Patents by Inventor Yuuichi YANAGI

Yuuichi YANAGI 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: 20230132359
    Abstract: A refrigeration cycle apparatus (1) is capable of performing a refrigeration cycle using a small-GWP refrigerant. The refrigeration cycle apparatus (1) includes a refrigerant circuit (10) and a refrigerant enclosed in the refrigerant circuit (10). The refrigerant circuit includes a compressor (21), a condenser (23), a decompressing section (24), and an evaporator (31). The refrigerant contains is a small-GWP refrigerant.
    Type: Application
    Filed: July 16, 2019
    Publication date: April 27, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Eiji KUMAKURA, Takuro YAMADA, Atsushi YOSHIMI, Ikuhiro IWATA, Yoshinari ASANO, Keisuke OHTSUKA, Keiji AOTA, Mitsushi ITANO, Shun OHKUBO, Tatsuya TAKAKUWA, Daisuke KARUBE, Yuuki YOTSUMOTO, Kenji GOBOU, Hitomi KUROKI, Tomoyuki GOTOU, Akihito MIZUNO, Yasufu YAMADA, Tatsumi TSUCHIYA, Yuuichi YANAGI, Yoshikazu NAKAO, Takeo ABE, Yumi TODA, Tetsushi TSUDA
  • Publication number: 20230097829
    Abstract: A refrigeration cycle apparatus (1) is capable of performing a refrigeration cycle using a small-GWP refrigerant. The refrigeration cycle apparatus (1) includes a refrigerant circuit (10) and a refrigerant enclosed in the refrigerant circuit (10). The refrigerant circuit includes a compressor (21), a condenser (23), a decompressing section (24), and an evaporator (31). The refrigerant contains at least 1,2-difluoroethylene.
    Type: Application
    Filed: November 21, 2022
    Publication date: March 30, 2023
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Eiji KUMAKURA, Takuro YAMADA, Atsushi YOSHIMI, Ikuhiro IWATA, Mitsushi ITANO, Daisuke KARUBE, Yuuki YOTSUMOTO, Kazuhiro TAKAHASHI, Tatsuya TAKAKUWA, Yuzo KOMATSU, Shun OHKUBO, Keisuke OHTSUKA, Yuuichi YANAGI, Takeo ABE, Yumi TODA, Tetsushi TSUDA
  • Patent number: 11535781
    Abstract: A refrigeration cycle apparatus (1) is capable of performing a refrigeration cycle using a small-GWP refrigerant. The refrigeration cycle apparatus (1) includes a refrigerant circuit (10) and a refrigerant enclosed in the refrigerant circuit (10). The refrigerant circuit includes a compressor (21), a condenser (23), a decompressing section (24), and an evaporator (31). The refrigerant contains at least 1,2-difluoroethylene.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: December 27, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Eiji Kumakura, Takuro Yamada, Atsushi Yoshimi, Ikuhiro Iwata, Mitsushi Itano, Daisuke Karube, Yuuki Yotsumoto, Kazuhiro Takahashi, Tatsuya Takakuwa, Yuzo Komatsu, Shun Ohkubo, Keisuke Ohtsuka, Yoshinari Asano, Keiji Aota, Yuuichi Yanagi, Yoshikazu Nakao, Takeo Abe, Yumi Toda, Tetsushi Tsuda
  • Publication number: 20220380648
    Abstract: A refrigeration cycle apparatus (1) is capable of performing a refrigeration cycle using a small-GWP refrigerant. The refrigeration cycle apparatus (1) includes a refrigerant circuit (10) and a refrigerant enclosed in the refrigerant circuit (10). The refrigerant circuit includes a compressor (21), a condenser (23), a decompressing section (24), and an evaporator (31). The refrigerant contains is a small-GWP refrigerant.
