Agency of Industrial Science and Technology Ministry of International

Agency of Industrial Science and Technology

Ministry of International Trade & Industry

Keiji Kaneko

Hiroko Kaneko

Hideo Ihara

Akira Negishi

Masayuki Hirabayashi

Shoji Ishibashi

A method for producing a compound oxide superconducting thin film, comprising forming an oxide thin film on the surface of a substrate of a first metal element having a redox charge by oxidizing the metal, using the oxide thin film thus formed as an electrode for oxidation reaction of a second metal element contained in an electrolyte solution or molten salt to incorporate the second metal element in the oxide thin film, using the compound oxide thin film thus formed as an electrode to obtain a cyclic voltammogram, and electrochemically processing the compound oxide thin film at an electrolytic potential that is determined based on the cyclic voltammogram.

Method of producing compound oxide superconducting thin film

A method for the production of a standard oxide sample for X-ray fluorescence analysis of an impurity element contained in an inorganic compound. The standard oxide sample is produced by accurately weighing a high-purity compound of the type of the main-component element of the inorganic compound, dissolving the weighed compound in an acid, adding an element of the type of the impurity element to be subjected to determination in a prescribed amount to the acid solution, evaporating the resultant solution to dryness, and heating the dry residue of evaporation.

Method for production of standard oxide sample for X-ray fluorescence

A method for producing an oxide superconductor comprises obtaining a cyclic voltammogram using an oxide material containing an element having a redox charge as an electrode, determining an electrolytic potential for the oxide material on the basis of the voltammogram, and electrolyzing the oxide material at the determined potential.

Method of producing oxide superconductor

Growing community of inventors

Tsukuba, Japan

Keiji Kaneko