Patents by Inventor Hari Atkuri
Hari Atkuri 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: 20240092064Abstract: An electrical characteristic of a privacy glazing structure and indicative of a health of the privacy glazing structure can be measured at a first time and at a second time later than the first time. In response to detecting a change in the electrical characteristic indicating a change in the health of the privacy glazing structure, one or more parameters of an electrical drive signal can be adjusted to compensate for the change in the health of the privacy glazing structure. The electrical characteristic can be measured at a plurality of times after the second time and compared to the electrical characteristic measured at the first time. If, at any of the plurality of times, the measured electrical characteristic differs from the electrical characteristic measured at the first time by more than a threshold amount, one or more parameters of the electrical drive signal can be adjusted.Type: ApplicationFiled: November 28, 2023Publication date: March 21, 2024Inventors: Nicholas Schleder, Hari Atkuri, Andrew DeMiglio, Michael Eul
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Publication number: 20240027865Abstract: A privacy glazing structure may be fabricated from multiple panes of transparent material that hold an optically active material and also define a between-pane space that is separated from a surrounding environment for thermal insulating properties. The privacy glazing structure may include various functional coatings and intermediate films to enhance the performance and/or life span of the structure. For example, the privacy glazing structure may include a low emissivity coating and a laminate layer positioned between an optically active layer and an exterior environment exposed to sunlight. The low emissivity coating and laminate layer may work in combination to effectively protect the optically active layer from sunlight degradation. Additionally or alternatively, the laminate layer may impart safety and impact resistance properties to the structure.Type: ApplicationFiled: October 2, 2023Publication date: January 25, 2024Inventors: Nicolas Le Houx, Hari Atkuri, Andrew DeMiglio, Eric Bjergaard
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Publication number: 20230400724Abstract: A privacy glazing structure may include an electrically controllable optically active material, such as a liquid crystal material, sandwiched between a flexible substrate and a rigid substrate. The flexible substrate and the rigid substrate may each have a conductive layer deposited on the surface facing the optically active material. The flexible substrate may be bonded about its perimeter to the rigid substrate and may be sufficiently flexible to conform to non-planarity of the rigid substrate. As a result, the flexible substrate may adopt the surface contour of the rigid substrate to maintain a uniform thickness of optically active material between the flexible substrate and the rigid substrate.Type: ApplicationFiled: August 28, 2023Publication date: December 14, 2023Inventors: Andrew DeMiglio, Eric Bjergaard, Hari Atkuri, Nicholas Schleder
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Patent number: 11826986Abstract: An electrical characteristic of a privacy glazing structure and indicative of a health of the privacy glazing structure can be measured at a first time and at a second time later than the first time. In response to detecting a change in the electrical characteristic indicating a change in the health of the privacy glazing structure, one or more parameters of an electrical drive signal can be adjusted to compensate for the change in the health of the privacy glazing structure. The electrical characteristic can be measured at a plurality of times after the second time and compared to the electrical characteristic measured at the first time. If, at any of the plurality of times, the measured electrical characteristic differs from the electrical characteristic measured at the first time by more than a threshold amount, one or more parameters of the electrical drive signal can be adjusted.Type: GrantFiled: May 9, 2022Date of Patent: November 28, 2023Assignee: Cardinal IG CompanyInventors: Nicholas Schleder, Hari Atkuri, Andrew DeMiglio, Michael Eul
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Patent number: 11774825Abstract: A privacy glazing structure may be fabricated from multiple panes of transparent material that hold an optically active material and also define a between-pane space that is separated from a surrounding environment for thermal insulating properties. The privacy glazing structure may include various functional coatings and intermediate films to enhance the performance and/or life span of the structure. For example, the privacy glazing structure may include a low emissivity coating and a laminate layer positioned between an optically active layer and an exterior environment exposed to sunlight. The low emissivity coating and laminate layer may work in combination to effectively protect the optically active layer from sunlight degradation. Additionally or alternatively, the laminate layer may impart safety and impact resistance properties to the structure.Type: GrantFiled: December 14, 2020Date of Patent: October 3, 2023Assignee: Cardinal IG CompanyInventors: Nicolas Le Houx, Hari Atkuri, Andrew DeMiglio, Eric Bjergaard
