Company Filing History:
Years Active: 1986-1987
Title: Ryoichi Nagumo: Innovator in Plotter Technology
Introduction
Ryoichi Nagumo is a notable inventor based in Katsuta, Japan. He has made significant contributions to the field of plotter technology, holding a total of 2 patents. His innovative designs have improved the functionality and efficiency of X-Y plotters.
Latest Patents
Nagumo's latest patents include a unique X-Y plotter drive roller arrangement. This invention features a design that allows for the movement of recording paper without perforation, utilizing drive rollers and pinch rollers. The outer surface of each drive roller is equipped with sharp projections, enabling precise paper feeding without slippage. These projections are created by cutting V-grooves into the outer surface of the drive rollers, both parallel and orthogonal to the shaft.
Another significant patent is the pen changing apparatus for plotters. This invention allows for multiple pens to be mounted on a carriage, aligned with the axial direction of a shaft. A sliding lever, which is movable and rotatable, presses down on the desired pen, while a solenoid facilitates the pen's movement in conjunction with a pen lifting spring. Leaf springs help position the sliding lever over the selected pen, ensuring accurate pen changes during operation.
Career Highlights
Ryoichi Nagumo is currently employed at Hitachi, Ltd., where he continues to develop innovative solutions in the field of plotter technology. His work has contributed to advancements that enhance the performance and reliability of plotting devices.
Collaborations
Throughout his career, Nagumo has collaborated with esteemed colleagues such as Masami Sakamoto and Tamio Ishihara. Their combined expertise has fostered a creative environment that encourages innovation and the development of cutting-edge technologies.
Conclusion
Ryoichi Nagumo's contributions to plotter technology through his patents and collaborative efforts highlight his role as a key innovator in the field. His work continues to influence the design and functionality of plotting devices, showcasing the importance of innovation in technology.