This inventor holds 5 USPTO granted patents and 1 EPO patent. Top assignees: Fujifilm Corporation, Fuji Photo Film Company, Limited. Active years: 2005-2012.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Minami-ashigara, JP (2005 - 2009)
- Kanagawa, JP (2005 - 2012)
Company Filing History:
3 out of 16,949 
2 out of 16,458 
Years Active: 2005-2012
Title: Kouichi Yokota: Innovator in Silver Halide Photographic Materials
Introduction
Kouichi Yokota is a prominent inventor based in Minamiashigara, Japan. He has made significant contributions to the field of photography, particularly in the development of silver halide photosensitive materials. With a total of 5 patents to his name, Yokota's work has had a lasting impact on photographic technology.
Latest Patents
Yokota's latest patents include innovative advancements in silver halide photographic materials. One notable patent is for a silver halide photosensitive material and process for producing black and white images. This invention features a support with at least one silver halide photosensitive layer, where the average equivalent sphere diameter of the silver halide is 0.30 µm or less. The layer includes four or more types of silver halide grains with different average diameters, and the thickness between the support and the silver halide layer is 10 µm or less. Another significant patent involves a silver halide photographic material that includes a transparent support with blue-sensitive, green-sensitive, and red-sensitive silver halide emulsion layers. Each layer has an average equivalent-sphere diameter of the silver halide grains of 0.35 µm or less, enhancing the quality of photographic images.
Career Highlights
Throughout his career, Kouichi Yokota has worked with notable companies in the photography industry, including Fujifilm Corporation and Fuji Photo Film Company, Limited. His expertise in silver halide technology has positioned him as a key figure in the development of advanced photographic materials.
Collaborations
Yokota has collaborated with esteemed colleagues such as Yoichi Hosoya and Junichiro Hosokawa. These partnerships have contributed to the innovation and refinement of photographic technologies.
Conclusion
Kouichi Yokota's contributions to the field of photography through his patents and collaborations have significantly advanced the technology of silver halide materials. His work continues to influence the industry and inspire future innovations.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile