Location History:
- Tokyo, JP (1985)
- Otawara, JP (1991 - 1993)
- Tochigi, JP (1993)
- Kawasaki, JP (1995 - 2001)
Company Filing History:
8 out of 39,244 
2 out of 43 Years Active: 1985-2001
Title: Innovations of Hiroyuki Sogo
Introduction
Hiroyuki Sogo is a prominent inventor based in Kawasaki, Japan. He holds a total of eight patents, showcasing his significant contributions to the field of technology and engineering. His work primarily focuses on high-frequency circuits and wireless communication systems.
Latest Patents
One of his latest patents is a high-frequency circuit apparatus. This apparatus includes two high-frequency circuits mounted on a printed circuit board. It features two rows of first plated through holes that connect upper and lower ground plates on the upper and lower surfaces of the printed circuit board. These holes are arrayed in a first direction, allowing the two high-frequency circuits to be disposed between them. Additionally, there are at least two columns of second plated through holes arrayed in a second direction, connecting the ground plates to form a waveguide resonator. A variable capacitance diode can be connected to a conductor pattern to adjust the resonance frequency of the waveguide resonator.
Another significant patent is for a base transceiver station and subscriber unit in a wireless local loop system using a personal handy-phone system. This system consists of multiple cell stations, each accommodating several subscriber units. It includes a hybrid section that integrally handles signals transmitted and received via a single antenna. The system is designed to be compact, expand service areas without increasing interference, and improve transmission quality and reliability.
Career Highlights
Hiroyuki Sogo has worked with notable companies such as Fujitsu Corporation and Fuji Electrochemical Co., Ltd. His experience in these organizations has contributed to his expertise in developing innovative technologies.
Collaborations
Throughout his career, Sogo has collaborated with talented individuals, including Yasuyuki Kondo and Kazuhisa Yamazaki. These collaborations have likely enhanced his work and led to further advancements in his inventions.
Conclusion
Hiroyuki Sogo's contributions to technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the fields of high-frequency circuits and wireless communication systems.