Location History:
- Kanagawa, JP (1989)
- Kangawa, JP (1992)
- Tokyo, JP (2003)
Company Filing History:
2 out of 95 
2 out of 150 
1 out of 308 Years Active: 1989-2003
Title: The Innovative Contributions of Takeharu Shizume
Introduction
Takeharu Shizume is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of engineering, particularly in the development of hydraulic systems and vibration control mechanisms. With a total of 3 patents to his name, Shizume's work reflects a commitment to enhancing the functionality and safety of various structures and devices.
Latest Patents
One of Shizume's latest patents is a caster designed for wheelchairs and similar applications. This innovative caster utilizes a link mechanism to support a wheel, where one end of the link connects to a rotation axis of a bracket through a rubber member. This design allows for the absorption of oscillation or shock, enhancing the stability of the wheelchair. Another significant patent is a cylinder lock device for use in structures. This hydraulically-operated piston device is installed between the frame of a structure and a separate vibration-resisting element. It allows for the adjustment of the frame's rigidity by changing the connection condition between the frame and the vibration-resisting element. The operation of the piston device is controlled by a valve, which can be adjusted to modify the coefficient of damping, providing flexibility and rigidity as needed.
Career Highlights
Throughout his career, Takeharu Shizume has worked with prominent companies such as Kayaba Kogyo and Kajima Corporation. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects. His work has had a lasting impact on the engineering field, particularly in the areas of hydraulic systems and structural integrity.
Collaborations
Shizume has collaborated with several talented individuals in his field, including Toshiaki Kamei and Yasukuni Watanabe. These collaborations have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Takeharu Shizume's contributions to innovation and engineering are noteworthy. His patents demonstrate a deep understanding of hydraulic systems and their applications in real-world scenarios. Through his work, he continues to influence the field and inspire future inventors.