Patents by Inventor Tadashi Sano

Tadashi Sano 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).

  • Publication number: 20230322584
    Abstract: A drainage treatment system is applied to receive drainage from a large number of factories and overflow while reducing the size of a storage tank. The drainage from the storage tank is purified by a water treatment device having a combination of solid detergent and liquid regenerant, and includes a solid detergent filtering device that performs a purification operation in which the drainage from the storage tank is transformed into purified water. The regeneration device performs regeneration in which impurities absorbed to the solid detergent filtering device are desorbed; and the treatment facility control device acquires operating plan information to predict the amount of drainage discharge from the factories, and to predict the transition of a physical quantity at each part of the storage tank and the water treatment device associated with the predicted amount of drainage discharge, and controls the timing of operation in accordance with the prediction result.
    Type: Application
    Filed: December 2, 2020
    Publication date: October 12, 2023
    Inventors: Tadashi SANO, U OH
  • Patent number: 11612832
    Abstract: An extracting apparatus includes: a first phase transition section that causes a phase transition of an extraction solvent from a gas to a liquid; a second phase transition section that causes a phase transition of the extraction solvent from a liquid to a gas; a treatment tank that stores a treated material, and receives an inflow of the extraction solvent that has been liquefied in the first phase transition section; a first valve that is provided between the second phase transition section and the treatment tank; and a second valve that is provided between the first phase transition section and the treatment tank. The second phase transition section is connected with a recovery valve.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: March 28, 2023
    Assignee: Hitachi, Ltd.
    Inventors: Tadashi Sano, Sachio Sekiya
  • Patent number: 11364452
    Abstract: Provided is an extraction method for extracting an extract from a mixture using liquefied gas that can dissolve the extract, the method facilitating extraction operations and enabling low cost operation. An extraction device that extracts a component dissolved in liquefied gas from material to be treated using continuous phase changes in the liquefied gas is characterized by being provided with: a compressor that feeds gas under pressure; a heat exchanger for generating liquefied gas by the gas flowing in a high temperature side flow path; a treatment tank into which the material to be treated is loaded and the liquefied gas flows; and a retention tank provided in series or in parallel to the flow path downstream of the high temperature side flow path in the heat exchanger.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: June 21, 2022
    Assignee: HITACHI, LTD.
    Inventors: Tadashi Sano, Toom Miyasaka, Sachio Sekiya
  • Patent number: 11185793
    Abstract: A solid-liquid separating method and system for separating a processing object into solid and liquid, is simplified by using fewer devices. A solid-liquid separating system includes a processing tank that houses a processing object, a first and a second heat exchanger, a material A supplying means, a collecting tank, a closed system including the first and second heat exchangers, a compressor, and an expansion valve, and a material B that circulates while a state is changed in this system. A material A that is gaseous at normal temperature and normal pressure, can dissolve oil when liquefied, and does not dissolve water is gasified in the first heat exchanger while being separated from the oil, is liquefied in the second heat exchanger, and the liquefied material A is supplied to the processing tank by the material A supplying means. The oil is collected in the tank from the first heat exchanger.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: November 30, 2021
    Assignee: HITACHI, LTD.
    Inventors: Tadashi Sano, Mitsuhiro Matsuzawa, Sachio Sekiya
  • Publication number: 20210077919
    Abstract: Provided is an extraction method for extracting an extract from a mixture using liquefied gas that can dissolve the extract, the method facilitating extraction operations and enabling low cost operation. An extraction device that extracts a component dissolved in liquefied gas from material to be treated using continuous phase changes in the liquefied gas is characterized by being provided with: a compressor that feeds gas under pressure; a heat exchanger for generating liquefied gas by the gas flowing in a high temperature side flow path; a treatment tank into which the material to be treated is loaded and the liquefied gas flows; and a retention tank provided in series or in parallel to the flow path downstream of the high temperature side flow path in the heat exchanger.
