Patents by Inventor Akira Kamino
Akira Kamino 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: 20230420192Abstract: There is provided a method of producing a photovoltaic device comprising a photoactive region comprising a layer of perovskite material, wherein the layer of perovskite material is disposed on a surface that has a roughness average (Ra) or root mean square roughness (Rrms) of greater than or equal to 50 nm. The method comprises using vapour deposition to deposit a substantially continuous and conformal solid layer comprising one or more initial precursor compounds of the perovskite material, and subsequently treating the solid layer with one or more further precursor compounds to form a substantially continuous and conformal solid layer of the perovskite material on the rough surface. There is also provided a photovoltaic device comprising a photoactive region comprising a layer of perovskite material disposed using the method.Type: ApplicationFiled: June 22, 2023Publication date: December 28, 2023Inventors: Brett Akira KAMINO, Laura Miranda PEREZ
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Patent number: 11728098Abstract: There is provided a method of producing a photovoltaic device comprising a photoactive region comprising a layer of perovskite material, wherein the layer of perovskite material is disposed on a surface that has a roughness average (Ra) or root mean square roughness (Rrms) of greater than or equal to 50 nm. The method comprises using vapour deposition to deposit a substantially continuous and conformal solid layer comprising one or more initial precursor compounds of the perovskite material, and subsequently treating the solid layer with one or more further precursor compounds to form a substantially continuous and conformal solid layer of the perovskite material on the rough surface. There is also provided a photovoltaic device comprising a photoactive region comprising a layer of perovskite material disposed using the method.Type: GrantFiled: June 10, 2016Date of Patent: August 15, 2023Assignee: OXFORD PHOTOVOLTAICS LIMITEDInventors: Brett Akira Kamino, Laura Miranda Perez
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Patent number: 11222924Abstract: There is provided a photovoltaic device that comprises a photoactive region, the photoactive region comprising a perovskite material of general formula A1-xA?xBX3-yX?y, wherein A is a formamidinium cation (HC(NH)2)2+), A? is a caesium cation (Cs+) B is at least one divalent inorganic cation, X is iodide and X is bromide, and x is greater than 0 and equal to or less than 0.4 and y is greater than 0 and less than or equal to 3. There is also provided a method of producing a photovoltaic device comprising a photoactive region comprising the perovskite material, and formulations for use in the formation of the perovskite material.Type: GrantFiled: March 6, 2020Date of Patent: January 11, 2022Assignee: OXFORD PHOTOVOLTAICS LIMITEDInventors: Brett Akira Kamino, Laura Miranda Perez
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Patent number: 10777364Abstract: A formulation for use in the preferential formation of thin films of a perovskite material AMX3 with a certain required crystalline structure, wherein said formulation comprises two or more compounds which between them comprise one or more first organic cations A; one or more metal cations M; one or more second cations A?; one or more first anions X and one or more second anions X?.Type: GrantFiled: October 16, 2019Date of Patent: September 15, 2020Assignee: OXFORD PHOTOVOLTAICS LIMITEDInventors: Nicola Beaumont, Brett Akira Kamino, Benjamin Langley, Edward James William Crossland
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Publication number: 20200279890Abstract: There is provided a photovoltaic device that comprises a photoactive region, the photoactive region comprising a perovskite material of general formula A1-xA?xBX3-yX?y, wherein A is a formamidinium cation (HC(NH)2)2+), A? is a caesium cation (Cs+) B is at least one divalent inorganic cation, X is iodide and X is bromide, and x is greater than 0 and equal to or less than 0.4 and y is greater than 0 and less than or equal to 3. There is also provided a method of producing a photovoltaic device comprising a photoactive region comprising the perovskite material, and formulations for use in the formation of the perovskite material.Type: ApplicationFiled: March 6, 2020Publication date: September 3, 2020Inventors: Brett Akira KAMINO, Laura Miranda PEREZ
