Japan Science and Technology Agency

Tohoku University

Ifg Corporation

Hiroyasu Kanetaka

Kenichi Arai

Shinichi Izumi

Shin Yabukami

Toshiyuki Takagi

Ryoichi Nagatomi

Hitoshi Mori

Toshihiko Abe

Kenji Yashima

Kazumi Mori

Guoqiang Xie

Hajime Takada

It is an object of the present invention to provide a production method of a calcium-based metallic glass alloy molded body for medical use which has a biodegradable property, has a mechanical strength equal to or higher than that of metal materials, and enables complex molding and a wide range of applications. The calcium-based metallic glass alloy molded body for medical use is produced by mixing a metal powder including a calcium powder, alloying the mixed metal powder, and sintering the alloyed mixed metal powder.

Calcium-based metallic glass alloy molded body for medical use and production method thereof

A smaller-sized, more lightweight, and power-saving successive magnetic pulse device is provided. A discharging circuit section K is configured by connecting, in series in a loop, a magnetic therapy pulse coilconfigured to generate an eddy current in a target part, a charging/discharging capacitor, and a switching semiconductor elementconfigured to supply a discharge current from the charging/discharging capacitorto the pulse coil. A step-up transformerincludes a primary-side coilconnected to an AC power supplyand a secondary-side coilconnected to input terminalsof a full-wave rectifying circuit. A control unitis connected to a switching semiconductor elementand controls conduction timing of the switching semiconductor element. The full-wave rectifying circuithas output terminalsconnected to both terminals Pand Pof the charging/discharging capacitor, respectively. An inductoris connected between the output terminalof the full-wave rectifying circuitand the terminal Pof the charging/discharging capacitor

Medical successive magnetic pulse generation device

An instrument () for measuring three-dimensional motion in a living body comprises a plurality of magnetism generators () fixed to one of at least two objects () moving relatively in the living body, a plurality of magnetic field sensors () fixed to the other object in order to perform noncontact detection of the magnetic field of each magnetism generator (), and a signal processing means () for calculating relative position and direction between each magnetism generator () and each magnetic field sensor () according to a magnetic field detected by each magnetic field sensor (). The number of magnetism generators () and magnetic field sensors () is at least five, respectively.

Instrument and method for measuring three-dimensional motion

Growing community of inventors

Sendai, Japan

Hiroyasu Kanetaka