Company Filing History:
2 out of 4 
1 out of 50 
1 out of 423 
Years Active: 1981-1988
Title: Innovations by Yoshihiko Ogawa
Introduction
Yoshihiko Ogawa is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of engineering, particularly in the areas of construction and vibration isolation. With a total of 4 patents, his work has had a lasting impact on various industries.
Latest Patents
One of Ogawa's latest patents is a method of sealing water leakage in concrete structures. This innovative technique involves a mixture that consists of an organic polyisocyanate compound and/or a prepolymer with terminal isocyanate residues, derived from the reaction of an organic polyisocyanate with a polyhydroxyl compound, along with 2-pyrrolidone. This mixture is injected into water-leaking cracks or openings in concrete structures, such as water tanks, subway constructions, and tunnels. The injected mixture diffuses into the cracks and cures quickly by reacting with water at the leaking sites, resulting in a polyurethane foam that securely seals the water leaking sites. Another significant invention is a vibration isolator composed of a low foam urethane elastomer. This elastomer has urethane bonds and a bulk density of 0.4-0.75 g/cm³, prepared from a starting foamable liquid of urethane elastomer.
Career Highlights
Throughout his career, Yoshihiko Ogawa has worked with prominent companies, including Nisshin Spinning Co., Ltd. and Japanese National Railways. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in engineering and construction.
Collaborations
Ogawa has collaborated with notable individuals in his field, including Tatsuya Hongu and Toshio Suzuki. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Yoshihiko Ogawa's contributions to innovation in sealing methods and vibration isolation demonstrate his expertise and commitment to engineering excellence. His patents reflect a deep understanding of material science and practical applications, making him a significant figure in his field.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.