Location History:
- Yokohama, JP (1988 - 1990)
- Kanagawa, JP (1993)
Company Filing History:
2 out of 499 
1 out of 614 
Years Active: 1988-1993
Title: Yasuo Kamoshita: Innovator in Electrophotographic Toners
Introduction
Yasuo Kamoshita is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of electrophotography, particularly in the development of advanced toners. With a total of 3 patents to his name, Kamoshita's work has had a lasting impact on the industry.
Latest Patents
Kamoshita's latest patents include innovative formulations for electrophotographic toners. One of his key inventions is an electrophotographic yellow toner that comprises binder resins with acetoacetanilide type monoazo pigments dispersed in its amorphous phase. This toner is recognized for its excellent transparency and spectral reflection characteristics. The production process involves subjecting a colorant containing these pigments and binder resins to heat treatment at a temperature significantly higher than the softening point of the binder resin. Another notable patent is for a magnetic toner for electrophotography, which includes a magnetic powder, a negative charge control agent, a binder resin, and a compound featuring a phenazine ring. This magnetic toner effectively prevents picture image blurring under high humidity conditions when used with an amorphous-silicon photoreceptor.
Career Highlights
Throughout his career, Yasuo Kamoshita has worked with prominent companies such as Mitsubishi Kasei Corporation and Mitsubishi Chemical Industries Limited. His experience in these organizations has allowed him to refine his expertise in toner technology and contribute to various advancements in the field.
Collaborations
Kamoshita has collaborated with several talented individuals in his field, including Toshihiko Yoshitomi and Hiromi Horiuchi. These collaborations have fostered innovation and have been instrumental in the development of new technologies.
Conclusion
Yasuo Kamoshita's contributions to electrophotographic toners demonstrate his commitment to innovation and excellence in the field. His patents reflect a deep understanding of material science and a dedication to improving the performance of toners in various applications.