Patents by Inventor Koichi Tanabe
Koichi Tanabe 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: 20200158662Abstract: This X-ray phase contrast imaging apparatus (100) includes an X-ray source (1), a first grating (3) that forms a self-image, a second grating (4), a detector (5) that detects X-rays, an adjustment mechanism (6), and a controller (7) that controls the adjustment mechanism (6) to adjust a misalignment of the first grating (3) or a misalignment of the second grating (4) based on Moire fringes detected by the detector (5).Type: ApplicationFiled: July 10, 2017Publication date: May 21, 2020Inventors: Akira HORIBA, Koichi TANABE, Toshinori YOSHIMUTA, Kenji KIMURA, Hiroyuki KISHIHARA, Yukihisa WADA, Takuro IZUMI, Taro SHIRAI, Takahiro DOKI, Satoshi SANO, Takayoshi SHIMURA, Heiji WATANABE, Takuji HOSOI
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Publication number: 20190343472Abstract: An X-ray phase contrast imaging device of the present invention can change an arrangement pitch of slits related to a multi-slit and an arrangement pitch of phase shift sections related to a phase grating. A positional relationship among the multi-slit 3b, the phase grating, and an FPD is determined based on the arrangement pitch of the slits related to the multi-slit, the arrangement pitch of the phase shift sections related to the phase grating, and an arrangement pitch of detection elements related to the FPD. Among these arrangement pitches, by changing the arrangement pitch of the slits and the arrangement pitch of the phase shift sections, the present invention can change the positional relationship among the multi-slit, the phase grating, and the FPD.Type: ApplicationFiled: July 28, 2017Publication date: November 14, 2019Inventors: Satoshi SANO, Koichi TANABE, Toshinori YOSHIMUTA, Kenji KIMURA, Hiroyuki KISHIHARA, Yukihisa WADA, Takuro IZUMI, Taro SHIRAI, Takahiro DOKI, Akira HORIBA, Takayoshi SHIMURA, Heiji WATANABE, Takuji HOSOI
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Patent number: 10469458Abstract: An e-mail sending-receiving system that enables to ensure security at the time of sending and receiving an e-mail including an attached file encrypted and to improve convenience. In an e-mail sending terminal, a first storing unit stores a password in a storage medium in association with a receiving-side mail address, an encryption unit encrypts a file attached to an e-mail so as to be decodable using the password, a generation unit generates the e-mail by attaching the file encrypted, and a sending unit sends the e-mail to the receiving-side mail address. In an e-mail receiving-side terminal, a second storing unit stores the password in the storage medium in association with a sending-side mail address, a reception unit receives the e-mail, and a decoding unit decodes the encrypted file using the password stored in association with the sending-side mail address of the e-mail received.Type: GrantFiled: March 13, 2017Date of Patent: November 5, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Koichi Tanabe, Akihiro Hamana
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Patent number: 10441234Abstract: An X-ray phase-contrast imaging device capable of easily performing imaging of an object using X-rays of plural energies is provided. The disclosed exemplary configuration includes an X-ray source of a dual energy output type, and an FPD having a high energy X-ray detection surface and a low energy X-ray detection surface so that two types of imaging, imaging by high energy X-ray and imaging by low energy X-ray, can be performed. By imaging so as to scan the object while changing the relative position of the imaging system and the object, two types of imaging can be completed at once.Type: GrantFiled: June 15, 2017Date of Patent: October 15, 2019Assignee: Shimadzu CorporationInventors: Koichi Tanabe, Shingo Furui, Hiroyuki Kishihara, Kenji Kimura, Taro Shirai, Takahiro Doki, Satoshi Sano, Akira Horiba
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Patent number: 10393890Abstract: In an X-ray imaging device according to a first embodiment, an X-ray detector has a configuration in which scintillator elements are defined by light-shielding walls in a lattice shape. Among X-rays incident on the X-ray detector, X-rays incident on the light-shielding walls are not converted into scintillator light and are transmitted by the X-ray detector. Accordingly, by causing X-rays to be incident on the X-ray detector in which the scintillator elements are defined by the light-shielding walls in a lattice shape, an area in which X-rays 3a transmitted by a subject M are incident on the X-ray detector can be limited to an arbitrary range. Accordingly, since a detection mask can be omitted in the X-ray imaging device which is used for EI-XPCi, it is possible to reduce a manufacturing cost of the X-ray imaging device.Type: GrantFiled: March 1, 2016Date of Patent: August 27, 2019Assignee: SHIMADZU CORPORATIONInventors: Koichi Tanabe, Shingo Furui, Toshinori Yoshimuta, Kenji Kimura, Akihiro Nishimura, Taro Shirai, Takahiro Doki, Satoshi Sano, Akira Horiba, Toshiyuki Sato
