Company Filing History:
Years Active: 2000
Title: Junko Tobita - Innovator in Electrophotographic Toner Technologies
Introduction
Junko Tobita is an esteemed inventor hailing from Kanagawa-ken, Japan. She has made significant contributions to the field of electrophotographic toners, showcasing her expertise and innovation as a female inventor.
Latest Patents
Junko Tobita holds a patent for a "Resin composition for electrophotographic toner." This innovative composition includes 5 to 95 parts by weight of a high molecular weight vinyl copolymer and 95 to 5 parts by weight of a low molecular weight vinyl copolymer. The high molecular weight vinyl copolymer has an impressive weight average molecular weight (Mw) ranging from 200,000 to 1,000,000. It displays a ratio (Mw/Mn) between 8 and 300, while the low molecular weight vinyl copolymer has a weight average molecular weight between 3,000 and 20,000. Notably, at least one of the polymers is derived from a unique polymerization process that enhances its performance characteristics without the need for excessive charge control agents.
Career Highlights
Junko Tobita has dedicated her career to advancing technologies that improve the quality and efficiency of electrophotographic toners. Her work at Mitsui Chemicals, Inc. has positioned her as a key player in the development of innovative resin compositions that meet the evolving demands of the industry.
Collaborations
Throughout her career, Junko has collaborated with notable colleagues, including Katsuru Matsumoto and Nobuhiro Hirayama. These collaborations have facilitated the exchange of ideas and expertise, further enhancing the innovations brought to life in the realm of toner technology.
Conclusion
In summary, Junko Tobita's contributions to the field of electrophotographic toners exemplify her brilliance as an inventor. Her patented resin composition showcases her ability to innovate and create solutions that address industry needs. As she continues to pave the way for future advancements, her legacy as a pioneering woman in technology remains firmly established.