Patents by Inventor Mingjun Yu

Mingjun Yu 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).

  • Patent number: 12272082
    Abstract: The disclosed method includes acquiring sample models and marking sample feature points; selecting target feature points and regional points on bones; transforming the target feature points and the regional points, and registering the target feature points with the sample feature points; formulating a strategy for assigning impact factors to the sample models, linearly combining all sample models to construct an initial model, and determining initial feature points corresponding to the target feature points in the initial model; adjusting the strategy according to the distance between initial feature points and the target feature points, selecting the strategy corresponding to the minimum distance as an optimal strategy, and determining an optimal initial model; determining a matching point corresponding to each regional point in the optimal initial model, and calculating a transformation relationship; and transmitting all points of the optimal initial model according to the transformation relationship to obt
    Type: Grant
    Filed: March 13, 2024
    Date of Patent: April 8, 2025
    Assignees: Vostro Medical Technology (Tianjin) Co., Ltd, The Fourth Medical Center of PLA General Hospital
    Inventors: Mingjun Fu, Wei Chai, Yuan Zhang, Mingmin Ren, Guoqing Yu, Linshuai He, Mingcheng Shen, Zhongwei Wang, Chengcheng Shang
  • Patent number: 12221366
    Abstract: A method for recycling a copper-containing wastewater from a micro-etching is provided, including: modifying a FeS material with a monomer including both carboxyl and sulfhydryl, a crosslinking agent, and a stabilizing and dispersing agent to obtain a FeS-based pH-responsive material CMC-FeS@HS #SiO2 #COOH, adding the FeS-based pH-responsive material to weakly-acidic copper-containing wastewater from the micro-etching to allow a reaction, and conducting processes such as sulfide precipitation, exchange, adsorption complexation, and flocculation precipitation to finally obtain a precipitate with CuS as a main component. This method makes full use of the pH responsiveness and abundant surface active sites of the FeS-based pH-responsive material, and can control a recovery rate of copper ions in the wastewater at 99.8% or more merely by adjusting a pH value of the copper-containing wastewater from the micro-etching.
    Type: Grant
    Filed: August 14, 2024
    Date of Patent: February 11, 2025
    Assignee: CENTRAL SOUTH UNIVERSITY
    Inventors: Chenyang Zhang, Mingjun Han, Wei Sun, Jie Li, Wenjihao Hu, Heng Yu, Rong Wang, Siyuan Liu, Xiangsong Meng, Pan Chen
  • Publication number: 20250046045
    Abstract: A method for implementing multimedia interaction includes displaying a first user interface that includes a virtual building representing an entrance to a multimedia interaction room and a virtual object that are located in a virtual scene, in response to a movement control operation on the virtual object, displaying that the virtual object moves from a first position to a second position in the virtual scene, and, in response to that the virtual object satisfies an entry condition of the virtual building, displaying a second user interface that includes the virtual building, the virtual object, and an interaction control. The entry condition at least includes the second position being within an effective response range of the virtual building.
    Type: Application
    Filed: October 23, 2024
    Publication date: February 6, 2025
    Inventors: Mingjun TENG, Xiaoyu YU, Zhuocen JIANG, Yingyuan CAI, Zhao LI, Feng LI, Yizhou DU, Zixiang ZHAO, Zekai CHEN, Jianhui PAN, Geng TIAN
  • Publication number: 20230059099
    Abstract: Disclosed herein are embodiments of a heat-assisted magnetic recording (HAMR) head that includes a near-field transducer (NFT) with a trailing bevel. Also disclosed are sliders and data storage devices comprising those HAMR heads, and methods of manufacturing HAMR heads with NFTs having trailing bevels. A HAMR head comprises a waveguide core, a main pole, and a NFT comprising a trailing beveled edge at an acute angle to an air-bearing surface (ABS) of the HAMR head. A method of fabricating a HAMR head comprises depositing material for a NFT, creating a trailing-side surface of the NFT, and creating a trailing beveled edge in the trailing-side surface of the NFT at the ABS, and forming a dielectric layer over the trailing beveled edge. The trailing beveled edge is at an acute angle to the ABS, and a remainder of the trailing-side surface of the NFT is substantially perpendicular to the ABS.
    Type: Application
    Filed: August 17, 2021
    Publication date: February 23, 2023
    Applicant: Western Digital Technologies, Inc.
    Inventors: Mingjun YU, Pradeep SENANAYAKE
  • Patent number: 11574647
    Abstract: Disclosed herein are embodiments of a heat-assisted magnetic recording (HAMR) head that includes a near-field transducer (NFT) with a trailing bevel. Also disclosed are sliders and data storage devices comprising those HAMR heads, and methods of manufacturing HAMR heads with NFTs having trailing bevels. A HAMR head comprises a waveguide core, a main pole, and a NFT comprising a trailing beveled edge at an acute angle to an air-bearing surface (ABS) of the HAMR head. A method of fabricating a HAMR head comprises depositing material for a NFT, creating a trailing-side surface of the NFT, and creating a trailing beveled edge in the trailing-side surface of the NFT at the ABS, and forming a dielectric layer over the trailing beveled edge. The trailing beveled edge is at an acute angle to the ABS, and a remainder of the trailing-side surface of the NFT is substantially perpendicular to the ABS.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: February 7, 2023
    Assignee: Western Digital Technologies, Inc.
    Inventors: Mingjun Yu, Pradeep Senanayake
  • Patent number: 10106885
    Abstract: A magnetic write apparatus includes a pole and a near field transducer. The pole extends in a yoke direction from a media facing surface where the yoke direction extends perpendicular to the media facing surface. The near field transducer includes a near field transducer cap and a near field transducer nose. The near field transducer nose is separated from the pole by the near field transducer cap and a dielectric gap and the near field transducer nose comprises a bevel surface that forms a bevel angle with a plane extending in the yoke direction.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: October 23, 2018
    Assignee: WESTERN DIGITAL (FREMONT), LLC
    Inventors: Shawn M. Tanner, Mingjun Yu, Min Zheng, Kyung Lee, Tsung Yuan Chen
  • Publication number: 20180005650
    Abstract: A method for fabricating a near-field transducer (NFT) for a heat assisted magnetic recording (HAMR) write apparatus is described. The HAMR write apparatus is coupled with a laser for providing energy and has a media-facing surface (MFS) configured to reside in proximity to a media during use. The method includes providing a stack on an underlayer. The stack includes an endpoint detection layer, an optical layer and an etchable layer. The optical layer is between the etchable and endpoint detection layers. The etchable layer is patterned to form a mask. A portion of the optical layer is removed. A remaining portion of the optical layer has a bevel at a bevel angle from the MFS location. The bevel angle is nonzero and acute. The NFT is provided such that the NFT has an NFT front surface adjoining the bevel and at the bevel angle from the MFS location.
    Type: Application
    Filed: September 13, 2017
    Publication date: January 4, 2018
    Inventors: Shawn M. Tanner, Mingjun Yu, Min Zheng, Kyung Lee, Tsung Yuan Chen
  • Patent number: 9786304
    Abstract: A method for fabricating a near-field transducer (NFT) for a heat assisted magnetic recording (HAMR) write apparatus is described. The HAMR write apparatus is coupled with a laser for providing energy and has a media-facing surface (MFS) configured to reside in proximity to a media during use. The method includes providing a stack on an underlayer. The stack includes an endpoint detection layer, an optical layer and an etchable layer. The optical layer is between the etchable and endpoint detection layers. The etchable layer is patterned to form a mask. A portion of the optical layer is removed. A remaining portion of the optical layer has a bevel at a bevel angle from the MFS location. The bevel angle is nonzero and acute. The NFT is provided such that the NFT has an NFT front surface adjoining the bevel and at the bevel angle from the MFS location.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: October 10, 2017
    Assignee: WESTERN DIGITAL (FREMONT), LLC
    Inventors: Shawn M. Tanner, Mingjun Yu, Min Zheng, Kyung Lee, Tsung Yuan Chen
  • Patent number: 9508363
    Abstract: A method provides a magnetic transducer having an air-bearing surface (ABS) location. An intermediate layer having a substantially flat bottom surface is provided. A trench is formed in the intermediate layer. The trench is wider in yoke region than in the pole tip region. The trench has a first depth in the yoke region and a second depth less than the first depth in the pole tip region. A portion of the intermediate layer is at the bottom of the trench at the ABS location. A nonmagnetic layer is provided. The nonmagnetic layer fills part of the trench in the pole tip region such that the trench has a third depth less than the second depth at the ABS location. A main pole is provided. The main pole has a leading bevel adjacent to nonmagnetic layer in the portion of the pole tip region of the trench.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: November 29, 2016
    Assignee: WESTERN DIGITAL (FREMONT), LLC
    Inventors: Mingjun Yu, Donghong Li, Lien-Chang Wang, Lieping Zhong, Tao Pan
  • Publication number: 20150248899
    Abstract: A method provides a magnetic transducer having an air-bearing surface. The method includes providing a main pole that has a plurality of sidewalls. The step of providing the main pole includes providing a trailing bevel. A side shield after the trailing bevel has been provided.
    Type: Application
    Filed: June 9, 2014
    Publication date: September 3, 2015
    Inventors: MINGJUN YU, DONGHONG LI, LIEN-CHANG WANG, LIEPING ZHONG, TAO PAN
  • Patent number: 9001467
    Abstract: A method and system provide a magnetic transducer having an air-bearing surface (ABS) location, a pole and a gap. The pole has a bottom and a top wider than the bottom. The gap is on the top of the pole and at least as wide as the top of the pole such that an overhang is formed between a top edge of the gap and a bottom edge of the bottom of the pole. The method includes providing a plurality of bottom antireflective coatings (BARCs). The plurality of BARCs form a BARC layer that fills the overhang. A shield photoresist mask is provided on at least a portion of the BARC layer. The shield, which includes at least one side shield, is provided.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: April 7, 2015
    Assignee: Western Digital (Fremont), LLC
    Inventors: Xianzhong Zeng, Mingjun Yu, Hai Sun, Donghong Li
  • Patent number: 7141318
    Abstract: Magnetic recording media having improved magnetic properties such as an improved signal-to-noise ratio. The recording media includes a magnetic recording layer and an underlayer disposed beneath the magnetic recording layer. The underlayer is a Cr-based alloy such as CrMo that includes an additive selected from boron (B), silicon (Si) and boron nitride (BN). The additive preferentially segregates to the grain boundaries in the underlayer to reduce the grain size and grain size distribution in the underlayer.
    Type: Grant
    Filed: June 6, 2003
    Date of Patent: November 28, 2006
    Assignee: Maxtor Corporation
    Inventors: Gunn Choe, Mingjun Yu