Shigeyuki Fujieda

Title: Shigeyuki Fujieda: Innovator in Antenna Technology

Introduction

Shigeyuki Fujieda is a prominent inventor based in Hakusan, Japan. He has made significant contributions to the field of antenna technology, holding three patents that showcase his innovative approach to radio communication apparatuses. His work has implications for various applications in wireless communication.

Latest Patents

Fujieda's latest patents include an antenna apparatus and a radio communication apparatus. These inventions are designed to separately control resonance frequencies in both basic and higher modes, providing a wide bandwidth for variable resonance frequencies. The antenna apparatus features a feeding electrode, a loop-shaped radiation electrode, a capacitance portion, and inductors. The capacitance portion is formed by a gap between the open end of the loop-shaped radiation electrode and the feeding electrode. The inductor is strategically placed to optimize current flow in both modes. Another notable patent is an antenna device and wireless communication apparatus that can obtain and vary multiple resonant frequencies over a wide range. This device includes a first antenna unit with a feed electrode, a first radiation electrode, and a first frequency-variable circuit, which utilizes variable-capacitance diodes to adjust the resonant frequency.

Career Highlights

Fujieda is currently employed at Murata Manufacturing Co., Ltd., a leading company in the electronics industry. His work at Murata has allowed him to focus on advancing antenna technology and enhancing wireless communication systems. His innovative designs have contributed to the company's reputation for excellence in electronic components.

Collaborations

Fujieda has collaborated with notable colleagues, including Kenichi Ishizuka and Kazunari Kawahata. These collaborations have fostered a creative environment that encourages the development of cutting-edge technologies in the field of antennas and wireless communication.

Conclusion

Shigeyuki Fujieda is a key figure in the advancement of antenna technology, with a focus on enhancing wireless communication systems. His patents reflect a commitment to innovation and excellence in the field. His contributions continue to shape the future of communication technology.