Topics, Members

Topics, Members

We have worked on a super three-dimensional (3-D) fabrication technology platform and creation of high-value-added products. Our research project consists of five research projects as follows:

Project #1 (Development of super 3-Dmicro/nano fabrication system)

We have constructed a 3-D fabrication system using a femtosecond pulsed laser and a spatial light modulator for the development of ultra high-speed fabrication system. To achieve ultra-high speed fabrication, we have developed a contour scanning method with a 3-D hollow model produced by our original software. It is able to reduce total fabrication time of a conventional solid model by more than 60 percent. In addition, a doughnut laser beam have been utilized for ultra-fast fabrication by modulating the phase distribution of the laser beam with the spatial light modulator. The fabrication time is about one-third of that of conventional method using a tightly focused laser beam.

Project #2 (Development of omnidirectional microstereolithography system)

We have developed an omnidirectional microstereolithography system using optical fibers supported by a robotic arm.

Project #3 (Development of functional devices using soft and hard 3-D molding)

For the development of 3-D artificial livers, a microneedle array have been fabricated by microstereolithography. In preliminary experiments, it have been demonstrated cell detachment from the gold surface by electrochemical method. In the next step, the gold-plated microneedle array will be used for making artificial vessels.

Project #4 & #5 (Development of a popular 3-D fabrication system and open innovation)

We have developed a popular 3-D fabrication system using a laser diode (wavelength: 405 nm) for open innovation. The fabrication system was introduced into Kanagawa Institute of Industrial Science and Technology (KISTEC). The complicated 3-D molds will be applied to functional microdevices in medical and biological researches.

メンバー

Name Department, Division, Position Research field Roles

Shoji Maruo
Faculty of Engineering,
Division of Systems Research, Professor
3D micro-nano-fabrication
Development and application of 3D micro-nano-fabrication technology

Takashi Maekawa
Faculty of Engineering,
Division of Systems Research, Professor
CAD/CAM and geometric modeling Reserach and development of software for freeform slicing of 3D-CAD model

Yusuke Maeda
Faculty of Engineering,
Division of Systems Research, Associate Professor
Intelligent robotics, Intelligent mechanics/Mechanical systems Reserach and development of robotic manipulation technology

Junji Fukuda
Faculty of Engineering,
Division of Materials Science and Chemical Engineering, Professor
Bioengineering Research of artificial blood vessel and organ formation using biocompatible hydrogel for regenerative medicine

Hiroki Ota
Faculty of Engineering,
Division of Systems Research, Associate Professor
Wearable/Flexible sensors Development of next-generation sensors/systems using soft materials

Taichi Furukawa
Faculty of Engineering,
Division of Systems Research, Assistant Professor
3D micro-nano-fabrication Development and application of 3D micro-nano-fabrication technology

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help desk for super-3D fabrication
Yokohama National University
Graduate School of Engineering, YNU
Cooperative Research and Development Center

Maruo Lab. (3D fabrication)
Maekawa Lab. (3D CAD)
Maeda Lab. (robotics)
Fukuda Lab. (Bio Microsystem, Regenerative medicine)