This inventor holds 2 USPTO granted patents. Top assignee: Kyocera Corporation. Active years: 1993-1996.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Sendai, JP (1993)
- Kokubu, JP (1996)
Company Filing History:
Years Active: 1993-1996
Title: Hiroki Tokunaga: Innovator in Ceramic Sintered Products
Introduction
Hiroki Tokunaga is a notable inventor based in Sendai, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced ceramic sintered products. With a total of 2 patents to his name, Tokunaga's work has implications for various high-tech applications.
Latest Patents
Tokunaga's latest patents include an Al.sub.2 O.sub.3 -TiC sintered product and a ceramic sintered body. The Al.sub.2 O.sub.3 -TiC sintered product comprises Al.sub.2 O.sub.3 as a main component and contains TiC in an amount of 20 to 40% by weight. This innovative product features an average particle diameter of Al.sub.2 O.sub.3 particles that is larger by 5 to 50% than that of TiC particles. The sintered product is designed for use as a substrate for magnetic heads, exhibiting excellent surface quality and precision after ion irradiation machining.
The second patent, a ceramic sintered body, consists of 60 to 80% by weight of alumina and 20 to 40% by weight of titanium carbide or a combination of titanium carbide and titanium oxide. This ceramic body also includes zirconium oxide and a composite oxide of magnesium oxide and aluminum. It is recognized for its chipping resistance, machinability, and surface smoothness, making it suitable for thin film head substrates.
Career Highlights
Hiroki Tokunaga is currently employed at Kyocera Corporation, where he continues to innovate in the field of ceramics. His work has been instrumental in advancing the technology used in magnetic heads and other high-precision applications.
Collaborations
Throughout his career, Tokunaga has collaborated with notable colleagues, including Nobuoki Takagi and Shinichiro Masuyama. These collaborations have contributed to the successful development of his patented technologies.
Conclusion
Hiroki Tokunaga's contributions to the field of ceramic sintered products highlight his role as a leading inventor in materials science. His innovative patents demonstrate the potential for advanced materials in high-tech applications, ensuring his legacy in the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile