Company Filing History:
Years Active: 1979-1981
Title: Tateshi Iytaka: Innovator in Photographic Materials
Introduction
Tateshi Iytaka is a notable inventor based in Hino, Japan. He has made significant contributions to the field of photographic materials, holding a total of three patents. His work focuses on enhancing the quality and efficiency of light-sensitive silver halide photographic materials.
Latest Patents
Iytaka's latest patents include a method of processing light-sensitive silver halide photographic materials. This innovative method involves a light-sensitive silver halide photographic material that contains a tetrazolium compound. The material is treated with a developing solution that does not include hydroquinone as a developing agent. The silver halide emulsion layer is coated on a support and contains silver halide grains with an average grain size ranging from 0.05 to 1.5 micrometers. Notably, at least 75% of these grains fall within a range of 0.6 to 1.4 times the average grain size, along with a sensitizing dye. Another patent focuses on light-sensitive silver halide photographic materials that comprise a support and a hydrophilic colloidal layer. This layer contains a silver halide emulsion layer and tetrazolium compounds, with the emulsion layer featuring a combination of two specific sensitizing dyes.
Career Highlights
Iytaka has been associated with Konishiroku Photo Industry Co., Ltd., where he has contributed to the development of advanced photographic technologies. His expertise in the field has led to innovative solutions that enhance the performance of photographic materials.
Collaborations
Iytaka has worked alongside notable colleagues such as Syunji Matsuo and Toshio Nagatani. Their collaborative efforts have further advanced the research and development of photographic technologies.
Conclusion
Tateshi Iytaka's contributions to the field of photographic materials through his patents and collaborations highlight his innovative spirit and dedication to advancing technology. His work continues to influence the industry and improve photographic processes.