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Patent number: 10365235Abstract: Provided is a radiation phase-contrast imaging device capable of assuredly detecting a self-image and precisely imaging the internal structure of an object. According to the configuration of the present invention, the longitudinal direction of a detection surface of a flat panel detector is inclined with respect to the extending direction of an absorber in a phase grating. This causes variations in the position (phase) of a projected stripe pattern of a self-image at different positions on the detection surface. This is therefore expected to produce the same effects as those obtainable when a plurality of self-images are obtained by performing imaging a plurality of times in such a manner that the position of the projected self-images on the detection surface varies. This alone, however, results in a single self-image phase for a specific region of the object.Type: GrantFiled: November 20, 2015Date of Patent: July 30, 2019Assignee: Shimadzu CorporationInventors: Koichi Tanabe, Shingo Furui, Hiroyuki Kishihara, Kenji Kimura, Taro Shirai, Takahiro Doki, Satoshi Sano, Akira Horiba
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Patent number: 10335109Abstract: Provided is a radiation phase difference imaging apparatus in which a separation distance between a phase grating and a radiation detector is optimized. The separation distance between the phase grating and a detection surface of an FPD is determined based on the magnitude of noise corruption in a self-image projected onto the detection surface. The magnitude of the effect of the noise is used as a basis for assessing the separation distance. It is determined whether a distance Zd is appropriate for imaging, based on the magnitude of noise corruption in the self-image in a self-image picture which is obtained when the distance Zd is the distance between the phase grating and the detection surface of the FPD. The separation distance can thus be optimized based on actual conditions of an actual X-ray source that emits a plurality of types of X-rays.Type: GrantFiled: March 6, 2015Date of Patent: July 2, 2019Assignee: Shimadzu CorporationInventors: Satoshi Sano, Toshiyuki Sato, Koichi Tanabe, Shingo Furui, Toshinori Yoshimuta, Hiroyuki Kishihara, Takahiro Doki, Akira Horiba
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Publication number: 20190175126Abstract: Provided is a radiation imaging apparatus capable of performing precise imaging without performing pre-imaging in the absence of a subject. According to the present invention, it is possible to provide a radiation imaging apparatus capable of performing precise imaging without performing pre-imaging in the absence of a subject immediately before. That is, the apparatus of the present invention is provided with a phase grating 5 provided with a subject area and a reference area. Both areas each have a predetermined pattern that absorbs radiation, but the patterns are different from each other. In this area, an image of the phase grating 5 is observed in a moire pattern of a long period.Type: ApplicationFiled: March 15, 2017Publication date: June 13, 2019Inventors: Koichi TANABE, Toshinori YOSHIMUTA, Kenji KIMURA, Hiroyuki KISHIHARA, Yukihisa WADA, Takuro IZUMI, Taro SHIRAI, Takahiro DOKI, Satoshi SANO, Akira HORIBA
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Publication number: 20190167219Abstract: This X-ray phase contrast imaging apparatus (100) includes an X-ray source (1) that radiates continuous X-rays, a first grating (3) that forms a self-image, a second grating (4), a detector (5) that detects the continuous X-rays, and a third grating (2) arranged between the detector (5) and the first grating 3. The first grating (3), the second grating (4), and the third grating (2) are arranged so as to satisfy conditions of predetermined formulas.Type: ApplicationFiled: July 10, 2017Publication date: June 6, 2019Inventors: Satoshi SANO, Koichi TANABE, Toshinori YOSHIMUTA, Kenji KIMURA, Hiroyuki KISHIHARA, Yukihisa WADA, Takuro IZUMI, Taro SHIRAI, Takahiro DOKI, Akira HORIBA, Takayoshi SHIMURA, Heiji WATANABE, Takuji HOSOI
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Patent number: 10295678Abstract: A X-ray detector having enhanced X-ray sensitivity, which enables dual energy imaging having high diagnostic performance. This X-ray detector includes: scintillator elements which are partitioned by light blocking walls and which convert low-energy X-rays to light; and scintillator elements which are partitioned by light blocking walls and which convert high-energy X-rays to light. When seen from the direction of incidence of the X-rays, the positional pattern of the light blocking walls and that of the light blocking walls are configured so as not to be in alignment with each other. Accordingly, the X-rays incident on the X-ray detector are converted to light by at least either one of the scintillator elements and are finally outputted as X-ray detection signals.Type: GrantFiled: January 26, 2016Date of Patent: May 21, 2019Assignee: Shimadzu CorporationInventors: Koichi Tanabe, Shingo Furui, Toshinori Yoshimuta, Kenji Kimura, Akihiro Nishimura, Taro Shirai, Takahiro Doki, Satoshi Sano, Akira Horiba, Toshiyuki Sato