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Patent number: 10622409Abstract: There is provided a photovoltaic device that comprises a photoactive region, the photoactive region comprising a perovskite material of general formula A1?xA?xBX3?yX?y wherein A is a formamidinium cation ((HC(NH2)2)+), A? is a caesium cation (Cs+), B is at least one divalent inorganic cation, X is iodide and X? is bromide, and x is greater than 0 and equal to or less than 0.4 and y is greater than 0 and less than or equal to 3. There is also provided a method of producing a photovoltaic device comprising a photoactive region comprising the perovskite material, and formulations for use in the formation of the perovskite material.Type: GrantFiled: June 10, 2016Date of Patent: April 14, 2020Assignee: OXFORD PHOTOVOLTAICS LIMITEDInventors: Brett Akira Kamino, Laura Miranda Perez
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Patent number: 10593487Abstract: A formulation for use in the preferential formation of thin films of a perovskite material AMX 3 with a certain required crystalline structure, wherein said formulation comprises two or more compounds which between them comprise one or more first organic cations A; one or more metalcations M; one or more second cations A?; one or more first anions X and one or more second anions X?.Type: GrantFiled: September 2, 2015Date of Patent: March 17, 2020Assignee: OXFORD PHOTOVOLTAICS LIMITEDInventors: Nicola Beaumont, Brett Akira Kamino, Benjamin Langley, Edward James William Crossland
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Publication number: 20200051752Abstract: A formulation for use in the preferential formation of thin films of a perovskite material AMX3 with a certain required crystalline structure, wherein said formulation comprises two or more compounds which between them comprise one or more first organic cations A; one or more metal cations M; one or more second cations A?; one or more first anions X and one or more second anions X?.Type: ApplicationFiled: October 16, 2019Publication date: February 13, 2020Inventors: Nicola BEAUMONT, Brett Akira KAMINO, Benjamin LANGLEY, Edward James William CROSSLAND
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Publication number: 20180174761Abstract: There is provided a method of producing a photovoltaic device comprising a photoactive region comprising a layer of perovskite material, wherein the layer of perovskite material is disposed on a surface that has a roughness average (Ra) or root mean square roughness (Rrms) of greater than or equal to 50 nm. The method comprises using vapour deposition to deposit a substantially continuous and conformal solid layer comprising one or more initial precursor compounds of the perovskite material, and subsequently treating the solid layer with one or more further precursor compounds to form a substantially continuous and conformal solid layer of the perovskite material on the rough surface. There is also provided a photovoltaic device comprising a photoactive region comprising a layer of perovskite material disposed using the method.Type: ApplicationFiled: June 10, 2016Publication date: June 21, 2018Inventors: Brett Akira KAMINO, Laura Miranda PEREZ
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Publication number: 20180166504Abstract: There is provided a photovoltaic device that comprises a photoactive region, the photoactive region comprising a perovskite material of general formula A1-xA?xBX3-yX?, wherein A is a formamidinium cation (HC(NH)2)2+), A? is a caesium cation (Cs+)B is at least one divalent inorganic cation, X is iodide and X? is bromide, and x is greater than 0 and equal to or less than 0.4 and y is greater than 0 and less than or equal to 3. There is also provided a method of producing a photovoltaic device comprising a photoactive region comprising the perovskite material, and formulations for use in the formation of the perovskite material.Type: ApplicationFiled: June 10, 2016Publication date: June 14, 2018Inventors: Brett Akira KAMINO, Laura Miranda PEREZ
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Publication number: 20170358398Abstract: There is provided a photovoltaic device that comprises a front electrode, a back electrode, and disposed between the front electrode and the back electrode, an electron transporter region comprising an electron transporter layer; a hole transporter region comprising a hole transporter layer, and a layer of perovskite semiconductor disposed between and in contact with the electron transporter layer and the hole transporter layer. The electron transporter region is nearest to the front electrode and the hole transporter region is nearest to the back electrode, and the electron transporter layer comprises any of a chalcogenide material and an organic material and has a thickness of at least 2 nm.Type: ApplicationFiled: November 11, 2015Publication date: December 14, 2017Applicant: Oxford Photovoltaics LimitedInventors: Nicola BEAUMONT, Brett Akira KAMINO, Benjamin LANGLEY, Edward James William CROSSLAND, Henry James SNAITH