    Type: Application
    Filed: July 16, 2019
    Publication date: December 1, 2022
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Eiji KUMAKURA, Takuro YAMADA, Atsushi YOSHIMI, Ikuhiro IWATA, Yoshinari ASANO, Keisuke OHTSUKA, Keiji AOTA, Mitsushi ITANO, Shun OHKUBO, Tatsuya TAKAKUWA, Daisuke KARUBE, Yuuki YOTSUMOTO, Kenji GOBOU, Hitomi KUROKI, Tomoyuki GOTOU, Akihito MIZUNO, Yasufu YAMADA, Tatsumi TSUCHIYA, Yuuichi YANAGI, Yoshikazu NAKAO, Takeo ABE, Yumi TODA, Tetsushi TSUDA
  • Patent number: 11441802
    Abstract: An air conditioning apparatus 1 includes a compressor (321), an indoor heat exchanger (242) that is a use-side heat exchanger that exchanges heat with first air (F1), an outdoor heat exchanger (323) that is a heat-source-side heat exchanger that exchanges heat with second air, a refrigerant, a first duct (209), and a casing (230). The refrigerant contains at least 1,2-difluoroethylene, and circulates in the compressor (321), the indoor heat exchanger (242), and the outdoor heat exchanger (323) to repeat a refrigeration cycle. The first duct (209) supplies the first air (F1) to a plurality of rooms in an interior. The casing (230) includes a use-side space (SP2) that is connected to the first duct (209) and that accommodates the indoor heat exchanger (242). The casing (230) is configured to allow the first air (F1) after heat exchange with the refrigerant at the indoor heat exchanger (242) to be sent out to the first duct (209).
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: September 13, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Mitsushi Itano, Daisuke Karube, Yuuki Yotsumoto, Kazuhiro Takahashi, Yuzo Komatsu, Shun Ohkubo, Tatsuya Takakuwa, Tetsushi Tsuda, Yuuichi Yanagi
  • Publication number: 20200378662
    Abstract: An air conditioning apparatus 1 includes a compressor (321), an indoor heat exchanger (242) that is a use-side heat exchanger that exchanges heat with first air (F1), an outdoor heat exchanger (323) that is a heat-source-side heat exchanger that exchanges heat with second air, a refrigerant, a first duct (209), and a casing (230). The refrigerant contains at least 1,2-difluoroethylene, and circulates in the compressor (321), the indoor heat exchanger (242), and the outdoor heat exchanger (323) to repeat a refrigeration cycle. The first duct (209) supplies the first air (F1) to a plurality of rooms in an interior. The casing (230) includes a use-side space (SP2) that is connected to the first duct (209) and that accommodates the indoor heat exchanger (242). The casing (230) is configured to allow the first air (F1) after heat exchange with the refrigerant at the indoor heat exchanger (242) to be sent out to the first duct (209).
    Type: Application
    Filed: December 11, 2018
    Publication date: December 3, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Mitsushi ITANO, Daisuke KARUBE, Yuuki YOTSUMOTO, Kazuhiro TAKAHASHI, Yuzo KOMATSU, Shun OHKUBO, Tatsuya TAKAKUWA, Tetsushi TSUDA, Yuuichi YANAGI
  • Publication number: 20200363085
    Abstract: An air conditioning apparatus 1 includes a compressor (321), an indoor heat exchanger (242) that is a use-side heat exchanger that exchanges heat with first air (F1), an outdoor heat exchanger (323) that is a heat-source-side heat exchanger that exchanges heat with second air, a refrigerant, a first duct (209), and a casing (230). The refrigerant contains at least 1,2-difluoroethylene, and circulates in the compressor (321), the indoor heat exchanger (242), and the outdoor heat exchanger (323) to repeat a refrigeration cycle. The first duct (209) supplies the first air (F1) to a plurality of rooms in an interior. The casing (230) includes a use-side space (SP2) that is connected to the first duct (209) and that accommodates the indoor heat exchanger (242). The casing (230) is configured to allow the first air (F1) after heat exchange with the refrigerant at the indoor heat exchanger (242) to be sent out to the first duct (209).
