Fumihiko Gejima

Title: Fumihiko Gejima: Innovator in Aluminum Alloys

Introduction

Fumihiko Gejima is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of materials science, particularly in the development of aluminum alloys. With a total of 6 patents to his name, Gejima's work has implications for various industries, including automotive and manufacturing.

Latest Patents

Gejima's latest patents include innovations such as an aluminum alloy and high-strength bolt made of aluminum alloy. This invention provides a material that exhibits sufficient heat resistance, tensile strength, and stress corrosion cracking resistance, making it suitable for use as automobile parts. The aluminum alloy composition includes 1.0 to 1.7% of Si, 0.05 to 0.5% of Fe, 0.8 to 1.5% of Cu, 0.6 to 1.2% of Mn, 0.9 to 1.5% of Mg, 0.05 to 0.5% of Zn, 0.05 to 0.3% of Zr, 0.01 to 0.2% of V, and optional Ti and Ni in specified amounts. Another significant patent is for a stress-buffering material made from a Ca-containing aluminum alloy, which can be produced at low cost and has a low Young's modulus, expanding its potential applications across various fields.

Career Highlights

Throughout his career, Gejima has worked with prominent organizations, including Nissan Motor Company Limited and Tohoku University. His experience in these institutions has allowed him to refine his expertise in materials science and engineering.

Collaborations

Gejima has collaborated with notable colleagues such as Hiroshi Sakurai and Hiroki Sakamoto. These partnerships have contributed to the advancement of his research and innovations in aluminum alloys.

Conclusion

Fumihiko Gejima's contributions to the field of aluminum alloys and materials science are noteworthy. His innovative patents and collaborations highlight his role as a leading inventor in this domain. His work continues to influence various industries, particularly in automotive applications.