This inventor holds 23 USPTO granted patents and 1 EPO patent, primarily in Electrophotography Development. Top assignees: Powdertech Co., Ltd., Mitsui Minings & Melting Co., Ltd., Minolta Camera Kabushiki Kaisha. Active years: 1985-2009.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- 28 Renpei-machi, Kumamoto-shi, Kumamoto, JP (1985)
- Chiba-ken, JP (1999 - 2001)
- Chiba, JP (2002 - 2007)
- Kashiwa, JP (1993 - 2009)
Company Filing History:
21 out of 94 
2 out of 817 
1 out of 2,979 Years Active: 1985-2009
Areas of Expertise:
Title: Innovations by Yuji Sato in Electrophotography
Introduction
Yuji Sato, a prominent inventor based in Kashiwa, Japan, has made significant contributions in the field of electrophotography. With a remarkable portfolio of 23 patents, he has developed innovative materials and methods that enhance the efficiency and quality of image formation.
Latest Patents
Among his latest inventions, Sato has patented a carrier core material and a coated carrier designed for electrophotography. His carrier core material comprises a unique combination of metal oxides, featuring one with a melting point not exceeding 1000°C and another not below 1800°C. This composition ensures a high electrical resistivity of at least 10Ω·cm. Additionally, he has created a two-component developing agent that consists of this coated carrier and toner particles, enabling effective development of electrostatic latent images on photosensitive members using alternating electric fields. Notably, his materials exhibit strong magnetization, minimizing electric charge leakage across various electric fields, thus allowing the formation of excellent images.
Career Highlights
Sato's career has included significant tenures at Powdertech Co., Ltd., where he has explored the potentials of resin carriers and their applications in electrophotographic developers. His innovative approach to combining silicone resins with magnetic powders has revolutionized the way developing agents are formulated, leading to improved image quality and consistency.
Collaborations
Throughout his career, Yuji Sato has collaborated with notable professionals such as Hiromichi Kobayashi and Toshio Honjo. Their joint efforts in research and development have contributed to the advancement of technology in electrophotography, reflecting a strong sense of teamwork and shared vision in the pursuit of innovation.
Conclusion
Yuji Sato stands out as a leading figure in the innovation of electrophotographic materials and methods. His extensive patent portfolio and collaborations with esteemed colleagues highlight his dedication to advancing technology in imaging and printing solutions. As the industry continues to evolve, Sato’s contributions will undoubtedly play a critical role in shaping the future of electrophotography.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile