Location History:
- Kusatsu, JP (1979)
- Moriyama, JP (1983 - 1985)
Company Filing History:
Years Active: 1979-1985
Title: Kei Takahata: Innovator in Electrophotographic Technology
Introduction
Kei Takahata is a notable inventor based in Kusatsu, Japan. He has made significant contributions to the field of electrophotography, holding a total of 4 patents. His work focuses on enhancing the quality and efficiency of color image reproduction through innovative processes.
Latest Patents
Takahata's latest patents include a multicolor electrophotographic process utilizing titanium dioxide. This process involves a multi-step reproduction of color images by employing an electrophotographic photosensitive material. The method begins with exposure to an optical image, followed by positive corona charging to create a positive electrostatic latent image. Additionally, negative corona charging and/or AC corona charging are performed prior to exposure, effectively utilizing the photomemory effect of titanium dioxide. This results in the production of multi-color images with good contrast and stability. Another significant patent involves a dye-sensitized titanium dioxide electrophotographic photosensitive material. This innovation improves photosensitivity and whiteness by incorporating a specific cyanine dye compound into the photosensitive layer.
Career Highlights
Kei Takahata is currently associated with Ishihara Sangyo Kaisha, Ltd., where he continues to develop and refine his innovative technologies. His work has been instrumental in advancing the capabilities of electrophotographic processes, making them more efficient and effective.
Collaborations
Takahata has collaborated with notable coworkers such as Sadao Murasawa and Shigeru Kishino. Their combined expertise has contributed to the success of various projects and patents in the field.
Conclusion
Kei Takahata's contributions to electrophotography demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of materials and processes that enhance image reproduction technology. His work continues to influence the industry and inspire future advancements.