Location History:
- Chigasaki, JP (1999 - 2005)
- Tokyo, JP (2019)
Company Filing History:
Years Active: 1999-2019
Title: Akihiro Kuroyanagi: Innovator in Battery and Semiconductor Materials
Introduction
Akihiro Kuroyanagi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the fields of battery technology and semiconductor materials. With a total of three patents to his name, Kuroyanagi continues to push the boundaries of innovation in his industry.
Latest Patents
Kuroyanagi's latest patents include a process for manufacturing graphite powder for lithium secondary battery negative electrode material. This method allows for the easy production of graphite powder with a small specific surface area, while reducing energy consumption and achieving high graphitization efficiency. The process involves melt-mixing a coke powder and a carbon precursor binder, followed by pressing the mixture to prepare a compact. The compact is then heated in a non-oxidizing atmosphere to effect carbonization and graphitization, ultimately resulting in a graphitized compact that is ground to the desired consistency.
Another notable patent is for a nitrogen-doped n-type SiC-formed material. This material consists of high purity β-type crystals, exhibiting low resistivity and low light transmittance, making it suitable for use as a substrate in semiconductor fabrication. The SiC-formed material is produced using a CVD method, where nitrogen gas is introduced alongside raw material gases to form a SiC film on a substrate. The manufacturing process is designed for high productivity and improved deposition rates.
Career Highlights
Kuroyanagi is currently employed at Tokai Carbon Company, Ltd., where he applies his expertise in materials science to develop innovative solutions. His work has garnered attention for its potential impact on the efficiency and performance of energy storage and semiconductor devices.
Collaborations
Throughout his career, Kuroyanagi has collaborated with notable colleagues, including Kenichi Kanai and Tomiya Yasunaka. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in technology.
Conclusion
Akihiro Kuroyanagi is a distinguished inventor whose work in battery and semiconductor materials continues to shape the future of technology. His innovative patents reflect a commitment to enhancing energy efficiency and performance in critical applications.