Yoshihiko Bessho

Title: Innovations by Yoshihiko Bessho

Introduction

Yoshihiko Bessho is a notable inventor based in Shiga, Japan. He has made significant contributions to the field of electrophotographic technology, holding a total of 4 patents. His work focuses on improving the efficiency and quality of copying machines.

Latest Patents

One of his latest patents is a toner development device with an improved scraper. This invention aims to achieve a reproduced image without uneven thickness by stirring developers composed of toner and carrier. It feeds the developers mixed uniformly in the longitudinal direction along a photosensitive drum. The electrostatic latent image produced on the photosensitive drum becomes visible when it contacts the developers retained in a brushlike state by the magnetic force of a magnet roller. The primary scraper of a scraping means, which contacts slidingly with the magnet roller, scrapes off the developers, of which a part of the toner is spent. A secondary scraper is fixed to adjust its position forwards and rearwards to distribute the toner uniformly in the toner development device. The developers scraped off can be returned more to somewhat insufficient portions and less to somewhat excessive portions in a stirring means composed of a plurality of screw rollers.

Another significant patent is a cooling device for a light source in a copying machine. This device effectively cools a lamp body for lighting an original, preventing the generation of air seemingly waving due to heat. Light-pervious heat-shield members are disposed at suitable intervals in the irradiation opening of the lamp body, enabling ambient air to blow past and between these members. The member positioned at the side of the light source bulb is composed of heat-ray absorption glass. Airflow is guided through the chamber accommodating the light source bulb to perform forced air cooling inside the lamp body, thus preventing air waving due to heat from the lamp.

Career Highlights

Yoshihiko Bessho works at Dainippon Screen Mfg. Co., Ltd., where he has been instrumental in developing innovative technologies for copying machines. His expertise in electrophotographic systems has led to advancements that enhance the performance and reliability of these devices.

Collaborations

He has collaborated with notable coworkers, including Yoshio Miyauchi and Masao Fukushima, contributing to various projects that push the boundaries of technology in their field.

Conclusion

Yoshihiko Bessho's contributions to the