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Patent number: 11740497Abstract: A privacy glazing structure may include an electrically controllable optically active material, such as a liquid crystal material, sandwiched between a flexible substrate and a rigid substrate. The flexible substrate and the rigid substrate may each have a conductive layer deposited on the surface facing the optically active material. The flexible substrate may be bonded about its perimeter to the rigid substrate and may be sufficiently flexible to conform to non-planarity of the rigid substrate. As a result, the flexible substrate may adopt the surface contour of the rigid substrate to maintain a uniform thickness of optically active material between the flexible substrate and the rigid substrate.Type: GrantFiled: May 17, 2022Date of Patent: August 29, 2023Assignee: Cardinal IG CompanyInventors: Andrew DeMiglio, Eric Bjergaard, Hari Atkuri, Nicholas Schieder
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Publication number: 20230044604Abstract: An electrically dynamic window structure may include first and second panes of transparent material and an electrically controllable optically active material positioned between the two panes. A driver can be electrically connected to electrode layers carried by the two panes. The driver may be configured to alternate between a drive phase in which a drive signal is applied to the electrode layers and an idle phase in which the drive signal is not applied to the electrode layers. The electrically controllable optically active material can maintain its transition state during the idle phase. As a result, the power consumption of the structure may be reduced as compared to if the driver continuously delivers the drive signal.Type: ApplicationFiled: October 17, 2022Publication date: February 9, 2023Inventors: Hari Atkuri, Eric Bjergaard
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Patent number: 11474385Abstract: An electrically dynamic window structure may include first and second panes of transparent material and an electrically controllable optically active material positioned between the two panes. A driver can be electrically connected to electrode layers carried by the two panes. The driver may be configured to alternate between a drive phase in which a drive signal is applied to the electrode layers and an idle phase in which the drive signal is not applied to the electrode layers. The electrically controllable optically active material can maintain its transition state during the idle phase. As a result, the power consumption of the structure may be reduced as compared to if the driver continuously delivers the drive signal.Type: GrantFiled: December 2, 2019Date of Patent: October 18, 2022Assignee: Cardinal IG CompanyInventors: Hari Atkuri, Eric Bjergaard
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Publication number: 20220276525Abstract: A privacy glazing structure may include an electrically controllable optically active material, such as a liquid crystal material, sandwiched between a flexible substrate and a rigid substrate. The flexible substrate and the rigid substrate may each have a conductive layer deposited on the surface facing the optically active material. The flexible substrate may be bonded about its perimeter to the rigid substrate and may be sufficiently flexible to conform to non-planarity of the rigid substrate. As a result, the flexible substrate may adopt the surface contour of the rigid substrate to maintain a uniform thickness of optically active material between the flexible substrate and the rigid substrate.Type: ApplicationFiled: May 17, 2022Publication date: September 1, 2022Inventors: Andrew DeMiglio, Eric Bjergaard, Hari Atkuri, Nicholas Schleder
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Publication number: 20220258456Abstract: An electrical characteristic of a privacy glazing structure and indicative of a health of the privacy glazing structure can be measured at a first time and at a second time later than the first time. In response to detecting a change in the electrical characteristic indicating a change in the health of the privacy glazing structure, one or more parameters of an electrical drive signal can be adjusted to compensate for the change in the health of the privacy glazing structure. The electrical characteristic can be measured at a plurality of times after the second time and compared to the electrical characteristic measured at the first time. If, at any of the plurality of times, the measured electrical characteristic differs from the electrical characteristic measured at the first time by more than a threshold amount, one or more parameters of the electrical drive signal can be adjusted.Type: ApplicationFiled: May 9, 2022Publication date: August 18, 2022Inventors: Nicholas Schleder, Hari Atkuri, Andrew DeMiglio, Michael Eul
