This inventor holds 3 USPTO granted patents. Top assignees: Canon Kabushiki Kaisha, Tokyo Shibaura Electric Co., Ltd.. Active years: 1976-1981.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Kanagawa, JA (1976)
- Kawasaki, JP (1979 - 1981)
Company Filing History:


Years Active: 1976-1981
Title: The Innovations of Sadao Yamada
Introduction
Sadao Yamada is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of exposure computation circuits, holding a total of 3 patents. His work has had a lasting impact on the technology used in photography and imaging systems.
Latest Patents
One of Yamada's latest patents is an exposure computation circuit. This invention relates to a circuit that performs computations with values inversely proportional to all exposure factors, excluding the diaphragm value of the APEX system. The goal is to obtain computation results that are proportional to the actual shutter time or diaphragm value, thereby allowing for precise control of exposure based on these results. This innovative approach enhances the accuracy and efficiency of exposure settings in imaging devices.
Career Highlights
Throughout his career, Sadao Yamada has worked with prominent companies such as Canon and Tokyo Shibaura Electric Co., Ltd. His experience in these organizations has allowed him to develop and refine his inventions, contributing to advancements in imaging technology.
Collaborations
Yamada has collaborated with notable colleagues, including Tadashi Ito and Soichi Nakamoto. These partnerships have fostered a creative environment that has led to the development of innovative solutions in the field.
Conclusion
Sadao Yamada's contributions to exposure computation circuits exemplify the spirit of innovation in technology. His patents and collaborations have significantly influenced the industry, showcasing the importance of inventive minds in advancing technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile