Patents by Inventor Tomomi Sakamoto
Tomomi Sakamoto 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: 20240071861Abstract: A semiconductor device includes a semiconductor element, a wiring member, a sintered member between a first main electrode of the semiconductor element and the wiring member, and a sealing body. The wiring member includes a base material, a metal film on a face of the base material, and an uneven oxide film. The uneven oxide film includes a thick film portion and a thin film portion. An opposing face of the wiring member opposing the semiconductor element includes a mounting portion to which the first main electrode is bonded, an outer peripheral portion formed with the thick film portion and surrounding the semiconductor element, and an intermediate portion formed with the thin film portion between the mounting portion and the outer peripheral portion. The sintered member overlaps with the mounting portion and the intermediate portion in the plan view, and is in contact with the thin film portion.Type: ApplicationFiled: November 8, 2023Publication date: February 29, 2024Inventors: Ryo KIMURA, Yuji KOJIMA, Takashi SATO, Yoshitsugu SAKAMOTO, Tomomi OKUMURA
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Patent number: 11703028Abstract: A hydroelectric power generation system includes a water turbine, a generator connected to the water turbine, and a controller. The water turbine is arranged in a flow path through which a fluid flows. The controller performs a pressure control by controlling the generator to regulate a pressure of the fluid downstream of the water turbine. The pressure control includes a first control regulating the pressure in parallel with a regenerative operation of the generator, and a second control regulating the pressure in parallel with a power running operation of the generator.Type: GrantFiled: September 22, 2021Date of Patent: July 18, 2023Assignee: Daikin Industries, Ltd.Inventors: Atsushi Suhara, Takahiro Abe, Tomomi Sakamoto
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Publication number: 20220010764Abstract: A hydroelectric power generation system includes a water turbine, a generator connected to the water turbine, and a controller. The water turbine is arranged in a flow path through which a fluid flows. The controller performs a pressure control by controlling the generator to regulate a pressure of the fluid downstream of the water turbine. The pressure control includes a first control regulating the pressure in parallel with a regenerative operation of the generator, and a second control regulating the pressure in parallel with a power running operation of the generator.Type: ApplicationFiled: September 22, 2021Publication date: January 13, 2022Inventors: Atsushi SUHARA, Takahiro ABE, Tomomi SAKAMOTO
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Patent number: 11118558Abstract: A hydraulic power generation system is provided with a control unit which controls the power supply circuit to perform a normal operation of supplying power from the power system to a predetermined electric device provided at the water channel and an autonomous operation of supplying the power generated by the electric generator to the electric device. The control unit executes the autonomous operation when the power system fails.Type: GrantFiled: September 14, 2017Date of Patent: September 14, 2021Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Takahiro Abe, Atsushi Suhara, Tomomi Sakamoto
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Patent number: 11035337Abstract: A hydroelectric generation system includes a fluid machine disposed in a penstock or channel, a generator driven by the fluid machine, and a control unit configured to generate a predetermined torque in the generator. Fluid flows through the penstock or channel. The penstock or channel has a main path in which the fluid machine is disposed, and a detour disposed in parallel with the main path. The detour includes an on-off valve. The on-off valve is opened when not electrified, and closed when electrified.Type: GrantFiled: September 11, 2018Date of Patent: June 15, 2021Assignee: Daikin Industries, Ltd.Inventors: Takahiro Abe, Atsushi Suhara, Yoshiyuki Harada, Tomomi Sakamoto, Yusuke Irino
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Patent number: 10850673Abstract: A storage structure for a vehicle interior includes a hollowed storage unit having an opening in the top of the storage unit. The storage unit includes a storage sidewall section surrounding a storage space for an object to be stored. The storage sidewall section includes a sidewall body portion and a sidewall member formed of a member separate from the sidewall body portion. The sidewall member is configured such that an engaging hook provided for the sidewall member is urged against an engaging recess provided for the sidewall body portion when a load is applied on the sidewall member from an outside to an inside of the storage unit.Type: GrantFiled: September 25, 2018Date of Patent: December 1, 2020Assignees: TS Tech Co., Ltd., Honda Motor Co., Ltd.Inventors: Yoshiyuki Makino, Tomomi Sakamoto, Naoki Takahashi
