Yumiko Sano is a prominent inventor based in Ibaraki, Japan. She has made significant contributions to the field of photoconductive toners, holding a total of 14 patents. Her work focuses on enhancing the sensitivity and performance of toners used in various applications.

Latest Patents

Among her latest innovations is a black photoconductive toner that exhibits sensitivity to light in the wavelength range of semiconductor lasers. This toner comprises a resinous binder, photoconductive material, a sensitizer, and a perylene black pigment or dyes in yellow, magenta, or cyan. Another notable patent involves a photoconductive toner that includes a resin binder, zinc oxide, and a sensitizer dye. This toner meets the requirements for both sensitivity and coloration, demonstrating high photosensitivity in the laser wavelength region compared to conventional toners.

Career Highlights

Yumiko Sano has established herself as a key figure in her field through her innovative work at Mita Industrial Co., Ltd. Her research and development efforts have led to advancements that significantly improve the functionality of photoconductive toners.

Collaborations

Throughout her career, Yumiko has collaborated with notable colleagues, including Nobuhiro Miyakawa and Masatomi Funato. These partnerships have fostered a collaborative environment that enhances the innovation process.

Conclusion

Yumiko Sano's contributions to photoconductive toner technology exemplify her dedication to innovation and excellence. Her patents reflect a commitment to advancing the capabilities of toners, making her a significant figure in the industry.

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