Masakatsu Tsumura

Title: Innovations of Masakatsu Tsumura

Introduction

Masakatsu Tsumura is a notable inventor based in Shijonawate, Japan. He has made significant contributions to the field of electronic engineering, particularly in the development of advanced band-pass filters. With a total of 2 patents to his name, Tsumura's work showcases his expertise and innovative spirit.

Latest Patents

Tsumura's latest patents include a band-pass filter featuring multilayered coil structures. This invention comprises a shielded housing with first and second chambers, where quarter-wave resonators are strategically placed to couple with input energy and deliver output energy. The design incorporates parallel-circuit resonators that provide interstage coupling, enhancing the filter's performance. Each resonator is crafted with a multilayered coil structure on a finned bobbin, optimizing the overall efficiency of the device.

Another significant patent is the helical resonator band-pass filter with novel coupling means. This design features multiple helical resonators, each with a quarter-wavelength winding. The resonators are shielded from each other by a partition wall, which improves the cutoff characteristics of the filter. This innovation allows for a more rapid cutoff of the applied signal in the high-frequency region compared to the low-frequency region.

Career Highlights

Masakatsu Tsumura is associated with Matsushita Electric Industrial Co., Ltd., a leading company in the electronics industry. His work at this organization has allowed him to push the boundaries of technology and contribute to advancements in electronic components.

Collaborations

Throughout his career, Tsumura has collaborated with esteemed colleagues such as Toshihide Tabuchi and Tsuneharu Fuji. These partnerships have fostered a creative environment that has led to groundbreaking innovations in their field.

Conclusion

Masakatsu Tsumura's contributions to electronic engineering, particularly in the realm of band-pass filters, highlight his innovative capabilities and dedication to advancing technology. His patents reflect a deep understanding of electronic principles and a commitment to improving device performance.