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Patent number: 10276276Abstract: A movable collimator is realized with a simple mechanism in a radiation phase-contrast image capturing device. A collimator is integrated with a multi-slit or a phase grating to provide a simpler device configuration. In some examples, the collimator and the multi-slit or phase grating may be configured to move while still providing image capturing.Type: GrantFiled: January 26, 2018Date of Patent: April 30, 2019Assignee: Shimadzu CorporationInventors: Akira Horiba, Shingo Furui, Koichi Tanabe, Toshinori Yoshimuta, Kenji Kimura, Hiroyuki Kishihara, Takahiro Doki, Satoshi Sano
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Publication number: 20190056336Abstract: [PROBLEM TO BE SOLVED] To provide a radiation phase contrast imaging device having a small device configuration [SOLVING MEANS] The present invention focused on the findings that the distance between the phase grating 5 and the FPD 4 does not need to be the Talbot distance. The distance between the phase grating 5 and the FPD 4 can be more freely set. However, a self-image cannot be detected unless the self-image is sufficiently magnified with respect to the phase grating 5. The degree on how much the self-image is magnified on the FPD 4 with respect to the original phase grating 5 is determined by a magnification ratio X2/X1. Therefore, in the present invention, the magnification ratio is set to be the same as the magnification ratio in a conventional configuration. With this, even if the distance X2 between the radiation source 3 and the FPD 4 is reduced, a situation in which the self-image cannot be detected by the FPD 4 due to the excessively small size thereof does not occur.Type: ApplicationFiled: February 22, 2017Publication date: February 21, 2019Applicants: SHIMADZU CORPORATION, OSAKA UNIVERSITYInventors: Takahiro DOKI, Koichi TANABE, Toshinori YOSHIMUTA, Kenji KIMURA, Akihiro NISHIMURA, Taro SHIRAI, Satoshi SANO, Akira HORIBA, Takayoshi SHIMURA, Heiji WATANABE, Takuji HOSOI
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Publication number: 20180364182Abstract: An X-ray phase-contrast imaging device capable of easily performing imaging of an object using X-rays of plural energies is provided. The disclosed exemplary configuration includes an X-ray source of a dual energy output type, and an FPD having a high energy X-ray detection surface and a low energy X-ray detection surface so that two types of imaging, imaging by high energy X-ray and imaging by low energy X-ray, can be performed. By imaging so as to scan the object while changing the relative position of the imaging system and the object, two types of imaging can be completed at once.Type: ApplicationFiled: June 15, 2017Publication date: December 20, 2018Inventors: Koichi TANABE, Shingo FURUI, Hiroyuki KISHIHARA, Kenji KIMURA, Taro SHIRAI, Takahiro DOKI, Satoshi SANO, Akira HORIBA
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Publication number: 20180306735Abstract: The X-ray phase imaging apparatus includes a position switching mechanism for switching a relative position of one or more gratings between a retreated position which is an outside of a detection range on a detection surface of an image signal detector and a detection positon which is an inside of the detection range on the detection surface of the image signal detector and a focal diameter changing unit configured to change a focal diameter of the X-ray source in conjunction with switching of the relative position of the one or more gratings.Type: ApplicationFiled: April 20, 2018Publication date: October 25, 2018Inventors: Koichi TANABE, Kenji KIMURA, Toshinori YOSHIMUTA, Taro SHIRAI, Takahiro DOKI, Satoshi SANO, Akira HORIBA, Naoki MORIMOTO
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Publication number: 20180279972Abstract: In an X-ray imaging device according to a first embodiment, an X-ray detector has a configuration in which scintillator elements are defined by light-shielding walls in a lattice shape. Among X-rays incident on the X-ray detector, X-rays incident on the light-shielding walls are not converted into scintillator light and are transmitted by the X-ray detector. Accordingly, by causing X-rays to be incident on the X-ray detector in which the scintillator elements are defined by the light-shielding walls in a lattice shape, an area in which X-rays 3a transmitted by a subject M are incident on the X-ray detector can be limited to an arbitrary range. Accordingly, since a detection mask can be omitted in the X-ray imaging device which is used for EI-XPCi, it is possible to reduce a manufacturing cost of the X-ray imaging device.Type: ApplicationFiled: March 1, 2016Publication date: October 4, 2018Applicant: SHIMADZU CORPORATIONInventors: Koichi TANABE, Shingo FURUI, Toshinori YOSHIMUTA, Kenji KIMURA, Akihiro NISHIMURA, Taro SHIRAI, Takahiro DOKI, Satoshi SANO, Akira HORIBA, Toshiyuki SATO
