Hiroshi Usui

Title: Hiroshi Usui: Innovator in Metal Powder Technology

Introduction

Hiroshi Usui is a notable inventor based in Kashihara, Japan. He has made significant contributions to the field of metal powder technology, particularly through his innovative patent related to water-atomized spherical metal powders.

Latest Patents

Hiroshi Usui holds a patent for "Water-atomized spherical metal powders and method for producing the same." This invention involves a water-atomized metal powder characterized by 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, produced from molten metal by water-atomization, into spherical particles using a high-speed gas current. This method facilitates high-speed collisions between the particles and a collision body, resulting in a spherical metal powder that is particularly suitable for injection molding. By utilizing this powder, the blending proportion of organic binder in injection molding can be reduced, leading to the production of high-strength debound bodies.

Career Highlights

Hiroshi Usui is associated with Mitsubishi Steel Mfg. Co., Ltd., where he has been instrumental in advancing metal powder technologies. His work has not only contributed to the company's innovation portfolio but has also enhanced the efficiency of manufacturing processes in the industry.

Collaborations

Hiroshi has collaborated with notable colleagues, including Yukio Tokuyama and Yuji Soda, who have contributed to his research and development efforts in the field of metal powders.

Conclusion

Hiroshi Usui's innovative work in the development of water-atomized spherical metal powders showcases his expertise and commitment to advancing technology in the manufacturing sector. His contributions are significant in enhancing the efficiency and quality of metal powder applications.