Hino, Japan

Masumi Hosaka

This inventor holds 4 USPTO granted patents. Top assignee: Konishiroku Photo Industry Co., Ltd.. Active years: 1987-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masumi Hosaka. Retrieved from https://idiyas.com/inventor/masumi-hosaka

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 4.2

ph-index = 2

Forward Citations = 26(Granted Patents)


Location History:

  • Hachioji, JP (1987)
  • Hino, JP (1987 - 1991)

Company Filing History:


Years Active: 1987-1991

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4 patents (USPTO):Explore Patents

Title: The Innovations of Masumi Hosaka

Introduction

Masumi Hosaka is a prominent inventor based in Hino, Japan. She has made significant contributions to the field of photography through her innovative patents. With a total of 4 patents, her work has had a lasting impact on photographic materials.

Latest Patents

One of her latest patents is focused on a light-sensitive silver halide photographic material that is feasible for high-quality imaging. This invention discloses a light-sensitive silver halide photographic element, which comprises photographic layers applied under specific conditions. The surface tension of the coating solution for forming the outermost layer is required to be 6 dyn/cm or more smaller than that of the solution for the adjacent layer. Additionally, she has developed a light-sensitive silver halide photographic emulsion wherein the silver halide crystals are formed through a unique process.

Career Highlights

Masumi Hosaka has been associated with Konishiroku Photo Industry Co., Ltd., where she has been able to apply her expertise in photographic technology. Her work has not only advanced the field but has also paved the way for new innovations in photographic materials.

Collaborations

Throughout her career, Masumi has collaborated with notable colleagues, including Eiji Yoshida and Akio Suzuki. These collaborations have further enriched her work and contributed to the development of advanced photographic technologies.

Conclusion

Masumi Hosaka's contributions to the field of photography through her innovative patents highlight her role as a leading inventor. Her work continues to influence the industry and inspire future advancements in photographic materials.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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