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Proceedings Papers

Detection of the Asperity Contact Between Sliding Surfaces by Monitoring the Excitation of Resonant Oscillation Using the Fiber Wobbling Method

Shintaro Itoh, Kenji Fukuzawa, Yuya Hamamoto, Hedong Zhang, Yasunaga Mitsuya

Proc. ASME. IJTC2007, ASME/STLE 2007 International Joint Tribology Conference, Parts A and B, 677-679, October 22–24, 2007

Paper No: IJTC2007-44222

DOI: https://doi.org/10.1115/IJTC2007-44222

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Topics: Disks, Excitation, Fibers, Lubricants, Lubrication, Magnetic heads, Magnetic recording, Oscillations, Resonance, Viscoelasticity

Journal Articles

A Numerical Simulation Method to Evaluate the Static and Dynamic Characteristics of Flying Head Sliders on Patterned Disk Surfaces

Takefumi Hayashi, Hideyo Yoshida, Yasunaga Mitsuya

J. Tribol. April 2009, 131(2): 021901.

DOI: https://doi.org/10.1115/1.3063696

Published Online: March 3, 2009

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Topics: Computer simulation, Disks, Lubrication, Pressure, Film thickness, Servomechanisms, Texture (Materials), Shear flow, Magnetic disc storage

Proceedings Papers

Formation of Lubricant “Sierra” at Boundary Between PFPE Solution Dipped and Un-Dipped Zones Over DLC Coated Magnetic Disks

Yasunaga Mitsuya, Keiko Goto, Yoshihiro Hayashi

Proc. ASME. TRIB2002, Magnetic Storage Symposium: Frontiers of Magnetic Hard Disk Drive Tribology and Technology, 27-32, October 27–30, 2002

Paper No: 2002-TRIB-0252

DOI: https://doi.org/10.1115/2002-TRIB-0252

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Topics: Disks, Lubricants, Film thickness, Chain, Coating processes, Coatings

Proceedings Papers

Spreading Characteristics of Monolayer Lubricant Film on Surfaces With Lube Textures

Hedong Zhang, Yasunaga Mitsuya, Natsuko Fukuoka, Kenji Fukuzawa

Proc. ASME. TRIB2003, Magnetic Storage Symposium: Frontiers of Magnetic Hard Disk Drive Tribology and Technology, 77-83, October 26–29, 2003

Paper No: 2003-TRIB-341

DOI: https://doi.org/10.1115/2003-TRIB-341

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Topics: Lubricants, Texture (Materials), Disks, Bonding, Diffusion (Physics), Film thickness, Surface energy, Ultraviolet radiation

Proceedings Papers

Direct Visualization of Molecularly Thin Lubricant Films on Magnetic Disks by Ellipsometric Microscopy With a White Light Source

Kenji Fukuzawa, Akira Nakada, Yasunaga Mitsuya, Hedong Zhang

Proc. ASME. TRIB2004, ASME/STLE 2004 International Joint Tribology Conference, Parts A and B, 1433-1439, October 24–27, 2004

Paper No: TRIB2004-64070

DOI: https://doi.org/10.1115/TRIB2004-64070

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Topics: Disks, Light sources, Lubricants, Microscopy, Visualization, Microscopes, Resolution (Optics), Lasers, Wavelength, Design

Proceedings Papers

A Simulation Method for Spreading Dynamics of Molecularly Thin Lubricant Films on Magnetic Disks Using Bead-Spring Model

Yoichi Tagaya, Yasunaga Mitsuya, Susumu Ogata, Hedong Zhang, Kenji Fukuzawa

Proc. ASME. WTC2005, World Tribology Congress III, Volume 1, 793-794, September 12–16, 2005

Paper No: WTC2005-64393

DOI: https://doi.org/10.1115/WTC2005-64393

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Topics: Disks, Dynamics (Mechanics), Lubricants, Simulation, Springs, Precipitation, Diffusion (Physics)

Proceedings Papers

Comparisons of Friction Characteristics of a Lightly Loaded Pin Sliding Over Magnetic Disks Coated With Polar and Non-Polar PFPE Lubricants

Yinbo He, Yasunaga Mitsuya, Hedong Zhang, Kenji Fukuzawa

Proc. ASME. WTC2005, World Tribology Congress III, Volume 1, 795-796, September 12–16, 2005

Paper No: WTC2005-64395

DOI: https://doi.org/10.1115/WTC2005-64395

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Topics: Disks, Friction, Lubricants, Carbon, Diamonds, Film thickness, Glass, Molecular weight, Rotating disks

Proceedings Papers

Stiffness and Damping of Molecularly Thin PFPE Lubricant Bridging Between Magnetic Disk and Diamond Probe Tip

Yasunaga Mitsuya, Yasuji Ohshima, Hedong Zhang, Kei Aoyama, Toshiyuki Kawai, Kenji Fukuzawa