    Type: Application
    Filed: June 26, 2020
    Publication date: November 19, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Mitsushi ITANO, Daisuke KARUBE, Yuuki YOTSUMOTO, Kazuhiro TAKAHASHI, Yuzo KOMATSU, Shun OHKUBO, Tatsuya TAKAKUWA, Tetsushi TSUDA, Yuuichi YANAGI
  • Publication number: 20200363106
    Abstract: A refrigeration cycle apparatus including a heat exchanger can decrease the material cost. An air conditioning apparatus (10) that is a refrigeration cycle apparatus includes a flammable refrigerant containing at least 1,2-difluoroethylene, an outdoor heat exchanger (23), and an indoor heat exchanger (27). One of the outdoor heat exchanger (23) and the indoor heat exchanger (27) is an evaporator that evaporates the refrigerant, and the other one is a condenser that condenses the refrigerant. The outdoor heat exchanger (23) and the indoor heat exchanger (27) each are a heat exchanger that includes metal plates (19) serving as a plurality of fins made of aluminum or an aluminum alloy, and flat tubes (16) serving as a plurality of heat transfer tubes made of aluminum or an aluminum alloy, and that causes the refrigerant flowing inside the flat tubes (16) and the air flowing along the metal plates (19) to exchange heat with each other.
    Type: Application
    Filed: June 26, 2020
    Publication date: November 19, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Mitsushi ITANO, Daisuke KARUBE, Yuuki YOTSUMOTO, Kazuhiro TAKAHASHI, Yuzo KOMATSU, Shun OHKUBO, Tatsuya TAKAKUWA, Tetsushi TSUDA, Yuuichi YANAGI
  • Publication number: 20200340714
    Abstract: A refrigeration cycle apparatus including a heat exchanger can decrease the material cost. An air conditioning apparatus (10) that is a refrigeration cycle apparatus includes a flammable refrigerant containing at least 1,2-difluoroethylene, an outdoor heat exchanger (23), and an indoor heat exchanger (27). One of the outdoor heat exchanger (23) and the indoor heat exchanger (27) is an evaporator that evaporates the refrigerant, and the other one is a condenser that condenses the refrigerant. The outdoor heat exchanger (23) and the indoor heat exchanger (27) each are a heat exchanger that includes metal plates (19) serving as a plurality of fins made of aluminum or an aluminum alloy, and flat tubes (16) serving as a plurality of heat transfer tubes made of aluminum or an aluminum alloy, and that causes the refrigerant flowing inside the flat tubes (16) and the air flowing along the metal plates (19) to exchange heat with each other.
    Type: Application
    Filed: December 18, 2018
    Publication date: October 29, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Mitsushi ITANO, Daisuke KARUBE, Yuuki YOTSUMOTO, Kazuhiro TAKAHASHI, Yuzo KOMATSU, Shun OHKUBO, Tatsuya TAKAKUWA, Tetsushi TSUDA, Yuuichi YANAGI
  • Publication number: 20200332166
    Abstract: A refrigeration cycle apparatus (1) is capable of performing a refrigeration cycle using a small-GWP refrigerant. The refrigeration cycle apparatus (1) includes a refrigerant circuit (10) and a refrigerant enclosed in the refrigerant circuit (10). The refrigerant circuit includes a compressor (21), a condenser (23), a decompressing section (24), and an evaporator (31). The refrigerant contains at least 1,2-difluoroethylene.
    Type: Application
    Filed: December 18, 2018
    Publication date: October 22, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Eiji KUMAKURA, Takuro YAMADA, Atsushi YOSHIMI, Ikuhiro IWATA, Mitsushi ITANO, Daisuke KARUBE, Yuuki YOTSUMOTO, Kazuhiro TAKAHASHI, Tatsuya TAKAKUWA, Yuzo KOMATSU, Shun OHKUBO, Keisuke OHTSUKA, Yoshinari ASANO, Keiji AOTA, Yuuichi YANAGI, Yoshikazu NAKAO, Takeo ABE, Yumi TODA, Tetsushi TSUDA