Patents by Inventor Hideki Yoshikawa
Hideki Yoshikawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8861812Abstract: Provided is an ultrasonic imaging apparatus including: a time-gain controller (TGC) that compensates an amplitude fading occurring in the process of propagation inside a living body; a scan converter (SC) that constructs image data; a TIC measurement unit that measures a TIC of each pixel; an evaluation index input unit that inputs an index for evaluating hemodynamics on the basis of a TIC; a mapping parameter estimation unit that estimates a mapping parameter comparable to an evaluation index; a TIC image construction unit that constructs a two-dimensional image on the basis of the mapping parameter; and a pixel detection unit that extracts a region corresponding to a color map from a TIC image, and utilizing a TIC measured with each pixel so as to measure a difference in hemodynamics.Type: GrantFiled: February 17, 2009Date of Patent: October 14, 2014Assignee: Hitachi Medical CorporationInventors: Hideki Yoshikawa, Takashi Azuma
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Publication number: 20140304638Abstract: A medical system includes a multi-controller including a plurality of medical care devices; a storage unit that stores operator information, patient information and device information; and a control unit that, based on the operator information, the patient information and the device information, displays an operation screen on the medical care device to be used for medical care such that the operation screen reflects a setting made by the operator to perform the medical care and a setting made by the patient to receive the medical care, the operation screen being displayed on an operation display unit.Type: ApplicationFiled: April 25, 2014Publication date: October 9, 2014Applicant: J. MORITA MANUFACTURING CORPORATIONInventors: Hideki Yoshikawa, Masato Wada, Noriyuki Tanaka, Kuniomi Murakami
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Publication number: 20140219539Abstract: Provided is an image diagnostic device with which the start and end of the in-flow of a contrast medium are automatically assessed. An image diagnostic device assesses the start and end times of the in-flow of a contrast medium into organs in a lifeform which is a subject. The image diagnostic device comprises: an input unit (11) which receives an input of a signal from a contrast medium which is acquired from such as an image acquisition unit (22); a luminosity evaluation unit (13) which creates a luminosity curve that denotes a change over time in signal strength; a function evaluation unit (14) which approximates the luminosity curve with an S-shaped function and creates a model function; an assessment unit (12), further comprising a circulation evaluation unit (15) which uses a tangent line at an inflection point of the model function and assesses the start and end of the in-flow of the contrast medium; and a display unit (19) which displays the result which is evaluated with the assessment unit (12).Type: ApplicationFiled: June 26, 2012Publication date: August 7, 2014Applicant: HITACHI MEDICAL CORPORATIONInventor: Hideki Yoshikawa
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Publication number: 20140193099Abstract: Provided is an image diagnostic device with which it is possible to correct location misalignment of an image capture subject, and to improve the reliability of the result of the correction, in time series image data.Type: ApplicationFiled: July 24, 2012Publication date: July 10, 2014Applicant: HITACHI MEDICAL CORPORATIONInventors: Hideki Yoshikawa, Takashi Azuma
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Publication number: 20140126687Abstract: An X-ray photography apparatus including: a turning arm that supports an X-ray generator and an X-ray detector which are opposed to each other so that the head of a patient can be interposed therebetween, and a moving mechanism that includes a turning part and a moving part. The turning part turns the turning arm about a turning axis with respect to the head. The moving part moves the turning arm relative to the head in a direction perpendicular to the turning axis. The X-ray photography apparatus also includes: an image processor that generates an X-ray image, a photographic region designation part that designates part of a row of teeth along a dental arch as a pseudo intraoral radiography region, and an X-ray forming mechanism that changes the irradiation direction in which the head is irradiated with an X-ray relative to the axial direction of the body axis of the patient.Type: ApplicationFiled: November 7, 2013Publication date: May 8, 2014Applicant: J. Morita Manufacturing CorporationInventors: Hideki Yoshikawa, Makoto Honjo
