Location History:
- Ohmiya, JP (1984)
- Omiya, JP (1980 - 1989)
Company Filing History:
Years Active: 1980-1989
Title: Toshio Kumakura: Innovator in Electrophotographic Technology
Introduction: Toshio Kumakura is a prominent inventor based in Omiya, Japan, known for his significant contributions to electrophotographic technologies. With a total of four patents to his name, Kumakura continues to push the boundaries of innovation within his field.
Latest Patents: Among his latest patents is the Electrophotographic Reversal Development Method Using Magnetic Field. This invention encompasses a process that begins with creating a latent electrostatic image on an image-carrying member. It employs a developer consisting of magnetic toner, which is attracted to the non-image areas of the latent electrostatic image through careful manipulation of magnetic fields and voltage. The innovation promises high-quality images with superior optical density and resolution while minimizing toner dust adhesion.
Another notable patent is the Preparation Method of Magnetic Toner, which details a method for producing single-component toner compositions used in electrophotographic image development. Kumakura's method involves mixing a binding component with magnetic particles, followed by a pulverization step and the addition of carbon black. The resulting compositions maintain a resistivity that is optimal for effective imaging performance.
Career Highlights: Kumakura has made a substantial impact while working at Hitachi Metals, Ltd., where he has honed his expertise in the development of advanced photographic technologies. His inventive spirit has driven the research and creation of new methods that enhance the efficacy and quality of electrophotographic imaging.
Collaborations: Throughout his career, Kumakura has collaborated with notable coworkers such as Keitaro Yamashita and Koji Noguchi. Together, they have contributed to the development of innovative technologies that serve various industries demanding high-quality imaging solutions.
Conclusion: Toshio Kumakura stands out as a leading figure in electrophotography, with his groundbreaking patents reflecting a commitment to advancing technology. His work not only demonstrates technical ingenuity but also highlights the importance of collaboration in fostering innovation within the field.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.