Patents by Inventor Hiromasa TAMAKI

Hiromasa TAMAKI 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: 20240196748
    Abstract: A thermoelectric conversion unit including a pair of first fluid flow passage parts facing each other through which a first fluid flows; a second fluid flow passage part disposed between the first fluid flow passage parts and through which a second fluid having a higher temperature than the first fluid flows; a pair of thermoelectric modules each disposed between a corresponding one of the first fluid flow passage parts and the second fluid flow passage part and generating electromotive force based on a temperature difference between the first fluid and second fluid; and a pair of magnetic body parts disposed inside of or on a surface of the first fluid flow passage parts, in which each of the magnetic body parts has a magnetic body, and the magnetic bodies are disposed so that different magnetic poles face each other, and generate magnetic force pulling the magnetic bodies toward each other.
    Type: Application
    Filed: February 22, 2024
    Publication date: June 13, 2024
    Inventor: HIROMASA TAMAKI
  • Publication number: 20240164211
    Abstract: A thermoelectric conversion element includes a P-type thermoelectric conversion layer, a first metal layer, a second metal layer, a first joining layer, and a second joining layer. The P-type thermoelectric conversion layer includes a thermoelectric conversion material containing Mg and at least one selected from the group consisting of Sb and Bi. The first metal layer and the second metal layer each include Cu or a Cu alloy. The first joining layer and the second joining layer each include Al or an Al alloy containing Mg.
    Type: Application
    Filed: January 23, 2024
    Publication date: May 16, 2024
    Inventors: Takeshi KAWABE, Yuriko KANEKO, Tsutomu KANNO, Hiromasa TAMAKI
  • Publication number: 20240122072
    Abstract: The thermoelectric conversion material of the present disclosure has a composition represented by Mg3-a-bAaCabSb2-xBix. A includes at least one selected from the group consisting of Ag, Na, and Li, and 0<a?0.035 is satisfied. The degree of c-axis orientation p of the thermoelectric conversion material and its composition satisfy, for example, the following condition. Condition (1): 0<b?0.25, 0?x<1.5, and 0.91<p?1.
    Type: Application
    Filed: December 16, 2023
    Publication date: April 11, 2024
    Inventors: RYOSUKE YAMAMURA, HIROMASA TAMAKI
  • Patent number: 11957056
    Abstract: A thermoelectric conversion unit includes a pair of low-temperature fluid flow path sections arranged to face each other, a high-temperature fluid flow path section arranged between the pair of low-temperature fluid flow path sections, a pair of thermoelectric modules each arranged between the high-temperature fluid flow path section and one of the pair of low-temperature fluid flow path sections in a one-to-one relation, and a rod-shaped convex fin and concave fin both arranged in the high-temperature fluid flow path section. The concave fin includes a recess fitted to the convex fin. An outer peripheral surface of the convex fin and an inner peripheral surface of the recess of the concave fin are in contact with each other, and a gap is formed between a tip of the convex fin and a bottom of the recess of the concave fin.
    Type: Grant
    Filed: November 21, 2022
    Date of Patent: April 9, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Hiromasa Tamaki
  • Patent number: 11957055
    Abstract: A thermoelectric conversion element includes a P-type thermoelectric conversion layer, a first metal layer, a second metal layer, a first joining layer, and a second joining layer. The P-type thermoelectric conversion layer includes a thermoelectric conversion material containing Mg and at least one selected from the group consisting of Sb and Bi. The first metal layer and the second metal layer each include Cu or a Cu alloy. The first joining layer and the second joining layer each include Al or an Al alloy containing Mg.
    Type: Grant
    Filed: October 5, 2022
    Date of Patent: April 9, 2024
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takeshi Kawabe, Yuriko Kaneko, Tsutomu Kanno, Hiromasa Tamaki
  • Publication number: 20240099142
    Abstract: A thermoelectric conversion material according to the present disclosure includes Ge, Te, and Sb. The thermoelectric conversion material includes a first region and a second region. The content of Sb in the first region in terms of number density of atoms is higher than the content of Sb in the second region in terms of number density of atoms. The first region includes a dispersed phase.
    Type: Application
    Filed: December 1, 2023
    Publication date: March 21, 2024
    Inventors: FUYUKI ANDO, HIROMASA TAMAKI
  • Publication number: 20240099139
    Abstract: A fabrication method of a thermoelectric conversion element includes forming a first metal layer containing Cu on a first surface of a thermoelectric conversion layer, and forming a first electrode and a first intermediate layer from the first metal layer. The thermoelectric conversion layer is composed of a thermoelectric conversion material containing Mg and at least one kind of element selected from the group consisting of Sb and Bi, the first intermediate layer is provided between the thermoelectric conversion layer and the first electrode, the first intermediate layer is in contact with the thermoelectric conversion layer, the first electrode is in contact with the first intermediate layer, and a composition of the first intermediate layer is different from both a composition of the first electrode and a composition of the thermoelectric conversion layer.
