Abstract: A non-invasive subject-information imaging apparatus according to this invention includes a light generating unit which generates light containing a specific wavelength component, a light irradiation unit which radiates the generated light into a subject, a waveguide unit which guides the light from the light generating unit to the irradiation unit, a plurality of two-dimensionally arrayed electroacoustic transducer elements, a transmission/reception unit which transmits ultrasonic waves to the subject by driving the electroacoustic transducer elements, and generates a reception signal from electrical signals converted by electroacoustic transducer elements, and a signal processing unit which generates volume data of a living body function by processing a reception signal corresponding to acoustic waves generated in the subject by light irradiation, and generates volume data of a tissue morphology by processing a reception signal corresponding to echoes generated in the subject upon transmission of the ultras

Abstract: A stiffness detector includes a bending portion configured to bend a paper sheet to be carried. The stiffness detector transmits acoustic waves to an incidence point on an inner surface of the paper sheet which is bent by the bending portion and is carried, thereby exciting Lamb waves. The stiffness detector receives leaky waves of the Lamb waves emitted from a detection point on the inner surface of the paper sheet. The stiffness detector specifies a maximum crest value based on the received signals, and judges whether the paper sheet is an unimpaired sheet based on the specified maximum crest value.

Abstract: A stiffness detector transmits acoustic waves to a paper sheet at a predetermined angle to excite Lamb waves. The stiffness detector receives leaky waves of the Lamb waves propagated through the paper sheet at different angles with respect to the paper sheet by a plurality of reception sensors. The stiffness detector is configured to specify a maximum leak angle at which a leak amount of the acoustic waves from the paper sheet becomes maximum based on outputs from the plurality of reception sensors in the reception module and to judge a degree of fatigue of the paper sheet based on the specified maximum leak angle.

Abstract: A two-dimensional array ultrasonic probe is provided with a two-dimensional ultrasonic array and a surface protection layer provided on the array. The two-dimensional ultrasonic array arranges a plurality of piezoelectric vibration elements two-dimensionally. The surface protection layer is made essentially of polybutadiene series rubber. The polybutadiene series rubber is synthesized from 100 parts by weight of polybutadiene and 1 to 5 parts by weight of glycerin.

Abstract: The present invention relates to an ultrasonic probe including a piezoelectric element, a first acoustic matching layer provided on the front face of the piezoelectric element and formed of a solid inorganic material, and a second acoustic matching layer provided on the first acoustic matching layer and formed of a mixture of an organic resin and 10 to 30% by volume of oxide powder with a density of 6.5 g/cm3 or more.

Abstract: A nucleic acid detection sensor comprises a plurality of nucleic acid chain fixed electrodes to which a probe nucleic acid chain is fixed, and a counter electrode which is arranged opposite to the nucleic acid chain fixed electrode, and a current flowing between the counter electrode and the nucleic acid chain fixed electrode.

Abstract: A nucleic acid detection sensor comprises a plurality of nucleic acid chain fixed electrodes to which a probe nucleic acid chain is fixed, and a counter electrode which is arranged opposite to the nucleic acid chain fixed electrode, and a current flowing between the counter electrode and the nucleic acid chain fixed electrode.

Abstract: A two-dimensional array ultrasonic probe includes a plurality of channels arranged apart from each other in a two-dimensional direction, each channel including a laminated piezoelectric element and an acoustic matching layer formed on the laminated piezoelectric element, the laminated piezoelectric element including a plurality of first and second electrodes arranged alternately within a piezoelectric body in a thickness direction of the piezoelectric body such that the side edges alone of the first electrodes and the second electrodes are exposed to the two mutually facing side surfaces of the piezoelectric body, respectively. The laminated piezoelectric element is mounted to a backing member. A signal side electrode and a ground electrode are formed to respectively extend from both side surface of the piezoelectric body to reach the backing member and are connected to the side edges of the first and second electrodes exposed to the side surface of piezoelectric body, respectively.

Abstract: A method and apparatus for non-invasive measurement of living body information comprises a light source configured to generate light containing a specific wavelength component, an irradiation unit configured to irradiate a subject with the light, and at least one acoustic signal detection unit including piezoelectric devices formed of a piezoelectric single crystal containing lead titanate and configured to detect an acoustic signal which is generated due to the energy of the irradiation light absorbed by a specific substance present in or on a subject.

Abstract: The present invention relates to an ultrasonic probe including a piezoelectric element, a first acoustic matching layer provided on the front face of the piezoelectric element and formed of a solid inorganic material, and a second acoustic matching layer provided on the first acoustic matching layer and formed of a mixture of an organic resin and 10 to 30% by volume of oxide powder with a density of 6.5 g/cm3 or more.

