Location History:
- Osaka, JP (1995)
- Ibaraki, JP (1994 - 1998)
Company Filing History:
6 out of 2,816 
2 out of 2,979 
1 out of 2 Years Active: 1994-1998
Title: Keiko Nagayasu: Innovator in Image Forming Technology
Introduction
Keiko Nagayasu is a prominent inventor based in Ibaraki, Japan, known for her significant contributions to image forming technology. With a total of eight patents to her name, she has made remarkable advancements in the field of electrophotography.
Latest Patents
One of her latest patents is an image forming apparatus that features an insulated member positioned adjacent to a photosensitive member. This apparatus utilizes a scanner that exposes an image on the photosensitive member in a direction perpendicular to the movement of the insulated member. Voltage is applied between the photosensitive member and the insulated member to provide a charge on the insulated member surface, corresponding to the optical exposure image. The exposure position is adjusted in the direction of movement of the image-bearing member for each scan. Another notable patent involves a charging device and an image forming apparatus designed to minimize image noise by effectively suppressing the generation of image memory due to untransferred residual developer. This charging device includes a charging brush made of a roller and a strip-like fiber member with multiple piles wound around it, adhering to specific conditions for optimal performance.
Career Highlights
Throughout her career, Keiko has worked with notable companies such as Minolta Company, Ltd. and Minolta Camera Kabushiki Kaisha. Her work has significantly impacted the development of imaging technologies, enhancing the quality and efficiency of image formation processes.
Collaborations
Keiko has collaborated with esteemed colleagues, including Akihito Ikegawa and Masashi Yamamoto, contributing to various innovative projects in the imaging sector.
Conclusion
Keiko Nagayasu's contributions to image forming technology through her patents and collaborations highlight her role as a leading inventor in her field. Her work continues to influence advancements in imaging systems, showcasing her dedication to innovation.