Patents by Inventor Hajime Nakata
Hajime Nakata 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: 7769130Abstract: An X-ray imaging apparatus is disposed with an imaging table that includes an imaging surface with which a breast of an examinee in an upright posture is brought into contact and handles that are disposed higher than the imaging surface during craniocaudal imaging. Grip portions of the handles slant so as to gradually become closer to a chest wall contacting portion as the grip portions approach the imaging surface. Thus, when an examinee is made to grasp the handles, the posture of the examinee can be made more natural.Type: GrantFiled: September 24, 2008Date of Patent: August 3, 2010Assignee: FUJIFILM CorporationInventors: Hajime Nakata, Katsumi Hirabayashi
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Patent number: 7750307Abstract: A radiation image capturing apparatus includes a conductive gel member disposed between a radiation detector and an integrated circuit provided in vicinity of the radiation detector and electrically connected thereto. The conductive gel member blocks the electromagnetic noise generated by the integrated circuit and thereby prevents the electromagnetic noise from propagating to the radiation detector. As a result, the electrical signals generated by the radiation detector are prevented from being affected by the electromagnetic noise and high-quality radiation images can be acquired.Type: GrantFiled: September 26, 2008Date of Patent: July 6, 2010Assignee: FUJIFILM CorporationInventors: Kazuo Hakamata, Hajime Nakata, Kuniaki Miyako, Yasunori Ohta, Yuto Tanaka
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Patent number: 7714296Abstract: A radiation solid-state detecting device includes a cooling panel disposed on a surface of a sensor substrate that is irradiated with radiation, or on a rear surface of the sensor substrate opposite to the irradiated surface thereof. The cooling panel comprises a plurality of cooling units. Cooling units, which face (pixels depending on) the recording areas in which radiation image information is recorded in the sensor substrate, are energized to cool the recording areas.Type: GrantFiled: September 26, 2008Date of Patent: May 11, 2010Assignee: FUJIFILM CorporationInventors: Yasunori Ohta, Kazuo Hakamata, Kuniaki Miyako, Hajime Nakata, Yuto Tanaka
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Patent number: 7714295Abstract: An image detecting device includes an image detector for recording an image therein and outputting the recorded image as image information, and a cooling panel disposed on a surface of the image detector for cooling the image detector, wherein the cooling panel has a thermal conductivity oriented in a planar direction along the surface of the image detector.Type: GrantFiled: September 26, 2008Date of Patent: May 11, 2010Assignee: FUJIFILM CorporationInventors: Yasunori Ohta, Kazuo Hakamata, Kuniaki Miyako, Hajime Nakata, Yuto Tanaka
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Patent number: 7639779Abstract: An irradiation dose calculator calculates a pre-exposure-mode-required irradiation dose using the thickness of a breast which measured by a thickness measuring unit, as a parameter, and the irradiation time of a pre-exposure mode is controlled to apply a radiation to the breast in the pre-exposure mode. According to the dose of the radiation detected by a dose detecting sensor in the pre-exposure mode, the irradiation dose calculator calculates a main-exposure-mode-required irradiation dose, and the irradiation time of a main exposure mode is controlled to apply the radiation to the breast in the main exposure mode, thereby capturing a radiation image of the breast.Type: GrantFiled: June 5, 2008Date of Patent: December 29, 2009Assignee: FUJIFILM CorporationInventors: Nobuhiko Kashiwagi, Hajime Nakata
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Publication number: 20090220055Abstract: A mammography apparatus is equipped with a radiation source housing unit for housing a radiation source, which irradiates an examinee with radiation, a radiographic image capturing base that detects radiation having passed through the examinee to acquire radiation image information, and a compression plate, which compresses and retains a region to be imaged of the examinee with respect to the image capturing base. Pad members are adhered detachably onto at least a front surface portion of an image capturing base, a front surface portion of a compression plate, and a face guard surface. The pad members have a buffering property for absorbing shocks to the examinee, and a radiation shielding property for suppressing irradiation of X-rays with respect to the examinee.Type: ApplicationFiled: February 27, 2009Publication date: September 3, 2009Applicant: FUJIFILM CORPORATIONInventors: Hajime NAKATA, Yoshiyuki Monma
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Publication number: 20090127471Abstract: An image detecting device (radiation solid-state detecting device) including an image detector (sensor substrate) for recording an image and outputting the recorded image as image information; a temperature regulation control unit for performing a temperature regulation control operation to adjust the image detector to a predetermined temperature; and an image information output detecting unit (timing control signal detector) for detecting the output of the image information from the image detector, and outputting the detected output as an image information output detection signal to the temperature regulation control unit, wherein the temperature regulation control unit halts the temperature regulation control operation on the image detector based on the image information output detection signal that is input thereto.Type: ApplicationFiled: December 23, 2008Publication date: May 21, 2009Applicant: FUJIFILM CorporationInventors: Kuniaki Miyako, Hajime Nakata, Kazuo Hakamata, Yasunori Ohta
