Location History:
- Neyagawa, JA (1977)
- Moriguchi, JP (1981 - 1982)
- Hirakata, JP (1983)
- Miyazaki, JP (1986 - 1991)
- Kawasaki, JP (1993)
Company Filing History:
Years Active: 1977-1993
Title: Fumio Fukushima: Innovator in Dielectric Filter Technology
Introduction
Fumio Fukushima is a prominent inventor based in Miyazaki, Japan. He has made significant contributions to the field of dielectric filter technology, holding a total of 8 patents. His innovative designs have paved the way for advancements in electronic components.
Latest Patents
Fukushima's latest patents include a flat type dielectric filter. This filter features a substantially U-shaped strip line designed to ensure that each center frequency of spurious output deviates from each odd number frequency times the center frequency of the dielectric filter. The design includes a first portion that curves to form an open loop, along with two second portions that are wider than the first portion. These second portions extend in opposite directions from the ends of the first portion. The filter's input/output electrodes can be formed on a different layer from the resonator layer, allowing for a reduction in size. The U-shaped strip line can be vertically folded to further minimize dimensions. The filter also incorporates conducting plates that sandwich dielectric substrates, which are coated with epoxy resin or dielectric substances.
Career Highlights
Fumio Fukushima is associated with Matsushita Electric Industrial Co., Ltd., where he has contributed to various innovative projects. His work has focused on creating resonators that utilize strip lines, which include open loops and strategically placed capacitors to save space and reduce dielectric loss. His designs have led to the development of filters that utilize multiple resonators, enhancing their performance through various coupling methods.
Collaborations
Fukushima has collaborated with notable coworkers such as Yoji Fukuda and Tsuneharu Nitta. Their combined expertise has contributed to the advancement of dielectric filter technology.
Conclusion
Fumio Fukushima's contributions to the field of dielectric filters demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to advancing electronic technology, making him a significant figure in the industry.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.