Fumiki Harano

Hironobu Tsubota

Isamu Saeki

Isamu c/o Tondabayashi Factory Ands Corporation Saeki

Shigeo c/o Otsuka Pharmaceutical Co Ltd Shinohara

Fumiki c/o Otsuka Pharamceutical Co Ltd Harano

The present invention aims to provide solid compositions comprising an oil-in-water emulsion that have sufficient hardness and good feel when used, and can sufficiently exhibit the physiological functions of an electrolyte. A solid composition is obtained by preparing an oil-in-water emulsion by combining a solid oil (A), a liquid oil (B), a surfactant (C), a polyhydric alcohol (D), an electrolyte (E), and water (F).

Solid oil-in-water emulsion

A substrate for a thin-film magnetic head includes a ceramic base and an undercoat film of amorphous SiC, which is supported on the ceramic base.

Substrate for thin-film magnetic head and method of manufacturing the substrate

A marking method for a sintered product of the invention includes forming a concave portion on the sintered product by irradiating the sintered product with laser light thereby to write identification information on the sintered product. The depth of the concave portion is adjusted in a range between 0.1 &mgr;m and 5 &mgr;m, inclusive.

Methods for marking a sintered product and for fabricating magnetic head substrate

Substrate materials for magnetic heads consisting of 24-75 mol % of .alpha.-Al.sub.2 O.sub.3 and the remaining 76-25 mol % of TiC.sub.x O.sub.y N.sub.z containing a small amount of additives, that has a NaCl-type structure which retain known characteristics required on such materials and have controlled sizes of crystallites of Al.sub.2 O.sub.3 and TiC.sub.x O.sub.y N.sub.z, uniformly dispersed TiC.sub.x O.sub.y N.sub.z crystallites and, if any, additive elements, in which internal stress is relieved. The materials are intended for eliminating problems in IBE to form steps and thus for fabricating high-precision thin-film heads for high-density recording.

Substrate materials for magnetic head

Substrate materials for magnetic heads consisting of 24-75 mol % of .alpha.-Al.sub.2 O.sub.3 and the remaining 76-25 mol % of TiC.sub.X O.sub.Y N.sub.Z, or TiC.sub.X O.sub.Y N.sub.Z containing a small amount of additives, that has a NaCl-type structure which retain known characteristics required on such materials and have controlled sizes of crystallites of Al.sub.2 O.sub.3 and TiC.sub.X O.sub.Y N.sub.Z, uniformly dispersed TiC.sub.X O.sub.Y N.sub.Z crystallites and, if any, additive elements, in which internal stress is relieved. The materials are intended for eliminating problems in machining to form steps and thus for fabricating high-precision thin-film heads for high-density recording.

Substrate materials for magnetic heads with low flying height

Growing community of inventors

Osaka, Japan

Shinji Tsujimoto