Company Filing History:
3 out of 13,408 
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Years Active: 1981-1983
Title: The Innovations of Koue Ohkawa
Introduction
Koue Ohkawa, an inventive mind based in Yokohama, Japan, has significantly contributed to the field of resin compositions and foundry processes through his innovative inventions. With a portfolio of five patents, Ohkawa’s work is notable for its technical depth and practical applications in various industries.
Latest Patents
Ohkawa's most recent patents showcase his expertise in resin technologies. One of his key inventions is a resin composition for bonding foundry sand. This composition features a crystalline unsaturated polyester that is solid and substantially tack-free at room temperature, with an acid value ranging from 15 to 100. This unsaturated polyester is synthesized by polymerizing a specific dicarboxylic acid component and a glycol component.
Another significant patent introduced by Ohkawa details a method for preparing resin-coated foundry sand using unsaturated polyester. In this process, a solution of an organic peroxide is combined with heated foundry sand and liquid unsaturated polyester to create a coating that is untacky and high in fluidity at room temperature. This innovation facilitates the production of sand molds or cores with high bulk density, thereby improving the efficiency of sand mold casting processes.
Career Highlights
Koue Ohkawa has held positions at reputable companies, including Nissan Motor Company Limited and Mitsui Toatsu Chemicals, Incorporated. His time at these organizations has enabled him to apply his knowledge and skills to a variety of innovative projects, further establishing his reputation as a leading inventor in the resin and foundry industries.
Collaborations
Throughout his career, Ohkawa has collaborated with talented professionals such as Shin Fujii and Takashi Seino. These collaborations have likely played a crucial role in the development and refinement of his groundbreaking inventions, fostering a synergy that has resulted in successful innovations.
Conclusion
Koue Ohkawa stands out as a remarkable inventor whose contributions have had a significant impact on the fields of resin technology and foundry manufacturing. With a focus on creating efficient and effective solutions, his patented innovations continue to pave the way for advancements in these industries. As he continues to push the boundaries of what is possible, Koue Ohkawa remains a prominent figure in the world of inventions.