Patents by Inventor Matthew Aaron Carper
Matthew Aaron Carper 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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Patent number: 11875830Abstract: A data storage device (DSD) includes a base-deck, a disc above the base-deck, and a shaft extending perpendicular from the base-deck. The DSD also includes a head stack assembly (HSA) including a head gimbal assembly having a load beam and a head at a first end of the HSA. The head interacts with a surface of the disc. The HSA also includes a second end movably mounted on the shaft. The DSD additionally includes an elevator that linearly moves the HSA along the shaft to adjust a distance between the load beam and the surface of the disc in response to receiving a feedback signal associated with the interaction of the head with the surface of the disc. The feedback signal is one of a plurality of feedback signals employed by the elevator to adjust the distance between the load beam and the surface of the disc.Type: GrantFiled: April 25, 2022Date of Patent: January 16, 2024Assignee: Seagate Technology LLCInventors: Matthew Aaron Carper, Anil J. Reddy, Brett R. Herdendorf, Riyan Alex Mendonsa
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Publication number: 20220254372Abstract: A data storage device (DSD) includes a base-deck, a disc above the base-deck, and a shaft extending perpendicular from the base-deck. The DSD also includes a head stack assembly (HSA) including a head gimbal assembly having a load beam and a head at a first end of the HSA. The head interacts with a surface of the disc. The HSA also includes a second end movably mounted on the shaft. The DSD additionally includes an elevator that linearly moves the HSA along the shaft to adjust a distance between the load beam and the surface of the disc in response to receiving a feedback signal associated with the interaction of the head with the surface of the disc. The feedback signal is one of a plurality of feedback signals employed by the elevator to adjust the distance between the load beam and the surface of the disc.Type: ApplicationFiled: April 25, 2022Publication date: August 11, 2022Inventors: Matthew Aaron Carper, Anil J. Reddy, Brett R. Herdendorf, Riyan Alex Mendonsa
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Patent number: 11355143Abstract: Described are magnetic recording heads that include an air-bearing surface and that are designed to be useful or potentially useful in two or more different types of fluid atmospheres; also described are related methods of testing the magnetic recording heads and installing the magnetic recording heads in a hard disk drive, as well as hard disk drives that contain a magnetic recording head as described.Type: GrantFiled: June 8, 2020Date of Patent: June 7, 2022Assignee: Seagate Technology LLCInventors: Jiaxi Lu, Matthew Aaron Carper, Abhik Rakshit
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Patent number: 11315592Abstract: A data storage device (DSD) includes a base-deck, a disc above the base-deck, and a shaft extending perpendicular from the base-deck. The DSD also includes a head stack assembly (HSA) including a head gimbal assembly having a load beam and a head at a first end of the HSA. The head interacts with a surface of the disc. The HSA also includes a second end movably mounted on the shaft. The DSD additionally includes an elevator that linearly moves the HSA along the shaft to adjust a distance between the load beam and the surface of the disc in response to receiving a feedback signal associated with the interaction of the head with the surface of the disc. The feedback signal is one of a plurality of feedback signals employed by the elevator to adjust the distance between the load beam and the surface of the disc.Type: GrantFiled: February 10, 2021Date of Patent: April 26, 2022Assignee: Seagate Technology LLCInventors: Matthew Aaron Carper, Anil J. Reddy, Brett R. Herdendorf, Riyan Alex Mendonsa
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Publication number: 20200349971Abstract: Described are magnetic recording heads that include an air-bearing surface and that are designed to be useful or potentially useful in two or more different types of fluid atmospheres; also described are related methods of testing the magnetic recording heads and installing the magnetic recording heads in a hard disk drive, as well as hard disk drives that contain a magnetic recording head as described.Type: ApplicationFiled: June 8, 2020Publication date: November 5, 2020Inventors: Jiaxi Lu, Matthew Aaron Carper, Abhik Rakshit
