Location History:
- Yokohama, JA (1977)
- Yokohama, JP (1980 - 1983)
Company Filing History:
Years Active: 1977-1983
Title: The Innovations of Tadashi Yamashita
Introduction
Tadashi Yamashita is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of electrostatic copying technology. With a total of 3 patents to his name, his work has had a lasting impact on the industry.
Latest Patents
One of his latest patents is an "Apparatus for cleaning photosensitive member of electrostatic copying." This invention includes neutralizing means that are electrically connected to the ground and designed to contact the surface of a photosensitive member. This occurs in a region located between the transfer station, where a toner image is transferred onto a transfer sheet, and the cleaning station, where any residual toner is removed. This innovative approach ensures that the photosensitive member is neutralized after the transfer step before the residual toner is eliminated.
Another significant patent is the "Cleaning means for image transfer unit in electrophotographic copying." This invention features an image transfer unit equipped with cleaning means for use in an electrophotographic copying machine. It comprises an electrically conductive transfer roller in contact with a photosensitive member and a rotatable cleaning means that also has electrical bias means with switchable polarity. This design allows for efficient toner transfer and cleaning, enhancing the overall performance of the copying machine.
Career Highlights
Tadashi Yamashita is currently employed at Ricoh Company, Ltd., where he continues to innovate in the field of electrostatic copying technology. His work has been instrumental in advancing the efficiency and effectiveness of copying machines.
Collaborations
He has collaborated with notable coworkers such as Minoru Umahashi and Hideo Yamazaki, contributing to various projects and innovations within the company.
Conclusion
Tadashi Yamashita's contributions to electrostatic copying technology through his patents and work at Ricoh Company, Ltd. highlight his importance as an inventor in this field. His innovative solutions continue to shape the future of copying technology.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.