Patents by Inventor Mizuho Doi
Mizuho Doi 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: 20230309478Abstract: A culturing device is equipped with an accommodation unit, and a convection generating unit provided in the accommodation unit. In the accommodation unit, microalgae are cultured while the convection generating unit generates convection in the culturing solution in the accommodation unit. During the culturing, a portion of the culturing solution is drawn in through collection pipes by the pump. Thereafter, the culturing solution that was drawn in is discharged from the collection pipes into the culturing solution inside the accommodation unit.Type: ApplicationFiled: March 29, 2023Publication date: October 5, 2023Inventors: Minoru Goto, Nozomi Shiobara, Shohei Kinoshita, Mizuho Doi, Kenji Machida, Satoshi Shiozaki
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Publication number: 20230279445Abstract: A mixed gas generated in a methane fermentation tank is supplied to culture tanks. In the culture tanks, water as a culture solution is held and algae are cultured. Carbon dioxide contained in the mixed gas preferentially dissolves in water. That is, carbon dioxide is removed from the mixed gas. As a result, a concentration of methane, which is one component of the mixed gas, increases. The mixed gas is re-supplied to another culture tank or the same culture tank.Type: ApplicationFiled: February 27, 2023Publication date: September 7, 2023Inventors: Minoru Goto, Nozomi Shiobara, Shohei Kinoshita, Mizuho Doi, Kenji Machida, Satoshi Shiozaki
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Publication number: 20230159884Abstract: A culture device by which microalgae can be satisfactorily cultured using a simple structure while suppressing an increase in energy consumption, and a culture method. A main body of this culture device comprises an accommodation part which accommodates contents and to which gas is supplied. The inner wall faces of the accommodation part are joined together to form a joined part which extends along the gas supply direction. A guide part and a circulation part, which are adjacent to each other across the joined part, are each along the extending direction of the joined part and communicated with each other via a guide part inlet and a guide part outlet. A gas supply port enables gas supply toward the guide part.Type: ApplicationFiled: March 24, 2021Publication date: May 25, 2023Inventors: Minoru Goto, Nozomi Shiobara, Shohei Kinoshita, Mizuho Doi, Kenji Machida
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Publication number: 20230115516Abstract: Provided are a culture apparatus and a culture method with which microalgae can be cultured satisfactorily. The culture apparatus includes a plurality of culture tanks and a water storage tank, and cultures microalgae in a culture solution. Each of the plurality of culture tanks has a translucent accommodating portion containing the culture solution and microalgae. The volumes of the accommodating portions of the plurality of culture tanks are different from each other. The water storage tank has a translucent water storage unit for storing a stored water. The plurality of culture tanks are selectively arranged in the water storage unit.Type: ApplicationFiled: March 24, 2021Publication date: April 13, 2023Inventors: Shohei Kinoshita, Nozomi Shiobara, Kenji Machida, Minoru Goto, Mizuho Doi
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Publication number: 20230114259Abstract: The present invention can: efficiently and readily produce glucose from microalgae that accumulate starch in their cells; and obtain ethanol. During a preparation step of the glucose production method, microalgae are prepared on which a saccharifying enzyme acts on starch accumulated inside the microalgae cells, without disrupting the cell walls. In a saccharification step, starch inside the cells is saccharified and glucose is generated, by adding a saccharifying enzyme to the microalgae without a disruption treatment. The ethanol production method has a step in which, after the saccharification step, the glucose undergoes alcoholic fermentation and ethanol is generated.Type: ApplicationFiled: March 24, 2021Publication date: April 13, 2023Inventors: Nozomi Shiobara, Shohei Kinoshita, Mizuho Doi, Kenji Machida, Minoru Goto
