Yoshimasa Oh-Hashi

Title: Innovations of Yoshimasa Oh-Hashi

Introduction

Yoshimasa Oh-Hashi is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of radar technology, holding a total of 8 patents. His work focuses on stabilizing methods for synthetic aperture radar and route prediction for flying targets.

Latest Patents

Oh-Hashi's latest patents include a stabilizing method of synthetic aperture radar and a position determining method by the radar. This innovative method involves arranging at least three repeaters in different positions on the ground or sea. A radar mounted on a platform, such as an aircraft, transmits a radio frequency signal to these repeaters. Each repeater frequency-modulates and amplifies the received signal, returning it to the radar. The radar then calculates the distance between the radar platform and each repeater based on the time taken for transmission and reception, as well as the phase information of the received signal. By knowing the positions of the repeaters and the calculated distances, the radar platform's position can be accurately determined. Furthermore, a reference signal for phase compensation is generated to eliminate phase variations of reflected waves received from targets.

Another significant patent is a target route predicting apparatus that utilizes characteristic parameters of terrain information. This apparatus monitors a flying target and predicts its route, even when the target is obscured by geographical features. It comprises an observation unit, a terrain information unit, a prediction unit, and a learning adjustment unit that employs a neural network for accurate predictions.

Career Highlights

Throughout his career, Yoshimasa Oh-Hashi has worked with prominent companies, including Mitsubishi Electric Corporation. He has also held a significant position as Director General of Technical Research and Development under Sachio Uehara. His expertise in radar technology has made him a valuable asset in the field.

Collaborations

Oh-Hashi has collaborated with notable individuals such as Takahiko Fujisaka and Michimasa Kondo. Their combined efforts have contributed to advancements in radar technology and its applications.

Conclusion

Yoshimasa Oh-Hashi's innovative work in radar technology has led to significant advancements in the field. His patents reflect a deep understanding of complex systems and a commitment to improving technological capabilities. His contributions continue to influence the industry and inspire future innovations.