Company Filing History:
Years Active: 1988-1992
Title: **Inventor Spotlight: Sachiko Yasuda**
Introduction
Sachiko Yasuda is a renowned inventor based in Tokyo, Japan, known for her contributions to the field of electrostatic image development. With a total of four patents to her name, she has significantly advanced technologies related to photographic printing and imaging processes.
Latest Patents
Among her latest innovations are two notable patents that focus on methods for developing electrostatic latent images on the surface of photosensitive drums. The first patent describes a method utilizing a one-component developer with specific particle size characteristics. The developer features an average particle diameter of 7-15 micrometers, with a maximum of 25% for particles up to 5 micrometers in diameter, and no more than 5% for particles of 20 micrometers or larger. This innovation ensures that the developer particles can be sufficiently triboelectrically charged to prevent fogging and to achieve high-quality images.
Her second patent elaborates on another method using a one-component developer, characterized by a triboelectric charge within the range of approximately 30-100 microcoulombs per square meter and a true specific gravity of at least 1.2. This developer is designed to move effectively to the electrostatic latent images, consistently producing developed images of optimal quality while preventing any fogging.
Career Highlights
Sachiko Yasuda is currently employed at Kabushiki Kaisha Toshiba, where her expertise and inventive skills contribute to the company’s advancements in imaging technologies. Her work at Toshiba underscores her commitment to innovation and quality in the field.
Collaborations
Throughout her career, Yasuda has worked alongside notable colleagues, including Hideo Mukai and Shinya Tomura. These collaborations have allowed her to exchange ideas and further enhance the technological contributions she has made to the industry.
Conclusion
Sachiko Yasuda’s inventions and ongoing work demonstrate her vital role in evolving electrostatic image development technologies. Through her patents, she has made significant strides in improving the quality of developed images and enhancing electronic imaging processes. Her achievements serve as an inspiration to aspiring inventors within the field.