Proc. ASME. WTC2005, World Tribology Congress III, Volume 1, 679-680, September 12–16, 2005

Paper No: WTC2005-63058

DOI: https://doi.org/10.1115/WTC2005-63058

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Topics: Damping, Diamonds, Disks, Lubricants, Probes, Stiffness, Bridges (Structures), Elastic constants, Elongation, Regression analysis

Proceedings Papers

Flying Characteristics of Head Sliders on Patterned Disk Surfaces

Takefumi Hayashi, Hideyo Yoshida, Yasunaga Mitsuya

Proc. ASME. WTC2005, World Tribology Congress III, Volume 1, 783-784, September 12–16, 2005

Paper No: WTC2005-64390

DOI: https://doi.org/10.1115/WTC2005-64390

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Topics: Disks, Computer simulation, Film thickness, Lubrication, Texture (Materials)

Proceedings Papers

Simulations for Nanoscale Meniscus Formation and Rupture by Using Molecular Dynamics

Susumu Ogata, Yasunaga Mitsuya, Hedong Zhang, Kenji Fukuzawa

Proc. ASME. WTC2005, World Tribology Congress III, Volume 2, 769-770, September 12–16, 2005

Paper No: WTC2005-63607

DOI: https://doi.org/10.1115/WTC2005-63607

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Topics: Elongation, Engineering simulation, Molecular dynamics, Nanoscale phenomena, Rupture, Simulation

Proceedings Papers

Depletion and Replenishment of Molecularly Thin Lubricant on Diamond-Like Carbon Surface of Magnetic Disks

Yasunaga Mitsuya, Hedong Zhang, Fumihiro Hayakawa, Junichi Ohgi, Kenji Fukuzawa

Proc. ASME. IJTC2006, Part B: Magnetic Storage Tribology; Manufacturing/Metalworking Tribology; Nanotribology; Engineered Surfaces; Biotribology; Emerging Technologies; Special Symposia on Contact Mechanics; Special Symposium on Nanotribology, 855-861, October 23–25, 2006

Paper No: IJTC2006-12086

DOI: https://doi.org/10.1115/IJTC2006-12086

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Topics: Carbon, Diamonds, Disks, Lubricants, Diffusion (Physics), Film thickness, Flow (Dynamics), Glass

Proceedings Papers

Quantification of the Surface Morphology of Lubricant Films With Polar End Groups Using Molecular Dynamics Simulation: Periodic Changes in Morphology Depending on Film Thickness

Susumu Ogata, Hedong Zhang, Kenji Fukuzawa, Yasunaga Mitsuya

Paper No: IJTC2006-12106

DOI: https://doi.org/10.1115/IJTC2006-12106

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Topics: Film thickness, Lubricants, Molecular dynamics simulation, Disks, Intermolecular forces, Polymers, Probes, Springs, Surface roughness

Journal Articles

Quantification of the Surface Morphology of Lubricant Films With Polar End Groups Using Molecular Dynamics Simulation: Periodic Changes in Morphology Depending on Film Thickness

Susumu Ogata, Hedong Zhang, Kenji Fukuzawa, Yasunaga Mitsuya

J. Tribol. April 2008, 130(2): 022301.

DOI: https://doi.org/10.1115/1.2842297

Published Online: March 13, 2008

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Topics: Film thickness, Lubricants, Polymers, Molecular dynamics simulation, Surface roughness

Journal Articles

Stiffness and Damping of Thin PFPE Lubricant Bridging Between Magnetic Disk and Diamond Probe Tip

Yasunaga Mitsuya, Yasuji Ohshima, Hedong Zhang, Kei Aoyama, Toshiyuki Kawai, Kenji Fukuzawa

J. Tribol. October 2007, 129(4): 720–728.

DOI: https://doi.org/10.1115/1.2768070

Published Online: May 16, 2007

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Topics: Bridges (Structures), Damping, Disks, Elongation, Lubricants, Probes, Vibration, Stiffness, Elastic constants, Diamonds

Journal Articles

Spreading Characteristics of Monolayer Lubricant Films on Surfaces With Lube Textures

Hedong Zhang, Yasunaga Mitsuya, Natsuko Fukuoka, Kenji Fukuzawa

J. Tribol. January 2005, 127(1): 164–170.

DOI: https://doi.org/10.1115/1.1843828

Published Online: February 7, 2005

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Topics: Diffusion (Physics), Disks, Lubricants, Surface energy, Texture (Materials), Ultraviolet radiation, Irradiation (Radiation exposure), Film thickness

Journal Articles

Direct Visualization of Molecularly Thin Lubricant Films on Magnetic Disks by Ellipsometric Microscopy With a White Light Source

Kenji Fukuzawa, Akira Nakada, Yasunaga Mitsuya, Hedong Zhang

J. Tribol. October 2004, 126(4): 755–760.

DOI: https://doi.org/10.1115/1.1792694

Published Online: November 9, 2004

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Topics: Disks, Light sources, Lubricants, Microscopes, Noise (Sound), Optical interference, Visualization, Wavelength, Resolution (Optics), Lasers

