Kosaku Hashimoto

Title: **Kosaku Hashimoto: Innovator of Impact-Absorbing Technologies**

Introduction

Kosaku Hashimoto is a prominent inventor based in Nagoya, Japan. With a total of six patents to his name, Hashimoto has significantly contributed to the field of composite materials and impact-absorbing technologies. His innovative approaches have been instrumental in enhancing the performance of various industrial applications.

Latest Patents

Among his latest patents is a **Composite Structure** characterized by an internally inserted component made from a resin material with a tensile elongation of 10% or more. This component is positioned within a metal member that has a hollow closed cross-section. This design allows both the resin component and the metal member to absorb external loads effectively. The unique configuration allows the resin component to occupy more than 50% of the projection area relative to the metal member's cross-section. By incorporating toughness into the internally inserted component, Hashimoto's invention ensures that during collision events, both materials deform appropriately. This synergy results in an ideal rectangular waveform for load-displacement curves, significantly enhancing impact energy absorption performance.

Another noteworthy patent is the **Impact-Absorbing Member**. This invention consists of a formed body made of a fiber-reinforced resin composition, which includes a polyamide resin, a reactive functional group-containing rubbery polymer, and a fibrous inorganic filling material. This formed body is placed atop another formed body created from a non-reinforced resin composition containing a similar polyamide resin and rubbery polymer. The strategic arrangement ensures that the formed body disposed at the impact-receiving side effectively absorbs and mitigates impact forces.

Career Highlights

Kosaku Hashimoto works at Toray Industries, Inc., where he has made significant advancements in material science and engineering. His expertise in composite materials has not only earned him patents but also recognition within the industry for his contributions to improving safety and performance in various applications.

Collaborations

Hashimoto has collaborated with several notable colleagues, including Yukitane Kimoto and Toru Yamanaka. These collaborations have fostered innovation and have played a crucial role in advancing their mutual interests in composite materials and impact absorption technologies.

Conclusion

Kosaku Hashimoto stands out as a leading innovator in the field of materials science, particularly in the development of composite structures and impact-absorbing members. His work at Toray Industries, Inc., along with his collaborative efforts, has greatly contributed to advancements that enhance safety and efficiency in various industries. With six patents to his name, Hashimoto's legacy continues to shape the future of material technology.