Company Filing History:
1 out of 2,916 
1 out of 1,233 Years Active: 1985-2021
Title: Fumio Yamamoto: Innovator in Coil Springs and Incandescent Lamps
Introduction
Fumio Yamamoto is a notable inventor based in Yokohama, Japan. He has made significant contributions to the fields of coil springs and incandescent lamps. With a total of 2 patents to his name, his work reflects a commitment to innovation and engineering excellence.
Latest Patents
Yamamoto's latest patents include a unique coil spring design. This invention features a corresponding portion at the end of the coil axis, which enhances the performance of the spring. The design ensures that the gap between wire materials is optimized for better functionality. Additionally, he has developed an incandescent lamp that incorporates an infrared ray reflection film. This film is formed on the bulb's surfaces and is designed to improve the transmittance of visible rays while effectively reflecting infrared rays.
Career Highlights
Throughout his career, Fumio Yamamoto has worked with prominent companies such as Tokyo Shibaura Denki and NHK Spring Co., Ltd. His experience in these organizations has contributed to his expertise in developing innovative products.
Collaborations
Yamamoto has collaborated with notable individuals in the industry, including Akira Kawakatsu and Toshinori Watanabe. These partnerships have likely enriched his work and led to further advancements in his inventions.
Conclusion
Fumio Yamamoto's contributions to the fields of coil springs and incandescent lamps demonstrate his innovative spirit and engineering prowess. His patents reflect a deep understanding of material science and design principles.