This inventor holds 3 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1987.
Company Filing History:
Years Active: 1987
Title: Fumio Tsujii: Innovator in Navigation Technology
Introduction
Fumio Tsujii is a notable inventor based in Mito, Japan. He has made significant contributions to the field of navigation technology, holding a total of 3 patents. His work focuses on enhancing the functionality and accuracy of navigation systems for vehicles.
Latest Patents
One of Tsujii's latest patents is a navigation system with the capability of instructing running direction. This innovative system displays road map information and the running traces of a car on a cathode ray tube. It utilizes bearing sensors to detect the car's running direction and a detector to measure the running distance by monitoring the revolution of the car wheel. The controller processes this information to compute the car's current position and provides voice instructions to the driver based on the determined angular difference at road crossings.
Another significant patent is a navigation apparatus for automotive use. This device includes a distance sensor that tracks the vehicle's traveled distance and a direction sensor that monitors its advancing direction. The information storage unit contains map data, and the signal processor computes the vehicle's present position, displaying it on a color cathode-ray tube alongside the relevant map data.
Career Highlights
Fumio Tsujii is associated with Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has allowed him to develop advanced navigation systems that improve driving safety and efficiency.
Collaborations
Tsujii has collaborated with notable coworkers, including Akira Endo and Takanori Shibata. Their combined expertise has contributed to the successful development of innovative navigation technologies.
Conclusion
Fumio Tsujii's contributions to navigation technology have made a significant impact in the automotive industry. His patents reflect a commitment to enhancing vehicle navigation systems, ensuring safer and more efficient travel for drivers.