Hajime Hirasawa, a prominent inventor located in Yokohama, Japan, has made significant contributions to the field of power plant technology through his innovative patents. With an impressive portfolio of eight patents, Hirasawa has focused on developing solutions that enhance the efficiency and longevity of high-temperature water systems in power plants.

Latest Patents

Among Hirasawa's latest patents, two stand out for their ingenuity:

1. **Method for Suppressing Corrosion in Plant** - This invention addresses the challenges faced by steam generators and other components in a system where non-deaerated water circulates. By depositing a protective substance on parts of the steam generator, heater, and connected pipes, the method effectively suppresses corrosion.

2. **Corrosion-Resistant Structure for High-Temperature Water System and Corrosion-Preventing Method Thereof** - This patent presents a novel corrosion-resistant structure that includes a structural material and a corrosion-resistant film formed from substances such as Lanthanum (La) and Yttrium (Y). This film is applied to the surface that contacts cooling water, allowing for the operation of a high-temperature water system without the need for chemical water chemistry control.

Career Highlights

Hajime Hirasawa has established himself within Kabushiki Kaisha Toshiba, a company well-known for its cutting-edge technologies. Through his work, Hirasawa has not only advanced plant operations but also contributed to the company's reputation as a leader in the energy sector.

Collaborations

Throughout his career, Hirasawa has collaborated with esteemed colleagues such as Masato Okamura and Osamu Shibasaki. These partnerships have further enriched his innovative efforts, leading to the development of patents that address real-world challenges in energy efficiency and plant maintenance.

Conclusion

In summary, Hajime Hirasawa stands as a testament to the power of innovation within the energy sector. His commitment to developing corrosion-resistant technologies not only enhances the operational efficiency of power plants but also paves the way for future advancements in the field. With his impressive patent portfolio, Hirasawa continues to inspire and lead in the quest for sustainable energy solutions.

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