Patents by Inventor Hisafumi Ebisawa
Hisafumi Ebisawa 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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Publication number: 20240137637Abstract: An apparatus acquiring an image of a subject of a phase object includes: a first light irradiation unit irradiating the subject with a parallel light as a first light; a second light irradiation unit irradiating the subject with a second light at an incidence angle different from that of the first light irradiation unit; an imaging lens having a telecentric optical system; and an imaging unit which images the subject irradiated with at least one of the first light and the second light through the imaging lens, wherein the optical axis of the imaging lens is parallel to an optical path of the first light irradiation unit, the imaging unit is arranged on the optical axis opposite to the first light irradiation unit to the subject, and an optical path length adjusting unit controlling the distance between the telecentric optical system and the subject on the optical axis is arranged.Type: ApplicationFiled: October 12, 2023Publication date: April 25, 2024Inventors: HISAFUMI EBISAWA, YOSHIKATSU ICHIMURA, ICHIRO HARADA
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Publication number: 20240026271Abstract: There are suitability and unsuitability of a shape of a substrate used for cell culture, for each step in various cell culture protocols, and it has been difficult to continue providing a culture substrate shape suitable for each step. Provided is a cell culture system including: a culture sheet deformable by external force, to which a cell can adhere and be cultured; a die member configured to be pressed against the culture sheet to deform a shape of the culture sheet into a randomly-selected shape; an optical device configured to observe a state of the cell adhering onto the culture sheet; and a drive unit configured to move the die member, to change a randomly-selected portion of the culture sheet into a shape along the die member or release the culture sheet from deformation.Type: ApplicationFiled: July 12, 2023Publication date: January 25, 2024Inventors: HISAFUMI EBISAWA, ICHIRO HARADA, YOJI YAMAMOTO
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Patent number: 11035779Abstract: A particle container includes a measurement section in which a measurement region is formed and the measurement section measurably accommodates multiple particles in the measurement region. The measurement section is configured to change a width of the measurement region in the measuring direction of measuring the particles.Type: GrantFiled: December 12, 2019Date of Patent: June 15, 2021Assignee: Canon Kabushiki KaishaInventor: Hisafumi Ebisawa
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Publication number: 20200209142Abstract: A particle container includes a measurement section in which a measurement region is formed and the measurement section measurably accommodates multiple particles in the measurement region. The measurement section is configured to change a width of the measurement region in the measuring direction of measuring the particles.Type: ApplicationFiled: December 12, 2019Publication date: July 2, 2020Inventor: Hisafumi Ebisawa
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Publication number: 20180292358Abstract: A probe array in which adhesion of bubbles generated in an acoustic matching liquid is reduced, and an acoustic wave reception device including the probe array are provided. The probe array includes a plurality of probes each having a reception surface which comes in contact with the acoustic matching liquid stored in a vessel, and a support portion that supports the plurality of probes and has a proximal surface which comes in contact with the acoustic matching liquid and is adjacent to the reception surface. The reception surface is equal or smaller in a contact angle with respect to the acoustic matching liquid to or than the proximal surface.Type: ApplicationFiled: April 3, 2018Publication date: October 11, 2018Inventors: Nobuhiro Ito, Mitsuo Nishimura, Hisafumi Ebisawa
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Publication number: 20180168457Abstract: A photoacoustic apparatus is used that includes a light irradiating unit irradiating a subject that is part of an examinee with light; a probe receiving an acoustic wave generated from the subject irradiated with the light and outputs a signal; and a determining unit determining, based on information related to a specific light absorbing region on a surface of the subject, whether or not a masking member that optically masks the specific light absorbing region is arranged at a specific position.Type: ApplicationFiled: December 12, 2017Publication date: June 21, 2018Inventor: Hisafumi Ebisawa
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Publication number: 20180100832Abstract: A holding member is provided which is capable of, in an acoustic wave apparatus. The holding member includes: a sheet portion configured to separate an upper space for a subject and a lower space for a lower acoustic matching liquid and to store an upper acoustic matching liquid thereon; and a frame portion configured to tauten the sheet portion in a semi-container shape, and a transmission loss by the sheet portion with respect to an acoustic wave is smaller than a transmission loss by the frame portion with respect to the acoustic wave.Type: ApplicationFiled: October 4, 2017Publication date: April 12, 2018Inventor: Hisafumi Ebisawa
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Patent number: 9885780Abstract: An object information acquiring apparatus includes a probe configured to irradiate ultrasonic waves to an object, receive ultrasonic echoes, and convert the ultrasonic echoes into electric signals, a scanning unit configured to cause the probe to perform back-and-forth scanning on the object, an ultrasonic control unit configured to control irradiation of ultrasonic waves, a signal processing unit configured to obtain an ultrasonic, and a combining unit configured to combine a plurality of ultrasonic images. The scanning unit causes the probe to perform back-and-forth scanning on the object such that regions subjected to ultrasonic irradiation performed by the probe in forward and backward paths in the back-and-forth scanning overlap with each other. The ultrasonic control unit employs different methods for irradiating ultrasonic waves in the forward and backward paths. The combining unit combines a plurality of ultrasonic images with one another.Type: GrantFiled: March 21, 2014Date of Patent: February 6, 2018Assignee: Canon Kabushiki KaishaInventor: Hisafumi Ebisawa
