Company Filing History:
3 out of 4,800 
2 out of 264 
2 out of 729 
Years Active: 1998-2017
Title: The Innovations of Toshio Yamamoto
Introduction
Toshio Yamamoto is a notable inventor based in Nagano, Japan. He has made significant contributions to the field of engineering, particularly in the development of advanced motor technologies. With a total of 10 patents to his name, Yamamoto's work has had a lasting impact on various industries.
Latest Patents
One of his latest inventions is a stepping motor that includes a rotor with a rotation shaft and a permanent magnet. This motor features a fixed body with a cylindrical stator that has multiple pole teeth facing the permanent magnet. An urging member is designed to push the rotor toward one side in the motor's axial line direction. The motor's design ensures that when a first sliding load, denoted as 'Ta', is applied to the rotor, it interacts with a detent torque 'Td' and a dynamic torque 'Te' in a specific manner, satisfying the expression: 'Td < Ta < Te'.
Another significant invention is a lens driving apparatus, which includes a lens holder and a driver that provides linear motion to the lens holder along its optical axis. This driver incorporates an electromagnetic mechanism that generates torque around the optical axis and a switching mechanism that converts this torque into a linear driving force. This innovative design allows for a more compact lens driving apparatus, enhancing the functionality of thin cameras and cellular phones equipped with such technology.
Career Highlights
Yamamoto has worked with prominent companies such as Fuji Electric Co., Ltd. and Sankyo Seiki Mfg. Co., Ltd. His experience in these organizations has contributed to his expertise in developing cutting-edge technologies.
Collaborations
Throughout his career, Yamamoto has collaborated with talented individuals, including Akio Izumi and Osamu Sugiyama. These partnerships have fostered innovation and creativity in his projects.
Conclusion
Toshio Yamamoto's contributions to the field of engineering through his patents and collaborations highlight his role as a leading inventor. His work continues to influence advancements in motor technology and optical devices.
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.