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Publication number: 20140126686Abstract: An X-ray photography apparatus including: a turning arm that supports an X-ray generator and an X-ray detector while the X-ray generator and the X-ray detector are opposed to each other so that a head of a patient can be interposed therebetween; and a moving mechanism that turns the turning arm about a turning axis with respect to the head and moves the turning arm in a direction perpendicular to the turning axis with respect to the head. The X-ray photography apparatus further includes: an image processor that generates an X-ray image based on an electric signal output from the X-ray detector; and a photographic region designation receiving part that designates part of a row of teeth along a dental arch as a pseudo intraoral radiography region. The image processor generates plural tomographic images by applying convolution and filtered back projection to X-ray image data obtained by pseudo intraoral radiography.Type: ApplicationFiled: November 7, 2013Publication date: May 8, 2014Applicant: J. Morita Manufacturing CorporationInventors: Tomoyuki Sadakane, Hideki Yoshikawa
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Patent number: 8660162Abstract: In this semiconductor laser apparatus, a first wire-bonding portion is arranged at a position in a fourth direction from a first semiconductor laser device and in a first direction from a photodetector, and a second wire-bonding portion is arranged at a position in the fourth direction from the first semiconductor laser device and in a third direction from the first wire-bonding portion. A third wire-bonding portion is arranged at a position in a second direction from a third semiconductor laser device and in the first direction from the photodetector, and a fourth wire-bonding portion is arranged at a position in the second direction from the third semiconductor laser device and in the third direction from the third wire-bonding portion.Type: GrantFiled: July 25, 2011Date of Patent: February 25, 2014Assignee: Sanyo Electric Co., Ltd.Inventors: Masayuki Hata, Hideki Yoshikawa
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Publication number: 20130317361Abstract: An ultrasound diagnostic apparatus with which elastic modulus can be measured when measuring elastic modulus using shear wave generation. The ultrasound diagnostic apparatus includes an ultrasound probe that sends and receives echo signals, a strain-computing unit that receives an echo signal from the body by radiating a first displacement-detecting beam and computes strain information in a Region 1, a measurement position-selecting unit that selects a Region 2, within Region 1, based on the strain information, a displacement-generating unit that radiates a focused beam into the body and displaces the tissue, an elastic modulus-computing unit that receives an echo signal from the body by radiating a second displacement-detecting beam, detects the shear wave displacement that results from the focused beam, and computes the elastic modulus in Region 2, and a display unit that displays the strain image that is based on the strain information in Region 1 and the elastic modulus.Type: ApplicationFiled: December 28, 2011Publication date: November 28, 2013Applicant: HITACHI MEDICAL CORPORATIONInventors: Marie Tabaru, Takashi Azuma, Hideki Yoshikawa, Kunio Hashiba
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Patent number: 8588364Abstract: A medical X-ray apparatus comprising a supporting part for supporting an X-ray generator and a two-dimensional X-ray detector while interposing an object to be examined therebetween, a radiation area restricting part for restricting a radiation area of X-ray generated from the X-ray generator, and a scan driving part for scanning the object with the X-ray restricted by the radiation area restricting part as X-ray beam and for executing radiography. A direction intersecting with X-ray scan direction is defined as a height direction, the apparatus further comprises a radiation area setting part for setting at least one of both ends of width of the X-ray beam in the height direction at a desired position in accordance with the position of an interested area of the object; and the X-ray beam is irradiated only to the radiation area as set by the radiation area setting part with its beam width in height direction restricted by the radiation area restricting part.Type: GrantFiled: August 19, 2010Date of Patent: November 19, 2013Assignee: J. Morita Manufacturing CorporationInventors: Masakazu Suzuki, Hideki Yoshikawa, Takahiro Yoshimura, Makoto Honjo
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Publication number: 20130294569Abstract: An X-ray CT photographic apparatus including: a beam shaping mechanism that regulates an irradiation range of an X-ray generated from an X-ray generator and shapes the X-ray into an X-ray cone beam; and a main body controller that changes a read region, where an X-ray detection signal is read in the X-ray detector, according to the irradiation range of the X-ray cone beam. The main body controller changes the irradiation range of the X-ray cone beam to an x-axis direction during an X-ray CT photography such that only a set CT photographic region is irradiated with the X-ray cone beam according to the set CT photographic region input through a CT photographic region setting unit. The main body controller changes a read region in an X-ray detector with respect to the x-axis direction in a detection surface of the X-ray detector during the X-ray CT photography.Type: ApplicationFiled: May 1, 2013Publication date: November 7, 2013Applicant: J. Morita Manufacturing CorporationInventors: Hideki Yoshikawa, Masakazu Suzuki