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Publication number: 20090101828Abstract: An image detecting device includes an image detector, a temperature regulation controller, an image information output detector, and a timer, wherein the temperature regulation controller stops or relaxes the temperature regulation control operation on the image detector based on the image information output detection signal input thereto from the image information output detector, and resumes or stops relaxing the temperature regulation control operation on the image detector when the timer has measured a preset period of time after the temperature regulation control operation has been stopped or relaxed.Type: ApplicationFiled: December 16, 2008Publication date: April 23, 2009Applicant: FUJIFILM CorporationInventors: Hajime NAKATA, Kuniaki MIYAKO, Kazuo HAKAMATA, Yasunori OHTA
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Publication number: 20090084969Abstract: An image detecting device includes an image detector for recording an image therein and outputting the recorded image as image information, and a cooling panel disposed on a surface of the image detector for cooling the image detector, wherein the cooling panel has a thermal conductivity oriented in a planar direction along the surface of the image detector.Type: ApplicationFiled: September 26, 2008Publication date: April 2, 2009Applicant: FUJIFILM CorporationInventors: Yasunori OHTA, Kazuo Hakamata, Kuniaki Miyako, Hajime Nakata, Yuto Tanaka
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Publication number: 20090086890Abstract: A radiation image capturing apparatus includes a conductive gel member disposed between a radiation detector and an integrated circuit provided in vicinity of the radiation detector and electrically connected thereto. The conductive gel member blocks the electromagnetic noise generated by the integrated circuit and thereby prevents the electromagnetic noise from propagating to the radiation detector. As a result, the electrical signals generated by the radiation detector are prevented from being affected by the electromagnetic noise and high-quality radiation images can be acquired.Type: ApplicationFiled: September 26, 2008Publication date: April 2, 2009Applicant: FUJIFILM CorporationInventors: Kazuo Hakamata, Hajime Nakata, Kuniaki Miyako, Yasunori Ohta, Yuto Tanaka
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Publication number: 20090086928Abstract: An X-ray imaging apparatus is disposed with an imaging table that includes an imaging surface with which a breast of an examinee in an upright posture is brought into contact and handles that are disposed higher than the imaging surface during craniocaudal imaging. Grip portions of the handles slant so as to gradually become closer to a chest wall contacting portion as the grip portions approach the imaging surface. Thus, when an examinee is made to grasp the handles, the posture of the examinee can be made more natural.Type: ApplicationFiled: September 24, 2008Publication date: April 2, 2009Applicant: FUJIFILM CorporationInventors: Hajime NAKATA, Katsumi Hirabayashi
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Publication number: 20090084971Abstract: The present invention relates to a radiation image capturing apparatus, and includes a radiation image information detector for detecting radiation image information of a subject, a casing containing the radiation image information detector, a reading circuit for reading the radiation image information from the radiation image information detector, and a heat release unit for fastening the reading circuit and releasing heat generated by the reading circuit to the casing.Type: ApplicationFiled: September 26, 2008Publication date: April 2, 2009Applicant: FUJIFILM CorporationInventors: Yasunori OHTA, Kazuo Hakamata, Kuniaki Miyako, Hajime Nakata, Yuto Tanaka
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Publication number: 20090086052Abstract: An image detecting device includes an image detector for recording an image therein and outputting the recorded image as image information, a temperature regulation controller for performing a temperature regulation control process in order to adjust the image detector to a predetermined temperature, an image information output detector for detecting the output of the image information from the image detector, and outputting the detected output as an image information output detection signal to the temperature regulation controller, and a timer, wherein the temperature regulation controller stops the temperature regulation control process on the image detector based on the image information output detection signal input thereto, and resumes the temperature regulation control process on the image detector when the timer has measured a preset period of time after the temperature regulation control process has been stopped.Type: ApplicationFiled: September 28, 2008Publication date: April 2, 2009Applicant: FUJIFILM CorporationInventors: Hajime Nakata, Kuniaki Miyako, Kazuo Hakamata, Yasunori Ohta