    Type: Application
    Filed: October 11, 2018
    Publication date: March 18, 2021
    Inventors: Tadashi SANO, Tooru MIYASAKA, Sachio SEKIYA
  • Publication number: 20210016203
    Abstract: An extracting apparatus includes: a first phase transition section that causes a phase transition of an extraction solvent from a gas to a liquid; a second phase transition section that causes a phase transition of the extraction solvent from a liquid to a gas; a treatment tank that stores a treated material, and receives an inflow of the extraction solvent that has been liquefied in the first phase transition section; a first valve that is provided between the second phase transition section and the treatment tank; and a second valve that is provided between the first phase transition section and the treatment tank. The second phase transition section is connected with a recovery valve.
    Type: Application
    Filed: March 7, 2019
    Publication date: January 21, 2021
    Inventors: Tadashi SANO, Sachio SEKIYA
  • Publication number: 20200298142
    Abstract: A solid-liquid separating method and system for separating a processing object into solid and liquid, is simplified by using fewer devices. A solid-liquid separating system includes a processing tank that houses a processing object, a first and a second heat exchanger, a material A supplying means, a collecting tank, a closed system including the first and second heat exchangers, a compressor, and an expansion valve, and a material B that circulates while a state is changed in this system. A material A that is gaseous at normal temperature and normal pressure, can dissolve oil when liquefied, and does not dissolve water is gasified in the first heat exchanger while being separated from the oil, is liquefied in the second heat exchanger, and the liquefied material A is supplied to the processing tank by the material A supplying means. The oil is collected in the tank from the first heat exchanger.
    Type: Application
    Filed: April 13, 2018
    Publication date: September 24, 2020
    Applicant: HITACHI, LTD.
    Inventors: Tadashi SANO, Mitsuhiro MATSUZAWA, Sachio SEKIYA
  • Patent number: 10646794
    Abstract: A solid-liquid separation device performs dehydration or deoiling from a treated object using a substance A that is a gas at normal temperature and pressure and is capable of dissolving water and oil when liquefied. The separation device includes a substance B that circulates while generating phase change in a closed system, a compressor that compresses the substance B, a first heat exchanger that condenses substance B and evaporates of the substance A, an expansion valve that decompresses the condensed substance B, a second heat exchanger that evaporates substance B and condenses substance A, and a treatment tank wherein substance A is mixed with the treated object, substance A is evaporated while separated from the liquid in the first heat exchanger, and condensed in the second heat exchanger. The center of gravity of the first heat exchanger is lower than the second heat exchanger in a vertical direction.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: May 12, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Tadashi Sano, Mitsuhiro Matsuzawa, Sachio Sekiya, Yoko Kokugan
  • Patent number: 10589189
    Abstract: The solid-liquid separator that uses the substance A capable of dissolving water and oil, and performs dehydration and deoiling from an object to be treated by bringing a mixture of water and a solid, oil and a solid, or water, oil and a solid that is an object to be treated, and the substance A in a liquid state into contact with each other, and subsequently evaporating the substance A, includes a substance B that circulates while causing change of state in a closed system, a compressor that compresses the substance B, a first heat exchanger that exchanges condensation heat of the substance B and evaporation heat of the substance A, an expansion valve that decompresses the substance B which is condensed, and a second heat exchanger that exchanges evaporation heat of the substance B and condensation heat of the substance A.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: March 17, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Tadashi Sano, Sachio Sekiya
  • Patent number: 10245527
    Abstract: A solid-liquid separation device performs dehydration/deoiling from a mixture of water and/or oil and a solid. Substance A is capable of dissolving water and oil. The device includes substance B circulated while generating phase change in a closed system; a compressor; a first heat exchanger exchanging condensation heat of substance B and evaporation heat of substance A; a second heat exchanger exchanging evaporation heat of substance B and condensation heat of substance A; and a treatment tank for mixing substance A with an object to be treated; substance A having been evaporated while separated from the water or the oil in the first heat exchanger, and condensed in the second heat exchanger. The first heat exchanger is lower than the treatment tank in a vertical direction, and a connection port of the first heat exchanger and a lower portion of the treatment tank are connected with a flow path.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: April 2, 2019
    Assignee: HITACHI LTD.
