Location History:
- Kashiwara, JP (2002)
- Osaka, JP (1988 - 2011)
Company Filing History:
6 out of 772 
2 out of 5 
1 out of 306 
Years Active: 1988-2011
Title: Kazuo Rokkaku: Innovator in Power Transmission Technologies
Kazuo Rokkaku is a distinguished inventor based in Osaka, Japan, known for his contributions to the field of power transmission technologies. With a portfolio of eight patents, Rokkaku has made significant advancements that enhance efficiency and durability in various mechanical systems.
Latest Patents
Among his latest patents, Rokkaku has developed two noteworthy inventions. The first is a "Method of manufacturing power transmission chain and pretension load device used in manufacture of power transmission chain." This innovative method involves laminating multiple sheets of link plates and loading tension via a pair of pins inserted through the through-holes of the plates. This process applies a predetermined compressive residual stress on the link plates, allowing for robust assembly of a chain in an endless shape.
The second patent, the "Toroidal type continuously variable transmission," features a design that utilizes discs made from heat-resisting bearing steel and rollers crafted from ceramics. The specific composition of the heat-resisting bearing steel includes 0.8-1.5 wt % of carbon, ensuring optimal performance under high loads and rotational speeds. This eliminates issues such as sticking between discs and rollers, ensuring longevity and reliability in operation.
Career Highlights
Rokkaku's career has seen him contribute to significant technological advancements while working with respected companies, including Koyo Seiko Company, Ltd. and Showa Tool Co., Ltd. His work has not only benefited these organizations but has also advanced the overall industry standard for power transmission solutions.
Collaborations
Throughout his career, Kazuo Rokkaku has collaborated with accomplished professionals in the field, including Hiroaki Takebayashi and Kouichi Ueda. These collaborations have undoubtedly fostered a creative environment that has led to successful innovations and advancements in their respective projects.
Conclusion
Kazuo Rokkaku stands as a notable figure in the realm of power transmission technologies. His innovative methods and designs continue to push the boundaries of engineering, ensuring that his work remains vital to the advancement of this critical field. With his continued dedication to innovation, Rokkaku's contributions will likely resonate within the industry for years to come.