Patents by Inventor Hisao Nagashima

Hisao Nagashima 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).

  • Patent number: 11335922
    Abstract: An energy conversion system includes an energy converter, a cold generator, and a liquid water obtainer. The energy converter is configured to convert energy of a source from one form to another form and generate heat and water vapor. The cold generator is configured to generate cold using the heat generated by the energy converter. The liquid water obtainer is configured to condense the water vapor using the cold to obtain liquid water. Accordingly, the water vapor generated from the energy converter can be cooled efficiently. Therefore, efficiency in obtaining the liquid water can be improved compared with a case where the water vapor is cooled by open air.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: May 17, 2022
    Assignees: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuya Fuse, Kazutoshi Kuwayama, Hisao Nagashima, Kazutoshi Nishinakamura, Manabu Orihashi, Masakatsu Tsubouchi
  • Publication number: 20200127305
    Abstract: An energy conversion system includes an energy converter, a cold generator, and a liquid water obtainer. The energy converter is configured to convert energy of a source from one form to another form and generate heat and water vapor. The cold generator is configured to generate cold using the heat generated by the energy converter. The liquid water obtainer is configured to condense the water vapor using the cold to obtain liquid water. Accordingly, the water vapor generated from the energy converter can be cooled efficiently. Therefore, efficiency in obtaining the liquid water can be improved compared with a case where the water vapor is cooled by open air.
    Type: Application
    Filed: December 17, 2019
    Publication date: April 23, 2020
    Inventors: Takuya FUSE, Kazutoshi KUWAYAMA, Hisao NAGASHIMA, Kazutoshi NISHINAKAMURA, Manabu ORIHASHI, Masakatsu TSUBOUCHI
  • Patent number: 10591189
    Abstract: An adsorption core has (i) a heat medium tube in which a heat medium flows and (ii) an adsorption agent that adsorbs a fluid in a vapor phase outside of the heat medium tube when being cooled by the heat medium and desorbs the absorbed fluid when being heated. The heat medium tube has (i) a core member that is made of metal having a higher hardness with respect to copper and (ii) a covering layer that is made of copper and covers an outer surface of the core member. A sintered body of a copper powder and the adsorption agent is provided in a peripheral portion of the heat medium tube. The copper powder and the heat medium tube are metallically coupled with each other. Accordingly, stiffness of the heat medium tube can be higher while improving a heat transfer performance between the heat medium tube and the adsorption agent.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: March 17, 2020
    Assignee: DENSO CORPORATION
    Inventors: Shinsuke Takeuchi, Akira Yanagida, Yoshiyuki Okamoto, Hisao Nagashima
  • Patent number: 10539344
    Abstract: An adsorber includes: a closed container in which an adsorption medium is included; an adsorption part that is provided in the closed container and includes an adsorbent, which adsorbs and desorbs the adsorption medium; and an evaporation/condensation part that is provided in the closed container and that exchanges heat between the adsorption medium and a heat exchanging medium, which is supplied from outside of the closed container, to evaporate and condense the adsorption medium. The evaporation/condensation part includes a heat transfer part that transfers heat of the heat exchanging medium to the adsorption medium. The heat transfer part is capable of holding the adsorption medium, an amount of which is capable of being adsorbed by the adsorbent of the adsorption part.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: January 21, 2020
    Assignee: DENSO CORPORATION
    Inventors: Shinsuke Takeuchi, Hisao Nagashima, Yoshiyuki Okamoto
  • Patent number: 10408509
    Abstract: In an adsorber, a sintered body, which is formed by sintering metal powder particles, is joined to an outer surface of a heat medium tube, in which heat medium flows. An adsorbent is held by the sintered body. A groove is formed in an outer surface of the heat medium tube, and a groove is formed in an inner surface of the heat medium tube.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: September 10, 2019
    Assignee: DENSO CORPORATION