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Publication number: 20220312705Abstract: In a culturing method, microalgae are cultured in a culturing solution while a gas containing carbon dioxide is supplied to the culturing solution. In an ion concentration acquisition step, an acquired value of a concentration of hydrogen carbonate ions in the culturing solution is obtained. In an ion concentration adjustment step, in the case that the acquired value does not reside within a set concentration range that is set beforehand, at least one of a temperature or a pH of the culturing solution is adjusted, whereby the concentration of hydrogen carbonate ions in the culturing solution is adjusted to reside within the set concentration range.Type: ApplicationFiled: February 28, 2022Publication date: October 6, 2022Inventors: Minoru Goto, Nozomi Shiobara, Shohei Kinoshita, Fumitomo Takano, Mizuho Doi, Satoshi Shiozaki, Kenji Machida
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Patent number: 7966897Abstract: A plating apparatus includes a plating tank for storing a plating liquid, and applies a magnetic alloy plating to a shaft-shaped member immersed in the plating liquid by using the shaft-shaped member as a cathode. The plating apparatus further includes a rotable member configured to rotate the shaft-shaped member as a rotary shaft; annular shielding tools mounted on the outer peripheral surface of the shaft-shaped member; a plating liquid discharge nozzle including plating liquid discharge ports which are provided to face the shaft-shaped member so as to avoid the shielding tools; and an anode provided around the shaft-shaped member and the plating liquid discharge nozzle.Type: GrantFiled: August 22, 2007Date of Patent: June 28, 2011Assignee: Honda Motor Co., Ltd.Inventors: Nobuhiko Yoshimoto, Hitoshi Karasawa, Koji Kobayashi, Mizuho Doi, Hitoshi Harata
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Patent number: 7661324Abstract: This magnetostrictive torque sensor 10 includes a rotating shaft 11 used to rotate according to an input torque and provided with magnetostrictive films 14A and 14B, an excitation coil 12 configured to apply an alternating magnetic field 31 to the magnetostrictive film, and detection coils 13A and 13B each of which detects a change in the magnetic characteristic of an associated one of the magnetostrictive films.Type: GrantFiled: June 20, 2008Date of Patent: February 16, 2010Assignee: Honda Motor Co., Ltd.Inventors: Hitoshi Harata, Yuichi Fukuda, Yukiya Kashimura, Mizuho Doi
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Patent number: 7621368Abstract: For forming an annular magnetostrictive coat on an outer peripheral surface of a rotational shaft associated with a magnetostrictive torque sensor, a magnetostrictive-coat forming method comprises a step of fitting a cylindrical masking jig over the outer peripheral surface of the rotational shaft and securing the masking jig to the outer peripheral surface, a step of placing the rotational shaft in a plating tank to thereby form the magnetostrictive coat by plating on the outer peripheral surface, and a step of detaching the masking jig from the rotational shaft.Type: GrantFiled: November 7, 2007Date of Patent: November 24, 2009Assignee: Honda Motor Co., Ltd.Inventors: Yasuo Shimizu, Yoshito Nakamura, Shunichiro Sueyoshi, Nobuhiko Yoshimoto, Koji Kobayashi, Yuichi Fukuda, Mizuho Doi, Hitoshi Harada, Tomohiro Hoshi
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Publication number: 20090229380Abstract: A plating apparatus includes a plating tank for storing a plating liquid, and applies a magnetic alloy plating to a shaft-shaped member immersed in the plating liquid by using the shaft-shaped member as a cathode. The plating apparatus further includes a routable member configured to rotate the shaft-shaped member as a rotary shaft; annular shielding tools mounted on the outer peripheral surface of the shaft-shaped member; a plating liquid discharge nozzle including plating liquid discharge ports which are provided to face the shaft-shaped member so as to avoid the shielding tools; and an anode provided around the shaft-shaped member and the plating liquid discharge nozzle.Type: ApplicationFiled: August 22, 2007Publication date: September 17, 2009Applicant: Honda Motor Co., Ltd.Inventors: Nobuhiko Yoshimoto, Hitoshi Karasawa, Koji Kobayashi, Mizuho Doi, Hitoshi Harata
