Hisanori Ehara

Title: Hisanori Ehara: Innovator in Surface Acoustic Wave Technology

Introduction

Hisanori Ehara is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of surface acoustic wave (SAW) technology, holding a total of 7 patents. His work focuses on developing advanced filters that enhance communication systems.

Latest Patents

Among his latest patents is a transmitting filter that includes SAW resonators. This innovative surface acoustic wave filter features an antenna terminal, a transmitting filter, and a variable branching line, all coupled to the antenna terminal. The design incorporates a first end series-arm SAW resonator, a second end series-arm SAW resonator, and a middle series-arm SAW resonator, which is coupled between the first and second end series-arm SAW resonators. Each of the first and second end series-arm SAW resonators has a first resonance frequency, while the middle series-arm SAW resonator has a second resonance frequency that is higher than the first. Another notable patent is an acoustic wave branching filter that includes a transmitting filter with optimal power handling, further showcasing his expertise in this area.

Career Highlights

Hisanori Ehara is currently employed at Oki Electric Industry Co., Ltd., where he continues to innovate and develop cutting-edge technologies. His work has significantly impacted the field of telecommunications, particularly in enhancing the performance of acoustic wave filters.

Collaborations

Throughout his career, Ehara has collaborated with talented individuals such as Tomokazu Komazaki and Yoshiaki Fujita. These collaborations have contributed to the advancement of his research and the successful development of his patents.

Conclusion

Hisanori Ehara is a distinguished inventor whose work in surface acoustic wave technology has led to numerous patents and advancements in communication systems. His contributions continue to shape the future of this field.