This inventor holds 5 USPTO granted patents. Top assignees: Kanto Denka Kogyo Co., Ltd., Hoganas Ab, Tokyo Shibaura Denki Kabushiki Kaisha. Active years: 1984-1988.
Location History:
- Maebashi, JP (1984)
- Gunma, JP (1985 - 1988)
Company Filing History:
5 out of 77 
3 out of 79 
2 out of 2,916 
Years Active: 1984-1988
Title: Kazuyoshi Oka: Innovator in Electrophotographic Development
Introduction
Kazuyoshi Oka is a notable inventor based in Gunma, Japan. He has made significant contributions to the field of electrophotographic developers, holding a total of five patents. His innovative work has advanced the technology used in printing and copying processes.
Latest Patents
Oka's latest patents include a method of making a carrier for use in electrophotographic developers. This novel carrier material is designed to work in conjunction with toner for preparing a two-component developer. The carrier consists of a spherical magnetite particulate material that features a reduced metallic iron outer layer, which is coated with an outermost resinous layer. This unique design enhances the copying properties of the carrier, making it more effective in electrophotographic processes.
Career Highlights
Throughout his career, Kazuyoshi Oka has worked with prominent companies such as Kanto Denka Kogyo Co., Ltd. and Höganäs AB. His experience in these organizations has allowed him to refine his expertise in the development of advanced materials for electrophotography.
Collaborations
Oka has collaborated with notable colleagues, including Kenkichi Hara and Mitsuhiro Katayama. These partnerships have contributed to the success of his innovative projects and patents.
Conclusion
Kazuyoshi Oka's contributions to the field of electrophotographic development demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of material science and its applications in modern technology.