    Type: Application
    Filed: November 30, 2023
    Publication date: March 21, 2024
    Inventors: Miho UEHARA, Yuriko KANEKO, Atsushi ONO, Masashige KAWABE, Tsutomu KANNO, Hiromasa TAMAKI, Hiroki SATO
  • Publication number: 20240090332
    Abstract: A thermoelectric conversion element includes a p-type thermoelectric conversion layer, a first metal layer, a second metal layer, a first bonding layer, and a second bonding layer. The thermoelectric conversion layer is composed of a p-type thermoelectric conversion material containing a Mg3(Sb,Bi)2-based alloy as a main phase and containing carbon. At least one of the first bonding layer or the second bonding layer contains Al and Si.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Inventors: TAKESHI KAWABE, YURIKO KANEKO, TSUTOMU KANNO, HIROMASA TAMAKI
  • Publication number: 20240090331
    Abstract: A thermoelectric conversion material of the present disclosure is a p-type thermoelectric conversion material which includes an alloy containing Mg and Bi as a main phase and which contains carbon. The thermoelectric conversion material includes, for example, a Mg3(Sb,Bi)2-based alloy as the main phase. An atomic percentage of Bi included in the main phase is greater than or equal to an atomic percentage of Sb included in the main phase. The thermoelectric conversion material satisfies, for example, 0.01 at %?CC?1.2 at %, where CC represents a content ratio of carbon in the thermoelectric conversion material.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Inventors: TAKESHI KAWABE, YURIKO KANEKO, TSUTOMU KANNO, HIROMASA TAMAKI
  • Patent number: 11910713
    Abstract: The present disclosure provides a thermoelectric conversion material having a composition represented by a chemical formula of Li2?a+bMg1?bSi. In this thermoelectric conversion material, either requirement (i) in which 0?a?0.0001 and 0.0001?b?0.25-a or requirement (ii) in which 0.0001?a?0.25 and 0?b?0.25-a is satisfied. The thermoelectric conversion material has an Li8Al3Si5 type crystalline structure.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: February 20, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hiromasa Tamaki, Yuriko Kaneko, Hiroki Sato, Tsutomu Kanno, HyunJeong Nam
  • Publication number: 20240057480
    Abstract: A thermoelectric conversion material of the present disclosure contains Ge, Mg, at least one of Sb and Bi, and Te, and satisfies the condition (1) represented by x+a+b<0.98. In the condition (1), x is the amount-of-substance ratio of the content of Ge to the content of Te, a is the amount-of-substance ratio of the content of Mg to the content of Te, and b is the amount-of-substance ratio of the sum of the contents of Sb and Bi to the content of Te.
    Type: Application
    Filed: October 24, 2023
    Publication date: February 15, 2024
    Inventors: FUYUKI ANDO, YURIKO KANEKO, TSUTOMU KANNO, HIROMASA TAMAKI
  • Patent number: 11871666
    Abstract: The thermoelectric conversion element according to the present disclosure comprises a first electrode, a second electrode, a first intermediate layer, a second intermediate layer, and a thermoelectric conversion layer. The first intermediate layer is provided between the thermoelectric conversion layer and the first electrode. The first intermediate layer is in contact with the thermoelectric conversion layer. The first electrode is in contact with the first intermediate layer. The second intermediate layer is provided between the thermoelectric conversion layer and the second electrode. The second intermediate layer is in contact with the thermoelectric conversion layer. The second electrode is in contact with the second intermediate layer. The first electrode and the second electrode are composed of a CuZn alloy. The thermoelectric conversion layer is composed of a thermoelectric conversion material containing Mg.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: January 9, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Miho Uehara, Yuriko Kaneko, Atsushi Ono, Masashige Kawabe, Tsutomu Kanno, Hiromasa Tamaki, Hiroki Sato
  • Publication number: 20230386617
    Abstract: A generation process display device that is a generation process output device includes: a first information obtainer that obtains first information about a target material; a deriver that derives, for each of one or more types of generation processes, a generation parameter based on a database regarding materials, where the generation parameter indicates a degree that the generation process is required for generating the target material specified by the first information; and an outputter that outputs one or more generation parameters that have been derived.