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Patent number: 11333912Abstract: A privacy glazing structure may include an electrically controllable optically active material, such as a liquid crystal material, sandwiched between a flexible substrate and a rigid substrate. The flexible substrate and the rigid substrate may each have a conductive layer deposited on the surface facing the optically active material. The flexible substrate may be bonded about its perimeter to the rigid substrate and may be sufficiently flexible to conform to non-planarity of the rigid substrate. As a result, the flexible substrate may adopt the surface contour of the rigid substrate to maintain a uniform thickness of optically active material between the flexible substrate and the rigid substrate.Type: GrantFiled: May 11, 2020Date of Patent: May 17, 2022Assignee: Cardinal IG CompanyInventors: Andrew DeMiglio, Eric Bjergaard, Hari Atkuri, Nicholas Schleder
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Patent number: 11325352Abstract: An electrical characteristic of a privacy glazing structure and indicative of a health of the privacy glazing structure can be measured at a first time and at a second time later than the first time. In response to detecting a change in the electrical characteristic indicating a change in the health of the privacy glazing structure, one or more parameters of an electrical drive signal can be adjusted to compensate for the change in the health of the privacy glazing structure. The electrical characteristic can be measured at a plurality of times after the second time and compared to the electrical characteristic measured at the first time. If, at any of the plurality of times, the measured electrical characteristic differs from the electrical characteristic measured at the first time by more than a threshold amount, one or more parameters of the electrical drive signal can be adjusted.Type: GrantFiled: April 29, 2020Date of Patent: May 10, 2022Assignee: Cardinal IG CompanyInventors: Nicholas Schleder, Hari Atkuri, Andrew DeMiglio, Michael Eul
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Patent number: 11243421Abstract: A driver for an electrically dynamic structure may store and release energy during polarity cycling to improve the energy efficiency of operation. In some examples, the driver includes an energy storage element. In operation, the driver can charge an electrically controllable optically active material to a first operating voltage at a first polarity and subsequently discharge the optically active material during polarity reversal. The driver may store energy released from the optically active material during discharging and subsequently release the energy to charge the optically active material to a second operating voltage at a second polarity different than the first polarity.Type: GrantFiled: May 9, 2019Date of Patent: February 8, 2022Assignee: Cardinal IG CompanyInventors: Nicholas Schleder, Michael Eul, Chad Peters, Hari Atkuri
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Publication number: 20210124228Abstract: A privacy glazing structure may be fabricated from multiple panes of transparent material that hold an optically active material and also define a between-pane space that is separated from a surrounding environment for thermal insulating properties. The privacy glazing structure may include various functional coatings and intermediate films to enhance the performance and/or life span of the structure. For example, the privacy glazing structure may include a low emissivity coating and a laminate layer positioned between an optically active layer and an exterior environment exposed to sunlight. The low emissivity coating and laminate layer may work in combination to effectively protect the optically active layer from sunlight degradation. Additionally or alternatively, the laminate layer may impart safety and impact resistance properties to the structure.Type: ApplicationFiled: December 14, 2020Publication date: April 29, 2021Inventors: Nicolas Le Houx, Hari Atkuri, Andrew DeMiglio, Eric Bjergaard
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Patent number: 10866480Abstract: A privacy glazing structure may be fabricated from multiple panes of transparent material that hold an optically active material and also define a between-pane space that is separated from a surrounding environment for thermal insulating properties. The privacy glazing structure may include various functional coatings and intermediate films to enhance the performance and/or life span of the structure. For example, the privacy glazing structure may include a low emissivity coating and a laminate layer positioned between an optically active layer and an exterior environment exposed to sunlight. The low emissivity coating and laminate layer may work in combination to effectively protect the optically active layer from sunlight degradation. Additionally or alternatively, the laminate layer may impart safety and impact resistance properties to the structure.Type: GrantFiled: April 20, 2018Date of Patent: December 15, 2020Assignee: Cardinal IG CompanyInventors: Nicolas Le Houx, Hari Atkuri, Andrew DeMiglio, Eric Bjergaard