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Patent number: 9985150Abstract: A graphite substrate is processed to have surface unevenness in a range of 1 ?m to 8 ?m. Thereby, a semiconductor film to be laminated on the graphite substrate has a stable film quality, and thus adhesion of the graphite substrate and the semiconductor layer can be enhanced. When an electron blocking layer is interposed between the graphite substrate and the semiconductor layer, the electron blocking layer is thin and thus the surface unevenness of the graphite substrate is transferred onto the electron blocking layer. Consequently, the electron blocking layer also has surface unevenness approximately in such range. Thus, almost the same effect as a configuration in which the semiconductor layer is directly connected to the graphite substrate can be produced.Type: GrantFiled: February 21, 2011Date of Patent: May 29, 2018Assignee: SHIMADZU CORPORATIONInventors: Toshinori Yoshimuta, Satoshi Tokuda, Koichi Tanabe, Hiroyuki Kishihara, Masatomo Kaino, Akina Yoshimatsu, Toshiyuki Sato, Shoji Kuwabara
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Publication number: 20180059882Abstract: An information processing apparatus that starts editing of a photobook without waiting for completion of uploading all image data items, and prevents results of editing already performed from being affected by image data items uploaded later. A book editing apparatus performs a layout process for laying out layout objects on pages. The book editing apparatus receives the layout objects. A CPU additionally displays each layout object in an upload image area whenever the layout object is received. The CPU decides page layout patterns for laying out the layout objects on the pages based on attribute information of the layout objects. Whenever each page layout pattern is decided, the CPU lays out associated layout objects on associated pages according to the decided layout pattern, and additionally displays them in a layout area different from the upload image area.Type: ApplicationFiled: August 21, 2017Publication date: March 1, 2018Inventor: Koichi Tanabe
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Publication number: 20180052240Abstract: A X-ray detector having enhanced X-ray sensitivity, which enables dual energy imaging having high diagnostic performance. This X-ray detector includes: scintillator elements which are partitioned by light blocking walls and which convert low-energy X-rays to light; and scintillator elements which are partitioned by light blocking walls and which convert high-energy X-rays to light. When seen from the direction of incidence of the X-rays, the positional pattern of the light blocking walls and that of the light blocking walls are configured so as not to be in alignment with each other. Accordingly, the X-rays incident on the X-ray detector are converted to light by at least either one of the scintillator elements and are finally outputted as X-ray detection signals.Type: ApplicationFiled: January 26, 2016Publication date: February 22, 2018Applicant: SHIMADZU CORPORATIONInventors: Koichi Tanabe, Shingo Furui, Toshinori Yoshimuta, Kenji Kimura, Akihiro Nishimura, Taro Shirai, Takahiro Doki, Satoshi Sano, Akira Horiba, Toshiyuki Sato
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Publication number: 20180042571Abstract: Provided is a radiation phase difference imaging apparatus in which a separation distance between a phase grating and a radiation detector is optimized. The separation distance between the phase grating and a detection surface of an FPD is determined based on the magnitude of noise corruption in a self-image projected onto the detection surface. The magnitude of the effect of the noise is used as a basis for assessing the separation distance. It is determined whether a distance Zd is appropriate for imaging, based on the magnitude of noise corruption in the self-image in a self-image picture which is obtained when the distance Zd is the distance between the phase grating and the detection surface of the FPD. The separation distance can thus be optimized based on actual conditions of an actual X-ray source that emits a plurality of types of X-rays.Type: ApplicationFiled: March 6, 2015Publication date: February 15, 2018Applicant: Shimadzu CorporationInventors: Satoshi SANO, Toshiyuki SATO, Koichi TANABE, Shingo FURUI, Toshinori YOSHIMUTA, Hiroyuki KISHIHARA, Takahiro DOKI, Akira HORIBA
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Publication number: 20170343486Abstract: Provided is a radiation phase-contrast imaging device capable of assuredly detecting a self-image and precisely imaging the internal structure of an object. According to the configuration of the present invention, the longitudinal direction of a detection surface of a flat panel detector is inclined with respect to the extending direction of an absorber in a phase grating. This causes variations in the position (phase) of a projected stripe pattern of a self-image at different positions on the detection surface. This is therefore expected to produce the same effects as those obtainable when a plurality of self-images are obtained by performing imaging a plurality of times in such a manner that the position of the projected self-images on the detection surface varies. This alone, however, results in a single self-image phase for a specific region of the object.Type: ApplicationFiled: November 20, 2015Publication date: November 30, 2017Inventors: Koichi TANABE, Shingo FURUI, Hiroyuki KISHIHARA, Kenji KIMURA, Taro SHIRAI, Takahiro DOKI, Satoshi SANO, Akira HORIBA