Company Filing History:
2 out of 106 
1 out of 149 Years Active: 1998-2001
Title: The Innovations of Yukio Tokuyama
Introduction
Yukio Tokuyama is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced metal powders. With a total of 2 patents, his work has implications for various industrial applications.
Latest Patents
One of Tokuyama's latest patents is for water-atomized spherical metal powders and the method for producing them. This innovation involves creating a water-atomized metal powder with a spherical particle shape, an average particle size of 25 µm or less, and a tap density ratio of 50-60%. The process includes forming non-spherical metal particles from molten metal through water-atomization and then transforming them into spherical particles using a high-speed gas current. This method results in a spherical metal powder that is particularly suitable for injection molding, allowing for a reduced blending proportion of organic binder and yielding high-strength debound bodies.
Another significant patent is for a source powder for wear-resistant sintered material. This powder consists of specific weight percentages of various elements, including chromium, molybdenum, tungsten, vanadium, cobalt, carbon, silicon, and manganese, with iron and unavoidable impurities as the balance. The composition allows for the creation of a green compact with high density, which can be sintered to produce a material with exceptional hardness and strength.
Career Highlights
Throughout his career, Yukio Tokuyama has worked with prominent companies such as Mitsubishi Steel Manufacturing Co., Ltd. and Hitachi Powdered Metals Co., Ltd. His experience in these organizations has contributed to his expertise in metal powder technology and materials engineering.
Collaborations
Tokuyama has collaborated with notable colleagues, including Yuji Soda and Hiroshi Usui. These partnerships have likely enhanced his research and development efforts in the field of advanced materials.
Conclusion
Yukio Tokuyama's contributions to the field of materials science, particularly through his innovative patents, have made a significant impact on the industry. His work continues to influence the development of advanced metal powders and their applications in various manufacturing processes.