Tokyo, Japan

Tatuo Yonezawa

This inventor holds 1 USPTO granted patent. Top assignee: Nittan Company Limited. Active years: 1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatuo Yonezawa. Retrieved from https://idiyas.com/inventor/tatuo-yonezawa

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 22(Granted Patents)


Company Filing History:


Years Active: 1985

Loading Chart...
1 patent (USPTO):Explore Patents

Title: Tatuo Yonezawa: Innovator in Smoke Detection Technology

Introduction: Tatuo Yonezawa is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of smoke detection technology. His innovative approach has led to the development of a unique smoke detector that enhances safety measures in various environments.

Latest Patents: Tatuo Yonezawa holds 1 patent for his invention of a smoke detector. This device operates by detecting smoke in a detection chamber through variations in ionization current or light beam passage. It features a reference signal generating section that produces a signal corresponding to typical smoke characteristics during a fire. Additionally, a signal comparison section ensures that the smoke sensing signal is only activated by genuine fire signals, effectively distinguishing between smoke from fires and other sources, such as insects or cigarette smoke.

Career Highlights: Yonezawa is currently associated with Nittan Company Limited, where he continues to innovate in the field of fire safety technology. His work has been instrumental in advancing smoke detection systems, making them more reliable and efficient.

Collaborations: Tatuo Yonezawa has collaborated with notable colleagues, including Tetsuo Kimura and Hayami Yuasa. Their combined expertise has contributed to the development of advanced safety technologies.

Conclusion: Tatuo Yonezawa's contributions to smoke detection technology exemplify his commitment to enhancing safety through innovation. His work continues to impact the industry positively, ensuring better protection against fire hazards.

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]
Loading…