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Publication number: 20130289402Abstract: When multiple tissues having differing speeds of sound are intermixed in the viewing field of a measured subject such as a living body, the invention measures hardness, such as modulus of elasticity or viscosity, with high precision. As a means for detecting heterogeneity of sound speed in the tissues of a subject, a displacement-generating transmission beam is applied from a displacement generating beam-generating device (13) of a displacement-generating unit (10) on an ultrasound probe (1) to irradiate a focused ultrasonic wave into the living tissue and generate a shear wave. From the displacement-time waveforms of multiple positions of the shear wave detected using the displacement detection transmission beam-generating device (22) and the displacement detection received beam-computing device (23) of a displacement-detecting unit (20), at least two pieces of information, such as the integrated value and the maximum amplitude value, are obtained.Type: ApplicationFiled: December 1, 2011Publication date: October 31, 2013Applicant: HITACHI MEDICAL CORPORATIONInventors: Marie Tabaru, Takashi Azuma, Hideki Yoshikawa, Kunio Hashiba
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Patent number: 8562531Abstract: There is provided a ultrasonic motion detecting device that detects a three-dimensional motion of an object. The ultrasonic motion detecting device, comprises first and second ultrasonic transducers 13 having piezoelectric elements arranged in an array, which transmit ultrasonic waves to an object and acquire reflection signals from the object, a motion detection unit 20 that extracts an estimation region which is used for estimating a motion of the object from the reflection signals that are acquired by the first and second ultrasonic transducers, and detects a three-dimensional motion within the estimation region, and an image display unit 19 that displays the three-dimensional motion within the estimation region, wherein ultrasonic wave scanning surfaces due to the first and second ultrasonic transducers cross over each other.Type: GrantFiled: November 16, 2004Date of Patent: October 22, 2013Assignee: Hitachi Medical CorporationInventors: Hideki Yoshikawa, Takashi Azuma, Shin-ichiro Umemura, Ken-ichi Kawabata
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Publication number: 20130261451Abstract: A diagnostic imaging apparatus for imaging information changing with time and displaying it in real time, composed of an ultrasonic probe (2), having piezoelectric elements arranged in an array form that transmit ultrasonic waves to a target object (1) and acquires a reflection signal from the target object; a body movement measuring unit (12) that constitutes a two-dimensional ultrasonic image using the reflection signal acquired by the ultrasonic probe, sets, in the image plane, a plurality of measuring areas used for measuring the body movement of the target object, and measures the body movement and deformation amounts in the measuring areas; and an image accumulating (subtracting) unit for accumulating or subtracting images using body movement measured by the body movement measurement unit.Type: ApplicationFiled: May 28, 2013Publication date: October 3, 2013Applicant: Hitachi Medical CorporationInventors: Hideki YOSHIKAWA, Takashi AZUMA, Kenichi KAWABATA, Kazuaki SASAKI, Shinichiro UMEMURA
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Patent number: 8498375Abstract: An X-ray imaging apparatus includes an X-ray generation part, an X-ray detection part, and a revolution drive mechanism. The X-ray generation part has an X-ray generator including a cathode and an anode, and emits an X-ray beam from the X-ray generator. The X-ray detection part detects the X-ray beam. The revolution drive mechanism performs X-ray imaging by revolving the X-ray generation part and the X-ray detection part around the object while the X-ray generation part and the X-ray detection part are opposed to each other with said object interposed therebetween. The X-ray imaging apparatus controls a restriction part to thereby restrict an X-ray transmission in such a manner that the focal spot size of an X-ray beam used in X-ray CT imaging of a relatively narrow imaging region is smaller than the focal spot size of an X-ray beam used in X-ray CT imaging of a relatively large imaging region.Type: GrantFiled: March 11, 2011Date of Patent: July 30, 2013Assignee: J. Morita Manufacturing CorporationInventors: Masakazu Suzuki, Hideki Yoshikawa, Makoto Honjo
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Patent number: 8460191Abstract: An diagnostic imaging apparatus for imaging information changing with time and displaying it in real time, composed of an ultrasonic probe (2), having piezoelectric elements arranged in an array form that transmit ultrasonic waves to a target object (1) and acquires a reflection signal from the target object; a body movement measuring unit (12) that constitutes a two-dimensional ultrasonic image using the reflection signal acquired by the ultrasonic probe, sets, in the image plane, a plurality of measuring areas used for measuring the body movement of the target object, and measures the body movement and deformation amounts in the measuring areas; and an image accumulating (subtracting) unit for accumulating or subtracting images using body movement measured by the body movement measurement unit.Type: GrantFiled: May 18, 2006Date of Patent: June 11, 2013Assignee: Hitachi Medical CorporationInventors: Hideki Yoshikawa, Takashi Azuma, Kenichi Kawabata, Kazuaki Sasaki, Shinichiro Umemura
