Patents by Inventor Henry Ostrowski
Henry Ostrowski 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: 9437221Abstract: A method of making a transducer head disclosed herein includes depositing a spacer layer on an NFT layer of the transducer head, forming an etch stop layer on a spacer layer of a transducer, depositing a cladding layer on the etch stop layer, and milling the cladding layer at a sloped angle such that the milling stops at the etch stop layer.Type: GrantFiled: August 31, 2015Date of Patent: September 6, 2016Assignee: SEAGATE TECHNOLOGY LLCInventors: Lien Lee, Yongjun Zhao, Lijuan Zou, Mark Henry Ostrowski
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Publication number: 20150371669Abstract: A method of making a transducer head disclosed herein includes depositing a spacer layer on an NFT layer of the transducer head, forming an etch stop layer on a spacer layer of a transducer, depositing a cladding layer on the etch stop layer, and milling the cladding layer at a sloped angle such that the milling stops at the etch stop layer.Type: ApplicationFiled: August 31, 2015Publication date: December 24, 2015Inventors: Lien Lee, Yongjun Zhao, Lijuan Zou, Mark Henry Ostrowski
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Patent number: 9142231Abstract: A method of making a transducer head disclosed herein includes depositing a spacer layer on an NFT layer of the transducer head, forming an etch stop layer on a spacer layer of a transducer, depositing a cladding layer on the etch stop layer, and milling the cladding layer at a sloped angle such that the milling stops at the etch stop layer.Type: GrantFiled: March 11, 2013Date of Patent: September 22, 2015Assignee: SEAGATE TECHNOLOGY LLCInventors: Yongjun Zhao, Lien Lee, Lijuan Zou, Mark Henry Ostrowski
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Patent number: 8934198Abstract: An apparatus including a near field transducer positioned adjacent to an air bearing surface, the near field transducer comprising silver (Ag) and at least one other element or compound; a first magnetic pole; and a heat sink positioned between the first magnetic pole and the near field transducer, wherein the heat sink includes: rhodium (Rh) or an alloy thereof; ruthenium (Ru) or an alloy thereof; titanium (Ti) or an alloy thereof; tantalum (Ta) or an alloy thereof; tungsten (W) or an alloy thereof; borides; nitrides; transition metal oxides; or palladium (Pd) or an alloy thereof.Type: GrantFiled: October 24, 2013Date of Patent: January 13, 2015Assignee: Seagate Technology LLCInventors: Jie Zou, Kaizhong Gao, William Albert Challener, Mark Henry Ostrowski, Vankateswara Rao Inturi, Tong Zhao, Michael Christopher Kautzky
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Patent number: 8842391Abstract: An apparatus including a near field transducer positioned adjacent to an air bearing surface, the near field transducer including an electrically conductive nitride; a first magnetic pole; and a heat sink, a diffusion barrier layer, or both positioned between the first magnetic pole and the near field transducer, wherein the heat sink, the diffusion barrier or both include rhodium (Rh) or an alloy thereof; ruthenium (Ru) or an alloy thereof titanium (Ti) or an alloy thereof tantalum (Ta) or an alloy thereof tungsten (W) or an alloy thereof borides; nitrides; transition metal oxides; or palladium (Pd) or an alloy thereof.Type: GrantFiled: October 24, 2013Date of Patent: September 23, 2014Assignee: Seagate Technology LLCInventors: Jie Zou, Kaizhong Gao, William Albert Challener, Mark Henry Ostrowski, Venkateswara Rao Inturi, Tong Zhao, Michael Christopher Kautzky
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Publication number: 20140254339Abstract: A method of making a transducer head disclosed herein includes depositing a spacer layer on an NFT layer of the transducer head, forming an etch stop layer on a spacer layer of a transducer, depositing a cladding layer on the etch stop layer, and milling the cladding layer at a sloped angle such that the milling stops at the etch stop layer.Type: ApplicationFiled: March 11, 2013Publication date: September 11, 2014Inventors: Yongjun Zhao, Lien Lee, Lijuan Zou, Mark Henry Ostrowski
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Patent number: 8670215Abstract: An apparatus includes a near field transducer positioned adjacent to an air bearing surface, a first magnetic pole, a heat sink positioned between the first magnetic pole and the near field transducer, and a diffusion barrier positioned between the near field transducer and the first magnetic pole. The diffusion barrier can be positioned adjacent to the magnetic pole or the near field transducer.Type: GrantFiled: June 27, 2013Date of Patent: March 11, 2014Assignee: Seagate Technology LLCInventors: Jie Zou, Kaizhong Gao, William Albert Challener, Mark Henry Ostrowski, Venkateswara Rao Inturi, Tong Zhao, Michael Christopher Kautzky