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Patent number: 7497132Abstract: A magnetostrictive torque sensor comprising a first magnetostrictive film, a second magnetostrictive film, and a third magnetostrictive film formed over the entire circumferential periphery of a surface of a rotating shaft. A first sensor coil, a second sensor coil, and a third sensor coil for sensing changes in impedance are provided for the first, second, and third magnetostrictive films, respectively. Signals according to the changes in impedance outputted from the first through third sensor coils are inputted to a torque calculating unit. The torque calculating unit calculates the torque applied to the rotating shaft on the basis of the output signal from the first sensor coil and the output signal from the second sensor coil. Furthermore, the output signals from the first through third sensor coils are compared, and failures in the first magnetostrictive film or the second magnetostrictive film are detected by a failure detector.Type: GrantFiled: October 4, 2006Date of Patent: March 3, 2009Assignee: Honda Motor Co., Ltd.Inventors: Hitoshi Harata, Mizuho Doi, Hitoshi Karasawa, Tomohiro Hoshi, Yukiya Kashimura
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Publication number: 20080314163Abstract: This magnetostrictive torque sensor 10 includes a rotating shaft 11 used to rotate according to an input torque and provided with magnetostrictive films 14A and 14B, an excitation coil 12 configured to apply an alternating magnetic field 31 to the magnetostrictive film, and detection coils 13A and 13B each of which detects a change in the magnetic characteristic of an associated one of the magnetostrictive films.Type: ApplicationFiled: June 20, 2008Publication date: December 25, 2008Applicant: Honda Motor Co., Ltd.Inventors: Hitoshi HARATA, Yuichi FUKUDA, Yukiya KASHIMURA, Mizuho DOI
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Publication number: 20080257635Abstract: For forming an annular magnetostrictive coat on an outer peripheral surface of a rotational shaft associated with a magnetostrictive torque sensor, a magnetostrictive-coat forming method comprises a step of fitting a cylindrical masking jig over the outer peripheral surface of the rotational shaft and securing the masking jig to the outer peripheral surface, a step of placing the rotational shaft in a plating tank to thereby form the magnetostrictive coat by plating on the outer peripheral surface, and a step of detaching the masking jig from the rotational shaft.Type: ApplicationFiled: November 7, 2007Publication date: October 23, 2008Applicant: HONDA MOTOR CO., LTD.Inventors: Yasuo Shimizu, Yoshito Nakamura, Shunichiro Sueyoshi, Nobuhiko Yoshimoto, Koji Kobayashi, Yuichi Fukuda, Mizuho Doi, Hitoshi Harada, Tomohiro Hoshi
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Patent number: 7386930Abstract: For forming an annular magnetostrictive coat on an outer peripheral surface of a rotational shaft associated with a magnetostrictive torque sensor, a magnetostrictive coat forming method comprises a step of fitting a cylindrical masking jig over the outer peripheral surface of the rotational shaft and securing the masking jig to the outer peripheral surface, a step of placing the rotational shaft in a plating tank to thereby form the magnetostrictive coat by plating on the outer peripheral surface, and a step of detaching the masking jig from the rotational shaft.Type: GrantFiled: November 7, 2007Date of Patent: June 17, 2008Assignee: Honda Motor Co., Ltd.Inventors: Yasuo Shimizu, Yoshito Nakamura, Shunichiro Sueyoshi, Nobuhiko Yoshimoto, Koji Kobayashi, Yuichi Fukuda, Mizuho Doi, Hitoshi Harada, Tomohiro Hoshi
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Publication number: 20080066295Abstract: For forming an annular magnetostrictive coat on an outer peripheral surface of a rotational shaft associated with a magnetostrictive torque sensor, a magnetostrictive-coat forming method comprises a step of fitting a cylindrical masking jig over the outer peripheral surface of the rotational shaft and securing the masking jig to the outer peripheral surface, a step of placing the rotational shaft in a plating tank to thereby form the magnetostrictive coat by plating on the outer peripheral surface, and a step of detaching the masking jig from the rotational shaft.Type: ApplicationFiled: November 7, 2007Publication date: March 20, 2008Applicant: HONDA MOTOR CO., LTDInventors: Yasuo Shimizu, Yoshito Nakamura, Shunichiro Sueyoshi, Nobuhiko Yoshimoto, Koji Kobayashi, Yuichi Fukuda, Mizuho Doi, Hitoshi Harada, Tomohiro Hoshi