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Publication number: 20170156708Abstract: In the performance evaluation of a photoacoustic measurement apparatus using a phantom, an increase in the accuracy of the evaluation of the apparatus is improved. A phantom capable of being used to evaluate a photoacoustic measurement apparatus includes a recording unit having stored therein information regarding a temporal change in an optical characteristic or an acoustic characteristic of the phantom.Type: ApplicationFiled: November 28, 2016Publication date: June 8, 2017Inventors: Nobuhito Suehira, Ryo Ogawa, Takahiro Suita, Hisafumi Ebisawa
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Publication number: 20170100094Abstract: An object information acquiring apparatus of the present invention has a conversion element receiving an acoustic wave generated in and propagated from an object and converting the acoustic wave to an electric signal, a holding unit holding an acoustic matching member that acoustically matches the object to the probe, a temperature measuring unit measuring temperatures at a plurality of positions in the acoustic matching member, a reconstruction processing unit acquiring a sound speed of the acoustic matching member and characteristic information of the object based on the sound speed and the electric signal, and a controlling unit performing control based on the temperatures measured at the plurality of positions.Type: ApplicationFiled: September 29, 2016Publication date: April 13, 2017Inventor: Hisafumi Ebisawa
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Patent number: 9572546Abstract: Provided is an object information acquiring apparatus including a probe in which a plurality of elements transmitting an ultrasound wave to a measurement target region of an object and receiving a reflected wave is arranged in a first direction, and a mechanical scanning unit that moves the probe in the first direction and a direction crossing the first direction. A transmission processor, to each element included in a transmission aperture element row transmitting the ultrasound wave, inputs an input signal for driving the element, and a received signal processor combines received signals obtained by the elements included in a reception aperture element row receiving the ultrasound wave. A generator generates property information on the object from the combined signal, and a controller that determines at least one of the number of elements included in the transmission aperture element row.Type: GrantFiled: March 14, 2013Date of Patent: February 21, 2017Assignee: CANON KABUSHIKI KAISHAInventors: Hiroki Takahashi, Hisafumi Ebisawa
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Patent number: 9535159Abstract: A test-object-information acquisition apparatus includes a light radiating unit, a first probe that receives an acoustic wave generated in a test object in response to the test object being irradiated with light radiated by the light radiating unit, a second probe that radiates an ultrasound beam towards the test object and receives a reflected wave from the test object, an ultrasound controller configured to control the second probe, and a scanning unit configured to cause the light radiating unit and the first and second probes to perform a reciprocating scan process across the test object. The ultrasound controller varies a radiation method for radiating the ultrasound beam from the second probe to the test object so that the radiation method is different between an outbound scan and a return scan of the reciprocating scan process.Type: GrantFiled: May 29, 2013Date of Patent: January 3, 2017Assignee: Canon Kabushiki KaishaInventor: Hisafumi Ebisawa
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Publication number: 20160331347Abstract: An object information acquiring apparatus is used which includes a receiver including a plurality of elements each transmitting an acoustic wave, receiving an echo wave resulting from reflection of the acoustic wave by an object, and outputting an electric signal, a transmission controller that controls an intensity of the acoustic wave transmitted from each of the plurality of elements, a scanner that moves the receiver in a predetermined scanning region, and an information processor that acquires characteristics information on an inside of the object using the electric signal. The transmission controller controls the intensity of the acoustic wave in accordance with a shape of the object and a position of the receiver in the predetermined scanning region.Type: ApplicationFiled: April 28, 2016Publication date: November 17, 2016Inventors: Hisafumi Ebisawa, Kenichi Nagae
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Publication number: 20160296206Abstract: An object information acquiring apparatus comprising: a receiver in which a plurality of elements is arranged, each of the plurality of elements receives an acoustic wave propagating from an object and outputs an electric signal; a scanner configured to move the receiver through a predetermined scanning region; an information processor configured to acquire characteristics information on an interior of the object using the electric signal; and an acoustic attenuator configured to be arranged between the receiver and the object in the scanning region and have an acoustic attenuation characteristics distribution corresponding to a shape of the object is used.Type: ApplicationFiled: April 8, 2016Publication date: October 13, 2016Inventors: Hisafumi Ebisawa, Kenichi Nagae
