This inventor holds 3 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1988-1998.
Company Filing History:
Years Active: 1988-1998
Title: Tadayuki Kamisaka: Innovator in Communication Technology
Introduction
Tadayuki Kamisaka is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of communication technology, holding a total of 3 patents. His innovative work has paved the way for advancements in newspaper dispatch systems and modulation techniques.
Latest Patents
One of Kamisaka's latest patents is a subscription newspaper dispatching system. This system allows newspapers to be dispatched to subscriber households through satellite communication. The head office of a newspaper publishing company electronically creates each paper sheet of the national news section as first newspaper data. This data is then transmitted to branch offices via a communication satellite. In each branch office, the received first newspaper data is combined with local news data to create third newspaper data, which is encrypted and broadcasted to individual subscriber households. Subscribers can then receive, decrypt, and display the newspaper data according to their preferences.
Another significant patent is a modulator for generating a burst-like modulated wave. This modulator is used in multi-carrier transmission systems, where multiple modulated waves exist on the same transmission line. By inverting the polarities of the transmission code before and after the carrier on/off timing, the modulator reduces interference with adjacent channels while maintaining transmission efficiency.
Career Highlights
Kamisaka is currently employed at Hitachi, Ltd., where he continues to innovate in the field of communication technology. His work has been instrumental in developing systems that enhance the efficiency and effectiveness of data transmission.
Collaborations
Throughout his career, Kamisaka has collaborated with notable colleagues such as Kazuo Yagi and Satoshi Ikehama. These collaborations have contributed to the advancement of technology in their respective fields.
Conclusion
Tadayuki Kamisaka is a distinguished inventor whose work in communication technology has led to significant advancements. His patents reflect a commitment to innovation and a deep understanding of the complexities of data transmission. His contributions continue to influence the industry and inspire future developments.