Company Filing History:
1 out of 150 
1 out of 2,333 
1 out of 1,440 Years Active: 1980-1992
Title: Innovations of Yoshikazu Maeda
Introduction
Yoshikazu Maeda is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of structural engineering, particularly in the development of innovative solutions to enhance building safety during seismic events and high winds. With a total of 3 patents, his work reflects a commitment to advancing engineering practices.
Latest Patents
One of Maeda's latest patents is the elasto-plastic damper for structures. This invention is designed to protect buildings from the destructive impact of seismic tremors and high winds. The damper features a cylindrical shaft with a constricted waist portion that yields uniformly to external forces from any direction. This elasto-plastic deformation dissipates energy throughout its range of elastic deformation, effectively safeguarding structures. Additionally, the ends of the damper are threaded to facilitate engagement with structural and non-structural members of buildings.
Another significant patent is the column base structure. This invention involves a pair of column-base metal fittings connected to the lower part of a column, which consists of main column members and connecting members. The fittings are fixedly attached to a concrete foundation using anchor bolts and nuts. A horizontal member with a predetermined cross-sectional area is integrally fitted between the main column members near the column base metal fitting, enhancing the overall stability of the structure.
Career Highlights
Throughout his career, Yoshikazu Maeda has worked with prominent companies such as Kajima Corporation and Hitachi Metals, Ltd. His experience in these organizations has allowed him to apply his innovative ideas in practical settings, contributing to the advancement of engineering solutions.
Collaborations
Maeda has collaborated with notable coworkers, including Toshikazu Yamada and Toshiyuki Fukumoto. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking inventions.
Conclusion
Yoshikazu Maeda's contributions to structural engineering through his innovative patents demonstrate his dedication to improving building safety. His work continues to influence the field and inspire future advancements in engineering practices.