Abstract: An apparatus includes an optical transmission unit which irradiates a subject to be examined with light containing a specific wavelength component, an electroacoustic conversion unit which receives acoustic waves generated inside the subject by the light radiated by the optical transmission unit and converts them into electrical signals, an image data generating unit which generates first image data on the basis of the reception signals obtained by the electroacoustic conversion unit, an electroacoustic conversion unit which receives ultrasonic reflection signals obtained by transmitting ultrasonic waves to the subject and converts them into electrical signals, an image data generating unit which generates second image data on the basis of the reception signals obtained by the electroacoustic conversion unit, and a display unit which combines the first and second image data and displays the resultant data.

Abstract: A non-invasive subject-information imaging apparatus according to this invention includes a light generating unit which generates light containing a specific wavelength component, a light irradiation unit which radiates the generated light into a subject, a waveguide unit which guides the light from the light generating unit to the irradiation unit, a plurality of two-dimensionally arrayed electroacoustic transducer elements, a transmission/reception unit which transmits ultrasonic waves to the subject by driving the electroacoustic transducer elements, and generates a reception signal from electrical signals converted by electroacoustic transducer elements, and a signal processing unit which generates volume data about a living body function by processing a reception signal corresponding to acoustic waves generated in the subject by light irradiation, and generates volume data about a tissue morphology by processing a reception signal corresponding to echoes generated in the subject upon transmission of the

Abstract: A nucleic acid detection sensor comprises a plurality of nucleic acid chain fixed electrodes to which a probe nucleic acid chain is fixed, and a counter electrode which is arranged opposite to the nucleic acid chain fixed electrode, and a current flowing between the counter electrode and the nucleic acid chain fixed electrode.

Abstract: A nucleic acid detection sensor comprises a plurality of nucleic acid chain fixed electrodes to which a probe nucleic acid chain is fixed, and a counter electrode which is arranged opposite to the nucleic acid chain fixed electrode, and a current flowing between the counter electrode and the nucleic acid chain fixed electrode.

Abstract: An apparatus includes an optical transmission unit which irradiates a subject to be examined with light containing a specific wavelength component, an electroacoustic conversion unit which receives acoustic waves generated inside the subject by the light radiated by the optical transmission unit and converts them into electrical signals, an image data generating unit which generates first image data on the basis of the reception signals obtained by the electroacoustic conversion unit, an electroacoustic conversion unit which receives ultrasonic reflection signals obtained by transmitting ultrasonic waves to the subject and converts them into electrical signals, an image data generating unit which generates second image data on the basis of the reception signals obtained by the electroacoustic conversion unit, and a display unit which combines the first and second image data and displays the resultant data.

Abstract: A nucleic acid detection sensor comprises a plurality of nucleic acid chain fixed electrodes to which a probe nucleic acid chain is fixed, and a counter electrode which is arranged opposite to the nucleic acid chain fixed electrode, and a current flowing between the counter electrode and the nucleic acid chain fixed electrode.

Abstract: A two-dimensional array ultrasonic probe comprises printed circuit boards, each carrying piezoelectric vibrators arranged in the form of a matrix and adapted to draw signal leads and grounding wires from the vibrators through the gaps separating the columns of the matrix. A row of vibrators are arranged in an array on each of the printed circuit boards and then the printed circuit boards carrying vibrators are arranged in the column to produce a two-dimensional array transducer.

Abstract: A two-dimensional array ultrasonic probe comprises printed circuit boards, each carrying piezoelectric vibrators arranged in the form of a matrix and adapted to draw signal leads and grounding wires from the vibrators through the gaps separating the columns of the matrix. A row of vibrators are arranged in an array on each of the printed circuit boards and then the printed circuit boards carrying vibrators are arranged in the column to produce a two-dimensional array transducer.

Abstract: A nucleic acid detection sensor comprises a plurality of nucleic acid chain fixed electrodes to which a probe nucleic acid chain is fixed, and a counter electrode which is arranged opposite to the nucleic acid chain fixed electrode, and a current flowing between the counter electrode and the nucleic acid chain fixed electrode.

Abstract: A fingerprint detection apparatus includes a plurality of first electrodes having linear shapes and arranged in parallel to one another, a plurality of second electrodes arranged between said plurality of first electrodes and arranged in the longitudinal direction of each of said plurality of first electrodes, keeping apart from one another, and detecting section for obtaining a fingerprint image in accordance with resistance value groups each of which is generated between the adjacent first and second electrodes when the finger of a person required to be identified has been brought into contact with said plurality of first and second electrodes. Therefore, the fingerprint of a person required to be identified can be detected without a complicated optical system.