    Type: Application
    Filed: August 15, 2023
    Publication date: November 30, 2023
    Inventors: Reiko HAGAWA, Hiromasa TAMAKI, Mayu MORIWAKI
  • Patent number: 11737365
    Abstract: The present disclosure provides a thermoelectric conversion material having a composition represented by a chemical formula of Ba1-a-b-cSrbCacKaMg2Bi2-dSbd. In the chemical formula, the following relationships are satisfied: 0.002?a?0.1, 0?b, 0?c, a+b+c?1, and 0?d?2. In addition, the thermoelectric conversion material has a La2O3-type crystal structure.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: August 22, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hiromasa Tamaki, Hiroki Sato, Tsutomu Kanno
  • Publication number: 20230116962
    Abstract: A thermoelectric conversion material has a La2O3-type crystal structure and is of n-type. The thermoelectric conversion material has a composition represented by Mg3+m-a-bAaBbD2-e-fEeFf. D is at least one of Sb or Bi. E is at least one of P or As. m is a value of greater than or equal to ?0.1 and less than or equal to 0.4. e is a value of greater than or equal to 0.001 and less than or equal to 0.25. A is at least one of Y, Sc, La, or Ce. F is at least one of Se or Te. a and f are values that satisfy a condition of 0.0001?a+f?0.06. B is at least one of Mn or Zn. b is a value of greater than or equal to 0 and less than or equal to 0.25.
    Type: Application
    Filed: December 20, 2022
    Publication date: April 20, 2023
    Inventors: RYOSUKE YAMAMURA, HIROMASA TAMAKI
  • Publication number: 20230090781
    Abstract: A thermoelectric power generation system includes a first flow path, along which a first fluid flows, a second flow path, along which a second fluid having a lower temperature than the first fluid flows, a thermoelectric module arranged between the first flow path and the second flow path, and a controller that switches between a power generation mode and a heating mode. In the power generation mode, the thermoelectric module is caused to generate electric power, based on a difference between a temperature of the first fluid and a temperature of the second fluid. In the heating mode, a first surface of the thermoelectric module is heated using the Peltier effect caused by supplying electric power to the thermoelectric module. A distance between the first surface and the first flow path is shorter than a distance between the first surface and the second flow path.
    Type: Application
    Filed: November 22, 2022
    Publication date: March 23, 2023
    Inventor: HIROMASA TAMAKI
  • Publication number: 20230079123
    Abstract: A thermoelectric conversion unit includes a pair of low-temperature fluid flow path sections arranged to face each other, a high-temperature fluid flow path section arranged between the pair of low-temperature fluid flow path sections, a pair of thermoelectric modules each arranged between the high-temperature fluid flow path section and one of the pair of low-temperature fluid flow path sections in a one-to-one relation, and flat heat transfer plates arranged in the high-temperature fluid flow path section to face each other. Each of the flat heat transfer plates includes an opening and a baffle projecting from a peripheral edge of the opening and baffling a high-temperature fluid passing through the opening to flow in a direction toward one of the pair of thermoelectric modules or the other.
    Type: Application
    Filed: November 21, 2022
    Publication date: March 16, 2023
    Inventor: HIROMASA TAMAKI
  • Publication number: 20230081621
    Abstract: A thermoelectric conversion unit includes a pair of low-temperature fluid flow path sections arranged to face each other, a high-temperature fluid flow path section arranged between the pair of low-temperature fluid flow path sections, a pair of thermoelectric modules each arranged between the high-temperature fluid flow path section and one of the pair of low-temperature fluid flow path sections in a one-to-one relation, and a rod-shaped convex fin and concave fin both arranged in the high-temperature fluid flow path section. The concave fin includes a recess fitted to the convex fin. An outer peripheral surface of the convex fin and an inner peripheral surface of the recess of the concave fin are in contact with each other, and a gap is formed between a tip of the convex fin and a bottom of the recess of the concave fin.
    Type: Application
    Filed: November 21, 2022
    Publication date: March 16, 2023
    Inventor: HIROMASA TAMAKI
  • Publication number: 20230044945
    Abstract: A thermoelectric conversion element includes a P-type thermoelectric conversion layer, a first metal layer, a second metal layer, a first joining layer, and a second joining layer. The P-type thermoelectric conversion layer includes a thermoelectric conversion material containing Mg and at least one selected from the group consisting of Sb and Bi. The first metal layer and the second metal layer each include Cu or a Cu alloy. The first joining layer and the second joining layer each include Al or an Al alloy containing Mg.
    Type: Application
    Filed: October 5, 2022
    Publication date: February 9, 2023
    Inventors: Takeshi KAWABE, Yuriko KANEKO, Tsutomu KANNO, Hiromasa TAMAKI
  • Patent number: 11444230
    Abstract: A thermoelectric conversion material has a composition represented by the chemical formula Li3-aBi1-bSib, in which the range of values a and b is: 0?a?0.0001, and ?a+0.0003?b?0.023; 0.0001?a<0.0003, and ?a+0.0003?b?exp[?0.046×(ln(a))2?1.03×ln(a)?9.51]; or 0.0003?a?0.085, and 0<b?exp[?0.046×(ln(a))2?1.03×ln(a)?9.51], and in which the thermoelectric conversion material has a BiF3-type crystal structure and has a p-type polarity.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: September 13, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hiromasa Tamaki, Tsutomu Kanno, Hiroki Sato