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Publication number: 20160135688Abstract: Provided is an object information acquiring apparatus including: a holding member that has a curvature and holds an object; a conversion element that receives an acoustic wave propagating from the object via the holding member and outputs an electrical signal; a driving unit that moves at least one of the conversion element and the holding member so that an acoustic wave reception surface of the conversion element is not parallel to a tangential plane of the holding member at a position at which a normal line of the acoustic wave reception surface drawn from the conversion element crosses the holding member; and an information processor that acquires specific information inside the object using the electrical signal.Type: ApplicationFiled: November 12, 2015Publication date: May 19, 2016Inventor: Hisafumi Ebisawa
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Publication number: 20140288426Abstract: An object information acquiring apparatus includes a probe configured to irradiate ultrasonic waves to an object, receive ultrasonic echoes, and convert the ultrasonic echoes into electric signals, a scanning unit configured to cause the probe to perform back-and-forth scanning on the object, an ultrasonic control unit configured to control irradiation of ultrasonic waves, a signal processing unit configured to obtain an ultrasonic, and a combining unit configured to combine a plurality of ultrasonic images. The scanning unit causes the probe to perform back-and-forth scanning on the object such that regions subjected to ultrasonic irradiation performed by the probe in forward and backward paths in the back-and-forth scanning overlap with each other. The ultrasonic control unit employs different methods for irradiating ultrasonic waves in the forward and backward paths. The combining unit combines a plurality of ultrasonic images with one another.Type: ApplicationFiled: March 21, 2014Publication date: September 25, 2014Applicant: CANON KABUSHIKI KAISHAInventor: Hisafumi Ebisawa
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Publication number: 20140051970Abstract: The present invention employs an object information acquiring apparatus comprising a probe including a plurality of conversion elements which receive acoustic waves emitted from an object and convert the acoustic waves into received signals, a delay unit which matches phases of the plurality of received signals output from the plurality of conversion elements, a signal adder which adds the plurality of received signals output from the delay unit, for each group to obtain latter input signals, and an adaptive signal processor which generates internal image data of the object by performing adaptive signal processing on the plurality of latter input signals output from a plurality of the signal adders.Type: ApplicationFiled: April 26, 2012Publication date: February 20, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Hisafumi Ebisawa, Haruo Yoda, Kenichi Nagae
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Patent number: 8654039Abstract: A display panel includes a face plate having a transparent substrate, a plurality of phosphor layers disposed on the transparent substrate for emitting different color lights, and a plurality of transmittance adjustment layers interposed between the transparent substrate and the plurality of phosphor layers. Each transmittance adjustment layer corresponds to each phosphor layer for adjusting the transmittances of the lights emitted from the plurality of phosphor layers, and the transmittance adjustment layers have a filtering function with an approximately constant transmittance in the visible light wavelength region. In addition, a rear plate has a plurality of display elements each corresponding to each phosphor layer, wherein the face plate and the rear plate are disposed so that the phosphor layers formed on the face plate are opposite to the display elements formed on the rear plate.Type: GrantFiled: February 13, 2012Date of Patent: February 18, 2014Assignee: Canon Kabushiki KaishaInventors: Tsuyoshi Oyaizu, Hisafumi Ebisawa, Yukio Okudo
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Publication number: 20130322204Abstract: A test-object-information acquisition apparatus includes a light radiating unit, a first probe that receives an acoustic wave generated in a test object in response to the test object being irradiated with light radiated by the light radiating unit, a second probe that radiates an ultrasound beam towards the test object and receives a reflected wave from the test object, an ultrasound controller configured to control the second probe, and a scanning unit configured to cause the light radiating unit and the first and second probes to perform a reciprocating scan process across the test object. The ultrasound controller varies a radiation method for radiating the ultrasound beam from the second probe to the test object so that the radiation method is different between an outbound scan and a return scan of the reciprocating scan process.Type: ApplicationFiled: May 29, 2013Publication date: December 5, 2013Inventor: Hisafumi Ebisawa
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Publication number: 20130267851Abstract: Provided is an object information acquiring apparatus including: a probe in which a plurality of elements transmitting an ultrasound wave to a measurement target region of an object and receiving a reflected wave is arranged in a first direction; a mechanical scanning unit that moves the probe in the first direction and a direction crossing the first direction; a transmission processor that, to each element included in a transmission aperture element row transmitting the ultrasound wave, inputs an input signal for driving the element; a received signal processor that combines received signals obtained by the elements included in a reception aperture element row receiving the ultrasound wave; a generator that generates property information on the object from the combined signal; and a controller that determines at least one of the number of elements included in the transmission aperture element row.Type: ApplicationFiled: March 14, 2013Publication date: October 10, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Hiroki Takahashi, Hisafumi Ebisawa