Yoshikuni Fujihashi

Title: Innovations of Yoshikuni Fujihashi

Introduction

Yoshikuni Fujihashi is a notable inventor based in Hyogo, Japan. He has made significant contributions to the field of high-frequency technology, holding a total of 4 patents. His work primarily focuses on enhancing the performance of antenna switch modules and high-frequency circuits.

Latest Patents

One of his latest patents is the Antenna Switch Module. This innovative module includes a filter that reduces transmission loss, achieving high attenuation across a wide band at harmonic frequencies. The design incorporates a filter, an antenna switch circuit, and an adjustment line. The filter is designed to pass fundamental frequencies while maintaining an attenuation pole. The antenna switch circuit is responsible for switching antennas, and the adjustment line connects the filter to the antenna switch circuit, adjusting its length to prevent impedance mismatches at harmonic frequencies.

Another significant patent is the High-Frequency Module and Radio Device. This invention consists of two sections: the first high-frequency circuit features a first filter circuit, while the second high-frequency circuit includes a second filter circuit. At least one of these circuits is housed in a conductive case, which effectively attenuates spurious signals. This design addresses the issue of undesirably increased output levels of spurious signals from the high-frequency module.

Career Highlights

Yoshikuni Fujihashi has worked with prominent companies such as Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His experience in these organizations has contributed to his expertise in high-frequency technologies and innovations.

Collaborations

Throughout his career, Fujihashi has collaborated with talented individuals, including Koji Hashimoto and Hiroshi Kushitani. These collaborations have likely enriched his work and led to further advancements in his field.

Conclusion

Yoshikuni Fujihashi's contributions to high-frequency technology through his patents demonstrate his innovative spirit and technical expertise. His work continues to influence advancements in antenna and circuit design, showcasing the importance of innovation in technology.