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Publication number: 20090084970Abstract: A radiation solid-state detecting device includes a cooling panel disposed on a surface of a sensor substrate that is irradiated with radiation, or on a rear surface of the sensor substrate opposite to the irradiated surface thereof. The cooling panel comprises a plurality of cooling units. Cooling units, which face (pixels depending on) the recording areas in which radiation image information is recorded in the sensor substrate, are energized to cool the recording areas.Type: ApplicationFiled: September 26, 2008Publication date: April 2, 2009Applicant: FUJIFILM CorporationInventors: Yasunori OHTA, Kazuo Hakamata, Kuniaki Miyako, Hajime Nakata, Yuto Tanaka
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Publication number: 20090080620Abstract: A radiation image capturing apparatus includes a cooling mechanism for causing cooling medium to flow from a rear surface side to a radiation detector to a front surface side of radiation detector through a narrow space formed between an end of the radiation detector and a casing for housing the radiation detector. It is therefore possible to cool the narrow space, as well as regions in the vicinity of the narrow space, with the cooling medium and to discharge the cooling medium from the front surface side of the radiation detector.Type: ApplicationFiled: September 19, 2008Publication date: March 26, 2009Applicant: FUJIFILM CorporationInventors: Kuniaki Miyako, Hajime Nakata, Kazuo Hakamata, Yasunori Ohta
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Publication number: 20090080605Abstract: An image capturing base that contains a radiation detector includes a housing having a slit serving as an air inlet port formed in the front end side of the housing, which is to be located adjacent to the chest wall of a subject, and a slit serving as an air outlet port formed in the rear end side of the housing adjacent to a pivot shaft. A fan forces air to flow into the housing through the slit, along a detection surface of the radiation detector in a direction from the front end side toward the rear end side, and out of the housing through the slit.Type: ApplicationFiled: September 18, 2008Publication date: March 26, 2009Applicant: FUJIFILM CorporationInventors: Kuniaki Miyako, Hajime Nakata, Kazuo Hakamata, Yasunori Ohta
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Publication number: 20090080606Abstract: A radiation image capturing apparatus includes a housing for housing a radiation detector. The housing has a wall inclined with respect to a detection surface of the radiation detector, and the wall defines a space inclined with respect to the detection surface. The space allows heat transfer medium such as air of relatively high temperatures (higher than that of outside air, for example) to rise along a slope defined by the space. If the region around the detection surface is heated to high temperatures, airflow is generated within the space, forcing the relatively high-temperature heat transfer medium away from the vicinity of the radiation detector, thereby allowing the whole radiation detector to be cooled in a uniform manner.Type: ApplicationFiled: September 24, 2008Publication date: March 26, 2009Applicant: FUJIFILM CorporationInventors: Yasunori Ohta, Kuniaki Miyako, Kazuo Hakamata, Hajime Nakata
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Publication number: 20090078879Abstract: A radiation solid-state detecting device includes a timing control signal detector, which detects the output of a timing control signal from a timing control circuit, and which outputs the detected output to a temperature controller as an image information output detection signal. When the temperature controller is supplied with the image information output detection signal, the temperature controller halts supply of direct current from a DC power supply to Peltier devices, while also stopping a fan from being energized, to thereby temporarily stop a temperature regulation control process from being carried out on a sensor substrate.Type: ApplicationFiled: September 17, 2008Publication date: March 26, 2009Applicant: FUJIFILM CorporationInventors: Kuniaki MIYAKO, Hajime NAKATA, Kazuo HAKAMATA, Yasunori OHTA
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Publication number: 20090072140Abstract: The invention relates to a radiation image capturing apparatus that includes a signal reading circuit for reading an image signal from a sensor substrate. The signal reading circuit includes a charge detecting circuit and a temperature sensor for detecting the temperature of the charge detecting circuit, and controls the gain of a variable gain amplifier of the charge detecting circuit based on the detected temperature.Type: ApplicationFiled: September 9, 2008Publication date: March 19, 2009Applicant: FUJIFILM CORPORATIONInventors: Kuniaki Miyako, Hajime Nakata, Kazuo Hakamata, Yasunori Ohta
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Publication number: 20090022273Abstract: An irradiation dose calculator calculates a pre-exposure-mode-required irradiation dose using the thickness of a breast which measured by a thickness measuring unit, as a parameter, and the irradiation time of a pre-exposure mode is controlled to apply a radiation to the breast in the pre-exposure mode. According to the dose of the radiation detected by a dose detecting sensor in the pre-exposure mode, the irradiation dose calculator calculates a main-exposure-mode-required irradiation dose, and the irradiation time of a main exposure mode is controlled to apply the radiation to the breast in the main exposure mode, thereby capturing a radiation image of the breast.Type: ApplicationFiled: June 5, 2008Publication date: January 22, 2009Applicant: FUJIFILM CORPORATIONInventors: Nobuhiko KASHIWAGI, Hajime Nakata