Tohru Sunaga

Title: Tohru Sunaga: Innovator in Mobile Communication Systems

Introduction

Tohru Sunaga is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of mobile communication, holding a total of 6 patents. His work focuses on enhancing communication systems between base stations and user terminals.

Latest Patents

Sunaga's latest patents include innovative designs for mobile communication systems. One of his notable inventions is a mobile communication system that facilitates communication between a base station and a user terminal. This system transmits a first radio signal containing identification information and a reference signal. The user terminal then responds by sending a second radio signal that includes quality information. This process allows the base station to determine the optimal directivity based on the received signals. Another significant patent involves a mobile communication system that supports both cellular communication and direct device-to-device (D2D) communication. This system utilizes frequency division multiplexing for cellular communication and code division multiplexing for D2D communication, enhancing the efficiency of data transmission.

Career Highlights

Throughout his career, Tohru Sunaga has worked with notable companies such as Kyocera Corporation and KDDI Corporation. His experience in these organizations has contributed to his expertise in mobile communication technologies.

Collaborations

Sunaga has collaborated with several professionals in the field, including Kugo Morita and Akinori Iwabuchi. These collaborations have further enriched his work and innovations in mobile communication systems.

Conclusion

Tohru Sunaga's contributions to mobile communication systems demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to advancing communication technology, making a lasting impact in the industry.