Osaka, Japan
Osaka, Japan

Daihatsu Motor Co., Ltd. is the oldest Japanese car manufacturer, mostly known for its range of smaller models and off-road vehicles. The headquarters are located in Ikeda, Osaka Prefecture. Wikipedia.

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Patent
Daihatsu Motor Co. and Cataler Corporation | Date: 2015-10-16

A method for producing an exhaust gas purifying catalyst including a composite oxide represented by the following general formula (3), the method including a primary baking step of baking a coprecipitate obtained from an aqueous mixed salt solution of respective elements, a citrate complex obtained from an aqueous citric acid mixed salt solution of salts of the respective elements and citric acid, or a precipitate obtained from an alkoxide mixed solution of the respective elements at 500 to 1200 C., the respective elements constituting the exhaust gas purifying catalyst represented by the following general formula (3), including A, B and Fe but excluding Pd; a step of adding an aqueous solution of Pd salt to a primary composite oxide obtained through the primary baking step to give a precursor composition; and a secondary baking step of baking the precursor composition at 800 to 1400 C., AO.x(B_(2-y-Z)Fe_(y)Pd_(Z)O_(3-)) (3).


Patent
Cataler Corporation and Daihatsu Motor Co. | Date: 2014-05-22

Provided is a method for purifying exhaust gas discharged from an internal combustion engine of a vehicle, using an exhaust gas purifying catalyst including a composite oxide represented by the following general formula AO.x(B_(2-y)C_(y)O_(3-)), wherein A represents an element selected from monovalent elements, divalent elements and lanthanides; B represents a trivalent element; and C represents a noble metal; x represents an integer of 1; y represents an atomic ratio satisfying the following relation: 0


Patent
Daihatsu Motor Co. and Murata Manufacturing Co. | Date: 2015-12-14

A temperature detecting device (101) includes: a detecting unit (11) which detects a temperature of a heat source (1); a power generation unit (12) which includes a thermoelectric conversion element (3) and is spaced from the detecting unit (11); a first heat transfer unit (41) that transfers heat or cold of the heat source (1) to the power generation unit (12); a radiator (13) which is remote from the power generation unit (12) so as to radiate heat or cold to outside; a second heat transfer unit (42) that receives heat or cold from the power generation unit (12) and that transfers the heat or cold to the radiating unit (13); and an output unit (14) that outputs a result of the measurement made by the temperature receiving element (2). The thermoelectric conversion element (3) generates electric power by way of a temperature difference between a surface (3a) and a surface (3b) and supplies electric power to the temperature receiving element (2) and the output unit (14).


Patent
Daihatsu Motor Co. and Nagaoka University | Date: 2016-09-28

A power generation system includes: a heat source having a temperature being changed over time; a flow passage through which a heat medium heated by the heat source passes; a power generation device including a power generation element and a first electrode, the power generation element being electrically polarized by temperature change thereof depending on temperature change of the heat medium, the first electrode extracting electric power from the power generation element; a temperature detection device being disposed on an upstream side relative to the power generation device in the flow passage and detecting the temperature of the heat medium; a voltage application device that applies voltage to the power generation element; and a control device that activates the voltage application device when the temperature increase of the heat medium has been detected and deactivates the voltage application unit when the temperature decrease of the heat medium has been detected.


Patent
HORIBA Ltd. and Daihatsu Motor Co. | Date: 2016-10-26

The present invention relates to an oil mist detecting device (1) that can reduce the intensity of undesired reflected light to prevent the deterioration of detection accuracy. The oil mist detecting device (1) is one that includes a container (6, 6a, 6b) having: a containing space (7, 7a, 7b) containing a light emitting element (4) and a light receiving element (5); and an introduction space (8) into which oil mist is introduced, and detects the oil mist by in the container (6, 6a, 6b), irradiating the oil mist with light emitted from the light emitting element (4) and receiving light reflected or scattered by the oil mist by the light receiving element (5). In addition, the oil mist detecting device (1) includes a lens (9, 15, 16) that separates between the containing space (7, 7a, 7b) and the introduction space (8) and is formed with a bottom-equipped groove (18) opened on a containing space side. Further, the lens (9, 15, 16) has a first light guiding region (19a) adapted to guide the light emitted from the light emitting element (4) to the introduction space (8) as one part resulting from division by the bottom-equipped groove (18), as well as, as the other part resulting from the division by the bottom-equipped groove (18), having a second light guiding region (19b) adapted to guide the light reflected or scattered by the oil mist to the light receiving element (5).


Patent
Daihatsu Motor Co. and Nagaoka University of Technology | Date: 2016-08-17

Provided are a power generation element including a power generation material indicated by the following general formula (1), and a power generation system using the power generation element: (A_(x)B_(1-x))NbO_(3) (1), where A and B are mutually different and represent at least one element selected from rare-earth elements, alkaline-earth metals, alkaline metals, Cd, and Bi, and x represents an atomic proportion in a numerical range of 0 < x 1. The configuration provides a power generation material that enables sufficient power generation performance even in a high temperature range, a power generation element including the power generation material, and a power generation system using the power generation element.


Patent
Daihatsu Motor Co. and Nagaoka University of Technology | Date: 2014-07-09

A power-generating system includes a heat source which is able to produce temporal temperature variation; a first device which is able to produce temporal temperature variation so as to include at least partially a temperature range of -20C relative to the Curie temperature to +10C relative to the Curie temperature based on the temperature change of the heat source, and in which polarization occurs; and a second device for taking out a net generating power from the first device.


Patent
Daihatsu Motor Co. and Nagaoka University of Technology | Date: 2014-07-09

A power-generating system includes a heat source which is able to produce temporal temperature variation; a first device which is able to produce temporal temperature variation based on the temperature change of the heat source and in which polarization occurs; a second device for taking out a net generating power from the first device; a detection unit that detects the temperature of the first device; an electric field application unit that applies an electric field to the first device; and a control unit for activating the electric field application unit when the temperature detected by the detection unit is the Curie temperature of the first device or higher.


Patent
Daihatsu Motor Co. and Nagaoka University of Technology | Date: 2015-09-09

A power-generating system 1 includes a heat source 2 which is able to produce temporal temperature variation; a first device 3 which is able to produce temporal temperature variation based on the temperature change of the heat source 2 and in which polarization occurs; a second device 4 for taking out a net generating power from the first device 3; a temperature sensor 8 that detects the temperature of the first device 3; a voltage application device 9 that applies a voltage to the first device 3; and a control unit 10 for activating the voltage application device 9 on detecting an increase in temperature of the first device 3 and for stopping the voltage application device 9 on detecting a decrease in temperature of the first device 3 by the temperature sensor 8.


Patent
Daihatsu Motor Co. and Nagaoka University of Technology | Date: 2014-11-20

A power generation system includes: a heat source having a temperature being changed over time; a flow passage through which a heat medium heated by the heat source passes; a power generation device including a power generation element and a first electrode, the power generation element being electrically polarized by temperature change thereof depending on temperature change of the heat medium, the first electrode extracting electric power from the power generation element; a temperature detection device being disposed on an upstream side relative to the power generation device in the flow passage and detecting the temperature of the heat medium; a voltage application device that applies voltage to the power generation element; and a control device that activates the voltage application device when the temperature increase of the heat medium has been detected and deactivates the voltage application unit when the temperature decrease of the heat medium has been detected.

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