    Inventors: Shinsuke Takeuchi, Hisao Nagashima
  • Patent number: 10101066
    Abstract: An adsorber includes: a heat-medium pipe through which a heat medium flows; an adsorbent layer having an adsorbent that adsorbs a vapor-phase refrigerant located outside the heat-medium pipe by being cooled by the heat medium, and further desorbs the adsorbed refrigerant by being heated; and a heat-transfer member that transfers heat between the heat-medium pipe and the adsorbent. In the adsorber in which the heat-transfer member and the adsorbent are integrally formed, an adsorbent filling ratio ? is set at 70% or less when the adsorbent filling ratio ? is defined as a value obtained by dividing a filling density ? of the adsorbent filled in the adsorbent layer by a true density ?abs of particles of the adsorbent. For example, the adsorber may be suitably used for an adsorption refrigerator.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: October 16, 2018
    Assignee: DENSO CORPORATION
    Inventors: Shinsuke Takeuchi, Akira Yanagida, Yoshiyuki Okamoto, Hisao Nagashima
  • Publication number: 20170328606
    Abstract: An adsorber includes: a closed container in which an adsorption medium is included; an adsorption part that is provided in the closed container and includes an adsorbent, which adsorbs and desorbs the adsorption medium; and an evaporation/condensation part that is provided in the closed container and that exchanges heat between the adsorption medium and a heat exchanging medium, which is supplied from outside of the closed container, to evaporate and condense the adsorption medium. The evaporation/condensation part includes a heat transfer part that transfers heat of the heat exchanging medium to the adsorption medium. The heat transfer part is capable of holding the adsorption medium, an amount of which is capable of being adsorbed by the adsorbent of the adsorption part.
    Type: Application
    Filed: October 8, 2015
    Publication date: November 16, 2017
    Inventors: Shinsuke TAKEUCHI, Hisao NAGASHIMA, Yoshiyuki OKAMOTO
  • Publication number: 20170038101
    Abstract: An adsorption core has (i) a heat medium tube in which a heat medium flows and (ii) an adsorption agent that adsorbs a fluid in a vapor phase outside of the heat medium tube when being cooled by the heat medium and desorbs the absorbed fluid when being heated. The heat medium tube has (i) a core member that is made of metal having a higher hardness with respect to copper and (ii) a covering layer that is made of copper and covers an outer surface of the core member. A sintered body of a copper powder and the adsorption agent is provided in a peripheral portion of the heat medium tube. The copper powder and the heat medium tube are metallically coupled with each other. Accordingly, stiffness of the heat medium tube can be higher while improving a heat transfer performance between the heat medium tube and the adsorption agent.
    Type: Application
    Filed: November 28, 2014
    Publication date: February 9, 2017
    Inventors: Shinsuke TAKEUCHI, Akira YANAGIDA, Yoshiyuki OKAMOTO, Hisao NAGASHIMA
  • Publication number: 20160313034
    Abstract: An adsorber includes: a heat-medium pipe through which a heat medium flows; an adsorbent layer having an adsorbent that adsorbs a vapor-phase refrigerant located outside the heat-medium pipe by being cooled by the heat medium, and further desorbs the adsorbed refrigerant by being heated; and a heat-transfer member that transfers heat between the heat-medium pipe and the adsorbent. In the adsorber in which the heat-transfer member and the adsorbent are integrally formed, an adsorbent filling ratio ? is set at 70% or less when the adsorbent filling ratio ? is defined as a value obtained by dividing a filling density ? of the adsorbent filled in the adsorbent layer by a true density pabs of particles of the adsorbent. For example, the adsorber may be suitably used for an adsorption refrigerator.
    Type: Application
    Filed: December 17, 2014
    Publication date: October 27, 2016
    Inventors: Shinsuke TAKEUCHI, Akira YANAGIDA, Yoshiyuki OKAMOTO, Hisao NAGASHIMA
  • Publication number: 20160223229
    Abstract: In an adsorber, a sintered body, which is formed by sintering metal powder particles, is joined to an outer surface of a heat medium tube, in which heat medium flows. An adsorbent is held by the sintered body. A groove is formed in an outer surface of the heat medium tube, and a groove is formed in an inner surface of the heat medium tube.
