Nippon Steel Corporation

Nsc Electron Corporation

Kengo Shimanoe

Kenji Shimokawa

Tadashi Sakon

Hitoshi Dohnomae

Masao Sakashita

Kenichi Uemura

Tetsuo Sakamoto

Toshio Mukai

Yoshihiro Mori

Susumu Ohtsuka

Shuji Munehira

A high density magneto-optical recording medium utilizing a polycrystalline garnet two-layer film. The film thickness of an under layer of the garnet polycrystal on a glass substrate is made 100 nm or less, and a crystal grain diameter of a recording layer formed thereon is made 0.1 .mu.m or less. Furthermore, the under layer is demagnetized at room temperature. With this, a bit having a regular shape can be written, thus reducing medium noise by a large margin.

Magneto-optical recording medium, disk and method of manufacturing the

A cleaning solution for achieving highly accurate cleaning of silicon semiconductors and silicon oxides. The solution which enables a great reduction in the metal contaminants and the number of fine particles adhered on the surfaces and retention of the hydrophilic property of the surfaces to prevent the surfaces from being unstable, comprising an aqueous acidic solution containing 0.005% by weight or more to less than 0.05% by weight hydrogen fluoride and 0.3% by weight or more to 20.0% by weight or less hydrogen peroxide and having a pH in the range from 1 or more to less than 5.

Solution for cleaning silicon semiconductors and silicon oxides

A method of producing a polydiacetylene thin film comprises spreading on a water surface a diacetylene compound having one or more conjugated diacetylene groups, subjecting the diacetylene compound to incomplete polymerization by irradiation with ultraviolet rays to an extent incapable of causing complete polymerization, transferring the spread film to a substrate to form a monolayer or built-up film thereon, and irradiating the transferred film with ultraviolet rays or an electron beam to complete the polymerization thereof.

Method of producing polydiacetylene thin film

Growing community of inventors

Sagamihara, Japan

Kengo Shimanoe