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Publication number: 20170243699Abstract: A formulation for use in the preferential formation of thin films of a perovskite material AMX 3 with a certain required crystalline structure, wherein said formulation comprises two or more compounds which between them comprise one or more first organic cations A; one or more metalcations M; one or more second cations A?; one or more first anions X and one or more second anions X?.Type: ApplicationFiled: September 2, 2015Publication date: August 24, 2017Inventors: Nicola BEAUMONT, Brett Akira KAMINO, Benjamin LANGLEY, Edward James William CROSSLAND
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Patent number: 8650890Abstract: A closed space forming unit (41-48) forms a closed space (37, 38) around an adsorption member (51, 52) supporting thereon an adsorbent for desorbing and adsorbing moisture. An active species generating unit (101, 102) supplies active species, for decomposing odorous components, into the closed space (37, 38).Type: GrantFiled: June 10, 2008Date of Patent: February 18, 2014Assignee: Daikin Industries, Ltd.Inventors: Akira Kamino, Nobuki Matsui
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Patent number: 8240048Abstract: An apparatus (20) for manufacturing an adsorption heat exchanger includes a storage tank (35) for storing a source liquid prepared by dispersion of an adsorbent in a liquid binder, a support member (30) for supporting a heat exchanger main body (40), and a shaft member (21). The heat exchanger main body (40) is rotated around the shaft member (21) extending along the direction in which a plurality of fins (57) are arrayed. When the heat exchanger main body (40) is rotated in the source liquid, the source liquid is distributed throughout the entire area of the void between each adjacent pair of the fins (57) whereby the source liquid is adhered to the entire surface area of each of the fins (57). On the other hand, when the heat exchanger main body (40) is rotated in the air, excess source liquid remaining in the void between each adjacent pair of the fins (57) is scattered away therefrom, and a layer of the source liquid is formed throughout the entire surface area of each of the fins (57).Type: GrantFiled: June 23, 2006Date of Patent: August 14, 2012Assignee: Daikin Industries, Ltd.Inventors: Takahisa Sueoka, Hirohiko Matsushita, Akira Kamino
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Publication number: 20100170281Abstract: A closed space forming unit (41-48) forms a closed space (37, 38) around an adsorption member (51, 52) supporting thereon an adsorbent for desorbing and adsorbing moisture. An active species generating unit (101, 102) supplies active species, for decomposing odorous components, into the closed space (37, 38).Type: ApplicationFiled: June 10, 2008Publication date: July 8, 2010Inventors: Akira Kamino, Nobuki Matsui
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Patent number: 7596961Abstract: Disclosed is a dehumidification unit which comprises alternate laminations of an adsorption element (1) provided with a plurality of first air ventilation passages (3) and a cooling element (2) provided with a plurality of second air ventilation passages (4). In the dehumidification unit, the cooling element (2) is provided, at a planewise inner area thereof, with an opening (24), thereby being shaped like a frame. Cooling air (Ab) is passed through the opening (24). With such configuration, the length of the second air ventilation passages (4) becomes shorter by an amount corresponding to the formation of the opening (24). Consequently, the pressure loss of the cooling air (Ab) is reduced and its flow rate increases accordingly. In addition, at the opening's (24) area, the cooling air (Ab) is brought into direct contact with the adsorption element's (1) side, and the efficiency of heat transfer therebetween is improved.Type: GrantFiled: July 24, 2002Date of Patent: October 6, 2009Assignee: Daikin Industries, Ltd.Inventors: Takahisa Sueoka, Guannan Xi, Akira Kamino
