Patents by Inventor Eizo Takahashi

Eizo Takahashi 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: 20200198243
    Abstract: A three-dimensional shaping apparatus coupled to a server includes a melting portion melting a material to form a shaping material, an ejection portion ejecting the shaping material supplied from the melting portion, a shaping stage where the shaping material ejected from the ejection portion is stacked, a moving mechanism changing a relative position of the ejection portion and the shaping stage, a shape data generation portion generating second shape data for representing a shape of a three-dimensional shaped article including a shape representing identification information for identifying the three-dimensional shaped article using first shape data and the identification information for identifying the three-dimensional shaped article, a controller controlling the melting portion and the moving mechanism according to the second shape data, thereby producing the three-dimensional shaped article, and a communication portion transmitting the identification information for identifying the three-dimensional shap
    Type: Application
    Filed: December 19, 2019
    Publication date: June 25, 2020
    Inventors: Eizo TAKAHASHI, Tsuyoshi KITAHARA
  • Publication number: 20200198244
    Abstract: A three-dimensional shaping apparatus includes an ejection portion ejecting a shaping material, a shaping stage where the shaping material ejected from the ejection portion is stacked, a moving mechanism changing a relative position of the ejection portion and the shaping stage, a data generation portion generating second shaping data for representing a shape of a three-dimensional shaped article including a shape representing a type of the shaping material using first shaping data and material data representing the type of the shaping material, and a controller controlling the ejection portion and the moving mechanism according to the second shaping data, thereby shaping the three-dimensional shaped article.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 25, 2020
    Inventor: Eizo TAKAHASHI
  • Patent number: 10172530
    Abstract: A biological information processing system includes a pulse wave information acquisition unit which acquires pulse wave information of a user, and a processing unit which determines the sleep state of the user based on the pulse wave information. The processing unit obtains index information relating to an arousal state during sleep based on the pulse wave information.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: January 8, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Eizo Takahashi
  • Patent number: 9951973
    Abstract: A cooling system (1) that cools an HV apparatus (31) includes a compressor (12) that circulates a refrigerant, a heat exchanger (14) that performs heat exchange between the refrigerant and outside air, an expansion valve (16) that reduces the pressure of the refrigerant, a heat exchanger (18) that performs heat exchange between the refrigerant and air-conditioning air, a cooling portion (30) that cools the HV apparatus (31) using the refrigerant that flows between the heat exchanger (14) and the expansion valve (16), and a gas accumulator (70) that retains a gas-phase refrigerant gasified by heat exchange with the HV apparatus (31) in the cooling portion (30).
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: April 24, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuki Jojima, Yoshiaki Kawakami, Eizo Takahashi, Kousuke Sato, Yuichi Ohno, Kazuhide Uchida
  • Publication number: 20180093355
    Abstract: An aluminum heat exchanger is made by disposing an inner fin in a closed space formed by overlapping edge portions of a formed single tube plate or a plurality of formed tube plates, and brazing a first joint obtained by overlapping the edge portions of the tube plate and a second joint obtained by causing the inner fin to abut against the tube plate, wherein an Al—Si-based brazing filler material is interposed at the first and second joints, and brazing is carried out in an inert gas atmosphere without using flux, wherein the inner fin is constituted of a brazing sheet obtained by cladding a core material of an aluminum alloy, on both surfaces thereof, with the Al—Si-based brazing filler material having a solidus temperature of 570° C. or lower, the solidus temperature being lower than a solidus temperature of the Al—Si-based brazing filler material interposed at the first joint.
    Type: Application
    Filed: April 18, 2016
    Publication date: April 5, 2018
    Applicants: DENSO CORPORATION, UACJ CORPORATION
    Inventors: Hideaki Sato, Eizo Takahashi, Yasunaga Itoh, Yutaka Yanagawa, Tomoki Yamayoshi
  • Patent number: 9924882
    Abstract: A biological information processing system includes a pulse wave information acquisition unit which acquires pulse wave information of a user, and a processing unit which determines the sleep state of the user based on the pulse wave information. The processing unit obtains index information relating to an arousal state during sleep based on the pulse wave information.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: March 27, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Eizo Takahashi
  • Patent number: 9923214
    Abstract: A heat exchanging system exchanging heat between refrigerant and a battery includes: a compressor circulating refrigerant; a heat exchanger exchanging heat between the refrigerant and outside air; an expansion valve decompressing the refrigerant; a heat exchanger exchanging heat between the refrigerant and air-conditioning air; a heat exchanging portion connected in parallel with the heat exchanger and exchanging heat between the refrigerant and the battery; a bypass passage providing fluid communication between a path of the refrigerant between the compressor and the heat exchanger and a path of the refrigerant between the expansion valve and the heat exchanger; an expansion valve provided in the bypass passage and decompressing the refrigerant flowing through the bypass passage; and a selector valve allowing or interrupting flow of the refrigerant via the bypass passage.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: March 20, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Yoshiaki Kawakami, Yuki Jojima, Eizo Takahashi, Kousuke Sato
  • Publication number: 20170268796
    Abstract: An information processing system includes: a measuring unit which measures biological information of a user present in a closed space; and a processing unit which controls an environmental state of the closed space on the basis of the biological information. The processing unit controls a pressure which is an air pressure or partial pressure of oxygen in the closed space, or a concentration which is an oxygen concentration, on the basis of the biological information.
