This inventor holds 18 USPTO granted patents, primarily in Power Amplification. Top assignees: Murata Manufacturing Co., Ltd., Sanyo Electric Co., Ltd.. Active years: 1991-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Moriguchi, JP (1994 - 1996)
- Kyoto, JP (1991 - 2022)
Company Filing History:
15 out of 13,796 
3 out of 8,782 Years Active: 1991-2025
Areas of Expertise:
Title: **Innovator Profile: Takashi Yamada**
Introduction
Takashi Yamada, a prominent inventor based in Kyoto, Japan, has made significant contributions to the field of electrical engineering. With a total of 11 patents to his name, Yamada's innovations primarily focus on power amplifying circuits and modules, showcasing his expertise in this specialized area.
Latest Patents
Among his latest patents are two notable inventions: the **Power Amplifying Circuit** and the **Power Amplifier Module**. The power amplifying circuit is designed to include multi-stage power amplifiers, bias circuits, and a control circuit. The bias circuits efficiently output corresponding bias currents based on control currents, while the control circuit regulates these currents based on a control voltage. This innovative approach enhances the performance and efficiency of power amplifiers by using a first stage of parallel-connected power amplifiers.
The power amplifier module, on the other hand, encompasses a substrate with an amplifier circuit made up of multiple transistors. It includes a bump and various circuits such as harmonic termination and output matching circuits. These components are intricately arranged to ensure optimal performance, showcasing Yamada's deep understanding of circuit design and functionality.
Career Highlights
Throughout his career, Takashi Yamada has been associated with notable companies in the industry, including Murata Manufacturing Co., Ltd. and Sanyo Electric Co., Ltd. His work in these organizations has not only contributed to his personal growth as an inventor but also advanced the technologies employed in electrical engineering.
Collaborations
Takashi Yamada has collaborated with several talented individuals during his career, including Satoshi Tanaka and Akihito Nagamatsu. These collaborations have facilitated the exchange of ideas and led to the development of groundbreaking technologies in the field.
Conclusion
Takashi Yamada's innovative spirit and dedication to advancing technology have made him a remarkable figure in the realm of electrical engineering. With numerous patents showcasing his imaginative inventions, he continues to influence the industry and inspire future inventors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile