Patents by Inventor Ryota Murai
Ryota Murai 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: 20230105626Abstract: The semiconductor device includes a mesa diode structure(20) and a protective layer(17b). The mesa diode structure includes, from bottom to top, a P-type semiconductor layer(11), a first N-type semiconductor layer(12), and a second N-type semiconductor layer(13) having a higher impurity concentration than the first N-type semiconductor layer. The protective layer is arranged on a side wall around the mesa diode structure seen in a plane. Specifically, the protective layer is arranged on an upper side surface(11c) of the P-type semiconductor layer and on side surfaces(12a,13a) of the first N-type semiconductor layer and the second N-type semiconductor layer, but is not arranged on a lower side surface of the P-type semiconductor layer. A bevel angle(30) of a PN junction plane between the P-type semiconductor layer and the first N-type semiconductor layer to the upper side surface of the P-type semiconductor layer is set to 85 to 120 degrees.Type: ApplicationFiled: April 27, 2022Publication date: April 6, 2023Inventors: Koji ITO, Atsushi OGASAWARA, Ryota MURAI
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Publication number: 20220323898Abstract: An exhaust gas treatment method by which mercury contained in exhaust gas can be separated and removed efficiently and inexpensively. The method includes cooling an exhaust gas containing mercury in metal vapor phase by spraying water or other methods to condense mercury in the exhaust gas from metal vapor phase into metal liquid and thus to separate and remove mercury from the exhaust gas. When the exhaust gas is cooled by spraying water, the sprayed water is collected and separated into separated water and a solid containing mercury that has condensed to metal liquid, and mercury is recovered from the solid. The metal mercury particles that have condensed to metal liquid are dispersed in cooling water. The metal mercury particles can thus be easily separated and recovered by using a suitable separation device.Type: ApplicationFiled: August 13, 2020Publication date: October 13, 2022Applicant: JFE STEEL CORPORATIONInventors: Ryota MURAI, Goro OKUYAMA, Shunsuke OURA, Reo FUJIMURA, Tomomichi NAKAMURA, Shinichi SUEJIMA
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Publication number: 20220220404Abstract: A low-sulfur coal production method having an excellent desulfurization effect includes bringing coal into contact with a chemical material that is a mixed solution of hydrogen peroxide and acetic anhydride to remove sulfur in the coal. It is preferred that the molar ratio of the acetic anhydride to the hydrogen peroxide is 0.5 to 12.0 inclusive. It is preferred that the acetic anhydride is mixed with the hydrogen peroxide before the chemical material is brought into contact with the coal and the chemical material is brought into contact with the coal after 10 minutes or more has elapsed since the mixing.Type: ApplicationFiled: April 20, 2020Publication date: July 14, 2022Applicant: JFE STEEL CORPORATIONInventors: Ryota MURAI, Ikuhiro SUMI, Katsuyasu SUGAWARA, Takahiro KATO
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Publication number: 20220204880Abstract: A method for producing low-sulfur coal having an excellent desulfurization effect. In the production method, coal is brought into contact with a chemical agent that is a mixed solution of hydrogen peroxide and acetic acid to remove sulfur in the coal. It is preferred that the molar ratio of the acetic acid to the hydrogen peroxide ((acetic acid)/(hydrogen peroxide)) is 1.2 to 60.0 inclusive. It is preferred that the acetic acid is mixed with the hydrogen peroxide before the chemical agent is brought into contact with the coal and the chemical agent is brought into contact with the coal after 30 minutes or more has elapsed since the mixing is performed.Type: ApplicationFiled: April 20, 2020Publication date: June 30, 2022Applicant: JFE STEEL CORPORATIONInventors: Ryota MURAI, Ikuhiro SUMI, Katsuyasu SUGAWARA, Takahiro KATO
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Patent number: 10694905Abstract: A hand dryer device includes nozzles to blow airflows into a hand-placeable drying portion, a blower to generate the airflow to be blown out of the nozzles, a sensor having a light-emitting element to detect the presence or absence of a hand in the drying portion, and a controller to make a hand detection determination of whether the hand is present or absent in the drying portion based on a detection result of the sensor, and control driving of the blower based on a determination result of the hand detection determination. The controller controls an intermittent driving of the light-emitting element of the sensor. In first and second driving cycles of the sensor, when a determination result in the first driving cycle and a first determination result in the second driving cycle differ from each other, the controller extends a driving period of the sensor in the second driving cycle.Type: GrantFiled: July 14, 2015Date of Patent: June 30, 2020Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Ryota Murai, Tatsuya Fujimura, Ryoji Mori
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Patent number: 10349792Abstract: A hand dryer that includes a capacitance-detection-type proximity sensor structure that detects a capacitance generated in a capacitance detection electrode to detect a presence or absence of an object to be detected, includes a plurality of capacitance-detection-type proximity sensor structures. While one of the capacitance-detection-type proximity sensor structures is in operation, an operation of at least another of the capacitance-detection-type proximity sensor structures is stopped to operate the capacitance-detection-type proximity sensor structures during different periods of time.Type: GrantFiled: February 27, 2014Date of Patent: July 16, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Koichiro Homma, Ryoji Mori, Ryota Murai, Tatsuya Fujimura
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Publication number: 20180343550Abstract: A non-transitory computer-readable storage medium storing a program that causes a computer to execute a process, the process including specifying, upon a reception of sensor data and identification information of a sensor having detected the sensor data, sensor data associated with the received identification information of the sensor by referring to a storage device storing sensor data acquired by another information processing device in association with identification information of a sensor having detected the stored sensor data, comparing the received sensor data with the specified sensor data, and determining whether to transmit the received sensor data based on a result of the comparing.Type: ApplicationFiled: May 22, 2018Publication date: November 29, 2018Applicant: FUJITSU LIMITEDInventor: Ryota Murai
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Publication number: 20180199769Abstract: A hand dryer device includes nozzles to blow airflows into a hand-placeable drying portion, a blower to generate the airflow to be blown out of the nozzles, a sensor having a light-emitting element to detect the presence or absence of a hand in the drying portion, and a controller to make a hand detection determination of whether the hand is present or absent in the drying portion based on a detection result of the sensor, and control driving of the blower based on a determination result of the hand detection determination. The controller controls an intermittent driving of the light-emitting element of the sensor. In first and second driving cycles of the sensor, when a determination result in the first driving cycle and a first determination result in the second driving cycle differ from each other, the controller extends a driving period of the sensor in the second driving cycle.Type: ApplicationFiled: July 14, 2015Publication date: July 19, 2018Applicant: Mitsubishi Electric CorporationInventors: Ryota MURAI, Tatsuya FUJIMURA, Ryoji MORI
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Patent number: 9751068Abstract: The present invention provides a target substance transfer method, a crystal production method, a composition production method, and a target substance transfer device, which allow the concentration of a target substance to be increased easily and effectively. The target substance transfer method is a method for transferring a target substance 103 from a first phase 101 that is a liquid or solid phase containing the target substance 103 to a second phase 102 including: a phase approximation step of bringing the first phase 101 and the second phase 102 into close proximity; and a bubble collapse step of forming bubbles in the vicinity of a boundary between the first phase 101 and the second phase 102 and then causing the bubbles to collapse.Type: GrantFiled: January 18, 2012Date of Patent: September 5, 2017Assignee: Osaka UniversityInventors: Yusuke Mori, Tsuyoshi Inoue, Kazufumi Takano, Hiroyoshi Matsumura, Hiroaki Adachi, Shigeru Sugiyama, Ryota Murai, Masateru Kurata, Hiroshi Yoshikawa, Mihoko Hirao, Satoshi Nakayama, Yoshinori Takahashi, Satoshi Murakami
