Location History:
- Kanagawa, JP (2002 - 2004)
- Yokohama, JP (2004)
Company Filing History:
Years Active: 2002-2004
Title: Keijiro Yamaguchi: Innovator in Material Engineering
Introduction
Keijiro Yamaguchi is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of material engineering, particularly in the development of innovative components for mechanical applications. With a total of 3 patents to his name, Yamaguchi continues to push the boundaries of technology.
Latest Patents
Yamaguchi's latest patents showcase his expertise in creating advanced materials. One of his notable inventions is a retainer made from brass, which incorporates a material containing manganese (Mn) and silicon (Si). This innovative design allows for a metallic structure in the cross-section of the ring material, where an intermetallic compound of Mn and Si is uniformly and finely scattered. This results in a retainer that boasts excellent sizing precision and sound affect resistance.
Another significant patent is for a cage designed for roller bearings. This cage is constructed from low carbon steel and is intended for use in rolling bearings that consist of an outer ring, an inner ring, and multiple rolling elements. The cage features several pockets that retain the rolling elements in an equi-distribution during rotation. The low carbon steel used contains between 0.02% to 0.10% by weight of carbon and 0.10% to 0.45% by weight of manganese, and it undergoes plastic working to enhance its properties.
Career Highlights
Yamaguchi is currently employed at NSK Corporation, a leading company in the field of bearings and precision machinery. His work at NSK has allowed him to apply his innovative ideas and contribute to the development of high-quality mechanical components. His patents reflect his commitment to improving the performance and reliability of engineering materials.
Collaborations
Throughout his career, Yamaguchi has collaborated with talented individuals such as Manabu Ohori and Takashi Murai. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.
Conclusion
Keijiro Yamaguchi is a distinguished inventor whose work in material engineering has led to significant advancements in mechanical components. His innovative patents and collaborations highlight his dedication to enhancing technology and engineering practices.