Abstract: The antenna device A1 includes an antenna 1 configured to transmit and/or receive radio waves, and a dielectric elastomer drive element 2 including a dielectric elastomer layer 21 and a pair of electrode layers 22 sandwiching the dielectric elastomer layer 21. The dielectric elastomer drive element is capable of changing an antenna characteristic of the antenna 1. With such a configuration, the antenna device can be made smaller and lighter while improving its antenna characteristics.

Abstract: A high frequency filter A1 has frequency characteristics such that the amount of attenuation for an input electrical signal is smaller in a first frequency band f1 than in a second frequency band f2. The high frequency filter A1 is provided with a dielectric elastomer transducer 1 that includes a dielectric elastomer layer 13 and a pair of electrode layers 14 sandwiching the dielectric elastomer layer 13. The frequency characteristics are variable by the dielectric elastomer transducer 1. This configuration provides a high frequency filter having frequency characteristics that are variable and suitable for a lightweight and compact configuration.

Abstract: A high frequency filter A1 has frequency characteristics such that the amount of attenuation for an input electrical signal is smaller in a first frequency band f1 than in a second frequency band f2. The high frequency filter A1 is provided with a dielectric elastomer transducer 1 that includes a dielectric elastomer layer 13 and a pair of electrode layers 14 sandwiching the dielectric elastomer layer 13. The frequency characteristics are variable by the dielectric elastomer transducer 1. This configuration provides a high frequency filter having frequency characteristics that are variable and suitable for a lightweight and compact configuration.

Abstract: The antenna device A1 includes an antenna 1 configured to transmit and/or receive radio waves, and a dielectric elastomer drive element 2 including a dielectric elastomer layer 21 and a pair of electrode layers 22 sandwiching the dielectric elastomer layer 21. The dielectric elastomer drive element is capable of changing an antenna characteristic of the antenna 1. With such a configuration, the antenna device can be made smaller and lighter while improving its antenna characteristics.

Abstract: A (A) polyamic acid solution which can be (i) used to form a film that does not peel off even in a case where the film has a large thickness, and (ii) stably stored at a room temperature, and (B) a laminate that can be suitably used for production of a flexible device. An alkoxysilane-modified polyamic acid solution that can be obtained by reacting (a) an alkoxysilane compound containing the amino group and (b) a polyamic acid solution, and has a molar ratio of 0.980 or more and 0.9995 or less, which molar ratio is obtained by dividing a total number of moles of an aromatic tetracarboxylic dianhydride by a total number of moles of an aromatic diamine.

Abstract: A (A) polyamic acid solution which can be (i) used to form a film that does not peel off even in a case where the film has a large thickness, and (ii) stably stored at a room temperature, and (B) a laminate that can be suitably used for production of a flexible device. An alkoxysilane-modified polyamic acid solution that can be obtained by reacting (a) an alkoxysilane compound containing the amino group and (b) a polyamic acid solution, and has a molar ratio of 0.980 or more and 0.9995 or less, which molar ratio is obtained by dividing a total number of moles of an aromatic tetracarboxylic dianhydride by a total number of moles of an aromatic diamine.

Abstract: The present invention provides (A) a polyamic acid solution which can be (i) used to form a film that does not peel off even in a case where the film has a large thickness, and (ii) stably stored at a room temperature, and (B) a laminate that can be suitably used for production of a flexible device. An alkoxysilane-modified polyamic acid solution of the present invention can be obtained by reacting (a) an alkoxysilane compound containing the amino group and (b) a polyamic acid solution, and has a molar ratio of 0.980 or more and 0.9995 or less, which molar ratio is obtained by dividing a total number of moles of an aromatic tetracarboxylic dianhydride by a total number of moles of an aromatic diamine.

Abstract: Provided are a polyamic acid solution that can be formed into a film without peeling even when the film is thick and can be stably stored at room temperature, and a laminate that can be suitably used for production of a flexible device. In the alkoxysilane-modified polyamic acid solution according to the present invention, an additive amount of an alkoxysilane compound that contains an amino group is more than 0.050 parts by weight and less than 0.100 parts by weight.

Abstract: Objects of the present invention are: to obtain a polyimide that is excellent in heat resistance, transparency, and optical isotropy and is soluble in an organic solvent; to provide, by using either a polyimide or a polyamic acid which is a precursor or the polyimide, a product or a member that is highly required to have heat resistance and transparency; and particularly to provide a product and a member both of which are obtained by applying a polyamic acid solution and a polyimide solution of the present invention to the surface of an inorganic substance such as glass, metal, metal oxide, or a single crystal silicon. These objects can be attained by a polyimide acid and a polyimide which are each prepared from an alicyclic tetracarboxylic dianhydride and a monomer having a fluorene structure.

Abstract: Provided are a polyamic acid solution that can be formed into a film without peeling even when the film is thick and can be stably stored at room temperature, and a laminate that can be suitably used for production of a flexible device. In the alkoxysilane-modified polyamic acid solution according to the present invention, an additive amount of an alkoxysilane compound that contains an amino group is more than 0.050 parts by weight and less than 0.100 parts by weight.

Abstract: The object of the present invention is to obtain the polyimide and the polyamic acid excellent in heat resistance, low thermal expansion property, and transparency and achieve low birefringence and to provide a product or a member, demanded to have high heat resistance and transparency, by using the polyimide or the polyamic acid. In particular, the object is to provide a product and a member in which the polyimide or the polyamic acid of the present invention is formed on a surface of an inorganic substance such as glass, metal, a metal oxide, or a single crystal silicon. The objects are attained by introducing a rigid structure and an alicyclic structure into a skeleton and using a monomer having a fluorene skeleton together.

