Company Filing History:
Years Active: 1988-1993
Title: Keiko Ichinose: Innovator in Optical Information Recording
Introduction
Keiko Ichinose is a prominent inventor based in Yokohama, Japan. She has made significant contributions to the field of optical information recording, holding a total of four patents. Her work focuses on developing advanced recording mediums that enhance the efficiency and effectiveness of information storage and retrieval.
Latest Patents
Ichinose's latest patents include innovative designs for optical information recording mediums. One of her notable inventions is an optical information recording medium composed of a substrate and a recording layer. This recording layer consists of a first recording layer, an intermediate layer, and a second recording layer, which are successively overlaid on the substrate. The first recording layer contains an organic dye that has a peak of spectral reflectivity near the wavelength of light used for recording and reproduction. The intermediate layer is transparent to this light beam and contains a material with a refractive index smaller than that of the second recording layer. The second recording layer also contains an organic dye, which has a peak of spectral absorbance near the same wavelength, ensuring maximum reflectivity.
Another patent focuses on an optical information recording medium that comprises a substrate and a recording layer formed on it. This recording layer is primarily made of an organic dye component and is designed to maximize spectroscopic reflectance at the wavelength used for information recording and reproduction. The invention also includes a method and system for recording and reproducing information using this advanced recording medium.
Career Highlights
Keiko Ichinose is currently employed at Ricoh Company, Ltd., where she continues to innovate in the field of optical technologies. Her work has been instrumental in advancing the capabilities of optical information storage solutions.
Collaborations
Ichinose has collaborated with notable colleagues, including Tsutomu Satoh and Tsutomu Sato, contributing to the development of cutting-edge technologies in her field.
Conclusion
Keiko Ichinose is a trailblazer in optical information recording, with a strong portfolio of patents that reflect her innovative spirit. Her contributions continue to shape the future of information storage technology.