Company Filing History:
7 out of 15,928 
3 out of 21,351 
Years Active: 2002-2023
Title: Keitaro Yamagishi: Innovator in Transmission Path Design
Introduction
Keitaro Yamagishi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of transmission path design, holding a total of 10 patents. His work focuses on enhancing the efficiency and effectiveness of transmission systems.
Latest Patents
Yamagishi's latest patents include a transmission path design assistance system, a transmission path design assistance method, and a computer-readable medium storing a transmission path design assistance program. The transmission path design assistance system is designed to assist in the creation of a transmission path with varying reflection specification values for different frequencies. This system comprises an acquisition unit that gathers reflection specification values and constraints of characteristic impedance distribution. Additionally, it features a computation processing unit that includes several components: a reflection characteristic calculation unit, a reflection characteristic modification unit, a characteristic impedance distribution calculation unit, and a characteristic impedance distribution modification unit. These components work together to optimize the design of transmission paths.
Another notable invention is the optical module, which includes a CAN package with a stem and lead pins protruding from it. The design allows for efficient electrical connections between the lead pins and a board with pads for connecting the lead pins.
Career Highlights
Throughout his career, Yamagishi has worked with esteemed companies such as Mitsubishi Electric Corporation and Mitsubishi Denki Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in the field of transmission path design.
Collaborations
Yamagishi has collaborated with notable colleagues, including Hiroshi Itakura and Yoshihiro Akeboshi. Their joint efforts have further advanced the innovations in transmission path technology.
Conclusion
Keitaro Yamagishi's contributions to transmission path design have established him as a key figure in the field. His innovative patents and collaborations reflect his commitment to advancing technology in this area.