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Publication number: 20200338865Abstract: An electrical characteristic of a privacy glazing structure and indicative of a health of the privacy glazing structure can be measured at a first time and at a second time later than the first time. In response to detecting a change in the electrical characteristic indicating a change in the health of the privacy glazing structure, one or more parameters of an electrical drive signal can be adjusted to compensate for the change in the health of the privacy glazing structure. The electrical characteristic can be measured at a plurality of times after the second time and compared to the electrical characteristic measured at the first time. If, at any of the plurality of times, the measured electrical characteristic differs from the electrical characteristic measured at the first time by more than a threshold amount, one or more parameters of the electrical drive signal can be adjusted.Type: ApplicationFiled: April 29, 2020Publication date: October 29, 2020Inventors: Nicholas Schleder, Hari Atkuri, Andrew DeMiglio, Michael Eul
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Publication number: 20200271981Abstract: A privacy glazing structure may include an electrically controllable optically active material, such as a liquid crystal material, sandwiched between a flexible substrate and a rigid substrate. The flexible substrate and the rigid substrate may each have a conductive layer deposited on the surface facing the optically active material. The flexible substrate may be bonded about its perimeter to the rigid substrate and may be sufficiently flexible to conform to non-planarity of the rigid substrate. As a result, the flexible substrate may adopt the surface contour of the rigid substrate to maintain a uniform thickness of optically active material between the flexible substrate and the rigid substrate.Type: ApplicationFiled: May 11, 2020Publication date: August 27, 2020Inventors: Andrew DeMiglio, Eric Bjergaard, Hari Atkuri, Nicholas Schleder
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Patent number: 10649252Abstract: A privacy glazing structure may include an electrically controllable optically active material, such as a liquid crystal material, sandwiched between a flexible substrate and a rigid substrate. The flexible substrate and the rigid substrate may each have a conductive layer deposited on the surface facing the optically active material. The flexible substrate may be bonded about its perimeter to the rigid substrate and may be sufficiently flexible to conform to non-planarity of the rigid substrate. As a result, the flexible substrate may adopt the surface contour of the rigid substrate to maintain a uniform thickness of optically active material between the flexible substrate and the rigid substrate.Type: GrantFiled: February 8, 2018Date of Patent: May 12, 2020Assignee: Cardinal IG CompanyInventors: Andrew DeMiglio, Eric Bjergaard, Hari Atkuri, Nicholas Schleder
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Publication number: 20190346710Abstract: A driver for an electrically dynamic structure may store and release energy during polarity cycling to improve the energy efficiency of operation. In some examples, the driver includes an energy storage element. In operation, the driver can charge an electrically controllable optically active material to a first operating voltage at a first polarity and subsequently discharge the optically active material during polarity reversal. The driver may store energy released from the optically active material during discharging and subsequently release the energy to charge the optically active material to a second operating voltage at a second polarity different than the first polarity.Type: ApplicationFiled: May 9, 2019Publication date: November 14, 2019Inventors: Nicholas Schleder, Michael Eul, Chad Peters, Hari Atkuri
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Publication number: 20180307111Abstract: A privacy glazing structure may be fabricated from multiple panes of transparent material that hold an optically active material and also define a between-pane space that is separated from a surrounding environment for thermal insulating properties. The privacy glazing structure may include various functional coatings and intermediate films to enhance the performance and/or life span of the structure. For example, the privacy glazing structure may include a low emissivity coating and a laminate layer positioned between an optically active layer and an exterior environment exposed to sunlight. The low emissivity coating and laminate layer may work in combination to effectively protect the optically active layer from sunlight degradation. Additionally or alternatively, the laminate layer may impart safety and impact resistance properties to the structure.Type: ApplicationFiled: April 20, 2018Publication date: October 25, 2018Inventors: Nicolas Le Houx, Hari Atkuri, Andrew DeMiglio, Eric Bjergaard