Osaka Gas Company Limited

Japan Science and Technology Corporation

Takenaka Corporation

Itsuro Tamura

Satoshi Fujita

Masahito Yoshizawa

Kenji Nakai

Keita Yamazaki

Kohei Kawazoe

Masao Wada

Tsutomu Takae

Yoshiyuki Kawashima

Atsushi Iida

Kazunori Kawanishi

A magnetic field distribution measurement device () provides a non-contact magnetic measurement on a subject's chest at a plurality of coordinates and forms therefrom time-series magnetic field distribution data. A first arithmetic device () in response generates image data representing a three-dimensional, intramyocardial current density distribution. A second arithmetic device () receives a plurality of tomographic image data separately obtained by a tomographic diagnosis apparatus and processes the data to generate three-dimensional, anatomical image data. A display device () receives these data and displays on an anatomical image an image representing an intramyocardial current density. Thus in a ventricle a lesioned or viable part of myocardium can be readily identified in location, size, geometry and level. Furthermore, the anatomical image may be replaced with an image representing a normal stimulation propagation circuit and serving as a template.

Liable cardiac muscle diagnosing apparatus and liable cardiac muscle analyzing method by magnetic field measurements

A magnetic field distribution measurement device () provides a non-contact magnetic field measurement on a subject's chest at a plurality of coordinates and forms therefrom time-series magnetic field distribution data. A first arithmetic device () in response generates image data representing a three-dimensional, intramyocardial current density distribution. A second arithmetic device () receives a plurality of tomographic image data separately obtained by a tomographic diagnosis apparatus and processes the data to generate three-dimensional, anatomical image data. A display device () receives these data and displays on an anatomical image an image representing an intramyocardial current density. This can facilitate identifying an anatomical, positional relationship of an abnormal, electrical reentry circuit caused in heart muscle. Furthermore, the anatomical image may be replaced with an image representing a normal stimulation propagation circuit and serving as a template.

Cardiac magnetic field diagnozer for atrial flutter and atrial fibrillation and method for identifying electric turning path of atrial flutter and atrial fibrillation

A magnetic field distribution measurement device () provides a non-contact magnetic measurement on a subject's chest at a plurality of coordinates and forms therefrom time-series magnetic field distribution data. A first arithmetic device () in response generates image data representing an intramyocardial excitation conduction rate. A second arithmetic device () receives a plurality of tomographic image data separately obtained by a tomographic diagnosis apparatus and processes the data to generate three-dimensional, anatomical image data. A display device () receives these data and displays on an anatomical image an image representing an intramyocardial excitation current. This can facilitate identifying an anatomical, positional relationship of a ventricular late potential caused in heart muscle. Furthermore, the anatomical image may be replaced with an image representing a normal stimulation conduction path and serving as a template.

Cardiac magnetic field diagnosing apparatus by late ventricular potential and method of locating intramyocardial excitement uneven propagation portion

A biological information-measuring apparatus which is situated in a shielded room and includes measuring means for measuring biological information of a subject arranged and supported between a pair of supporting pillars of a double housing type support, wherein H-cross section members are combined to form a lattice-like supporting frame, and the bottoms of the supporting pillars are anchored to the members forming the supporting frame.

Biological information-measuring apparatus

A process for producing a Josephson device is disclosed, wherein a Josephson junction is formed over a recess step by oblique deposition and a protective layer of conducting material or semiconducting material is formed on the Josephson junction. The actual thickness of the Josephson junction is controlled to be smaller due to the proximity effect.

Process for fabricating a Josephson device

In a Josephson device which can be employed as a sensor including superconductor for measuring an extremely weak magnetic field, a Josephson junction consisting of superconducting material is formed, and a covering layer consisting of ordinary conducting metal or semiconductor is formed on the Josephson junction. This enables the Josephson junction to be isolated from the oxidized atmosphere. Further, the covering layer is not to present any deterioration such as cracks even upon being subjected to a thermal hysteresis from very low temperature to ordinary temperature.

Josephson device formed over a recess step with protective layer

A control apparatus for maintaining constant the temperature and pressure of the vapor phase in a very low-temperature controlled liquefied gas container includes a pressure sensor, a temperature sensor, two electromagnetic valves, and a refrigerator. When operation of the refrigerator disturbs measurement at low temperature, the refrigerator is stopped. Gas vaporizes from a liquid phase, and gas is discharged from the container. In this manner, the temperature and pressure of the liquefied gas in the container can be maintained constant. After measurement, the liquid level in the container will be lowered by evaporation, so that the liquefied gas is supplied to the container. In this manner, the liquid level in the container can be maintained constant.

Growing community of inventors

Kawachinagano, Japan

Itsuro Tamura