Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Yoshinao Iwamoto is active.

Publication


Featured researches published by Yoshinao Iwamoto.


Key Engineering Materials | 2012

Detecting Method of Bulk Defects in DLC Films Using Light Scattering

Yuichi Sakurada; Mai Takashima; Toshiyuki Yasuhara; Yoshinao Iwamoto; Makoto Matsuo; Naoto Ohtake

Diamond-like carbon (DLC) film has various micro-size defects like pinhole, void and particle. When DLC film is exposed to white light, light is scattered in all direction at defects in DLC film. In this paper, defects in DLC film are detected by observing scattering light from defects under dark-field microscope. DLC film has wavelength dependence of transmittance. Therefore, using its wavelength dependence allows to separate surface and inside defects of DLC film. This paper describes development of bulk defects detecting system using optical filtering and scattering light detecting. Bulk defects of DLC films were successfully separated into surface defects and inside defects. This detecting method of defect is nondestructive and easy, and applicable to DLC films as well as other coating films.


Archive | 2009

DIAMOND-LIKE CARBON FILM FORMING APPARATUS AND METHOD OF FORMING DIAMOND-LIKE CARBON FILM

Naoto Ohtake; Makoto Matsuo; Yoshinao Iwamoto


Journal of Solid Mechanics and Materials Engineering | 2011

Fabrication of Textured DLC Films Using Three-Dimensional Masking System

Mai Takashima; Kei Kanzawa; Shin Matsuo; Makoto Matsuo; Yoshinao Iwamoto; Naoto Ohtake


Journal of Solid Mechanics and Materials Engineering | 2009

Development of Antiwear Shim Inserts Utilizing Segment-Structured DLC Coatings

Mai Takashima; Tsuyoshi Kuroda; Masanori Saito; Naoto Ohtake; Makoto Matsuo; Yoshinao Iwamoto


Surface & Coatings Technology | 2015

Mechanical characterization of segment-structured hydrogen-free a-C films fabricated by filtered cathodic vacuum arc method

Shota Kondo; Shahira Liza; Naoto Ohtake; Hiroki Akasaka; Makoto Matsuo; Yoshinao Iwamoto


Archive | 2010

PROTECTIVE FILM AND METHOD FOR PRODUCING SAME

Naoto Ohtake; Makoto Matsuo; Yoshinao Iwamoto


The Japan Society of Applied Physics | 2016

Improvement in biocompatibility of titanium and its alloys using plasma process

Junko Hieda; Shahira Liza; Hiroki Akasaka; Naoto Ohtake; Yusuke Tsutsumi; Akiko Nagai; Takao Hanawa; Makoto Matsuo; Yoshinao Iwamoto


The Japan Society of Applied Physics | 2016

a -BCN films synthesized from tri-methylborazine

Nasa Kawagoshi; Tetsuya Yamamoto; Masayuki Nakano; Yoshinao Iwamoto; Makoto Matsuo; Junko Hieda; Naoto Ohtake; Hiroki Akasaka


The Proceedings of Mechanical Engineering Congress, Japan | 2015

G0400303 Blood compatibility of a-BC:H films prepared by pulsed plasma CVD

Shahira Liza Kamis; Junko Hieda; Hiroki Akasaka; Naoto Ohtake; Yusuke Tsutsumi; Akiko Nagai; Takao Hanawa; Makoto Matsuo; Yoshinao Iwamoto


Mechanical Engineering Journal | 2015

Fabrication of micro segment structured DLC film

Yumi Yoshida; Yoshinao Iwamoto; Makoto Matsuo; Hiroki Akasaka; Naoto Ohtake

Collaboration


Dive into the Yoshinao Iwamoto's collaboration.

Top Co-Authors

Avatar

Makoto Matsuo

Tokyo Institute of Technology

View shared research outputs
Top Co-Authors

Avatar

Naoto Ohtake

Tokyo Institute of Technology

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Hiroki Akasaka

Tokyo Institute of Technology

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Kei Kanzawa

Tokyo Institute of Technology

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Takao Hanawa

University of Tokushima

View shared research outputs
Top Co-Authors

Avatar

Toshiyuki Yasuhara

Tokyo Institute of Technology

View shared research outputs
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge