Kazuyuki Yamamoto

Title: Kazuyuki Yamamoto: Innovator in Key Telephone Systems

Introduction

Kazuyuki Yamamoto is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of telecommunications, particularly in the development of key telephone systems. With a total of three patents to his name, Yamamoto's work has had a lasting impact on communication technology.

Latest Patents

Yamamoto's latest patents include a "Control Signal Transmission System for Key Telephone System." This invention allows for the transmission of control signal information in a parallel signal configuration between multiple key telephone sets and a key service unit. The system utilizes transmission lines that correspond one-to-one with individual key telephone sets, ensuring efficient communication. Another significant patent is the "Synchronization System for Key Telephone System." This system transmits key information in the form of a time-division pulse signal, controlled by a counter in the key service unit. The design distinguishes between signals sent from the key service unit and those sent from the key telephone sets, enhancing the clarity and efficiency of communication.

Career Highlights

Throughout his career, Kazuyuki Yamamoto has worked with prominent companies such as Iwasaki Tsushinki Kabushiki Kaisha and Nippon Telegraph and Telephone Public Corporation. His experience in these organizations has contributed to his expertise in telecommunications and innovation.

Collaborations

Yamamoto has collaborated with notable individuals in the field, including Koichi Sekiguchi and Hikaru Takematsu. These partnerships have likely enriched his work and led to advancements in key telephone technology.

Conclusion

Kazuyuki Yamamoto's contributions to key telephone systems demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to improving communication technology, making him a significant figure in the field.