This inventor holds 2 USPTO granted patents. Top assignees: Hitachi, Ltd., Babcock-Hitachi Kabushiki Kaisha. Active years: 1984.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 42,731 
1 out of 222 Years Active: 1984
Title: Innovations of Yoshimitsu Tobita
Introduction
Yoshimitsu Tobita is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of engineering, particularly in the development of advanced materials and mechanisms. With a total of 2 patents, his work has had a considerable impact on various industries.
Latest Patents
One of his latest patents is a sliding mechanism designed for guiding control rods in nuclear reactors. This mechanism comprises two members in sliding contact, with specific alloy compositions that enhance durability and performance. The first member, potentially a pin, is made from an alloy with less than 0.3% carbon, 7-40% nickel, 15-28% chromium, 2-8% silicon, 3-12% manganese, and the balance being iron. The second member, possibly a roller, consists of an alloy with less than 0.5% carbon, 13-22% chromium, and other elements that ensure a difference in Vickers hardness of below 200 at their contact surfaces.
Another significant patent involves a heat-resistant and corrosion-resistant weld metal alloy. This alloy is composed of various elements, including less than 0.08% carbon, 32 to 42% nickel, and 21 to 25% chromium, among others. The invention provides an austenitic welded structure that enhances the performance of welded components in challenging environments.
Career Highlights
Yoshimitsu Tobita has worked with prominent companies such as Hitachi, Ltd. and Babcock-Hitachi Kabushiki Kaisha. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in technology and engineering.
Collaborations
Throughout his career, Tobita has collaborated with notable colleagues, including Katsumi Iijima and Hisashi Morimoto. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Yoshimitsu Tobita's contributions to the field of engineering through his patents and collaborations highlight his innovative spirit and dedication to advancing technology. His work continues to influence various industries, particularly in the realm of nuclear engineering and materials science.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile