Location History:
- Minami-ashigara, JA (1976)
- Minami-ashigara, JP (1979)
- Kanagawa, JP (1983)
Company Filing History:
Years Active: 1976-1983
Title: Innovations of Yoshisato Minagawa
Introduction
Yoshisato Minagawa is a notable inventor based in Minami-ashigara, Japan. He has made significant contributions to the field of photographic materials, holding a total of 3 patents. His work focuses on enhancing the quality and performance of color reversal light-sensitive materials.
Latest Patents
One of his latest patents is a multilayer color reversal light-sensitive material. This invention provides dye images with improved sharpness and graininess while maintaining color reproducibility. The design features a specific arrangement of emulsion layers, including a support, a yellow filter layer, and groups of green-sensitive and red-sensitive emulsion layers. The arrangement ensures that the emulsion layer groups are positioned closer to the support than the yellow filter layer, optimizing the photographic quality.
Another significant patent involves multilayer color photographic materials. This invention comprises a support coated with a red-sensitive silver halide emulsion layer and a green-sensitive silver halide emulsion layer. It includes an optional yellow filter layer and a blue-sensitive silver halide emulsion layer. The introduction of a non-sensitive auxiliary layer containing a non-diffusible colored coupling compound enhances the masking of cyan dye images without compromising the sensitivity of the red-sensitive silver halide emulsion layer.
Career Highlights
Yoshisato Minagawa is associated with Fuji Photo Film Company, Limited, where he has contributed to advancements in photographic technology. His innovative work has played a crucial role in improving the quality of photographic materials used in various applications.
Collaborations
He has collaborated with notable coworkers, including Kazunori Hasebe and Naoki Arai. Their combined efforts have led to significant advancements in the field of photography.
Conclusion
Yoshisato Minagawa's contributions to the field of photographic materials through his innovative patents have significantly impacted the industry. His work continues to influence the development of high-quality photographic technologies.