This inventor holds 2 USPTO granted patents. Top assignees: Sumitomo Electric Hardmetal Corp., Sumitomo Electric Industries, Limited. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:

Years Active: 2026
Title: Yu Kawamura: Innovator in Cubic Boron Nitride Technology
Introduction
Yu Kawamura is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of materials science, particularly in the development of cubic boron nitride sintered materials. His innovative work has led to advancements in cutting tools and industrial applications.
Latest Patents
Kawamura holds a patent for a cubic boron nitride sintered material. This material comprises 40 to 80 volume % of cubic boron nitride grains and 20 to 60 volume % of a binder phase. The average grain size of the cubic boron nitride grains is between 0.1 to 3 μm. The binder phase includes various compounds, ensuring the material's durability and effectiveness. Notably, the variation coefficient of the area ratio of the cubic boron nitride grains in the cross-section of the material is 0.25 or less. This innovation is crucial for enhancing the performance of cutting tools.
Career Highlights
Throughout his career, Yu Kawamura has worked with prominent companies such as Sumitomo Electric Hardmetal Corporation and Sumitomo Electric Industries, Limited. His experience in these organizations has allowed him to refine his expertise in materials engineering and innovation.
Collaborations
Kawamura has collaborated with talented individuals in his field, including Ryosuke Sakon and Yuya Kishida. These partnerships have contributed to the advancement of technology in cubic boron nitride applications.
Conclusion
Yu Kawamura's contributions to the field of cubic boron nitride technology exemplify his innovative spirit and dedication to advancing materials science. His patent and career achievements highlight the importance of collaboration and expertise in driving technological progress.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile