Location History:
- Osaka, JP (1995 - 2000)
- Amagasaki, JP (1999 - 2005)
- Hyogo, JP (1998 - 2006)
Company Filing History:
Years Active: 1995-2006
Title: **Innovator Shunichi Seki: A Pioneer in Surface Acoustic Wave Technology**
Introduction
Shunichi Seki, an esteemed inventor based in Hyogo, Japan, has made significant contributions to the field of surface acoustic wave (SAW) technology. With a remarkable portfolio of 13 patents to his name, Seki has dedicated his career to advancing innovations that enhance communication and sensor technologies.
Latest Patents
Seki's latest inventions include a cutting-edge surface acoustic wave (SAW) resonator and a SAW filter and antenna duplexer utilizing this resonator. The SAW resonator features an interdigitated transducer (IDT) electrode formed on a piezoelectric substrate, complemented by reflector electrodes on both sides. The unique design of the IDT electrode, which consists of first and second finger-electrodes along with strip-line electrodes, allows for acoustic coupling without overlapping, significantly reducing loss due to resistance. This innovation not only minimizes the need for a common bus-bar electrode but also contributes to the downsizing of the SAW resonator.
In another impressive patent, Seki developed a surface acoustic wave device, as well as a mobile communication device and sensor that utilize this device. The design minimizes loss and enhances performance characteristics. The IDT electrodes and reflector are meticulously arranged on a piezoelectric substrate cut at a precise angle, facilitating the excitation of a leaky surface acoustic wave (LSAW). Notably, the resonance frequency is engineered to maximize efficiency, allowing the use of a Rayleigh surface acoustic wave (RSAW) that overcomes conventional propagation losses.
Career Highlights
Throughout his career at Matsushita Electric Industrial Co., Ltd., Seki has remained at the forefront of technology innovations. His work, specifically in the realm of SAW technology, has not only garnered multiple patents but also has had a lasting impact on various applications in modern communication systems.
Collaborations
Seki has collaborated with notable colleagues, including Keiji Onishi and Yutaka Taguchi, both of whom have contributed to elevating the company's research and development in cutting-edge technologies. Together, they have been instrumental in driving forward concepts that have reshaped modern communication devices.
Conclusion
Shunichi Seki stands out as a prominent inventor whose work in surface acoustic wave technology has pushed the boundaries of innovation. With an impressive array of patents and collaborative efforts within Matsushita Electric Industrial Co., Ltd., his contributions continue to play a pivotal role in enhancing communication systems and sensor technologies globally.