Patents by Inventor Takahiro Arakawa
Takahiro Arakawa 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: 20240154044Abstract: The present disclosure provides a Schottky barrier diode. The Schottky barrier diode includes: a semiconductor substrate of a first conductivity type; a semiconductor layer of the first conductivity type and having a region of the first conductivity type and an impurity region of the first conductivity type; a first electrode layer; a second electrode layer; a first external terminal electrically connected to the first electrode layer; and a second external terminal electrically connected to the second electrode layer. The first electrode layer includes a first base portion, a first extending portion and a second extending portion. The second electrode layer includes a second base portion and a third extending portion located between the first extending portion and the second extending portion in a second direction.Type: ApplicationFiled: November 1, 2023Publication date: May 9, 2024Inventors: AIKO MIYAZAKI, TAKAHIRO ARAKAWA, TOMOYUKI KAWAKAMI, SATOSHI KOBAYASHI
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Publication number: 20220353150Abstract: A non-transitory computer-readable storage medium storing a network map creation support program that causes a processor included in a computer to execute a process, the process includes calculating, for each of a plurality of nodes, an evaluation value indicating a possibility that the node is connected to a target switch port of a plurality of switches based on information indicating measurement results related to communication data of a network including the plurality of nodes and the plurality of switches, or a coupling environment of the plurality of nodes and the plurality of switches in the network, displaying figures respectively representing the plurality of nodes in descending order of the evaluation value starting from a position nearest to a figure representing the target switch port, and receiving a selection of one of the plurality of nodes as a node to be coupled to the target switch port in a network map.Type: ApplicationFiled: February 9, 2022Publication date: November 3, 2022Applicant: FUJITSU LIMITEDInventors: Tomoaki TAKAHARA, Keiichi Ohmachi, Fumiki NIIOKA, Toshikazu Uchiyama, Katsuhiko Shioya, Takahiro ARAKAWA
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Patent number: 11293905Abstract: A plurality of ultrasonic transducers of the invented probe are separated in a concentric circle pattern, separated in rows that are orthogonal to a reference line L that passes through the center of circles, and positioned line symmetrically with respect to the reference line L. The detection surface of the invented probe has a circular shape having the diameter D, and has a plurality of segments divided into a plurality of arc-shaped portions that are symmetrical with respect to the reference line L. Further a controller which has a plurality of control channels for controlling pairs of the line symmetrical ultrasonic transducers under the same conditions is provided.Type: GrantFiled: March 14, 2018Date of Patent: April 5, 2022Assignee: IHI INSPECTION AND INSTRUMENTATION CO., LTD.Inventors: Shintaro Fukumoto, Hiraku Kawasaki, Takahiro Arakawa
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Publication number: 20210361224Abstract: There is provided a biological gas measurement device that continuously collects biological gas, and is able to immediately and chronologically measure a target substance from the collected biological gas. A skin gas measurement device includes a biological gas collector 10 having an aperture portion 11 in a side thereof that faces a living body, and having a recessed portion 12 that is connected with the aperture portion 11 and serves as a space for collecting biological gas, a measurement device 100 that measures a target substance in the biological gas collected by the biological gas collector 10, an outflow path 40 through which collected biological gas is discharged from the recessed portion 12 to the measurement device 100, and a correction device 124 that corrects measurements of the target substance performed by the measurement device 100, and enables measurement results of the target substance from which effects of moisture present inside the outflow path 40 have been excluded to be output.Type: ApplicationFiled: November 22, 2018Publication date: November 25, 2021Applicant: National University Corporation Tokyo Medical and Dental UniversityInventors: Kohji MITSUBAYASHI, Takahiro ARAKAWA, Koji TOMA, Takuma SUZUKI, Kenta IITANI
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Patent number: 10957803Abstract: A bidirectional Zener diode includes a substrate, a first conductivity type base region formed at a front surface portion of the substrate, a second conductivity type first impurity region formed at the base region, a second conductivity type second impurity region formed at the base region away from the first impurity region, an insulating layer formed on a front surface of the substrate, a first electrode film formed on the insulating layer and electrically connected to the first impurity region, and a second electrode film formed on the insulating layer and electrically connected to the second impurity region, and a first region formed on the insulating layer, the first region being sandwiched between the first electrode film and the second electrode film, and the first region including a portion having an aspect ratio of 1 or larger.Type: GrantFiled: July 12, 2019Date of Patent: March 23, 2021Assignee: ROHM CO., LTD.Inventors: Takahiro Arakawa, Junya Yamagami
