Company Filing History:
7 out of 730 
1 out of 307 
1 out of 264 
Years Active: 2003-2019
Title: **The Innovations of Toshifumi Tsuruta: Pioneer of Magnetic Gear Technology**
Introduction
Toshifumi Tsuruta, an accomplished inventor residing in Nagano, Japan, has made significant contributions to the field of mechanical engineering. With a remarkable portfolio of 10 patents, Tsuruta’s innovative designs, particularly in gear technology and lens mechanisms, showcase his expertise and dedication to advancing technology.
Latest Patents
Among Tsuruta's latest inventions are two notable patents. The first is a **Planetary Gear Speed Reduction Device and Driving Mechanism**. This device features a magnetic sun gear and a plurality of magnetic planetary gears that revolve around the sun gear while rotating. An intriguing aspect of this invention is the design where the outside diameters of both the magnetic sun gear and magnetic planetary gears are equal.
The second notable patent is a **Lens Driving Device**. This device includes a movable lens body that holds a lens and a driving mechanism for moving the lens body along the optical axis. It consists of coils attached to the movable lens and a magnet positioned opposite the coils. Remarkably, this device adheres to a conditional expression regarding the gap between the coils and the magnet, optimizing its functionality.
Career Highlights
Throughout his career, Toshifumi Tsuruta has held positions at reputable companies, including Nidec Sankyo Corporation and Kabushiki Kaisha Sankyo Seiki Seisakusho. His work with these organizations has significantly influenced the design and application of precision gear systems and optical devices.
Collaborations
In his professional journey, Tsuruta has collaborated with notable colleagues such as Tadashi Takeda and Hidekazu Yoneyama. These partnerships have undoubtedly enriched his inventive process, fostering an environment of innovation and creativity.
Conclusion
Toshifumi Tsuruta stands as a key figure in the realm of innovation, particularly in magnetic gear technology and lens mechanisms. His patents not only reflect his ingenuity but also highlight the potential for further advancements in engineering. As his work continues to inspire future generations of inventors, Tsuruta’s contributions will remain influential in the ongoing evolution of technology.