This inventor holds 3 USPTO granted patents. Top assignees: National Aerospace Laboratories of Science & Technology Agency, National Aerospace Laboratory of Science Technology Agency, Sumitomo Electric Industries, Limited. Active years: 1985-1987.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 3 
1 out of 16 
1 out of 10,641 
Years Active: 1985-1987
Title: Innovations of Hiroshi Sakamoto
Introduction
Hiroshi Sakamoto is a notable inventor based in Shibata, Japan. He has made significant contributions to the field of rocket technology, particularly in the design and production of rocket combustors. With a total of 3 patents to his name, Sakamoto's work has advanced the efficiency and effectiveness of rocket propulsion systems.
Latest Patents
Sakamoto's latest patents include a revolutionary design for a rocket combustion chamber cooling wall of composite cooling type. This innovative cooling wall features a throat portion made of a porous material that utilizes a perspiring cooling action, addressing the high heat load typically experienced in rocket engines. The remaining sections are designed for conventional forced convection cooling, resulting in a composite cooling system that provides a high cooling effect while minimizing pressure loss in the cooling passages. This design contributes to a lightweight engine with a long operational life. Another significant patent is a method of producing rocket combustors, which involves using a powder metallurgical method to form an outer cylinder with a cooling wall that has multiple grooves. A low-melting alloy is employed as a filler for these grooves, enhancing the manufacturing process and performance of rocket combustors.
Career Highlights
Throughout his career, Sakamoto has worked with the National Aerospace Laboratories of the Science & Technology Agency, where he has contributed to various projects aimed at improving aerospace technology. His expertise in rocket propulsion systems has made him a valuable asset in the field.
Collaborations
Sakamoto has collaborated with notable colleagues such as Masayuki Niino and Nobuyuki Yatsuyanagi, further enhancing the innovative efforts in rocket technology.
Conclusion
Hiroshi Sakamoto's contributions to rocket technology through his patents and career achievements highlight his role as a significant inventor in the aerospace industry. His innovative designs and methods continue to influence the development of efficient rocket propulsion systems.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile