Company Filing History:
Years Active: 2000-2005
Title: Inventor Yoshiharu Toshima: A Pioneer in Nickel Powder Innovations
Introduction
Yoshiharu Toshima, an innovative inventor based in Yamaguchi, Japan, has made significant contributions to the field of materials science, particularly in the development of nickel powders. With a portfolio of 10 patents, Toshima's work focuses on enhancing the properties and applications of nickel in electronic components.
Latest Patents
Among his latest inventions, Toshima has developed methods for preparing nickel powder and conductive pastes utilized in electronic parts. One notable patent involves a nickel powder characterized by specific particle size requirements. This nickel powder contains at least 10% of particles larger than 1.2 times the average size and 10% of particles smaller than 0.8 times the average size, as determined by scanning electron microscopy (SEM) observation. The preparation method involves precipitating nickel particles from an aqueous solution with a reducing agent, ensuring no intermediate nickel hydroxide forms. Another patent details a similar nickel powder, restricted to a maximum of 5% of both larger and smaller particles, produced by reacting nickel hydroxide with a hydrazine reducing agent under controlled temperature conditions.
Career Highlights
Yoshiharu Toshima is associated with Mitsui Mining & Smelting Company, Ltd., where his research and development efforts have led to advancements in the formulation of conductive materials. His patents not only provide technical improvements but also contribute to the efficiency and effectiveness of electronic components used in various industries.
Collaborations
Throughout his career, Toshima has collaborated with notable colleagues, including Takayuki Araki and Takao Hayashi. These collaborations have fostered an environment of innovation, leading to breakthroughs in nickel powder technologies.
Conclusion
Yoshiharu Toshima stands as a vital figure in the advancement of nickel powder applications for electronic components. His numerous patents reflect a commitment to innovation and a dedication to improving the quality of materials used in technology. As he continues to work in collaboration with esteemed colleagues at Mitsui Mining & Smelting Company, Ltd., Yoshiharu Toshima undoubtedly paves the way for future advancements in the field.
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