Patents by Inventor Ikuhiro Yamada
Ikuhiro Yamada 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).
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Publication number: 20250115796Abstract: 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: ApplicationFiled: December 19, 2024Publication date: April 10, 2025Applicant: 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
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Patent number: 12253277Abstract: An air conditioner includes: use-side units that are each switchable between a cooling operation and a heating operation; and a heat-source-side unit including a compressor, a discharge pipe through which a refrigerant discharged from the compressor flows, a first main heat-source-side flow path and a second main heat-source-side flow path that branch off from the discharge pipe, a first heat-source-side heat exchanger, a second heat-source-side heat exchanger, a first economizer heat exchanger, and a second economizer heat exchanger. The first heat-source-side heat exchanger is connected to the first economizer heat exchanger in series in the first main heat-source-side flow path. The second heat-source-side heat exchanger is connected to the second economizer heat exchanger in series in the second main heat-source-side flow path.Type: GrantFiled: March 25, 2022Date of Patent: March 18, 2025Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Atsushi Yoshimi, Takuro Yamada, Eiji Kumakura, Ikuhiro Iwata, Takeru Miyazaki
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Patent number: 12235027Abstract: Efficiency in refrigerant charging work is addressed when a refrigerant recovered from the first heat source unit is to be charged to a second heat source unit. In a refrigerant charging method in which a first heat source unit of an already installed refrigeration cycle apparatus in which a refrigeration cycle is to be performed by a refrigerant that circulates is replaced with a second heat source unit, transferring the refrigerant from the first heat source unit to the second heat source unit is included. In addition, the method includes measuring the weight of the refrigerant that is transferred from the first heat source unit to the second heat source unit.Type: GrantFiled: September 20, 2019Date of Patent: February 25, 2025Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Takuro Yamada, Atsushi Yoshimi, Eiji Kumakura, Ikuhiro Iwata
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Patent number: 7895857Abstract: An indoor unit of an air conditioner wherein a pipe retaining member retaining auxiliary piping connected to a heat exchanger is disposed near both a lateral side and an underside of a mounting frame. The pipe retaining member is bent in an L-shape, and its short plate is exposed on the underside of the mounting frame. The pipe retaining member can be removed only by slightly separating a lower part of the mounting frame from a wall in the fixed state of the indoor unit to the wall. Since the heat exchanger can be separated from the mounting frame without disconnecting the auxiliary piping from communication piping, maintenance work such as washing of the heat exchanger is efficiently performed without requiring much time and effort for separating the auxiliary piping from the communication piping.Type: GrantFiled: September 9, 2005Date of Patent: March 1, 2011Assignee: Daikin Industies, Ltd.Inventors: Kiyoshi Inoue, Katsuhiro Wakihara, Toshiaki Yamada, Ikuhiro Yamada, Shiro Kashiwa
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Patent number: 7694526Abstract: A shielding member includes a shielding plate for covering a part of a heat exchanger, heat transfer tube engagement sections for engaging with heat transfer tubes of the heat exchanger, fin engagement portions for engaging with fins of the heat exchanger, a bypass preventing rib for preventing air from being directed to the part of the heat exchanger, and a mismounting preventing portion for preventing the shielding member from being mounted on a heat exchanger that does not require blocking of air flow. The heat exchanger in which the part covered with the shielding member has no heat exchanging function is manufactured with the same components as those of a heat exchanger on which the shielding member is not mounted and the whole of which has a heat exchanging function.Type: GrantFiled: October 31, 2005Date of Patent: April 13, 2010Assignee: Daikin Industries, Ltd.Inventors: Kiyoshi Inoue, Katsuhiro Wakihara, Naoko Asai, Toshiaki Yamada, Ikuhiro Yamada, Shiro Kashiwa
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Patent number: 7395681Abstract: The present invention provides stretchable warp-knitted fabric that is a 1×1 tricot formed by running a non-elastic yarn and an elastic yarn side by side in such a manner that in each stitch, at least one of the non-elastic yarn and the elastic yarn forms a closed loop, a method for manufacturing the fabric, and stretchable clothing using the fabric at least in a part. Since a cut edge of the knitted fabric can be used as a hem of the clothing without finishing, sewing is simplified. It is possible to provide fashionable clothing that has appropriate stretchability enabling the clothing to well fit the body of the wearer, that is thin and has a beautiful texture, and that, when it is formed in underwear, has a hem line invisible through outerwear.Type: GrantFiled: December 28, 2005Date of Patent: July 8, 2008Assignee: Wacoal Corp.Inventors: Kei Oya, Masami Saito, Mayumi Ogawa, Ikuhiro Yamada, Yasue Kawashima
