Location History:
- Uenohara, JP (1988)
- Tokyo, JP (1991 - 1995)
- Hino, JP (1984 - 1998)
Company Filing History:
5 out of 3,106 
4 out of 1,252 
1 out of 16 Years Active: 1984-1998
Title: The Innovations of Yoshihiro Haga
Introduction
Yoshihiro Haga is a notable inventor based in Hino, Japan. He has made significant contributions to the field of photography through his innovative patents. With a total of 10 patents to his name, Haga has played a crucial role in advancing photographic technology.
Latest Patents
One of Haga's latest patents is for a silver halide light-sensitive photographic material. This invention includes a hydrophilic colloid layer containing dextran or a specific compound formula, along with a subbing layer that contains metal oxide. Another significant patent is for a silver halide photographic emulsion, which features silver halide grains with an average iodide content of less than 3 mol %. These grains are characterized by their monodispersed core/shell structure, which enhances their performance in photographic applications.
Career Highlights
Throughout his career, Haga has worked with prominent companies in the photography industry, including Konica Corporation and Konishiroku Photo Industry Co., Ltd. His work has been instrumental in developing advanced photographic materials and emulsions that have improved image quality and processing efficiency.
Collaborations
Haga has collaborated with several talented individuals in his field, including Takeo Koitabashi and Syoji Matsuzaka. These collaborations have contributed to the innovative advancements in photographic technology.
Conclusion
Yoshihiro Haga's contributions to the field of photography through his patents and collaborations have significantly impacted the industry. His innovative spirit continues to inspire advancements in photographic materials and techniques.