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Patent number: 7310870Abstract: For forming an annular magnetostrictive coat on an outer peripheral surface of a rotational shaft associated with a magnetostrictive torque sensor, a magnetostrictive-coat forming method comprises a step of fitting a cylindrical masking jig over the outer peripheral surface of the rotational shaft and securing the masking jig to the outer peripheral surface, a step of placing the rotational shaft in a plating tank to thereby form the magnetostrictive coat by plating on the outer peripheral surface, and a step of detaching the masking jig from the rotational shaft.Type: GrantFiled: May 12, 2004Date of Patent: December 25, 2007Assignee: Honda Motor Co., Ltd.Inventors: Yasuo Shimizu, Yoshito Nakamura, Shunichiro Sueyoshi, Nobuhiko Yoshimoto, Koji Kobayashi, Yuichi Fukuda, Mizuho Doi, Hitoshi Harada, Tomohiro Hoshi
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Publication number: 20070089538Abstract: A method for manufacturing a magnetostrictive torque sensor compriseis the steps of forming magnetostrictive films on a rotating shaft of a magneto-strictive torque sensor, creating magnetic anisotropy in the magnetostrictive films formed in the magnetostrictive film formation step, and demagnetizing the rotating shaft. The demagnetization step is provided in any of the stages after the magnetostrictive film formation step, and comprises initializing the remanent magnetism created in the rotating shaft.Type: ApplicationFiled: October 2, 2006Publication date: April 26, 2007Inventors: Yukiya Kashimura, Mizuho Doi, Hitoshi Harata, Yuichi Fukuda, Nobuhiko Yoshimoto
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Publication number: 20070074589Abstract: A magnetostrictive torque sensor comprising a first magnetostrictive film, a second magnetostrictive film, and a third magnetostrictive film formed over the entire circumferential periphery of a surface of a rotating shaft. A first sensor coil, a second sensor coil, and a third sensor coil for sensing changes in impedance are provided for the first, second, and third magnetostrictive films, respectively. Signals according to the changes in impedance outputted from the first through third sensor coils are inputted to a torque calculating unit. The torque calculating unit calculates the torque applied to the rotating shaft on the basis of the output signal from the first sensor coil and the output signal from the second sensor coil. Furthermore, the output signals from the first through third sensor coils are compared, and failures in the first magnetostrictive film or the second magnetostrictive film are detected by a failure detector.Type: ApplicationFiled: October 4, 2006Publication date: April 5, 2007Inventors: Hitoshi Harata, Mizuho Doi, Hitoshi Karasawa, Tomohiro Hoshi, Yukiya Kashimura
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Publication number: 20040226384Abstract: For forming an annular magnetostrictive coat on an outer peripheral surface of a rotational shaft associated with a magnetostrictive torque sensor, a magnetostrictive-coat forming method comprises a step of fitting a cylindrical masking jig over the outer peripheral surface of the rotational shaft and securing the masking jig to the outer peripheral surface, a step of placing the rotational shaft in a plating tank to thereby form the magnetostrictive coat by plating on the outer peripheral surface, and a step of detaching the masking jig from the rotational shaft.Type: ApplicationFiled: May 12, 2004Publication date: November 18, 2004Applicant: HONDA MOTOR CO., LTD.Inventors: Yasuo Shimizu, Yoshito Nakamura, Shunichiro Sueyoshi, Nobuhiko Yoshimoto, Koji Kobayashi, Yuichi Fukuda, Mizuho Doi, Hitoshi Harada, Tomohiro Hoshi
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Patent number: 5945601Abstract: A very small and economical acceleration sensor which can detect acting acceleration with high sensitivity and high accuracy by precisely processing a semiconductor substrate and the like by using the photoengraving technique in a semiconductor manufacturing process to accurately form the elements themselves such as a sensor case, a cavity, a heater, a temperature-sensing resistor element, and a heat-type temperature-sensing resistor element, and the relative placement of each element. One embodiment of the acceleration sensor can detect acceleration acting from any of the three-dimensional directions.Type: GrantFiled: February 9, 1998Date of Patent: August 31, 1999Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Takashi Hosoi, Satoshi Hiyama, Sukeyuju Shinotuka, Mizuho Doi, Hiroshi Yamakawa, Nariaki Kuriyama, Tomoyuki Nishio, Atsushi Inaba, Nobuhiro Fueki