Location History:
- Hoya, JP (1982)
- Tokyo, JP (1982 - 2016)
Company Filing History:
3 out of 522 
3 out of 213 
Years Active: 1982-2016
Title: Yasunobu Ishii: Innovator in Signal Transmission Technologies
Introduction
Yasunobu Ishii is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of signal transmission technologies, holding a total of 6 patents. His innovative work focuses on enhancing the efficiency and effectiveness of signal transmission mediums.
Latest Patents
One of Ishii's latest patents is a signal transmission medium conversion mechanism that includes a probe tip and a flexible transmission line. This invention is designed for transmitting EHF band signals from a first point to a second point. It features a first end for signal exchange with the first point, a second end for signal exchange with the second point, and a flexible transmission line portion that connects both ends. The transmission line includes strip conductors formed down the center of a flexible printed circuit board, establishing electrical connections between the signal lines at both ends. Additionally, it incorporates a pair of grounding sheets arranged in parallel, creating cavities that enhance signal transmission.
Another notable patent by Ishii is an electromagnetic wave transmission medium comprising a flexible circular tube with a solid circle-shaped ridge disposed within. This medium is designed for mass production and maintains the integrity of the transmission mode. The flexible cylindrical tube is molded to ensure a uniform cross-sectional shape along its axis. It features an inner wall made of a conductive layer, with a cross-sectional shape resembling a circular ridge waveguide that is symmetric and oriented along the cylindrical axis.
Career Highlights
Throughout his career, Yasunobu Ishii has worked with notable companies, including Nippon Telegraph and Telephone Public Corporation and Yokowo Co., Ltd. His experience in these organizations has contributed to his expertise in signal transmission technologies.
Collaborations
Ishii has collaborated with several professionals in his field, including Kazuyoshi Asai and Katsuhiko Kurumada. These collaborations have further enriched his work and innovations.
Conclusion
Yasunobu Ishii is a distinguished inventor whose contributions to signal transmission technologies have made a significant impact in the field. His innovative patents reflect his commitment to advancing technology and improving communication systems.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.