The following four projects will be carried out under the FY2024 Joint Research Promotion Project.
Development of spherical shape fine particles showing negative thermal expansion(newly adopted subject)
Chief Researcher
TAKENAKA Koshi, Professor, Graduate School of Engineering Nagoya University,
Collaborative Research Institute
Nagoya University, Misario Co., Ltd.
Research period
FY2024-2025
Research and Development Summary
Zinc magnesium pyrophosphate Zn2–xMgxP2O7, which was developed at Nagoya University, exhibits negative thermal expansion, that is, it contracts on heating. By providing fine particle of this phosphate as a thermal expansion compensating filler, we meet the strong demands of industry to eliminate heat-related problems in various systems and devices. We try to realize a spherical shape of the particle in order to solve the problem of reduced fluidity when composited with resin, which was revealed in feasibility studies conducted by companies using test powder provided by the collaborative company Misario Co., Ltd. This joint project aims to resolve the technicalissues that prevent the large-scale social implementation of zinc magnesium pyrophosphate and make it available as an industrial thermal expansion compensator. We can greatly contribute to improving performance and reliability, extending lifetime, and saving energy cost in a variety of cutting-edge fields such as electronic devices, precision processes such as semiconductor manufacturing, aerospace, transportation equipment, information communications, and optics.
Development of high-power single mode nitride-based quantum-shell lasers(newly adopted subject)
Chief Researcher
KAMIYAMA Satoshi, Professor, Faculty of Science and Technology, Department of Materials Science and Engineering, Meijo University
Collaborative Research Institute
Meijo University, E＆E EVOLUTION Co., Ltd.
Research period
FY 2024-2025
Research and Development Summary
The wireless power transmission technologies get much attention in recent years, because they could be applied to electronic vehicles, drones, and underwater power transmission systems. Although the current power supply systems such as electromagnetic induction methods have achieved transmission efficiency of 70-90%, their possible use is limited due to their short distance.
Therefore, in this project, we will develop a quantum-shell-based laser with significantly higher efficiency and higher directivity than conventional lasers, and demonstrate a long-distance optical power transmission system including it as a light source. The core of this project is a quantum-shell laser that is being developed at Meijo University, and in which a quantum-shell active region is formed on the outer shell of a GaN nanowires. Its features include an increase in the light emitting area due to its three-dimensional structure and the use of crystal planes that are less affected by the electric field caused by a strain. They may contribute significantly improvement of the optical confinement factor, and the luminous efficiency of the lasers. Current leakage elimination and electrical resistance reduction due to such complex three-dimensional structure are urgent issues.
Development of mirror-surface / texture machining technology of die/mold steel to realize decorative/functional large-sized parts of next-generation automobiles
Chief Researcher
HAYASAKA Takehiro, Associate Professor, Nagoya University Graduate School of Engineering
Collaborative Research Institute
Nagoya University, TSK CO.,LTD. , Nagoya Institute of Technology
Research period
FY2023-2024
Research and Development Summary
Along with the prevalence of the electric vehicles and autonomous driving, the needs for next-generation automobile parts such as large-sized panels with new decoration/function are increasing. To realize these parts, machining of high-precision decorative textures and/or large-area mirror surface against high-hardness die/mold steel is necessary. Against small-sized dies-and-molds such as those for lenses, low-cost high-precision mirror-surface / texture machining has been realized by technologies such as ultrasonic elliptical vibration cutting and PLG (Pulse laser grinding) developed by the applicants. However, conducting finishing after roughing / semi-roughing using small tools has problems such as insufficient tool life, long machining time, high cost/energy; die/mold machining of large-sized parts cannot be realized. In this research, tool-workpiece contact detection technology, tool-workpiece position/shape identification technology, and sharpening technology of low-cost diamond-coated tool with a long cutting edge proposed by the applicants are integrated, and one-shot-finishing polish-less mirror-surface / texture machining of large-sized and high-hardness die/mold steel is realized.
Development of a real-working large-scale hexapod robot capable of moving unrestricted by its environment(ongoing project)
Chief Researcher
INAGAKI Shinkichi, Professor, Faculty of Science and Tachnology, Nanzan University
Collaborative Research Institute
Nanzan University, Shinmei Industrial Co., Ltd., Nagoya University
Research period
FY2023-2024
Research and Development Summary
This research aims to develop a large-scale hexapod robot that can move unrestricted by its environment. This would offer a promising solution to the challenges faced by agriculture, forestry, construction, and disaster response management. We will develop a new walk control that integrates environmental recognition, motion planning, local adaptation, and an embedded system dedicated to the hexapod robot using the latest processor technology and robot OS.