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Publication number: 20140050057Abstract: An apparatus including a near field transducer positioned adjacent to an air bearing surface, the near field transducer comprising silver (Ag) and at least one other element or compound; a first magnetic pole; and a heat sink positioned between the first magnetic pole and the near field transducer, wherein the heat sink includes: rhodium (Rh) or an alloy thereof; ruthenium (Ru) or an alloy thereof; titanium (Ti) or an alloy thereof; tantalum (Ta) or an alloy thereof; tungsten (W) or an alloy thereof; borides; nitrides; transition metal oxides; or palladium (Pd) or an alloy thereof.Type: ApplicationFiled: October 24, 2013Publication date: February 20, 2014Applicant: SEAGATE TECHNOLOGY LLCInventors: Jie Zou, Kaizhong Gao, William Albert Challener, Mark Henry Ostrowski, Venkateswara Rao Inturi, Tong Zhao, Michael Christopher Kautzky
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Publication number: 20140050058Abstract: An apparatus including a near field transducer positioned adjacent to an air bearing surface, the near field transducer including an electrically conductive nitride; a first magnetic pole; and a heat sink, a diffusion barrier layer, or both positioned between the first magnetic pole and the near field transducer, wherein the heat sink, the diffusion barrier or both include rhodium (Rh) or an alloy thereof; ruthenium (Ru) or an alloy thereof titanium (Ti) or an alloy thereof tantalum (Ta) or an alloy thereof tungsten (W) or an alloy thereof borides; nitrides; transition metal oxides; or palladium (Pd) or an alloy thereof.Type: ApplicationFiled: October 24, 2013Publication date: February 20, 2014Applicant: SEAGATE TECHNOLOGY LLCInventors: Jie Zou, Kaizhong Gao, William Albert Challener, Mark Henry Ostrowski, Venkateswara Rao Inturi, Tong Zhao, Michael Christopher Kautzky
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Publication number: 20130343167Abstract: An apparatus includes a near field transducer positioned adjacent to an air bearing surface, a first magnetic pole, a heat sink positioned between the first magnetic pole and the near field transducer, and a diffusion barrier positioned between the near field transducer and the first magnetic pole. The diffusion barrier can be positioned adjacent to the magnetic pole or the near field transducer.Type: ApplicationFiled: June 27, 2013Publication date: December 26, 2013Inventors: Jie Zou, Kaizhong Gao, William Albert Challener, Mark Henry Ostrowski, Venkateswara Rao Inturi, Tong Zhao, Michael Christopher Kautzky
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Patent number: 8576673Abstract: An apparatus includes a waveguide having a core layer, a near field transducer having an end positioned adjacent to a first surface, a first magnetic pole having an end positioned adjacent to the first surface, and a side lobe blocker adjacent to the first surface and having portions on opposite sides of the first magnetic pole and the near field transducer, wherein the side lobe blocker forms an aperture at an end of the core layer adjacent to the first surface.Type: GrantFiled: October 25, 2011Date of Patent: November 5, 2013Assignee: Seagate Technology LLCInventors: Mark Henry Ostrowski, Jie Zou, Amit Itagi, Kaizhong Gao
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Patent number: 8514671Abstract: A slider may have a first surface on an air bearing surface (ABS) and a laser recess formed in a second surface of the slider, opposite the first surface. A laser can then be positioned in the laser recess with the laser extending from the slider to a top plane. A stud may be formed adjacent to and separated from the laser on the second surface of the slider with the stud extending from the second surface of the slider to the top plane.Type: GrantFiled: July 29, 2011Date of Patent: August 20, 2013Assignee: Seagate Technology LLCInventors: Yongjun Zhao, Mike Allen Seigler, Mark Henry Ostrowski
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Patent number: 8477454Abstract: An apparatus includes a near field transducer positioned adjacent to an air bearing surface, a first magnetic pole, a heat sink positioned between the first magnetic pole and the near field transducer, and a diffusion barrier positioned between the near field transducer and the first magnetic pole. The diffusion barrier can be positioned adjacent to the magnetic pole or the near field transducer.Type: GrantFiled: November 15, 2012Date of Patent: July 2, 2013Assignee: Seagate Technology LLCInventors: Jie Zou, Kaizhong Gao, William Albert Challener, Mark Henry Ostrowski, Venkateswara Rao Inturi, Tong Zhao, Michael Christopher Kautzky
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Publication number: 20130100783Abstract: An apparatus includes a waveguide having a core layer, a near field transducer having an end positioned adjacent to a first surface, a first magnetic pole having an end positioned adjacent to the first surface, and a side lobe blocker adjacent to the first surface and having portions on opposite sides of the first magnetic pole and the near field transducer, wherein the side lobe blocker forms an aperture at an end of the core layer adjacent to the first surface.Type: ApplicationFiled: October 25, 2011Publication date: April 25, 2013Applicant: SEAGATE TECHNOLOGY LLCInventors: Mark Henry Ostrowski, Jie Zou, Amit Itagi, Kaizhong Gao