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Publication number: 20130144172Abstract: Disclosed is an ultrasound diagnosis device for creating an ultrasound image with a high contrast-to-tissue ratio. Said device sends a transmission pulse to the subject, uses an ultrasound probe to receive echoes reflected from an ultrasound contrast agent injected into the subject, and forms an image. The transmission pulse is sent such that nonlinear interactions between the constituent frequency components of said transmission pulse, as a result of the acoustic nonlinearity of the subject, do not produce sum and difference components in the frequency sensitivity range of the ultrasonic probe as the transmission pulse propagates across the subject.Type: ApplicationFiled: May 25, 2011Publication date: June 6, 2013Inventors: Kunio Hashiba, Hideki Yoshikawa, Tatsuya Hayashi
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Publication number: 20130116557Abstract: Provided are an ultrasonic diagnostic device and an ultrasonic image display method having a function of displaying an inflow time map representing relative differences in blood flow dynamics such as inflow time of a contrast agent in difference colors, including a function of selectively extracting a focused vessel and constructing a noise-less inflow time map, and in the comparison of differences in color between the constructed inflow time map and the past inflow time map to examine a change in blood flow dynamics by therapy or the like, an interpolation function of unifying the color of regions as a base. A TIC analysis unit 13 calculates a parameter (t?) indicating an inflow starting time of a contrast agent and a difference of brightness ?I due to the contrast agent using image data in a range designated by a image detection unit 11. A first pixel selection unit 15 selectively extracts a pixel meeting certain conditions and concurrently removes a non contrast-enhanced region.Type: ApplicationFiled: July 28, 2011Publication date: May 9, 2013Inventor: Hideki Yoshikawa
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Patent number: 8416921Abstract: An X-ray convergence element and an X-ray irradiation device including the X-ray convergence element are provided. The X-ray convergence element can extend a working distance from an exit-side opening end thereof to a specimen, and can perform analysis of the specimen with rough surface, a fluorescent X-ray analysis, and a X-ray diffraction analysis, regardless of a size of the specimen. An X-ray blocking member 23 is provided with three supporting members 233 for supporting the X-ray blocking member 23, which extend from an annular member 232 having approximately the same diameter as a diameter of an entrance-side opening end (outer diameter of a capillary 20) toward the center of the X-ray blocking member 23 to fix the annular member 232 to the capillary 20. The annular member 232, the supporting members 233, and the X-ray blocking member 23 are integrally formed of a metal that shields X-rays, such as tantalum, tungsten, or molybdenum.Type: GrantFiled: February 8, 2007Date of Patent: April 9, 2013Assignees: Horiba, Ltd., National Institute for Materials ScienceInventors: Hiromoto Nakazawa, Hideki Yoshikawa, Aurel-Mihai Vlaicu, Kenichi Obori, Shintaro Komatani, Sumito Ohzawa
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Patent number: 8254520Abstract: An object of the present invention is to provide an image processing method, etc. capable of producing a panorama tomogram with a simple operation whenever required by the operator. The present invention relates to an image processing method for producing a panorama tomogram of the dental arch using the X-ray projection data on the dentomaxillofacial region obtained by the X-ray computer tomography. The image processing method according to the present invention includes the steps of retrieving the dental arch projection data corresponding to the dental arch from the X-ray projection data based on the preset position and shape information to specify the position and shape of the dental arch from the X-ray projection data (S3) and generating a panorama tomogram by executing a predetermined process using the dental arch projection data (S4).Type: GrantFiled: February 7, 2008Date of Patent: August 28, 2012Assignee: J. Morita Manufacturing CorporationInventors: Tomoyuki Sadakane, Masakazu Suzuki, Hideki Yoshikawa, Teruji Nakai, Tetsuzo Ito
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Publication number: 20120033696Abstract: This semiconductor laser apparatus includes a package having sealed space inside and a semiconductor laser chip arranged in the sealed space. The package has a first member and a second member bonded to each other with an adhesive, a covering agent made of an ethylene-vinyl alcohol copolymer is formed on a bonded region of the first member and the second member in the sealed space, and the adhesive is covered with the covering agent.Type: ApplicationFiled: July 27, 2011Publication date: February 9, 2012Applicant: SANYO ELECTRIC CO., LTD.Inventors: Nobuhiko HAYASHI, Hideki YOSHIKAWA, Keiichi KURAMOTO