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Patent number: 10679656Abstract: Described are magnetic recording heads that include an air-bearing surface and that are designed to be useful or potentially useful in two or more different types of fluid atmospheres; also described are related methods of testing the magnetic recording heads and installing the magnetic recording heads in a hard disk drive, as well as hard disk drives that contain a magnetic recording head as described.Type: GrantFiled: May 3, 2019Date of Patent: June 9, 2020Assignee: SEAGATE TECHNOLOGY LLCInventors: Jiaxi Lu, Matthew Aaron Carper, Abhik Rakshit
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Patent number: 8137163Abstract: A disc burnishing head includes an array of burnishing pads and a first and second side rail projecting from a bottom surface of a slider body. The side rails each have an inside surface facing the burnishing pads and an outside surface facing outward. The outside surface of at least the first side rail is serrated. The serrations define a plurality of teeth and notches on the outside surface of the first side rail for cutting, cleaning, and conditioning defects from the surface of a disc.Type: GrantFiled: March 16, 2009Date of Patent: March 20, 2012Assignee: Seagate Technology LLCInventors: Weimin Qian, Igor V. Sytine, Matthew Aaron Carper, Pranesh Swany, Eric K. Dahlin, Hamid F. Ghazvini
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Patent number: 8139323Abstract: An apparatus includes a slider body having a leading edge and an opposite trailing edge, as well as a top face and a bottom face each extending between the leading edge and the trailing edge. The slider body further includes a plurality of protrusions extending from the bottom face, a first recess defined on one of the protrusions, and a sacrificial layer deposited on the slider body in the recess. A bottom surface of the sacrificial layer extends at least as far from the bottom face as bottom surfaces of the plurality of protrusions. In another aspect, a first blocking feature is located at a first uptrack edge on an air bearing surface of a slider, with the first blocking feature being substantially continuous along the first uptrack edge and protruding outwardly from the air bearing surface to reduce particle interaction with the air bearing surface.Type: GrantFiled: February 5, 2010Date of Patent: March 20, 2012Assignee: Seagate Technology LLCInventors: Marsha Anne Huha, Ki Myung Lee, Anil Junuthula Reddy, Ying Dong, Gary Joseph Kunkel, Matthew Aaron Carper, Andrew David Frenz, John L. Brand, Quinn Jay Haddock
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Publication number: 20110195275Abstract: An apparatus includes a slider body having a leading edge and an opposite trailing edge, as well as a top face and a bottom face each extending between the leading edge and the trailing edge. The slider body further includes a plurality of protrusions extending from the bottom face, a first recess defined on one of the protrusions, and a sacrificial layer deposited on the slider body in the recess. A bottom surface of the sacrificial layer extends at least as far from the bottom face as bottom surfaces of the plurality of protrusions. In another aspect, a first blocking feature is located at a first uptrack edge on an air bearing surface of a slider, with the first blocking feature being substantially continuous along the first uptrack edge and protruding outwardly from the air bearing surface to reduce particle interaction with the air bearing surface.Type: ApplicationFiled: February 5, 2010Publication date: August 11, 2011Applicant: SEAGATE TECHNOLOGY LLCInventors: Marsha Anne Huha, Ki Myung Lee, Anil Junuthula Reddy, Ying Dong, Gary Joseph Kunkel, Matthew Aaron Carper, Andrew David Frenz, John L. Brand, Quinn Jay Haddock
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Publication number: 20100233943Abstract: A disc burnishing head includes an array of burnishing pads and a first and second side rail projecting from a bottom surface of a slider body. The side rails each have an inside surface facing the burnishing pads and an outside surface facing outward. The outside surface of at least the first side rail is serrated. The serrations define a plurality of teeth and notches on the outside surface of the first side rail for cutting, cleaning, and conditioning defects from the surface of a disc.Type: ApplicationFiled: March 16, 2009Publication date: September 16, 2010Applicant: Seagate Technology LLCInventors: Weimin Qian, Igor V. Sytine, Matthew Aaron Carper, Pranesh Swany, Eric K. Dahlin, Hamid F. Ghazvini