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Publication number: 20200116672Abstract: A plurality of ultrasonic transducers of the invented probe are separated in a concentric circle pattern, separated in rows that are orthogonal to a reference line L that passes through the center of circles, and positioned line symmetrically with respect to the reference line L. The detection surface of the invented probe has a circular shape having the diameter D, and has a plurality of segments divided into a plurality of arc-shaped portions that are symmetrical with respect to the reference line L. Further a controller which has a plurality of control channels for controlling pairs of the line symmetrical ultrasonic transducers under the same conditions is provided.Type: ApplicationFiled: March 14, 2018Publication date: April 16, 2020Applicant: IHI Inspection and Instrumentation Co., Ltd.Inventors: Shintaro FUKUMOTO, Hiraku KAWASAKI, Takahiro ARAKAWA
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Publication number: 20200027997Abstract: A bidirectional Zener diode includes a substrate, a first conductivity type base region formed at a front surface portion of the substrate, a second conductivity type first impurity region formed at the base region, a second conductivity type second impurity region formed at the base region away from the first impurity region, an insulating layer formed on a front surface of the substrate, a first electrode film formed on the insulating layer and electrically connected to the first impurity region, and a second electrode film formed on the insulating layer and electrically connected to the second impurity region, and a first region formed on the insulating layer, the first region being sandwiched between the first electrode film and the second electrode film, and the first region including a portion having an aspect ratio of 1 or larger.Type: ApplicationFiled: July 12, 2019Publication date: January 23, 2020Applicant: ROHM CO., LTD.Inventors: Takahiro ARAKAWA, Junya YAMAGAMI
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Patent number: 10345268Abstract: An ultrasonic transmitter 3 attached to an inspecting target object 1, an ultrasonic receiver 5 receiving a reflected wave of the ultrasonic wave that has propagated from the ultrasonic transmitter 3 in the inspecting target object, a data processing device 7 acquiring position specifying data for specifying a position of a defect 1a in the inspecting target object 1 on the basis of received data representing a waveform of the reflected wave received by the ultrasonic receiver 5 are provided. The ultrasonic wave generated by the ultrasonic transmitter 3 has been frequency-modulated, and has a waveform composed of components of respective frequencies that are deviated from a resonance frequency of the ultrasonic transmitter 3 and the ultrasonic receiver 5. The data processing device 7 includes a pulse compressing unit 21 performing pulse compression on the received data, and acquires the position specifying data on the basis of the pulse-compressed received data.Type: GrantFiled: February 19, 2015Date of Patent: July 9, 2019Assignee: IHI Inspection and Instrumentation Co., Ltd.Inventors: Hiraku Kawasaki, Tatsuya Hikichi, Saburou Shibata, Hideyuki Nakamura, Takahiro Arakawa
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Patent number: 10066264Abstract: The present invention is to provide a method for analyzing a target nucleic acid, by which the target nucleic acid can be analyzed rapidly and easily. In order to achieve the above object, the present invention provides a method for analyzing a target nucleic acid in a sample, including the step of: analyzing the target nucleic acid in the sample by bringing the sample into contact with a label and with a primer or probe that can hybridize to the target nucleic acid. The primer or probe is immobilized on a solid phase. The label does not emit light when the primer or probe does not hybridize to the target nucleic acid, whereas the label emits light when the primer or probe has hybridized to the target nucleic acid. The analysis is carried out by detecting the light emitted from the label.Type: GrantFiled: August 29, 2013Date of Patent: September 4, 2018Assignee: KABUSHIKI KAISHA DNAFORMInventors: Yoshihide Hayashizaki, Masayoshi Itoh, Takahiro Arakawa, Kengo Usui, Sotaro Uemura, Yasumasa Mitani
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Publication number: 20170206143Abstract: A management apparatus includes a determination unit configured to determine a relationship state between a plurality of snapshots, a setting unit configured to set importance level information for each snapshot on the basis of the relationship state determined, and a deletion processing unit configured to preferentially delete a snapshot of which importance level information is the lowest, so that a snapshot of which importance level is low can be easily determined from among the plurality of snapshots.Type: ApplicationFiled: January 16, 2017Publication date: July 20, 2017Applicant: FUJITSU LIMITEDInventors: Keiichi Ohmachi, TSUYOSHI OKUMURA, Takahiro ARAKAWA, DAISUKE HOSHI, Mai Izawa, Yuhei Nomura