    Type: Application
    Filed: September 10, 2014
    Publication date: August 4, 2016
    Inventors: Shinsuke TAKEUCHI, Hisao NAGASHIMA
  • Patent number: 8770267
    Abstract: An adsorption module has heat medium pipes through which a fluid flows, a porous heat transferring member, and adsorbent. The porous heat transferring member is a sintered body formed by sintering a metallic material that is in a form of one of powders, particles and fibers, and has pores for allowing an adsorbed medium to pass through. The porous heat transferring member is disposed on peripheries of the heat medium pipes and bonded to outer surfaces of the heat medium pipes by sintering. The adsorbent is disposed in the pores. The porous heat transferring member further has an adsorbed medium passage for allowing the adsorbed medium to pass through. The adsorbed medium passage is located between the heat medium pipes, and extends straight and parallel to axes of the heat medium pipes.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: July 8, 2014
    Assignee: Denso Corporation
    Inventors: Hisao Nagashima, Masaaki Tanaka, Satoshi Inoue, Hiroshi Mieda, Seiji Inoue, Katsuya Komaki
  • Publication number: 20100314084
    Abstract: A heat exchanger includes board members layered with each other, and a sintered member. A first passage and a second passage are alternately defined between the layered board members. The sintered member adsorbs or desorbs first fluid flowing through the first passage. Second fluid flowing through the second passage has a pressure higher than that of the first fluid. The sintered member is layered on a first face of the board member defining the first passage. The sintered member is pressurized on the first face of the board member in a direction of layering the board members. All outer periphery of the second passage is sealed.
    Type: Application
    Filed: June 3, 2010
    Publication date: December 16, 2010
    Applicant: DENSO CORPORATION
    Inventors: Shinsuke Takeuchi, Hisao Nagashima
  • Patent number: 7691767
    Abstract: Provided are a catalyst which inhibits light paraffins form being produced in catalytic cracking of heavy hydrocarbons and which effectively produces olefins and a process in which the above catalyst is used to produce olefins from heavy hydrocarbons at a high yield. The catalyst is a catalytic cracking catalyst for catalytically cracking a hydrocarbon raw material, comprising (A) pentasil type zeolite modified with a rare earth element and zirconium and (B) faujasite type zeolite, and the process is a production process for olefin and a fuel oil, comprising bringing a heavy oil containing 50 mass % or more of a hydrocarbon fraction having a boiling point of 180° C. or higher into contact with the catalyst described above to crack it.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: April 6, 2010
    Assignees: Research Association of Refinery Integration for Group-Operation, Idemitsu Kosan Co., Ltd.
    Inventors: Kenichi Wakui, Kinsho Furusawa, Akio Suwa, Toshio Itoh, Hisao Nagashima
  • Publication number: 20080078532
    Abstract: An adsorption module has heat medium pipes through which a fluid flows, a porous heat transferring member, and adsorbent. The porous heat transferring member is a sintered body formed by sintering a metallic material that is in a form of one of powders, particles and fibers, and has pores for allowing an adsorbed medium to pass through. The porous heat transferring member is disposed on peripheries of the heat medium pipes and bonded to outer surfaces of the heat medium pipes by sintering. The adsorbent is disposed in the pores. The porous heat transferring member further has an adsorbed medium passage for allowing the adsorbed medium to pass through. The adsorbed medium passage is located between the heat medium pipes, and extends straight and parallel to axes of the heat medium pipes.
    Type: Application
    Filed: September 27, 2007
    Publication date: April 3, 2008
    Applicant: DENSO Corporation
    Inventors: Hisao Nagashima, Masaaki Tanaka, Satoshi Inoue, Hiroshi Mieda, Seiji Inoue, Katsuya Komaki
  • Publication number: 20080028787
    Abstract: An adsorption type heat exchanger includes a heat exchange part, in which a thermal medium circulates, and adsorbents made of particles. The adsorbents are fixed on an outer surface of the heat exchange part, to adsorb refrigerant vapor when a temperature of the thermal medium is low, and to desorb the adsorbed refrigerant vapor when the temperature of the thermal medium is high. In addition, percents of the adsorbents having particle sizes about in a range from 0 to 42 ?m are about 90% and over of the whole adsorbents.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 7, 2008
    Applicant: DENSO Corporation
    Inventors: Hiroshi Mieda, Seiji Inoue, Satoshi Inoue, Hisao Nagashima, Masaaki Tanaka
  • Publication number: 20070170094
    Abstract: Provided are a catalyst which inhibits light paraffins form being produced in catalytic cracking of heavy hydrocarbons and which effectively produces olefins and a process in which the above catalyst is used to produce olefins from heavy hydrocarbons at a high yield. The catalyst is a catalytic cracking catalyst for catalytically cracking a hydrocarbon raw material, comprising (A) pentasil type zeolite modified with a rare earth element and zirconium and (B) faujasite type zeolite, and the process is a production process for olefin and a fuel oil, comprising bringing a heavy oil containing 50 mass % or more of a hydrocarbon fraction having a boiling point of 180° C. or higher into contact with the catalyst described above to crack it.