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Publication number: 20200277929Abstract: A hydroelectric generation system includes a fluid machine disposed in a penstock or channel, a generator driven by the fluid machine, and a control unit configured to generate a predetermined torque in the generator. Fluid flows through the penstock or channel. The penstock or channel has a main path in which the fluid machine is disposed, and a detour disposed in parallel with the main path. The detour includes an on-off valve. The on-off valve is opened when not electrified, and closed when electrified.Type: ApplicationFiled: September 11, 2018Publication date: September 3, 2020Inventors: Takahiro ABE, Atsushi SUHARA, Yoshiyuki HARADA, Tomomi SAKAMOTO, Yusuke IRINO
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Publication number: 20190271291Abstract: A hydraulic power generation system is provided with a control unit which controls the power supply circuit to perform a normal operation of supplying power from the power system to a predetermined electric device provided at the water channel and an autonomous operation of supplying the power generated by the electric generator to the electric device. The control unit executes the autonomous operation when the power system fails.Type: ApplicationFiled: September 14, 2017Publication date: September 5, 2019Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Takahiro ABE, Atsushi SUHARA, Tomomi SAKAMOTO
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Patent number: 10352293Abstract: A control device estimates a flow rate and an effective height difference of a fluid machine based on a characteristic detectable with regard to a rotating electrical machine and correlating with the flow rate and the effective height difference of the fluid machine. A total flow rate in a pipe system is estimated based on these values estimated by the control device and a flow resistance characteristic line, and cooperative control of the fluid machine and the flow rate control valve is performed such that the estimated value of the total flow rate becomes close to a target flow rate of the total flow rate in the pipe system.Type: GrantFiled: October 23, 2015Date of Patent: July 16, 2019Assignee: Daikin Industries, Ltd.Inventors: Tomomi Sakamoto, Atsushi Suhara
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Publication number: 20190092245Abstract: A storage structure for a vehicle interior includes a hollowed storage unit having an opening in the top of the storage unit. The storage unit includes a storage sidewall section surrounding a storage space for an object to be stored. The storage sidewall section includes a sidewall body portion and a sidewall member formed of a member separate from the sidewall body portion. The sidewall member is configured such that an engaging hook provided for the sidewall member is urged against an engaging recess provided for the sidewall body portion when a load is applied on the sidewall member from an outside to an inside of the storage unit.Type: ApplicationFiled: September 25, 2018Publication date: March 28, 2019Inventors: Yoshiyuki MAKINO, Tomomi SAKAMOTO, Naoki TAKAHASHI
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Patent number: 10233942Abstract: A fluid device having a fluid machine and a rotary electric machine includes a fluid machine and a rotary electric machine connected to a rotating shaft of the fluid machine. A cooler is arranged for carrying out liquid-cooling using a fluid of a cooling pipe connecting an upstream portion and a downstream portion of the fluid machine to bypass the fluid machine. The fluid machine and the rotary electric machine are detachably coupled to each other. Hence, the rotary electric machine can enhance the cooling performance for the rotary electric machine and reduce its size, achieving improvements in maintainability and serviceability.Type: GrantFiled: November 20, 2013Date of Patent: March 19, 2019Assignee: Daikin Industries, Ltd.Inventors: Tomomi Sakamoto, Hiroyuki Ikegami, Atsushi Suhara, Yuzou Sawada
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Publication number: 20170314527Abstract: A control device estimates a flow rate and an effective height difference of a fluid machine based on a characteristic detectable with regard to a rotating electrical machine and correlating with the flow rate and the effective height difference of the fluid machine. A total flow rate in a pipe system is estimated based on these values estimated by the control device and a flow resistance characteristic line, and cooperative control of the fluid machine and the flow rate control valve is performed such that the estimated value of the total flow rate becomes close to a target flow rate of the total flow rate in the pipe system.Type: ApplicationFiled: October 23, 2015Publication date: November 2, 2017Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tomomi SAKAMOTO, Atsushi SUHARA