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Publication number: 20150160167Abstract: An ultrasonic transmitter 3 attached to an inspecting target object 1, an ultrasonic receiver 5 receiving a reflected wave of the ultrasonic wave that has propagated from the ultrasonic transmitter 3 in the inspecting target object, a data processing device 7 acquiring position specifying data for specifying a position of a defect 1a in the inspecting target object 1 on the basis of received data representing a waveform of the reflected wave received by the ultrasonic receiver 5 are provided. The ultrasonic wave generated by the ultrasonic transmitter 3 has been frequency-modulated, and has a waveform composed of components of respective frequencies that are deviated from a resonance frequency of the ultrasonic transmitter 3 and the ultrasonic receiver 5. The data processing device 7 includes a pulse compressing unit 21 performing pulse compression on the received data, and acquires the position specifying data on the basis of the pulse-compressed received data.Type: ApplicationFiled: February 19, 2015Publication date: June 11, 2015Inventors: Hiraku KAWASAKI, Tatsuya HIKICHI, Saburou SHIBATA, Hideyuki NAKAMURA, Takahiro ARAKAWA
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Publication number: 20150152496Abstract: The present invention is to provide a method for analyzing a target nucleic acid, by which the target nucleic acid can be analyzed rapidly and easily. In order to achieve the above object, the present invention provides a method for analyzing a target nucleic acid in a sample, including the step of: analyzing the target nucleic acid in the sample by bringing the sample into contact with a label and with a primer or probe that can hybridize to the target nucleic acid. The primer or probe is immobilized on a solid phase. The label does not emit light when the primer or probe does not hybridize to the target nucleic acid, whereas the label emits light when the primer or probe has hybridized to the target nucleic acid. The analysis is carried out by detecting the light emitted from the label.Type: ApplicationFiled: August 29, 2013Publication date: June 4, 2015Inventors: Yoshihide Hayashizaki, Masayoshi Itoh, Takahiro Arakawa, Kengo Usui, Sotaro Uemura, Yasumasa Mitani
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Patent number: 8741779Abstract: A plasma processing apparatus for processing an object to be processed using a plasma. The apparatus includes a processing chamber defining a processing cavity for containing an object to be processed and a process gas therein, a microwave radiating antenna having a microwave radiating surface for radiating a microwave in order to excite a plasma in the processing cavity, and a dielectric body provided so as to be opposed to the microwave radiating surface, in which the distance D between the microwave radiating surface and a surface of the dielectric body facing away from the microwave radiating surface, which is represented with the wavelength of the microwave being a distance unit, is determined to be in the range satisfying the inequality 0.7×n/4?D?1.3×n/4 (n being a natural number).Type: GrantFiled: July 17, 2013Date of Patent: June 3, 2014Assignees: ROHM Co., Ltd.Inventors: Tadahiro Ohmi, Kazuhide Ino, Takahiro Arakawa
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Publication number: 20130346363Abstract: Disclosed is a data synchronization method which includes acquiring first update data for an update process performed on a first database, converting the first update data into second update data according to a format of a second database based on a previously set conversion definition information, deciding a lock range based on the first update data and the pre-update data that has not been subjected to the update process, locking the first and second databases based on the decided lock range, and updating the first and second databases using the first and second update data, respectively.Type: ApplicationFiled: August 8, 2013Publication date: December 26, 2013Applicant: FUJITSU LIMITEDInventors: Takahiro ARAKAWA, Takashi Matsuda
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Publication number: 20130302918Abstract: A plasma processing apparatus for processing an object to be processed using a plasma. The apparatus includes a processing chamber defining a processing cavity for containing an object to be processed and a process gas therein, a microwave radiating antenna having a microwave radiating surface for radiating a microwave in order to excite a plasma in the processing cavity, and a dielectric body provided so as to be opposed to the microwave radiating surface, in which the distance D between the microwave radiating surface and a surface of the dielectric body facing away from the microwave radiating surface, which is represented with the wavelength of the microwave being a distance unit, is determined to be in the range satisfying the inequality 0.7×n/4?D?1.3×n/4 (n being a natural number).Type: ApplicationFiled: July 17, 2013Publication date: November 14, 2013Inventors: Tadahiro OHMI, Kazuhide Ino, Takahiro Arakawa
