Location History:
- Sapporo, JP (2012)
- Tokyo, JP (2013)
- Hokkaido, JP (2023)
Company Filing History:
3 out of 1,285 
2 out of 315 
1 out of 331 
Years Active: 2012-2023
Title: Tetsu Yonezawa: Innovator in Low-Temperature Sinterable Copper Particles
Introduction
Tetsu Yonezawa is a notable inventor based in Sapporo, Japan. He has made significant contributions to the field of materials science, particularly in the development of low-temperature sinterable copper particles. With a total of 4 patents to his name, Yonezawa's work has the potential to impact various industries.
Latest Patents
One of Yonezawa's latest patents focuses on low-temperature sinterable copper particles and the method for producing a sintered body using these particles. This innovation aims to provide novel copper particles that can be sintered at low temperatures, around 100°C or less. The particles are coated with a carboxylic acid, and their surfaces are oxidized to achieve a cuprous oxide fraction of 4% by mass or less. Additionally, the average coating thickness of cuprous oxide is maintained at 10 nm or less. The low-temperature sinterable copper particles are designed for low-temperature firing in an atmosphere of 0.01 Pa or less. Another significant patent involves a hydrogen storage material that comprises metal fine particles with hydrogen storage capacity, bonded with an organic compound that has specific groups for binding.
Career Highlights
Throughout his career, Tetsu Yonezawa has worked with prestigious institutions, including the University of Tokyo and Dowa Electronics Materials Co., Ltd. His research and innovations have contributed to advancements in materials that are essential for various applications.
Collaborations
Yonezawa has collaborated with notable colleagues such as Kimitaka Sato and Hiroshi Nishihara. These collaborations have further enriched his research and development efforts in the field of materials science.
Conclusion
Tetsu Yonezawa's innovative work in low-temperature sinterable copper particles and hydrogen storage materials showcases his significant contributions to materials science. His patents reflect a commitment to advancing technology and improving industrial processes.