Journal Articles

Measurement of Adhesion Force and Elongation of Molecularly Thin Lubricant by Using Transient Response of SPM Cantilever

Yasuji Ohshima, Associate Professor, Yasunaga Mitsuya, Professor, Yusuke Iwase

J. Tribol. October 2004, 126(4): 738–744.

DOI: https://doi.org/10.1115/1.1759340

Published Online: November 9, 2004

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Topics: Cantilevers, Elongation, Lubricants, Separation (Technology), Transients (Dynamics), Adhesion, Scanning probe microscopy, Silicon, Vibration

Journal Articles

Head-Disk Spacing Measurement Using Michelson Laser Interferometry as Observed Through Glass Disk

Yasunaga Mitsuya, Professor, Yasuhiro Kawamoto, Hedong Zhang, Research Associate, Hiroyuki Oka

J. Tribol. April 2004, 126(2): 360–366.

DOI: https://doi.org/10.1115/1.1645870

Published Online: April 19, 2004

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Topics: Disks, Glass, Interferometry, Silicon, Phase shift, Lasers, Mirrors, Resolution (Optics), Image processing

Journal Articles

Measurement of Velocity-Dependent Adhesive Force Exerted on Magnetic Disk Using Micro-Probe of SPM

Yasunaga Mitsuya, Professor, Yasuji Ohshima, Associate Professor

J. Tribol. October 2003, 125(4): 842–849.

DOI: https://doi.org/10.1115/1.1573231

Published Online: September 25, 2003

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Topics: Adhesives, Cantilevers, Disks, Scanning probe microscopy, Separation (Technology), Transients (Dynamics), Vibration, Probes, Diffraction patterns, Image processing

Journal Articles

Spreading Characteristics of Molecularly Thin Lubricant on Surfaces With Groove-Shaped Textures: Effects of Molecular Weight and End-Group Functionality

Hedong Zhang, Yasunaga Mitsuya, Professor, Maiko Yamada

J. Tribol. April 2003, 125(2): 350–357.

DOI: https://doi.org/10.1115/1.1509771

Published Online: March 19, 2003

View Article

Topics: Disks, Lubricants, Molecular weight, Simulation, Texture (Materials), Ising model

Journal citation

NARROW

Detection of the Asperity Contact Between Sliding Surfaces by Monitoring the Excitation of Resonant Oscillation Using the Fiber Wobbling Method

A Numerical Simulation Method to Evaluate the Static and Dynamic Characteristics of Flying Head Sliders on Patterned Disk Surfaces

Formation of Lubricant “Sierra” at Boundary Between PFPE Solution Dipped and Un-Dipped Zones Over DLC Coated Magnetic Disks

Spreading Characteristics of Monolayer Lubricant Film on Surfaces With Lube Textures

Direct Visualization of Molecularly Thin Lubricant Films on Magnetic Disks by Ellipsometric Microscopy With a White Light Source

A Simulation Method for Spreading Dynamics of Molecularly Thin Lubricant Films on Magnetic Disks Using Bead-Spring Model

Comparisons of Friction Characteristics of a Lightly Loaded Pin Sliding Over Magnetic Disks Coated With Polar and Non-Polar PFPE Lubricants

Stiffness and Damping of Molecularly Thin PFPE Lubricant Bridging Between Magnetic Disk and Diamond Probe Tip

Flying Characteristics of Head Sliders on Patterned Disk Surfaces

Simulations for Nanoscale Meniscus Formation and Rupture by Using Molecular Dynamics

Depletion and Replenishment of Molecularly Thin Lubricant on Diamond-Like Carbon Surface of Magnetic Disks

Quantification of the Surface Morphology of Lubricant Films With Polar End Groups Using Molecular Dynamics Simulation: Periodic Changes in Morphology Depending on Film Thickness

Quantification of the Surface Morphology of Lubricant Films With Polar End Groups Using Molecular Dynamics Simulation: Periodic Changes in Morphology Depending on Film Thickness

Stiffness and Damping of Thin PFPE Lubricant Bridging Between Magnetic Disk and Diamond Probe Tip

Spreading Characteristics of Monolayer Lubricant Films on Surfaces With Lube Textures

Direct Visualization of Molecularly Thin Lubricant Films on Magnetic Disks by Ellipsometric Microscopy With a White Light Source

Measurement of Adhesion Force and Elongation of Molecularly Thin Lubricant by Using Transient Response of SPM Cantilever

Head-Disk Spacing Measurement Using Michelson Laser Interferometry as Observed Through Glass Disk

Measurement of Velocity-Dependent Adhesive Force Exerted on Magnetic Disk Using Micro-Probe of SPM

Spreading Characteristics of Molecularly Thin Lubricant on Surfaces With Groove-Shaped Textures: Effects of Molecular Weight and End-Group Functionality

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