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Publication number: 20090126397Abstract: An apparatus (20) for manufacturing an adsorption heat exchanger includes a storage tank (35) for storing a source liquid prepared by dispersion of an adsorbent in a liquid binder, a support member (30) for supporting a heat exchanger main body (40), and a shaft member (21). The heat exchanger main body (40) is rotated around the shaft member (21) extending along the direction in which a plurality of fins (57) are arrayed. When the heat exchanger main body (40) is rotated in the source liquid, the source liquid is distributed throughout the entire area of the void between each adjacent pair of the fins (57) whereby the source liquid is adhered to the entire surface area of each of the fins (57). On the other hand, when the heat exchanger main body (40) is rotated in the air, excess source liquid remaining in the void between each adjacent pair of the fins (57) is scattered away therefrom, and a layer of the source liquid is formed throughout the entire surface area of each of the fins (57).Type: ApplicationFiled: June 23, 2006Publication date: May 21, 2009Inventors: Takahisa Sueoka, Hirohiko Matsushita, Akira Kamino
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Patent number: 7470311Abstract: A dehumidification unit comprised of alternate laminations of an adsorption element which supports an adsorbent and which is provided with a first air ventilation passage and a cooling element, which is provided with a second air ventilation passage. The first air ventilation passage of the adsorption element and the second air ventilation passage of the cooling element are adjacently formed, with a single plate member lying between the first and second air ventilation passages. As a result of such arrangement, as compared with a structure formed with two plate members lying therebetween second air ventilation passages, the performance of heat transfer between the air ventilation passages is further improved, whereby the dehumidification capability of the dehumidification unit is maintained at high levels over a long period of time.Type: GrantFiled: July 22, 2002Date of Patent: December 30, 2008Assignee: Daikin Industries, Ltd.Inventors: Takahisa Sueoka, Guannan Xi, Akira Kamino
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Patent number: 7082781Abstract: Disclosed is an air conditioning apparatus which is provided with two adsorption elements (81, 82). The air conditioning apparatus repeats in alternation an operation in which the second adsorption element (82) is regenerated and, at the same time, air is dehumidified by the first adsorption element (81), and an operation in which the first adsorption element (81) is regenerated and, at same time, air is dehumidified by the second adsorption element (82). Additionally, the air conditioning apparatus includes a refrigerant circuit. The refrigerant circuit performs a refrigeration cycle in which a regenerative heat exchanger (92) operates as a condenser and a first cooling heat exchanger (93) or a second cooling heat exchanger (94) operates as an evaporator. For example, air, which has robbed heat of adsorption in the first adsorption element (81), is further heated by the regenerative heat exchanger (92) and is introduced into the second adsorption element (82).Type: GrantFiled: July 18, 2002Date of Patent: August 1, 2006Assignee: Daikin Industries, Ltd.Inventors: Yoshimasa Kikuchi, Tomohiro Yabu, Akira Kamino
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Publication number: 20060086125Abstract: In a dehumidification unit comprising alternate laminations of an adsorption element (1) which supports an adsorbent and which is provided with a first air ventilation passage (3) and a cooling element (2) which is provided with a second air ventilation passage (4), the first air ventilation passage (3) of the adsorption element (1) and the second air ventilation passage (4) of the cooling element (2) are adjacently formed, with a single plate member (P) lying between the first and second air ventilation passages (3, 4). As a result of such arrangement, as compared with a structure in which the air ventilation passages (3, 4) are adjacently formed with two plate members lying therebetween, the performance of heat transfer between the air ventilation passages (3, 4) is further improved, and the action of absorbing and removing heat of adsorption is promoted, whereby the dehumidification capability of the dehumidification unit is maintained at high levels over a long period of time.Type: ApplicationFiled: July 22, 2002Publication date: April 27, 2006Inventors: Takahisa Sueoka, Guannan Xi, Akira Kamino