    Type: Application
    Filed: January 17, 2007
    Publication date: July 26, 2007
    Applicants: Rsrch Assoc. of Refinery Integration for Group-Op., Idemitsu Kosan Co., Ltd.
    Inventors: Kenichi Wakui, Kinsho Furusawa, Akio Suwa, Toshio Itoh, Hisao Nagashima
  • Patent number: 6994154
    Abstract: In an adsorber for an adsorption type refrigerator of the present invention, aluminum heat exchangers 120, 130 arranged in a casing 110 are provided with films which do not permit moisture to pass therethrough, such as SiO3 films, anodic oxide coating films and several ppm to a hundred and several tens of ppm of inorganic negative ions such as PO43?, SiO32? are added in the water enclosed in the casing.
    Type: Grant
    Filed: April 6, 2004
    Date of Patent: February 7, 2006
    Assignee: DENSO Corporation
    Inventors: Hisao Nagashima, Junji Otobe, Katsuya Ishii
  • Publication number: 20040200603
    Abstract: In an adsorber for an adsorption type refrigerator of the present invention, aluminum heat exchangers 120, 130 arranged in a casing 110 are provided with films which do not permit moisture to pass therethrough, such as SiO3 films, anodic oxide coating films and several ppm to a hundred and several tens of ppm of inorganic negative ions such as PO43−, SiO32− are added in the water enclosed in the casing.
    Type: Application
    Filed: April 6, 2004
    Publication date: October 14, 2004
    Inventors: Hisao Nagashima, Junji Otobe, Katsuya Ishii
  • Patent number: 6474099
    Abstract: The present invention provides an adsorption-type cooling apparatus comprising first, second, third, and fourth adsorption devices filled with a coolant and contain adsorbents which adsorb evaporated coolant and desorb the adsorbed coolant during heating. Adsorption cores provide heat exchange between the adsorbents and a heat medium, and evaporation and condensation cores provide heat exchange between heating medium and the coolant. A cooling device in which heating medium cooled in the evaporation and condensation cores circulates and cools the object of cooling. A heating means supplies a high-temperature heat medium to the first-fourth adsorption devices. A cooling means supplies a low-temperature heat medium which has a temperature lower than that of the high-temperature heat medium to the first-fourth adsorption devices. Also, a switching control means is provided which switches between multiple states.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: November 5, 2002
    Assignee: Denso Corporation
    Inventors: Masaaki Tanaka, Satoshi Inoue, Hideaki Sato, Katsuya Ishii, Hisao Nagashima, Shin Honda, Takahisa Suzuki
  • Publication number: 20020035849
    Abstract: The present invention provides an adsorption-type cooling apparatus comprising first, second, third, and fourth adsorption devices filled with a coolant and contain adsorbents which adsorb evaporated coolant and desorb the adsorbed coolant during heating. Adsorption cores provide heat exchange between the adsorbents and a heat medium, and evaporation and condensation cores provide heat exchange between heating medium and the coolant. A cooling device in which heating medium cooled in the evaporation and condensation cores circulates and cools the object of cooling. A heating means supplies a high-temperature heat medium to the first-fourth adsorption devices. A cooling means supplies a low-temperature heat medium which has a temperature lower than that of the high-temperature heat medium to the first-fourth adsorption devices. Also, a switching control means is provided which switches between multiple states.
    Type: Application
    Filed: April 2, 2001
    Publication date: March 28, 2002
    Inventors: Masaaki Tanaka, Satoshi Inoue, Kideaki Sato, Katsuya Ishii, Hisao Nagashima, Shin Honda, Takahisa Suzuki