Company Filing History:
Years Active: 1989-1990
Title: Innovations of Yuji Hayashi
Introduction
Yuji Hayashi is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of electrophotographic technology. With a total of 2 patents, his work has had a considerable impact on the industry.
Latest Patents
One of his latest patents is a developing device with a retractable cutoff member. This device includes a rotatable developing sleeve that confronts an electrostatic latent image support member. It features a supply device for delivering developer to the peripheral surface of the developing sleeve, along with a bristle height regulating member. Additionally, it has a mechanism for removing developer from the sleeve after passing through the developing region. The cutoff device is designed to cut off the supply of developer from the supply device to the developing sleeve, which is retractably projected into a developer supply region. A magnet member is also fixedly provided in the developing sleeve, featuring a developing magnetic pole that confronts the support member, ensuring that the developer remains in an erect state on the sleeve.
Another significant patent is a density measuring device for originals in an enlarging/reducing projector. This device is installed in an electrophotographic copying machine or an image sensor to measure original densities for enlarged or reduced printing under automatic exposure control. It includes a light sensor that receives light from an original via mirrors and moves to maintain a constant distance between the sensor and the original as the mirrors adjust in response to changes in projective magnification. The optical path length for original density measurement is corrected by moving the sensor in accordance with the projection lens.
Career Highlights
Yuji Hayashi is currently employed at Minolta Camera Kabushiki Kaisha, where he continues to innovate in the field of imaging technology. His work has been instrumental in advancing the capabilities of electrophotographic devices.
Collaborations
He has collaborated with notable coworkers such as Susumu Sakakibara and Katsumi Maeda, contributing to various projects and innovations within the company.
Conclusion
Yuji Hayashi's contributions to the field of electrophotography through his patents and work at Minolta Camera Kabushiki Kaisha highlight his importance as an inventor. His innovative devices continue to shape the future of imaging technology.