Company Filing History:
2 out of 67 
1 out of 27 Years Active: 2012-2024
Title: **Toyohiko Kakihara: Innovator in Stainless Steel Technology**
Introduction
Toyohiko Kakihara is a notable inventor based in Tokyo, Japan, recognized for his contributions to stainless steel technology. With a total of three patents to his name, Kakihara has made significant advancements in the fields of welded structures and materials science. His innovations have set new standards in the industry, demonstrating his expertise and vision as an inventor.
Latest Patents
Kakihara's latest patents reflect his commitment to enhancing the properties and applications of stainless steel. One of his notable inventions is a welded structure and storage tank composed of duplex stainless steel. This patented design involves a base material and a welded portion characterized by a specific chemical composition that optimizes the ferrite phase volume in the weld metal. The controlled hardness ratio between the weld metal and the base material enhances durability and performance.
Another significant patent details the production of ferritic stainless steel casting and sheets, which exhibit excellent deep drawability, punch stretchability, and resistance to ridging. This invention highlights the meticulous control of chemical composition to improve workability and reduce issues related to coarse columnar crystals during the casting process.
Career Highlights
Throughout his career, Toyohiko Kakihara has worked with leading companies in the stainless steel industry, including Nippon Steel & Sumikin Stainless Steel Corporation and Nippon Steel Stainless Steel Corporation. His experience at these renowned institutions has significantly shaped his innovative approach to materials and engineering.
Collaborations
Kakihara has collaborated with esteemed professionals in the field, including Akihiko Takahashi and Junichi Hamada. These partnerships have allowed for a shared exchange of knowledge and expertise, further advancing the development and application of stainless steel technologies.
Conclusion
In conclusion, Toyohiko Kakihara stands out as a pioneering inventor in stainless steel technology. His patents not only demonstrate his technical prowess but also serve as a testament to the potential of innovation in industrial applications. Through his work, Kakihara continues to influence the future of materials science, showcasing the impact of dedicated inventors in shaping modern engineering.