This inventor holds 1 USPTO granted patent. Top assignee: Konishiroku Photo Industry Co., Ltd.. Active years: 1976.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1976
Title: Keiji Kasai and His Photographic Development Invention.
Introduction
Keiji Kasai is an inventor associated with Hino, Japan. His recorded patent concerns a process for developing light-sensitive silver halide photographic material.
Latest Patents
Kasai is credited with 1 patent: “Process for Developing a Light-Sensitive Silver Halide Photographic Material.” The process uses a development inhibitor-releasing compound that liberates a substance with development-inhibiting action while simultaneously producing a colorless compound.
Career Highlights
Kasai’s listed company affiliation is Konishiroku Photo Industry Co., Ltd. His patent reflects work on chemical methods for controlling photographic development.
Collaborations
Seiji Muramoto and Kenji Itoh are identified as Kasai’s coworkers.
Conclusion
Keiji Kasai’s recorded contribution is a photographic development process designed to combine inhibition of development with the formation of a colorless compound.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile