Yokohama, Japan

Keizo Tatsunami

This inventor holds 2 USPTO granted patents. Top assignees: Bridgestone Corporation, Bridgestone Tire Company Limited, Kajima Corporation. Active years: 1979-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keizo Tatsunami. Retrieved from https://idiyas.com/inventor/keizo-tatsunami

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 = 4.0

ph-index = 2

Forward Citations = 22(Granted Patents)


Company Filing History:


Years Active: 1979-1994

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2 patents (USPTO):Explore Patents

Title: Keizo Tatsunami: Innovator in Anti-Earthquake Technology and Fluid Transport Solutions

Introduction

Keizo Tatsunami is a notable inventor based in Yokohama, Japan. He has made significant contributions to the fields of structural engineering and fluid transport. With a total of 2 patents, Tatsunami's work focuses on innovative solutions that enhance safety and efficiency.

Latest Patents

One of Tatsunami's latest inventions is the anti-earthquake bearing apparatus. This apparatus is designed to bear the weight of a structure while reducing the vibration energy that propagates to it. It utilizes spherical bag-like bearing bodies, which are formed by sealing a fluid, rubber-like solid, or gas into bags made from a rubber-sheet material reinforced with fiber. Each bag-like bearing body is equipped with charging and discharging ports, and recesses are formed on the surfaces of both the structure and the foundation to prevent positional shifts.

Another significant invention is the floating cargo hose. This hose is engineered for transporting fluids from vessels and boasts excellent abrasion resistance. It features a unique color made from colored urethane. The manufacturing process involves wrapping a hose body, embedded with a fibrous sheet or spiral wire in rubber, with a sponge layer that has closed cells. The sponge layer is then covered with a first rubber cover, which is treated to promote adhesion and coated with liquid urethane rubber to form a second cover.

Career Highlights

Throughout his career, Keizo Tatsunami has worked with prominent companies, including Bridgestone Tire Company Limited and Bridgestone Corporation. His experience in these organizations has contributed to his expertise in developing innovative technologies.

Collaborations

Tatsunami has collaborated with notable coworkers, including Mamoru Tanaka and Mitsugu Makise. Their combined efforts have led to advancements in the technologies they have worked on together.

Conclusion

Keizo Tatsunami's contributions to anti-earthquake technology and fluid transport solutions highlight his innovative spirit and dedication to engineering. His patents reflect a commitment to enhancing safety and efficiency in structural applications.

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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