    Inventors: Tadashi Sano, Hiroshi Kusumoto, Michiharu Watanabe, Mitsuhiro Matsuzawa
  • Patent number: 10197331
    Abstract: To provide a solid-liquid separation system in which a stable operation can be continuously conducted and the introduction cost and the running cost can be suppressed, in cases where moisture or oil are separated from a substance containing moisture or oil by using changes in phase of a working fluid having a nature of dissolving moisture or oil in a liquid phase.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: February 5, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Yoko Kokugan, Hiroshi Kusumoto, Tadashi Sano, Michiharu Watanabe, Mitsuhiro Matsuzawa
  • Publication number: 20180028935
    Abstract: A solid-liquid separation device performs dehydration/deoiling from a mixture of water and/or oil and a solid. Substance A is capable of dissolving water and oil. The device includes substance B circulated while generating phase change in a closed system; a compressor; a first heat exchanger exchanging condensation heat of substance B and evaporation heat of substance A; a second heat exchanger exchanging evaporation heat of substance B and condensation heat of substance A; and a treatment tank for mixing substance A with an object to be treated; substance A having been evaporated while separated from the water or the oil in the first heat exchanger, and condensed in the second heat exchanger. The first heat exchanger is lower than the treatment tank in a vertical direction, and a connection port of the first heat exchanger and a lower portion of the treatment tank are connected with a flow path.
    Type: Application
    Filed: January 28, 2015
    Publication date: February 1, 2018
    Applicant: HITACHI, LTD.
    Inventors: Tadashi SANO, Hiroshi KUSUMOTO, Michiharu WATANABE, Mitsuhiro MATSUZAWA
  • Publication number: 20180003438
    Abstract: To provide a solid-liquid separation system in which a stable operation can be continuously conducted and the introduction cost and the running cost can be suppressed, in cases where moisture or oil are separated from a substance containing moisture or oil by using changes in phase of a working fluid having a nature of dissolving moisture or oil in a liquid phase.
    Type: Application
    Filed: January 26, 2015
    Publication date: January 4, 2018
    Inventors: Yoko KOKUGAN, Hiroshi KUSUMOTO, Tadashi SANO, Michiharu WATANABE, Mitsuhiro MATSUZAWA
  • Publication number: 20180001226
    Abstract: A solid-liquid separation device performs dehydration or deoiling from a treated object using a substance A that is a gas at normal temperature and pressure and is capable of dissolving water and oil when liquefied. The separation device includes a substance B that circulates while generating phase change in a closed system, a compressor that compresses the substance B, a first heat exchanger that condenses substance B and evaporates of the substance A, an expansion valve that decompresses the condensed substance B, a second heat exchanger that evaporates substance B and condenses substance A, and a treatment tank wherein substance A is mixed with the treated object, substance A is evaporated while separated from the liquid in the first heat exchanger, and condensed in the second heat exchanger. The center of gravity of the first heat exchanger is lower than the second heat exchanger in a vertical direction.
    Type: Application
    Filed: January 23, 2015
    Publication date: January 4, 2018
    Applicant: HITACHI, LTD.
    Inventors: Tadashi SANO, Mitsuhiro MATSUZAWA, Sachio SEKIYA, Yoko KOKUGAN
  • Publication number: 20170088781
    Abstract: Provided is a crude oil recovery device for recovering crude oil from an oil-containing mixture in a stable manner and at low running cost. The crude oil recovery device for extracting crude oil from an oil-containing mixture composed of crude oil and both or one of water and solid, including an extraction tank for mixing the oil-containing mixture with an extracting solvent, and an evaporation/liquefaction unit for distilling an extraction solution after extraction, wherein naphtha, which is a crude oil component of the oil-containing mixture, is reused as the extracting solvent, the naphtha being a distillate obtained by distillation of the extraction solution.
    Type: Application
    Filed: September 23, 2016
    Publication date: March 30, 2017
    Applicant: HITACHI, LTD.
