Location History:
- Aichi, JP (1990 - 2000)
- Gifu, JP (2006 - 2018)
Company Filing History:
5 out of 27,375 
5 out of 16,453 
1 out of 13,247 Years Active: 1990-2018
Title: Motoyoshi Kitagawa: Innovator in Loudspeaker Technology
Introduction
Motoyoshi Kitagawa is a prominent inventor based in Gifu, Japan. He has made significant contributions to the field of audio technology, particularly in loudspeakers and printed wiring boards. With a total of 11 patents to his name, Kitagawa's work reflects a deep understanding of both engineering and design.
Latest Patents
Among his latest patents, Kitagawa has developed a loudspeaker that features a unique design. This loudspeaker includes a frame, a diaphragm, an edge connecting portion, a magnetic circuit with a magnetic gap, and a voice coil body. The edge connecting portion effectively connects the outer peripheral end of the diaphragm to the frame. The diaphragm itself is positioned inside the frame and consists of both a planar diaphragm and a reinforcing diaphragm. The reinforcing diaphragm is crafted from resin and features a thick portion on its outer periphery and a recessed portion towards the center.
Another notable patent is for a method of manufacturing a component-embedded printed wiring board (PWB). This innovative PWB design includes a fluid-resin embedding section that covers electronic components, a resin flow-speed accelerator, and bonding resin. This structure allows for efficient filling of the embedding section with resin, ensuring that no air is left behind, which results in a reliable PWB.
Career Highlights
Kitagawa has worked with several notable companies throughout his career, including Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.
Collaborations
Throughout his career, Kitagawa has collaborated with talented individuals such as Akira Mishima and Shigeharu Sumi. These collaborations have further enriched his work and led to advancements in technology.
Conclusion
Motoyoshi Kitagawa's contributions to loudspeaker technology and printed wiring boards demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to improving audio technology and electronic components. His work continues to influence the industry and inspire future inventors.
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.