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Publication number: 20130028060Abstract: A slider may have a first surface on an air bearing surface (ABS) and a laser recess formed in a second surface of the slider, opposite the first surface. A laser can then be positioned in the laser recess with the laser extending from the slider to a top plane. A stud may be formed adjacent to and separated from the laser on the second surface of the slider with the stud extending from the second surface of the slider to the top plane.Type: ApplicationFiled: July 29, 2011Publication date: January 31, 2013Applicant: SEAGATE TECHNOLOGY LLCInventors: Yongjun Zhao, Mike Allen Seigler, Mark Henry Ostrowski
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Patent number: 8339740Abstract: An apparatus includes a near field transducer positioned adjacent to an air bearing surface, a first magnetic pole, a heat sink positioned between the first magnetic pole and the near field transducer, and a diffusion barrier positioned between the near field transducer and the first magnetic pole. The diffusion barrier can be positioned adjacent to the magnetic pole or the near field transducer.Type: GrantFiled: February 23, 2011Date of Patent: December 25, 2012Assignee: Seagate Technology LLCInventors: Jie Zou, Kaizhong Gao, William Albert Challener, Mark Henry Ostrowski, Venkateswara Rao Inturi, Tong Zhao, Michael Christopher Kautzky
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Patent number: 8318030Abstract: A method of fabricating a magnetic device is described. A mask removing layer is formed on a layered sensing stack and a hard mask layer is formed on the mask removing layer. A first reactive ion etch is performed with a non-oxygen-based chemistry to define the hard mask layer using an imaged layer formed on the hard mask layer as a mask. A second reactive ion etch is performed with an oxygen-based chemistry to define the mask removing stop layer using the defined hard mask layer as a mask. A third reactive ion etch is performed to define the layered sensing stack using the hard mask layer as a mask. The third reactive ion etch includes an etching chemistry that performs at a lower etching rate on the hard mask layer than on the layered sensing stack.Type: GrantFiled: July 13, 2009Date of Patent: November 27, 2012Assignee: Seagate Technology LLCInventors: Xilin Peng, Stacey C. Wakeham, Yifan Zhang, Zhongyan Wang, Konstantin R. Nikolaev, Mark Henry Ostrowski, Yonghua Chen, Juren Ding
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Publication number: 20120045662Abstract: An apparatus includes a near field transducer positioned adjacent to an air bearing surface, a first magnetic pole, a heat sink positioned between the first magnetic pole and the near field transducer, and a diffusion barrier positioned between the near field transducer and the first magnetic pole. The diffusion barrier can be positioned adjacent to the magnetic pole or the near field transducer.Type: ApplicationFiled: February 23, 2011Publication date: February 23, 2012Applicant: Seagate Technology LLCInventors: Jie Zou, Kaizhong Gao, William Albert Challener, Mark Henry Ostrowski, Venkateswara Rao Inturi, Tong Zhao, Michael Christopher Kautzky
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Publication number: 20110006033Abstract: A method of fabricating a magnetic device is described. A mask removing layer is formed on a layered sensing stack and a hard mask layer is formed on the mask removing layer. A first reactive ion etch is performed with a non-oxygen-based chemistry to define the hard mask layer using an imaged layer formed on the hard mask layer as a mask. A second reactive ion etch is performed with an oxygen-based chemistry to define the mask removing stop layer using the defined hard mask layer as a mask. A third reactive ion etch is performed to define the layered sensing stack using the hard mask layer as a mask. The third reactive ion etch includes an etching chemistry that performs at a lower etching rate on the hard mask layer than on the layered sensing stack.Type: ApplicationFiled: July 13, 2009Publication date: January 13, 2011Applicant: SEAGATE TECHNOLOGY LLCInventors: Xilin Peng, Stacey Wakeham, Yifan Zhang, Zhongyan Wang, Konstantin Nikolaev, Mark Henry Ostrowski, Yonghua Chen, Juren Ding
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Publication number: 20070272380Abstract: A method of forming a cellulosic web is discussed, the product of which may, for example, possess at least one of increased softness, strength, and absorbency. The method measures the total anionic charge and controls the net charge of an aqueous stream.Type: ApplicationFiled: June 27, 2007Publication date: November 29, 2007Applicant: Georgia-Pacific Consumer Products LPInventors: Kang Yeh, Gary Worry, Thomas Kershaw, Henry Ostrowski