Abstract: The present invention provides (A) a polyamic acid solution which can be (i) used to form a film that does not peel off even in a case where the film has a large thickness, and (ii) stably stored at a room temperature, and (B) a laminate that can be suitably used for production of a flexible device. An alkoxysilane-modified polyamic acid solution of the present invention can be obtained by reacting (a) an alkoxysilane compound containing the amino group and (b) a polyamic acid solution, and has a molar ratio of 0.980 or more and 0.9995 or less, which molar ratio is obtained by dividing a total number of moles of an aromatic tetracarboxylic dianhydride by a total number of moles of an aromatic diamine.

Abstract: The object of the present invention is to obtain the polyimide and the polyamic acid excellent in heat resistance, low thermal expansion property, and transparency and achieve low birefringence and to provide a product or a member, demanded to have high heat resistance and transparency, by using the polyimide or the polyamic acid. In particular, the object is to provide a product and a member in which the polyimide or the polyamic acid of the present invention is formed on a surface of an inorganic substance such as glass, metal, a metal oxide, or a single crystal silicon. The objects are attained by introducing a rigid structure and an alicyclic structure into a skeleton and using a monomer having a fluorene skeleton together.

Abstract: Objects of the present invention are: to obtain a polyimide that is excellent in heat resistance, transparency, and optical isotropy and is soluble in an organic solvent; to provide, by using either a polyimide or a polyamic acid which is a precursor or the polyimide, a product or a member that is highly required to have heat resistance and transparency; and particularly to provide a product and a member both of which are obtained by applying a polyamic acid solution and a polyimide solution of the present invention to the surface of an inorganic substance such as glass, metal, metal oxide, or a single crystal silicon. These objects can be attained by a polyimide acid and a polyimide which are each prepared from an alicyclic tetracarboxylic dianhydride and a monomer having a fluorene structure.

Abstract: A catheter device (K, K1, K2 and K3) has a flexible hollow tube body (1) formed by a plurality of austenitic stainless steel wires (2) cylindrically stranded to provide a hollow structure. An inner surface of the flexible hollow tube body (1) has a convex-concave structure represented by the stainless steel wires (2) to provide helical grooves (30). A leading distal end of the flexible hollow tube body (1) is formed into a knife-edge circle configuration to provide a knife-edge circle front (3), thus imparting a perforative capability to improve its quality and performance.

Abstract: A moving-state determining device acquires a first overhead image from a bird's-eye image obtained at first image pickup timing and acquires a second overhead image, which can be regarded as the same road surface area as that of the first overhead image, for each of moving directions assumed for the moving body from a bird's-eye image obtained at second image pickup timing different from the first image pickup timing by a predetermined time period. The device compares a degree of similarity between the first overhead image and each of a plurality of second overhead images to acquire the second overhead image with the largest similarity degree as the same road surface area as that of the first overhead image. The device acquires the moving direction and a lateral displacement amount in the moving from a coordinate conversion condition based on which the second overhead image has been obtained.

Abstract: A catheter device (K, K1, K2 and K3) has a flexible hollow tube body (1) formed by a plurality of austenitic stainless steel wires (2) cylindrically stranded to provide a hollow structure. An inner surface of the flexible hollow tube body (1) has a convex-concave structure represented by the stainless steel wires (2) to provide helical grooves (30). A leading distal end of the flexible hollow tube body (1) is formed into a knife-edge circle configuration to provide a knife-edge circle front (3), thus imparting a perforative capability to improve its quality and performance.

Abstract: A camera for taking an image of movement of a hand, and a hand pattern switching apparatus which operates an object equipment based on the result of the image taken by the camera, having a storage unit for saving the image taken in the state that a hand does not exist in the image pickup area of the camera, as an initial image data, a differentiation unit for obtaining a difference image data between an original image data that is the image taken in the state that a hand exists in the image pickup area of the camera, and the initial image data, a luminance detection unit for obtaining an average luminance in a place close to a hand based on the image data of a place close to a hand obtained by the differentiation unit, and a processing unit for performing binary processing of the original image data by a threshold value based on the average luminance calculated by the luminance detection unit.

Abstract: A moving-state determining device acquires a first overhead image from a bird's-eye image obtained at first image pickup timing and acquires a second overhead image, which can be regarded as the same road surface area as that of the first overhead image, for each of moving directions assumed for the moving body from a bird's-eye image obtained at second image pickup timing different from the first image pickup timing by a predetermined time period. The device compares a degree of similarity between the first overhead image and each of a plurality of second overhead images to acquire the second overhead image with the largest similarity degree as the same road surface area as that of the first overhead image. The device acquires the moving direction and a lateral displacement amount in the moving from a coordinate conversion condition based on which the second overhead image has been obtained.

Abstract: A hand pattern switch device recognizes a hand pattern from an image of a hand in an image pickup zone and detects a hand motion. One of controlled objects is selected based on the recognized hand pattern and/or hand motion. In accordance with the selected object, a mode of detection of operation information based on hand motion is changed. In a moved distance detecting mode, a moved distance of the hand in the zone is detected as operation information, and in a stop time detecting mode, a stop time of the hand at a stop position to which the hand has been moved in the zone is detected as operation information. The image pickup zone is at a location which is located laterally to a steering wheel and to which a driver can extend his/her arm without changing a driving posture.