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Publication number: 20080000249Abstract: An indoor unit of an air conditioner wherein a pipe retaining member retaining auxiliary piping connected to a heat exchanger is disposed near both a lateral side and an underside of a bottom frame. The pipe retaining member is bent in an L-shape, and its short plate is exposed on the underside of the bottom frame. The pipe retaining member can be removed only by slightly separating a lower part of the bottom frame from a wall in the fixed state of the indoor unit to the wall. Since the heat exchanger can be separated from the bottom frame without disconnecting the auxiliary piping from communication piping, maintenance work such as washing of the heat exchanger is efficiently performed without requiring much time and effort for separating the auxiliary piping from the communication piping.Type: ApplicationFiled: September 9, 2005Publication date: January 3, 2008Applicant: Daikin Industries, Ltd.Inventors: Kiyoshi Inoue, Katsuhiro Wakihara, Toshiaki Yamada, Ikuhiro Yamada, Shiro Kashiwa
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Publication number: 20070245757Abstract: A shielding member includes a shielding plate for covering a part of a heat exchanger, heat transfer tube engagement sections for engaging with heat transfer tubes of the heat exchanger, fin engagement portions for engaging with fins of the heat exchanger, a bypass preventing rib for preventing air from being directed to the part of the heat exchanger, and a mismounting preventing portion for preventing the shielding member from being mounted on a heat exchanger that does not require blocking of air flow. The heat exchanger in which the part covered with the shielding member has no heat exchanging function is manufactured with the same components as those of a heat exchanger on which the shielding member is not mounted and the whole of which has a heat exchanging function.Type: ApplicationFiled: October 31, 2005Publication date: October 25, 2007Applicant: Daikin Industries, Ltd.Inventors: Kiyoshi Inoue, Katsuhiko Wakihara, Naoko Asai, Toshiaki Yamada, Ikuhiro Yamada, Shiro Kashiwa
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Patent number: 7051556Abstract: The present invention provides stretchable warp-knitted fabric that is a 1×1 tricot formed by running a non-elastic yarn and an elastic yarn side by side in such a manner that in each stitch, at least one of the non-elastic yarn and the elastic yarn forms a closed loop, a method for manufacturing the fabric, and stretchable clothing using the fabric at least in a part. Since a cut edge of the knitted fabric can be used as a hem of the clothing without finishing, sewing is simplified. It is possible to provide fashionable clothing that has appropriate stretchability enabling the clothing to well fit the body of the wearer, that is thin and has a beautiful texture, and that, when it is formed in underwear, has a hem line invisible through outerwear.Type: GrantFiled: October 31, 2002Date of Patent: May 30, 2006Assignee: Wacoal Corp.Inventors: Kei Oya, Masami Saito, Mayumi Ogawa, Ikuhiro Yamada, Yasue Kawashima
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Publication number: 20060101862Abstract: The present invention provides stretchable warp-knitted fabric that is a 1×1 tricot formed by running a non-elastic yarn and an elastic yarn side by side in such a manner that in each stitch, at least one of the non-elastic yarn and the elastic yarn forms a closed loop, a method for manufacturing the fabric, and stretchable clothing using the fabric at least in a part. Since a cut edge of the knitted fabric can be used as a hem of the clothing without finishing, sewing is simplified. It is possible to provide fashionable clothing that has appropriate stretchability enabling the clothing to well fit the body of the wearer, that is thin and has a beautiful texture, and that, when it is formed in underwear, has a hem line invisible through outerwear.Type: ApplicationFiled: December 28, 2005Publication date: May 18, 2006Applicant: Wacoal Corp.Inventors: Kei Oya, Masami Saito, Mayumi Ogawa, Ikuhiro Yamada, Yasue Kawashima
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Publication number: 20060101863Abstract: The present invention provides stretchable warp-knitted fabric that is a 1×1 tricot formed by running a non-elastic yarn and an elastic yarn side by side in such a manner that in each stitch, at least one of the non-elastic yarn and the elastic yarn forms a closed loop, a method for manufacturing the fabric, and stretchable clothing using the fabric at least in a part. Since a cut edge of the knitted fabric can be used as a hem of the clothing without finishing, sewing is simplified. It is possible to provide fashionable clothing that has appropriate stretchability enabling the clothing to well fit the body of the wearer, that is thin and has a beautiful texture, and that, when it is formed in underwear, has a hem line invisible through outerwear.Type: ApplicationFiled: December 28, 2005Publication date: May 18, 2006Applicant: Wacoal Corp.Inventors: Kei Oya, Masami Saito, Mayumi Ogawa, Ikuhiro Yamada, Yasue Kawashima
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Publication number: 20040237597Abstract: The present invention provides stretchable warp-knitted fabric that is a 1×1 tricot formed by running a non-elastic yarn and an elastic yarn side by side in such a manner that in each stitch, at least one of the non-elastic yarn and the elastic yarn forms a closed loop, a method for manufacturing the fabric, and stretchable clothing using the fabric at least in a part. Since a cut edge of the knitted fabric can be used as a hem of the clothing without finishing, sewing is simplified. It is possible to provide fashionable clothing that has appropriate stretchability enabling the clothing to well fit the body of the wearer, that is thin and has a beautiful texture, and that, when it is formed in underwear, has a hem line invisible through outerwear.Type: ApplicationFiled: July 13, 2004Publication date: December 2, 2004Inventors: Kei Oya, Masami Saito, Mayumi Ogawa, Ikuhiro Yamada, Yasue Kawashima