Company Filing History:
2 out of 10,092 
2 out of 832,843 Years Active: 1999-2003
Title: **Innovations of Mitsuo Takashima: Pioneering Advances in Engine Components**
Introduction
Mitsuo Takashima, an accomplished inventor based in Wako, Japan, has made significant contributions to the field of engineering with a focus on internal combustion engine components. With a total of four patents to his name, Takashima's inventions are characterized by their innovative approaches to enhancing performance and durability in automotive applications.
Latest Patents
One of his latest patents is a **production process for connecting rods used in internal combustion engines**. This inventive method improves fatigue strength by utilizing a carburized and quenched material for the connecting rod. In this process, the carburized layer on the bearing portion is ground to maximize compressive residual stress. Additionally, a shot-peening treatment is applied to the ground surface, leading to the formation of concavities that act as efficient oil reservoirs, thus enhancing lubrication and reducing the occurrences of fretting corrosion, galling, and seizures.
Another notable invention is a **method for manufacturing high-strength bolts** that exhibit excellent resistance to delayed fracture and stress relaxation. This high-strength bolt possesses a tensile strength exceeding 1200 N/mm. The unique steel material composition includes specific percentages of carbon, manganese, phosphorous, and sulfur, ensuring that the final product is highly durable. The innovative manufacturing process involves severe drawing of the steel material, followed by forming and a specialized blueing treatment, resulting in a bolt of superior quality.
Career Highlights
Takashima's career includes significant stints at prominent companies such as Honda Giken Kogyo Kabushiki Kaisha, where he contributed his expertise in engineering and innovation. His work at Honda has undoubtedly played a pivotal role in the development of reliable automotive components that meet the demands of modern engineering standards.
Collaborations
Throughout his career, Takashima has collaborated with renowned professionals in the field, including Seiichi Koike and Shigekazu Tanaka. These partnerships have allowed for the exchange of ideas and have fostered an environment conducive to innovation, leading to the successful realization of several patented technologies.
Conclusion
Mitsuo Takashima stands out as a distinguished inventor whose work in developing advanced materials and manufacturing processes for engine components is indicative of his dedication to enhancing automotive engineering. Through his numerous patents and collaborative efforts, he continues to inspire future innovations in the industry.