    Type: Application
    Filed: February 27, 2017
    Publication date: September 21, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Eizo TAKAHASHI
  • Patent number: 9732663
    Abstract: A cooling system for cooling a hybrid vehicle apparatus includes a compressor that circulates a refrigerant, a first heat exchanger that carries out heat exchange between the refrigerant and outside air, an expansion valve that reduces the pressure of the refrigerant, a second heat exchanger that carries out heat exchange between the refrigerant and air-conditioning air, a cooling portion that cools the hybrid vehicle apparatus using the refrigerant that flows between the heat exchanger and the expansion valve, a gas-liquid separator that separates the refrigerant that flows between the heat exchanger and the cooling portion into a liquid-phase refrigerant and a gas-phase refrigerant, and a liquid accumulator that is provided between the gas-liquid separator and the cooling portion, and that retains the liquid-phase refrigerant separated by the gas-liquid separator.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: August 15, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshiaki Kawakami, Yuki Jojima, Eizo Takahashi, Kousuke Sato, Yuichi Ohno, Kazuhide Uchida
  • Patent number: 9678482
    Abstract: A biological information processing system includes a pulse wave information acquisition unit that acquires pulse wave information of a user, and a processing unit that determines a sleep state of the user on the basis of the pulse wave information and instructs an alarm control unit to perform an alarm notification based on a notification mode according to the sleep state.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: June 13, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Eizo Takahashi
  • Patent number: 9681590
    Abstract: A cooling system that cools HV equipment includes a compressor that circulates refrigerant, a condenser that condenses the refrigerant, a gas-liquid separator that stores the refrigerant in liquid form that is condensed by the condenser, an expansion valve that reduces a pressure of the refrigerant, an evaporator that vaporizes the refrigerant that is reduced in pressure by the expansion valve, a first passage and a second passage through which the refrigerant flows from the gas-liquid separator toward the expansion valve, and that are provided in parallel, and a cooling portion that is provided along the second passage and cools the heat source using the refrigerant. The refrigerant in liquid form flows from the gas-liquid separator through the second passage.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: June 13, 2017
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NIPPON SOKEN, INC
    Inventors: Kazuhide Uchida, Yuichi Ohno, Yoshiaki Kawakami, Yuki Jojima, Eizo Takahashi, Kousuke Sato
  • Patent number: 9668657
    Abstract: A biological information processing system includes a pulse wave information acquisition unit that acquires pulse wave information of a user; and a processing unit that instructs an alarm control unit to perform alarm cancellation when it is determined that the user has transitioned from a sleep state to an awakened state, on the basis of the pulse wave information.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: June 6, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Eizo Takahashi
  • Publication number: 20170127992
    Abstract: A fatigue-degree monitoring device includes a first-fatigue-indicator calculating section configured to calculate a first indicator concerning fatigue of a user on the basis of operation from an operation section, a second-fatigue-indicator calculating section configured to calculate a second indicator concerning the fatigue of the user on the basis of biological information of the user, and a fatigue determining section configured to determine a fatigue degree of the user on the basis of the first indicator and the second indicator.
    Type: Application
    Filed: November 7, 2016
    Publication date: May 11, 2017
    Inventor: Eizo Takahashi
  • Publication number: 20170122669
    Abstract: A stacked heat exchanger includes a first heat-exchanging portion in which heat is exchanged between a refrigerant and a coolant. The first heat-exchanging portion has multiple first plate members stacked and bonded to one another, and multiple first refrigerant channels and multiple coolant channels provided among the multiple first plate members. The multiple first refrigerant channels and the multiple coolant channels are arranged in a staking direction of the multiple first plate members. The stacked heat exchanger further includes a second ceiling board bonded to a first ceiling board which is one of the multiple first plate members located on an outermost side in the stacking direction, and a vapor-liquid separation portion having a space between the first ceiling board and the second ceiling board, separating the refrigerant flowed in into a vapor and a liquid, and storing an excess refrigerant in a refrigeration cycle.
