Location History:
- Komoro, JP (1996 - 2006)
- Tokyo, JP (2004 - 2006)
Company Filing History:
5 out of 3,781 
3 out of 35 
2 out of 42,496 
Years Active: 1996-2006
Title: Innovations of Tsuyoshi Shibuya
Introduction
Tsuyoshi Shibuya is a notable inventor based in Komoro, Japan. He has made significant contributions to the field of high-frequency power amplifiers and wireless communication systems. With a total of nine patents to his name, Shibuya's work has had a considerable impact on modern communication technologies.
Latest Patents
Shibuya's latest patents include a high-frequency power amplifier module and a wireless communication system. The high-frequency power amplifier module features a multistage amplifier construction that includes an input terminal, output terminal, control terminal, and mode switching terminal. The first amplification stage utilizes a dual gate FET, with a bias voltage applied to both gates from the control and mode switching terminals. This design allows for the amplification of radio signals, with modes for GSM and EDGE operations. Additionally, his high-frequency power amplifier of an open-loop type outputs a signal level corresponding to the required output level, controlled by a power supply voltage for each output power FET.
Career Highlights
Throughout his career, Tsuyoshi Shibuya has worked with prominent companies such as Renesas Technology Corporation and Hitachi Tohbu Semiconductor, Ltd. His experience in these organizations has contributed to his expertise in developing advanced communication technologies.
Collaborations
Shibuya has collaborated with notable coworkers, including Tetsuaki Adachi and Masahito Numanami. Their joint efforts have furthered the development of innovative solutions in the field of wireless communication.
Conclusion
Tsuyoshi Shibuya's contributions to high-frequency power amplifiers and wireless communication systems demonstrate his significant role as an inventor. His patents reflect a commitment to advancing technology in this vital area.