Company Filing History:
Years Active: 1978
Title: Yutaka Hirabayashi: Innovator in Photographic Methods
Introduction
Yutaka Hirabayashi is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of photographic methods, particularly in the development of lithographic photographic materials. His innovative approach has led to the creation of a unique patent that enhances the quality and efficiency of photographic processes.
Latest Patents
Hirabayashi holds a patent for a "Photographic method of making relief member with negative dye image." This invention involves a lithographic photographic material that features a photosensitive layer made of gelatin with an isoelectric point of at least 7. The layer also includes a condensation product formed between a diazonium salt of a para-aminodiphenylamine derivative and an aldehyde. The photosensitive layer can be photoinsolubilized, allowing for the formation of a photo-relief. The method utilizes partial photoinsolubilization followed by immersion in an acid or direct dye bath, resulting in level dying. After washing with water, unexposed areas are removed, creating an image composed of the dye photoinsolubilized resin layer corresponding to the exposed areas. Hirabayashi has 1 patent to his name.
Career Highlights
Hirabayashi is associated with Somar Manufacturing Co., Ltd., where he has been instrumental in advancing photographic technologies. His work has not only contributed to the company's portfolio but has also influenced the broader field of photography and lithography.
Collaborations
Hirabayashi has collaborated with Masahiro Nomura, a fellow innovator in the industry. Their partnership has fostered the exchange of ideas and techniques, further enhancing their contributions to photographic methods.
Conclusion
Yutaka Hirabayashi's innovative work in photographic methods exemplifies the spirit of invention and creativity. His patent has paved the way for advancements in lithographic materials, showcasing the importance of innovation in the field of photography.