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Patent number: 8513137Abstract: A plasma processing apparatus for processing an object to be processed using a plasma. The apparatus includes a processing chamber defining a processing cavity for containing an object to be processed and a process gas therein, a microwave radiating antenna having a microwave radiating surface for radiating a microwave in order to excite a plasma in the processing cavity, and a dielectric body provided so as to be opposed to the microwave radiating surface, in which the distance D between the microwave radiating surface and a surface of the dielectric body facing away from the microwave radiating surface, which is represented with the wavelength of the microwave being a distance unit, is determined to be in the range satisfying the inequality 0.7×n/4?D?1.3×n/4 (n being a natural number).Type: GrantFiled: September 14, 2012Date of Patent: August 20, 2013Assignees: Rohm Co., Ltd., Tadahiro OhmiInventors: Tadahiro Ohmi, Kazuhide Ino, Takahiro Arakawa
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Patent number: 8414782Abstract: A process for producing a fluorocarbon microstructure capable of easily fabricating a three-dimensional fluorocarbon microstructure. The process for producing a fluorocarbon microstructure comprises a first processing step for forming, on a substrate (2), a film deposition portion with a given pattern made up of a through-hole figure by etching the substrate (2), a fabricating step for forming a fluorocarbon film (6) on an inner circumferential surface of a film deposition portion (9) to fabricate a fluorocarbon region surrounded by the fluorocarbon film (6), and a second processing step for fabricating the fluorocarbon microstructure protruding from a processing surface of the substrate (2) by etching a given region other than a fluorocarbon region on the substrate (2). Hence, the three-dimensional fluorocarbon microstructure can be fabricated which comprises a complicated structure that has conventionally been hard to fabricate.Type: GrantFiled: January 21, 2008Date of Patent: April 9, 2013Assignee: Waseda UniversityInventors: Takahiro Arakawa, Hiroyuki Kusakawa, Shuichi Shoji
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Publication number: 20130017686Abstract: A plasma processing apparatus for processing an object to be processed using a plasma. The apparatus includes a processing chamber defining a processing cavity for containing an object to be processed and a process gas therein, a microwave radiating antenna having a microwave radiating surface for radiating a microwave in order to excite a plasma in the processing cavity, and a dielectric body provided so as to be opposed to the microwave radiating surface, in which the distance D between the microwave radiating surface and a surface of the dielectric body facing away from the microwave radiating surface, which is represented with the wavelength of the microwave being a distance unit, is determined to be in the range satisfying the inequality 0.7×n/4?D?1.3×n/4 (n being a natural number).Type: ApplicationFiled: September 14, 2012Publication date: January 17, 2013Applicant: ROHM CO., LTD.Inventors: Tadahiro OHMI, Kazuhide INO, Takahiro ARAKAWA
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Patent number: 8308897Abstract: A plasma processing apparatus for processing an object to be processed using a plasma. The apparatus includes a processing chamber defining a processing cavity for containing an object to be processed and a process gas therein, a microwave radiating antenna having a microwave radiating surface for radiating a microwave in order to excite a plasma in the processing cavity, and a dielectric body provided so as to be opposed to the microwave radiating surface, in which the distance D between the microwave radiating surface and a surface of the dielectric body facing away from the microwave radiating surface, which is represented with the wavelength of the microwave being a distance unit, is determined to be in the range satisfying the inequality 0.7×n/4?D?1.3×n/4 (n being a natural number).Type: GrantFiled: May 25, 2001Date of Patent: November 13, 2012Assignees: Rohm Co., Ltd.Inventors: Tadahiro Ohmi, Kazuhide Ino, Takahiro Arakawa
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Patent number: 7899792Abstract: A first code-format converting unit extracts data from database management apparatuses that manage databases having same contents, and converts a code format of the extracted data into a common code format. A mismatch-resolving-data generating unit generates mismatch-resolving data for resolving a data mismatch between the database management apparatuses, from the data with the code format converted. A second code-format converting unit converts a code format of the generated mismatch-resolving data into a code format corresponding to the databases. A database updating unit reflects the mismatch-resolving data with the code format converted to the databases.Type: GrantFiled: September 19, 2006Date of Patent: March 1, 2011Assignee: Fujitsu LimitedInventors: Katsushi Wakiyama, Takahiro Arakawa