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Publication number: 20170007081Abstract: A hand dryer that includes a capacitance-detection-type proximity sensor structure that detects a capacitance generated in a capacitance detection electrode to detect a presence or absence of an object to be detected, includes a plurality of capacitance-detection-type proximity sensor structures. While one of the capacitance-detection-type proximity sensor structures is in operation, an operation of at least another of the capacitance-detection-type proximity sensor structures is stopped to operate the capacitance-detection-type proximity sensor structures during different periods of time.Type: ApplicationFiled: February 27, 2014Publication date: January 12, 2017Applicant: Mitsubishi Electric CorporationInventors: Koichiro HOMMA, Ryoji MORI, Ryota MURAI, Tatsuya FUJIMURA
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Publication number: 20130299099Abstract: The present invention provides a target substance transfer method, a crystal production method, a composition production method, and a target substance transfer device, which allow the concentration of a target substance to be increased easily and effectively. The target substance transfer method is a method for transferring a target substance 103 from a first phase 101 that is a liquid or solid phase containing the target substance 103 to a second phase 102 including: a phase approximation step of bringing the first phase 101 and the second phase 102 into close proximity; and a bubble collapse step of forming bubbles in the vicinity of a boundary between the first phase 101 and the second phase 102 and then causing the bubbles to collapse.Type: ApplicationFiled: January 18, 2012Publication date: November 14, 2013Applicant: OSAKA UNIVERSITYInventors: Yusuke Mori, Tsuyoshi Inoue, Kazufumi Takano, Hiroyoshi Matsumura, Hiroaki Adachi, Shigeru Sugiyama, Ryota Murai, Masateru Kurata, Hiroshi Yoshikawa, Mihoko Hirao, Satoshi Nakayama, Yoshinori Takahashi, Satoshi Murakami
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Patent number: 6230634Abstract: A method of blowing a synthetic resin material into a furnace comprising preparing a synthetic resin material having an average specific surface area of at least 50 m2/kg; and blowing the synthetic resin material from tuyeres of a shaft furnace for ironmaking.Type: GrantFiled: January 21, 2000Date of Patent: May 15, 2001Assignee: NKK CorporationInventors: Iwao Okochi, Mitsuhiro Fujii, Minoru Asanuma, Tatsuro Ariyama, Michitaka Sato, Ryota Murai, Yukihiko Asakawa, Koichi Tomioka, Hiroki Ishiguro, Yutuka Yamada, Kazumasa Wakimoto
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Patent number: 6053962Abstract: Disclosed herein is a scrap melting process for the production of molten iron from scrap (as the source of iron) and of high-calorie exhaust gas (as a valuable fuel gas) from pulverized coal (as the principal source of heat and a partial source of high-calorie exhaust gas) and waste plastics (as the principal source of high-calorie exhaust gas and a partial source of heat). The process comprises charging a shaft furnace (equipped with a burner at the tuyere) with scrap (as the iron source) and coke and optional waste plastics from the furnace top and injecting pulverized coal (or pulverized coal plus waste plastics) and oxygen through the burner under specific conditions, so as to mix together pulverized coal (or pulverized coal plus waste plastics) and oxygen, thereby achieving rapid combustion of pulverized coal etc.Type: GrantFiled: August 11, 1997Date of Patent: April 25, 2000Assignee: NKK CorporationInventors: Tatsuro Ariyama, Takanori Inoguchi, Hidetoshi Noda, Masahiro Matsuura, Tsutomu Shikada, Takeshi Konishi, Ryota Murai
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Patent number: 5992335Abstract: A method for blowing a synthetic resin material into a furnace which comprises processing film-shaped synthetic resins into a first granular resin material; crushing non-film-shaped synthetic resins into a second granular resin material; pneumatically feeding the first granular resin material and the second granular resin material to a furnace; and blowing the first and second granular resin material into the furnace.Type: GrantFiled: March 13, 1997Date of Patent: November 30, 1999Assignee: NKK CorporationInventors: Hiromi Nakamura, Iwao Okochi, Mitsuhiro Fujii, Atsushi Yamaguchi, Minoru Asanuma, Tatsuro Ariyama, Michitaka Sato, Ryota Murai, Tsuneo Nagaoka, Tetsuo Akashi, Kenichi Tezuka, Yukihiko Asakawa, Koichi Tomioka, Hiroki Ishiguro, Yutuka Yamada, Kazumasa Wakimoto, Hideaki Tsukiji