Sigenobu Katagiri

Title: **Sigenobu Katagiri: Innovator in Printing Technology**

Introduction

Sigenobu Katagiri is a notable inventor hailing from Ibaraki, Japan. He has made significant contributions to the field of printing technology, particularly in the mechanism of sheet conveyance. With one patent to his name, Katagiri's invention addresses a fundamental issue in printing processes.

Latest Patents

Sigenobu Katagiri holds a patent for a "Sheet Meandering Movement Preventing Method." This innovative method is utilized in a printing sheet conveying device, where a sheet bearing a toner image is passed through both a heating roll and a pressure roll. The invention features a mechanism that allows for the adjustment of the right and left contact pressures of these rolls to rectify the meandering movement of the sheet, especially during the initial stages of conveyance. Initially, the contact pressure on one side of the rolls is set higher than the other. After a predetermined time period, the pressures on both sides are equalized, ensuring a smooth and accurate printing process.

Career Highlights

Sigenobu Katagiri is associated with Hitachi Koki Co., Ltd., where he has played a vital role in advancing printing technologies. His innovative approach has contributed to the efficiency and reliability of printing machinery used in various applications.

Collaborations

Throughout his career, Katagiri has collaborated with esteemed colleagues, including Shigeo Nemoto and Osamu Namikawa. These partnerships have fostered a productive environment for innovation, leading to improved technology in the printing industry.

Conclusion

Sigenobu Katagiri's contributions to printing technology underscore the importance of innovation in mechanical engineering. His patent addressing sheet meandering movement represents a crucial improvement in the printing process, showcasing his expertise and commitment to enhancing performance in this field.