Yasunobu Matsushima

Title: Innovations by Yasunobu Matsushima: A Journey Through Patents and Inventions

Introduction

Yasunobu Matsushima, a prominent inventor based in Kawasaki, Japan, has made significant contributions to the fields of humidity sensing and chemical conversion coatings. With a remarkable portfolio of eight patents, his innovative spirit and technical acumen have paved the way for advancements in various industrial applications.

Latest Patents

Matsushima's latest patent revolves around a state-of-the-art humidity sensor. This invention employs a chemical conversion coating that is notable for its impedance decrease upon the adsorption of moisture, effectively transforming it into a humidity sensing element. Key features of this sensor include an exceptionally short electrode distance, enhanced sensitivity, rapid response time, long-term stability, high reliability, and economical production costs. The unique aspect of this sensor lies in the chemical conversion coating applied to the metal surface, which can be achieved with or without electrolysis. Various coatings such as phosphate, oxalate, titanium fluoro-complex, and non-chromium types are utilized. Additionally, a humidity sensing film is layered on top of the chemical conversion coating to further optimize performance.

Another noteworthy patent by Matsushima is related to a conversion coating solution designed for treating metal surfaces. This specific coating, primarily composed of tin phosphate, can be deposited on steel or tin-plated steel through contact with a specialized solution that includes phosphate ions, tin ions, an oxidizing agent like chlorate, and a chelating agent to stabilize the tin ions. This process yields a coating that offers superior corrosion resistance in hot water conditions, particularly beneficial for drawn and ironed thinly tin-plated cans.

Career Highlights

Throughout his career, Yasunobu Matsushima has collaborated with reputable companies, enhancing his expertise and experience. Notable organizations he has worked with include Nihon Parkerizing Co., Ltd. and Oxy Metal Industries Corporation, where he played a vital role in advancing innovative technologies and processes.

Collaborations

Matsushima's journey in the realm of innovation has been enriched by his collaborations with talented professionals, including Shigeo Tanaka and Hideo Oka. These partnerships have fostered an environment of creativity and knowledge exchange, further amplifying the impact of their collective inventions.

Conclusion

Yasunobu Matsushima exemplifies the essence of innovation through his dedicated work and numerous patents. His contributions to humidity sensing technology and chemical conversion coatings not only demonstrate his ingenuity but also reflect the importance of continuous advancement in industrial applications. As he continues to push the boundaries of invention, Matsushima's legacy is one that inspires future generations of inventors.