Location History:
- Suntou-gun, JP (2020 - 2022)
- Shizuoka, JP (2021 - 2022)
Company Filing History:
Years Active: 2020-2025
Title: Mariko Yamashita: Innovator in Toner Technology
Introduction
Mariko Yamashita is a prominent inventor based in Suntou-gun, Japan. She has made significant contributions to the field of toner technology, holding a total of 10 patents. Her work has been instrumental in advancing the efficiency and effectiveness of toner manufacturing processes.
Latest Patents
One of her latest patents is focused on a toner and method for manufacturing toner. This invention involves a toner particle that comprises a resin A and a resin B. The resin A has a specific structure represented by a predetermined general formula, while the resin B includes a monomer unit represented by another predetermined general formula. The manufacturing method includes dispersing a toner base particle in an aqueous medium to create a toner slurry, followed by the addition of a radical polymerization initiator and a monomer composition to form resin A on the surface of the toner base particle.
Another notable patent is for an image forming apparatus and process cartridge. This invention features an electrophotographic photosensitive member and a developing device that supplies toner onto the member. The developing device contains toner particles, which have a core made of a binder resin and wax, along with a shell layer formed on the core's surface. The binder resin has a prescribed structure, and the wax includes a specific monoester compound.
Career Highlights
Mariko Yamashita is currently employed at Canon Kabushiki Kaisha, where she continues to innovate in the field of toner technology. Her work has not only enhanced the quality of toner products but has also contributed to the overall efficiency of printing technologies.
Collaborations
Throughout her career, Mariko has collaborated with notable colleagues, including Ryo Nagata and Tetsuya Kinumatsu. These collaborations have further enriched her research and development efforts in toner technology.
Conclusion
Mariko Yamashita is a trailblazer in the field of toner technology, with a remarkable portfolio of patents that reflect her innovative spirit. Her contributions continue to shape the future of printing technology, making her a significant figure in her industry.