    Inventors: Tadashi SANO, Kazuhiro ENDOH, Yojiro HAYASHI, Hisashi ISOGAMI, Kei HAYASHIDA, Hideaki KUROKAWA, Masatomo WATANABE
  • Publication number: 20160158763
    Abstract: The solid-liquid separator that uses the substance A capable of dissolving water and oil, and performs dehydration and deoiling from an object to be treated by bringing a mixture of water and a solid, oil and a solid, or water, oil and a solid that is an object to be treated, and the substance A in a liquid state into contact with each other, and subsequently evaporating the substance A, includes a substance B that circulates while causing change of state in a closed system, a compressor that compresses the substance B, a first heat exchanger that exchanges condensation heat of the substance B and evaporation heat of the substance A, an expansion valve that decompresses the substance B which is condensed, and a second heat exchanger that exchanges evaporation heat of the substance B and condensation heat of the substance A.
    Type: Application
    Filed: August 2, 2013
    Publication date: June 9, 2016
    Inventors: Tadashi SANO, Sachio SEKIYA
  • Patent number: 9151348
    Abstract: A magnetic brake unit includes an operation unit, a rotating plate placed below the operation unit and coaxially rotating with the operation unit in conjunction with an operation of the operation unit, and an electromagnetic brake that is placed to be in contact with the rotating plate and can magnetically adsorb the rotating plate, in which the rotating plate includes an adsorbed surface in contact with the electromagnetic brake, the electromagnetic brake includes an adsorbing surface in contact with the rotating plate, the electromagnetic brake applies a braking force against a pivoting to the rotating plate when the electromagnetic brake magnetically adsorbs the rotating plate, the rotating plate is pivotable in a state of being in contact with the electromagnetic brake when the electromagnetic brake does not magnetically adsorb the rotating plate, and a polymer material section is formed at least one of the adsorbed surface and the adsorbing surface.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: October 6, 2015
    Assignee: Alps Electric Co., Ltd.
    Inventor: Tadashi Sano
  • Patent number: 8981246
    Abstract: A rear operation body is attached on a rear portion of a front case via a pair of front supporting plate springs. A front operation body is provided in the front case so as to abut on the front case, and the front operation body and the rear operation body are connected via a penetration portion. A rear case is provided in a rearward of the front case, and a rear supporting plate spring is provided in the rear case. A flexible print substrate is superimposed in a frontward of the rear supporting plate spring and a plurality of detection members are mounted on the flexible print substrate. When an operation surface of the front operation body has been pressed, the front supporting plate springs are deformed. Thereby, the rear operation body is moved such that any of the plurality of the detection member is operated.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: March 17, 2015
    Assignee: Alps Electric Co., Ltd.
    Inventor: Tadashi Sano
  • Patent number: 8981247
    Abstract: A rear operation body is attached on a rear portion of a front case via a pair of front supporting plate springs. A front operation body is provided in a frontward of the front case and the front operation body and the rear operation body are connected via a penetration portion. A rear case is provided in a rearward of the front case, and a rear supporting plate spring is provided in the rear case. A flexible print substrate is provided in a frontward thereof and a plurality of detection members are mounted on the flexible print substrate. When an operation surface of the front operation body is pressed, the front supporting plate springs are deformed. Thereby, the rear operation body is moved such that any of the plurality of detection members is operated.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: March 17, 2015
    Assignee: Alps Electric Co., Ltd.
    Inventor: Tadashi Sano
  • Patent number: 8869952
    Abstract: A yoke core of an electromagnetic brake system includes a rotation shaft hole portion through which a rotation shaft is penetrated, and additionally includes an inner yoke portion and an outer yoke portion which are arranged on both inner and outer sides, by pinching a concave groove. A coil is accommodated in the concave groove and a magnetic flux is generated by applying electricity to attract an armature. The armature has a penetrating hole portion in the center, and a protruded shaft portion formed on the inner yoke portion is inserted to the penetrating hole portion. The rotation shaft has one side thereof rotatably supported by a support portion of a housing, and the other side thereof rotatably supported by the protruded shaft portion via the armature and a planetary gear mechanism. Accordingly, it is not necessary to provide bearings or the like.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: October 28, 2014
    Assignee: Alps Electric Co., Ltd.
    Inventor: Tadashi Sano