Abstract: A method of manufacturing an R-T-B based sintered magnet comprises heating a composition to give an alloy powder, cleaning the alloy powder using a cleaning solution, molding the cleaned alloy powder to give a green compact, and sintering the green compact to give a sintered body. The composition comprises a rare-earth metal element, a transition metal element, boron, and a metal halide. The metal halide comprises at least one selected from the group consisting of an alkali metal halide, an alkaline earth metal halide, and a halide of the rare-earth metal element. The heating is performed at a heating temperature that is not lower than a melting point of the metal halide. The cleaning solution comprises an aprotic solvent and is capable of dissolving the metal halide.

Abstract: An imaging device includes: an imaging section that has a pixel region where a plurality of pixels is arrayed, a readout unit control section that controls readout units each set as a part of the pixel region, a readout control section that controls readout of pixel signals from the pixels included in the pixel region for each of the readout units set by the readout unit control section, a recognition section that has a machine learning model trained on the basis of leaning data, and a determination basis calculation section that calculates a determination basis of a recognition process performed by the recognition section. The recognition section performs the recognition process for each of the readout units. The determination basis calculation section calculates a determination basis for each of the readout units.

Abstract: Information processing is implemented which analyzes the cause of the result of recognition using a machine learning model. An information processing apparatus includes: a recognition processing section configured to perform object recognition processing on sensor information from a sensor section by use of a trained machine learning model; a causal analysis section configured to analyze the cause of a result of recognition by the recognition processing section on the basis of the sensor information from the sensor section and the result of recognition by the reception processing section; and a control section configured to control an output of the sensor section. The sensor section is an image sensor. The causal analysis section determines the cause of a drop in characteristic of recognition by the recognition processing section on the basis of low-resolution high-bit-length image data for causal analysis.

Abstract: Where a highly accurate image analysis is required, for example, only RAW images selected according to specified conditions are selected and transmitted to a server. There are provided an imaging unit that is mounted on a movable device, an image signal processor that generates a color image by signal processing of the RAW image which is an output of an imaging element of the imaging unit, an image analysis unit that executes analysis processing of the color image, a transmission necessity determination unit that determines transmission necessity of the RAW image to the server, and a transmission unit that transmits the RAW image to the external server according to a determination result. The transmission necessity determination unit decides the transmission necessity of the RAW image on the basis of a transmission timing control at constant intervals, imaging and signal processing parameters, an image analysis result, device information, or the like.

Abstract: An object of the present invention is to provide a Mn-based alloy exhibiting metamagnetism over a wide temperature range. A Mn-based alloy according to the present invention is a MnAl alloy having metamagnetism. The metamagnetism refers to a property in which magnetism undergoes transition from paramagnetism or antiferromagnetism to ferromagnetism by a magnetic field. In the MnAl alloy, an antiferromagnetic state is adequately stable, so that by imparting AFM-FM transition type metamagnetism (the type of metamagnetism undergoing transition from antiferromagnetism to ferromagnetism), it is possible to obtain metamagnetism over a wide temperature range, particularly, over a temperature range of ?100° C. to 200° C.

Abstract: One embodiment of the present invention includes single-crystal particles of a TbCu7 type samarium-iron-nitrogen based alloy in an anisotropic magnet powder.

Abstract: A MnAl alloy according to the present invention exhibits metamagnetism and has crystal grains containing a ?-MnAl phase and crystal grains containing a ?2-MnAl phase and a ?-MnAl phase. When the ratio of the ?-MnAl phase is A, 75%?A?99% is preferably satisfied, and when the ratios of the ?2-MnAl phase and ?-MnAl phase are B and C, respectively, B<C is preferably satisfied. Thus, it is possible to obtain metamagnetism over a wide temperature range, particularly, over a temperature range of ?100° C. to 200° C. and to enhance saturation magnetization.

Abstract: An object of the present invention is to provide a Mn-based alloy exhibiting metamagnetism over a wide temperature range. A MnAl alloy according to the present invention exhibits metamagnetism and has crystal grains containing a ?-MnAl phase and crystal grains containing a ?2-MnAl phase. Assuming that the area of the crystal grains containing the ?-MnAl phase in a predetermined cross section is B, and the area of the crystal grains containing the ?2-MnAl phase therein is A, the value of B/A is 0.2 or more and 21.0 or less. When the ratio of the areas between the crystal grains containing the ?-MnAl phase and those containing the ?2-MnAl phase is controlled within the above range, metamagnetism is imparted to the MnAl alloy and, thus, it is possible to obtain metamagnetism over a wide temperature range, particularly, over a temperature range of ?100° C. to 200° C.

Abstract: A MnAl alloy according to the present invention exhibits metamagnetism and has crystal grains containing a ?-MnAl phase and crystal grains containing a ?2-MnAl phase and a ?-MnAl phase. When the ratio of the ?-MnAl phase is A, 75%?A?99% is preferably satisfied, and when the ratios of the ?2-MnAl phase and ?-MnAl phase are B and C, respectively, B<C is preferably satisfied. Thus, it is possible to obtain metamagnetism over a wide temperature range, particularly, over a temperature range of ?100° C. to 200° C. and to enhance saturation magnetization.

Abstract: An object of the present invention is to provide a Mn-based alloy exhibiting metamagnetism over a wide temperature range. A MnAl alloy according to the present invention exhibits metamagnetism and has crystal grains containing a ?-MnAl phase and crystal grains containing a ?2-MnAl phase. Assuming that the area of the crystal grains containing the ?-MnAl phase in a predetermined cross section is B, and the area of the crystal grains containing the ?2-MnAl phase therein is A, the value of B/A is 0.2 or more and 21.0 or less. When the ratio of the areas between the crystal grains containing the ?-MnAl phase and those containing the ?2-MnAl phase is controlled within the above range, metamagnetism is imparted to the MnAl alloy and, thus, it is possible to obtain metamagnetism over a wide temperature range, particularly, over a temperature range of ?100° C. to 200° C.

Abstract: An object of the present invention is to reduce a variation in the component of a MnAl alloy deposited by a molten salt electrolysis method to thereby obtain high magnetic characteristics. In a MnAl alloy manufacturing method that electrolyzes molten salt containing a Mn compound and an Al compound to deposit a MnAl alloy, the MnAl alloy is additionally charged into the molten salt during electrolysis. According to the present invention, the concentration of the Mn compound is maintained by additional charging of the Mn compound, so that it is possible to reduce a variation in the composition of the MnAl alloy to be deposited to thereby maintain stable production conditions.

Abstract: An object of the present invention is to provide a Mn-based alloy exhibiting metamagnetism over a wide temperature range. A Mn-based alloy according to the present invention is a MnAl alloy having metamagnetism. The metamagnetism refers to a property in which magnetism undergoes transition from paramagnetism or antiferromagnetism to ferromagnetism by a magnetic field. In the MnAl alloy, an antiferromagnetic state is adequately stable, so that by imparting AFM-FM transition type metamagnetism (the type of metamagnetism undergoing transition from antiferromagnetism to ferromagnetism), it is possible to obtain metamagnetism over a wide temperature range, particularly, over a temperature range of ?100° C. to 200° C.