    Type: Application
    Filed: May 18, 2015
    Publication date: May 4, 2017
    Inventor: Eizo TAKAHASHI
  • Patent number: 9612041
    Abstract: Exemplary embodiments of a cooling apparatus cool a charger for charging a storage battery upon reception of a supply of power from a power supply. Exemplary embodiments include a compressor that circulates a refrigerant, a cooling unit provided on a path along which the refrigerant flows between the heat exchanger and the expansion valve to cool the charger using the refrigerant, a refrigerant passage through which the refrigerant flows between the compressor and the heat exchanger, a refrigerant passage through which the refrigerant flows between the cooling unit and the expansion valve, and a connecting passage connecting the refrigerant passage and the refrigerant passage. When heating occurs, frost formation can be suppressed without increasing configuration complexity and power consumption.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: April 4, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshiaki Kawakami, Yuki Jojima, Eizo Takahashi, Kousuke Sato, Kazuhide Uchida, Yuichi Ohno
  • Patent number: 9599239
    Abstract: A selector valve includes: a first valve element having a through-hole; a first housing having a radial hole through which fluid flowing though the through-hole passes, the first housing accommodating the first valve element; a second valve element having a through-hole; a second housing having radial holes through which fluid flowing through the through-hole passes, the second housing accommodating the second valve element; and a motor configured to integrally actuate the first valve element and the second valve element. A hollow space configured to suppress transfer of heat between the first valve element and the second valve element is formed between the first valve element and the second valve element. A hollow space configured to suppress transfer of heat between the first housing and the second housing is formed between the first housing and the second housing.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: March 21, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuichi Ohno, Kazuhide Uchida, Yuki Jojima, Yoshiaki Kawakami, Eizo Takahashi, Kousuke Sato
  • Patent number: 9322586
    Abstract: A cooling system includes: a compressor that circulates refrigerant; a heat exchanger that exchanges heat between the refrigerant and outside air; a cooling portion that uses the refrigerant to cool the heat generating source; a first line through which the refrigerant, which has been discharged from the compressor, flows to the cooling portion; a second line through which the refrigerant circulates between the heat exchanger and the cooling portion; and a selector valve that switches between fluid communication of the first line and fluid communication of the second line. A control device includes a detecting unit configured to detect an abnormality of the compressor; and a switching unit configured to switch the selector valve to interrupt the fluid communication of the first line and to allow the fluid communication of the second line when the abnormality has been detected by the detecting unit.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: April 26, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuichi Ohno, Kazuhide Uchida, Yuki Jojima, Yoshiaki Kawakami, Eizo Takahashi, Kousuke Sato
  • Publication number: 20160007868
    Abstract: A biological information processing system includes a pulse wave information acquisition unit which acquires pulse wave information of a user, and a processing unit which determines the sleep state of the user based on the pulse wave information. The processing unit obtains index information relating to an arousal state during sleep based on the pulse wave information.
    Type: Application
    Filed: July 2, 2015
    Publication date: January 14, 2016
    Inventor: Eizo TAKAHASHI
  • Publication number: 20160010929
    Abstract: A stacked heat exchanger including a core portion having a plurality of plates stacked on each other to define a flat refrigerant passage and a flat heat medium passage. A first connection member that provides an inlet and an outlet for allowing the refrigerant to flow into the refrigerant passage. A second connection member that provides an inlet and an outlet for allowing the heat medium to flow into the heat medium passage, in which the inlet and the outlet are configured in a state where the heat medium flowing into the heat medium passage flows in an opposite direction to that of the refrigerant flowing in the refrigerant passage. The core portion includes an offset fin disposed in at least the refrigerant passage.
    Type: Application
    Filed: February 21, 2014
    Publication date: January 14, 2016
    Inventors: Eizo TAKAHASHI, Isao TAMADA
  • Publication number: 20160005291
    Abstract: A biological information processing system includes a pulse wave information acquisition unit that acquires pulse wave information of a user, and a processing unit that determines a sleep state of the user on the basis of the pulse wave information and instructs an alarm control unit to perform an alarm notification based on a notification mode according to the sleep state.
    Type: Application
    Filed: June 29, 2015
    Publication date: January 7, 2016
    Inventor: Eizo TAKAHASHI