Location History:
- Itami, JP (1992)
- Tokyo, JP (2007 - 2009)
Company Filing History:
2 out of 21,351 
1 out of 15,844 
Years Active: 1992-2009
Title: Hiroaki Seki: Innovator in Amplifier Technology
Introduction
Hiroaki Seki is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of amplifier technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and performance of amplifiers, which are crucial components in various electronic devices.
Latest Patents
One of Seki's latest patents is a high-power amplifier. This innovative device changes the matching conditions of an output matching circuit connected between a final stage amplifying element and an output terminal in response to the output power of the amplifying element. This design greatly improves efficiency at low output power without compromising performance at maximum output. Additionally, it eliminates the need for a DC-DC converter, preventing increases in size or cost. Another notable patent is for a high-frequency amplifier. This amplifier features a constant voltage driven amplifier using a bipolar transistor, with its base biased by a constant voltage, and a constant current driven amplifier, also using a bipolar transistor, with its base biased by a constant current. The idle current of the constant current driven amplifier is set at a low value, allowing for adjustments in the idle current of the constant voltage driven amplifier, which are then combined in parallel.
Career Highlights
Hiroaki Seki has worked with notable companies such as Mitsubishi Denki Kabushiki Kaisha and Mitsubishi Electric Corporation. His experience in these organizations has contributed to his expertise in amplifier technology and innovation.
Collaborations
Throughout his career, Seki has collaborated with talented individuals, including Kazutomi Mori and Shintaro Shinjo. These partnerships have fostered a creative environment that has led to advancements in amplifier design.
Conclusion
Hiroaki Seki's contributions to amplifier technology demonstrate his commitment to innovation and efficiency. His patents reflect a deep understanding of electronic components and their applications. His work continues to influence the field and inspire future advancements in technology.
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.