This inventor holds 2 USPTO granted patents. Top assignees: Nippon Kokan Kabushiki Kaisha, Toshin Seiko Kabushiki Kaisha. Active years: 1983.
Company Filing History:
2 out of 487 
2 out of 9 Years Active: 1983
Title: The Innovations of Sumifusa Iwamaru
Introduction
Sumifusa Iwamaru is a notable inventor based in Himeji, Japan. He has made significant contributions to the field of steel manufacturing through his innovative patents. With a total of 2 patents, Iwamaru's work focuses on improving the efficiency of steel scrap preheating processes.
Latest Patents
Iwamaru's latest patents include a method for preheating steel scrap by exhaust gas from steelmaking. This method involves directing exhaust gas produced in an electric furnace to a combustion chamber, where carbon monoxide is combusted to create a combustion exhaust gas. This gas is then used to preheat steel scrap to a prescribed temperature. Additionally, he has developed an apparatus for preheating steel scrap, which features a preheating vessel and a hood for introducing high-temperature waste gases from a steel-refining furnace.
Career Highlights
Throughout his career, Iwamaru has worked with prominent companies such as Toshin Seiko and Nippon Kokan. His experience in these organizations has allowed him to refine his skills and contribute to advancements in steel manufacturing technology.
Collaborations
Iwamaru has collaborated with notable coworkers, including Toshimichi Maki and Mitsuya Iguchi. Their combined expertise has likely fostered innovative solutions in their respective fields.
Conclusion
Sumifusa Iwamaru's contributions to the steel industry through his patents demonstrate his commitment to innovation and efficiency. His work continues to influence the manufacturing processes in steel production.