Location History:
- Wako, JP (1996 - 2014)
- Saitama, JP (1996 - 2016)
Company Filing History:
9 out of 22,004 
4 out of 10,092 
Years Active: 1996-2016
Title: **Innovative Contributions of Kiyoshi Nakajima**
Introduction
Kiyoshi Nakajima, an inventor based in Saitama, Japan, has made significant strides in the field of damping technology. With a total of 13 patents to his name, his innovative approaches have helped improve the functionality and efficiency of various damping systems, particularly in automotive applications.
Latest Patents
Among Nakajima's latest inventions are two notable patents that showcase his expertise in variable damping force technology. The first patent describes a solenoid-type variable damping force damper. This device enhances the strength of the piston and prevents wire breakage in the electromagnetic coil. It features a piston main body made of a ferromagnetic material, along with an outer yoke and an inner yoke, allowing for improved performance in varying conditions.
The second patent involves a damper that comprises an inner cylinder defining an inner chamber, an outer cylinder with a reservoir chamber, and a sophisticated damping-force control device. This device adjusts the damping force by controlling the flow rate of an operating oil between the inner reservoir chambers. The valve element operates on a valve seat through electromagnetic force, demonstrating Nakajima's commitment to innovation in hydraulic systems.
Career Highlights
Throughout his career, Nakajima has been associated with prominent automotive companies, including Honda Motor Co., Ltd. and Honda Giken Kogyo Kabushiki Kaisha. His work with these organizations allowed him to refine his inventions and apply them in real-world automotive scenarios, contributing to advancements in vehicle suspension systems.
Collaborations
Kiyoshi Nakajima has collaborated with other skilled professionals in the field, including Yozo Kami and Yasunori Oku. These collaborations have fostered an environment of innovation and creativity, leading to the successful development of multiple patents that enhance automotive technology.
Conclusion
Kiyoshi Nakajima stands out as a significant contributor to the realm of damping technology. With his impressive portfolio of patents and collaborations with esteemed colleagues, he continues to push the boundaries of innovation. His work not only benefits the automotive industry but also sets a standard for future advancements in damping systems.