Location History:
- Yokohama, JP (1988)
- Kanagawa, JP (1990 - 2004)
Company Filing History:
Years Active: 1988-2004
Title: Nobuo Hareyama: Innovator in High-Frequency Power Amplification
Introduction
Nobuo Hareyama is a distinguished inventor based in Kanagawa, Japan. He has made significant contributions to the field of electronics, particularly in the development of high-frequency power amplifiers. With a total of 10 patents to his name, Hareyama's work has had a profound impact on modern communication technologies.
Latest Patents
One of Hareyama's latest innovations is a high-frequency power amplifier system. This system includes multiple individual amplifiers connected in parallel, utilizing switching-driven FETs. The design features a fixed drain voltage applied to one amplifier, while another amplifier receives a variable drain voltage through a DC-DC converter. This converter adjusts the voltage based on a control signal, allowing for efficient operation. The power amplifier can be turned on or off depending on the output power region, minimizing efficiency loss. Additionally, the circuit constants of the matching circuit are variable, enabling continuous control of the amplifier's output.
Another notable patent involves an antenna apparatus and a transmission/reception apparatus. This design consists of two housings connected by a folding section, with earth circuit boards that house antenna circuitry. A flexible conduction member connects these circuit boards, establishing a predetermined earth pattern length during use. This innovative approach enhances the functionality of the antenna apparatus in communication systems.
Career Highlights
Nobuo Hareyama is currently employed at Sony Corporation, where he continues to push the boundaries of technology. His work has been instrumental in advancing the capabilities of electronic devices, particularly in the realm of wireless communication.
Collaborations
Throughout his career, Hareyama has collaborated with notable colleagues, including Hiroshi Yokoyama and Mitsuo Ohsawa. These partnerships have fostered a creative environment that has led to groundbreaking innovations in their field.
Conclusion
Nobuo Hareyama's contributions to high-frequency power amplification and antenna technology exemplify his dedication to innovation. His patents reflect a commitment to enhancing communication systems, making him a key figure in the electronics industry.
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.