Location History:
- Itama, JP (1998)
- Hyogo, JP (1994 - 2001)
- Itami, JP (1987 - 2016)
- Tokyo, JP (2018)
- Toyama, JP (2018 - 2019)
Company Filing History:
42 out of 10,264 
11 out of 80 
7 out of 553 
Years Active: 1987-2019
Areas of Expertise:
Title: Akihiko Ikegaya: A Pioneer in Heat-Resistant Alloys and Friction Stir Welding
Introduction:
Akihiko Ikegaya, a renowned inventor and engineer hailing from Itami, Japan, has left an indelible mark in the field of materials science and welding technologies. With an impressive portfolio of 49 patents, Ikegaya has continuously pushed the boundaries of innovation, earning him recognition and accolades worldwide. In this article, we will delve into his latest patents, career highlights, notable collaborations, and his significant contributions to the field.
Latest Patents:
Ikegaya's recent patents highlight his expertise in developing heat-resistant alloys and improving the performance of welding tools. Of note are two groundbreaking inventions: the heat-resistant tungsten alloy and the heat-resistant molybdenum alloy.
The heat-resistant tungsten alloy features a unique composition consisting of a first phase predominantly comprised of tungsten (W), a second phase containing carbonitrides of titanium (Ti), zirconium (Zr), or hafnium (Hf), and a third phase comprising carbide of group 5A elements. This alloy demonstrates exceptional properties, including a Vickers hardness of 550 Hv or more at room temperature, fracture resistance under a 1 mm displacement in a three-point bending test at 1200°C, and a 0.2% proof stress of 900 MPa or more. This invention opens up new possibilities for applications in high-temperature environments, such as aerospace and energy sectors.
The heat-resistant molybdenum alloy developed by Ikegaya exhibits an improved ability to withstand extreme temperatures. Comprising a primary phase primarily composed of molybdenum (Mo) and a secondary phase consisting of a Mo-Si-B-based intermetallic compound particle phase, this alloy offers excellent thermal stability. With a controlled Si content between 0.05% and 0.80% and a B content between 0.04% and 0.60%, this alloy demonstrates promising potential in high-temperature applications, including furnace components and turbine parts.
Career Highlights:
Throughout his illustrious career, Ikegaya has made significant contributions in both industrial and academic settings. He has held notable positions in esteemed organizations such as Sumitomo Electric Industries, Limited and A.L.M.T. Corporation. While contributing to these companies, Ikegaya spearheaded numerous research projects that have resulted in groundbreaking developments.
Collaborations:
Collaboration plays a vital role in achieving significant milestones, and Ikegaya has had the opportunity to work with exceptional colleagues in his journey. Notably, he has collaborated with Naoji Fujimori and Hideki Moriguchi, fellow researchers who have made valuable contributions to various projects. These collaborations have enriched Ikegaya's innovative endeavors and propelled advancements in materials science and welding technologies.
Conclusion:
Akihiko Ikegaya's prolific career and innovative patents firmly establish him as a trailblazer in the field of heat-resistant alloys and friction stir welding. His groundbreaking inventions, such as the heat-resistant tungsten and molybdenum alloys, have the potential to revolutionize industries operating in extreme temperature environments. Ikegaya's contributions, combined with his fruitful collaborations and career achievements, have undoubtedly made a lasting impact on materials science and welding technologies.