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Publication number: 20150369258Abstract: A fluid device having a fluid machine and a rotary electric machine includes a fluid machine and a rotary electric machine connected to a rotating shaft of the fluid machine. A cooler is arranged for carrying out liquid-cooling using a fluid of a cooling pipe connecting an upstream portion and a downstream portion of the fluid machine to bypass the fluid machine. The fluid machine and the rotary electric machine are detachably coupled to each other. Hence, the rotary electric machine can enhance the cooling performance for the rotary electric machine and reduce its size, achieving improvements in maintainability and serviceability.Type: ApplicationFiled: November 20, 2013Publication date: December 24, 2015Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tomomi SAKAMOTO, Hiroyuki IKEGAMI, Atsushi SUHARA, Yuzou SAWADA
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Patent number: 8616016Abstract: At a time of a heating high-load operation, a harmonic current is flown in an armature winding to induction-heat rare-earth magnets, thus reducing a residual magnetic flux density. Thereby, the number of rotations of a radial gap type motor is improved. The rare-earth magnets are provided near a cooling medium passage extending substantially in parallel with a flow line of a cooling medium, so that the cooling medium recovers heat of the heated rare-earth magnets. At a time of a cooling high-load operation, a greater number of rotations are obtained with respect to the same torque command value, by a field weakening control by means of a current-phase advance.Type: GrantFiled: June 8, 2009Date of Patent: December 31, 2013Assignee: Daikin Industries, Ltd.Inventors: Yoshinari Asano, Tomomi Sakamoto, Nobuyuki Kifuji, Hirofumi Higashi, Shintarou Araki
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Publication number: 20110083467Abstract: At a time of a heating high-load operation, a harmonic current is flown in an armature winding to induction-heat rare-earth magnets, thus reducing a residual magnetic flux density. Thereby, the number of rotations of a radial gap type motor is improved. The rare-earth magnets are provided near a cooling medium passage extending substantially in parallel with a flow line of a cooling medium, so that the cooling medium recovers heat of the heated rare-earth magnets. At a time of a cooling high-load operation, a greater number of rotations are obtained with respect to the same torque command value, by a field weakening control by means of a current-phase advance.Type: ApplicationFiled: June 8, 2009Publication date: April 14, 2011Inventors: Yoshinari Asano, Tomomi Sakamoto, Nobuyuki Kifuji, Hirofumi Higashi, Shintarou Araki
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Patent number: 5811312Abstract: An optical measurement apparatus includes a reaction vessel 2 which is formed in one body with a slab-type optical waveguide 1, and the apparatus adds fine-grains or water soluble dye for absorbing a fluorescent light which is radiated from fluorescent dye, and/or an exciting light so that stray light due to reagent is reduced and the S/N ratio of the optical measurement is improved.Type: GrantFiled: August 30, 1995Date of Patent: September 22, 1998Assignee: Daikin Industries, Ltd.Inventors: Masanori Hasegawa, Tomoaki Ueda, Kazuhisa Shigemori, Kenji Masuda, Masakazu Yoshida, Tomomi Sakamoto
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Patent number: 5538691Abstract: An apparatus for optical measurement is formed as a one-piece molding. The apparatus has a reaction vessel and pre-treatment vessels, at least part of the partitioning wall between the both serves as an optical waveguide body, and a light absorber vessel is formed adjacent the reaction vessel (24). Simplification of the process of manufacture thus is attained. With a light absorber accommodated in the light absorber vessel, (25), reaction components of excitation light and other noise light components that are propagated through the optical waveguide body can be sufficiently attenuated to improve the S/N ratio of the optical measurement.Type: GrantFiled: March 23, 1994Date of Patent: July 23, 1996Assignee: Daikin Industries, Ltd.Inventors: Kaori Tosa, Yoshiyuki Hama, Kouichi Yamamoto, Ryuuji Akiyama, Masakazu Yoshida, Hiroshi Yagi, Kazuhisa Shigemori, Tomomi Sakamoto