This inventor holds 4 USPTO granted patents. Top assignees: Tokyo Shibaura Denki Kabushiki Kaisha, Hitachi, Ltd., The Tokyo Electric Power Company, Incorporated. Active years: 1978-1983.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
3 out of 2,916 
1 out of 42,726 
1 out of 177 Years Active: 1978-1983
Title: Innovations of Yoshiji Nii
Introduction
Yoshiji Nii is a notable inventor based in Kawaguchi, Japan. He has made significant contributions to the field of digital protective relaying systems, holding a total of 4 patents. His work has been instrumental in enhancing the safety and efficiency of electric power transmission.
Latest Patents
One of his latest patents is a digital protective relaying system designed to protect electric power transmission lines. This system includes a digital protective relay equipped with a computer at each end of the transmission line. It receives electrical data in digital form from the electric stations, allowing for ordinary protective operations. When a control condition occurs in one station, the information is sent to the digital protective relay at the opposite end, which adjusts the operational steps of the computer within the relay.
Another significant patent is an input setting method for digital operational devices. This method involves a protective relaying apparatus that includes an input setting switch for data configuration, a digital operational device for executing relaying operations, and a memory device for data storage. The process entails setting data via the input switch, storing it in memory, comparing it with previously stored data, and executing the relaying operation when the data matches. An alarm signal is issued if the data does not match.
Career Highlights
Yoshiji Nii has worked with prominent companies such as Tokyo Shibaura Denki and Hitachi, Ltd. His experience in these organizations has contributed to his expertise in the field of electrical engineering and protective relaying systems.
Collaborations
Throughout his career, Nii has collaborated with notable colleagues, including Ryotaro Kondow and Takayuki Matsuda. These partnerships have fostered innovation and development in their respective projects.
Conclusion
Yoshiji Nii's contributions to digital protective relaying systems have significantly impacted the electrical engineering field. His innovative patents and collaborations reflect his dedication to enhancing safety in power transmission.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile