Saitama, Japan

Masakazu Ookubo

This inventor holds 1 USPTO granted patent. Top assignees: Daito Valve Seisakusho Co., Ltd., Showa Tansan Co., Ltd.. Active years: 1995.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masakazu Ookubo. Retrieved from https://idiyas.com/inventor/masakazu-ookubo

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 = 2.0

ph-index = 1

Forward Citations = 15(Granted Patents)


Company Filing History:


Years Active: 1995

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1 patent (USPTO):Explore Patents

Title: The Innovative Mind of Masakazu Ookubo: A Focus on Valve Arrangements

Introduction: Masakazu Ookubo, an inventive mind based in Saitama, Japan, has made significant contributions to the realm of engineering with his innovative approach to valve arrangements. With one patent to his name, Ookubo has demonstrated an exceptional ability to design solutions that improve gas handling systems.

Latest Patents: Masakazu Ookubo's notable patent is focused on a unique valve arrangement. The main feature of this innovation is its functionality where the main valve slides to open when the plunger is pushed in. This mechanism facilitates communication between the nozzle hole and the main valve's operating bore, allowing compressed gas stored in a pressure vessel to actuate the follower valve's check valve. This well-thought-out design enables the gas to discharge efficiently from the pressure vessel through the communicating bore of the follower valve. An interesting aspect of this invention is its capability to prevent back-flow into the pressure vessel, ensuring safety and reliability under high-pressure conditions.

Career Highlights: Throughout his career, Masakazu Ookubo has worked with prominent companies such as Showa Tansan Co., Ltd. and Daito Valve Seisakusho Co., Ltd. His experience in these established firms has allowed him to refine his skills and apply his innovative ideas in practical settings, ultimately leading to the development of his patent.

Collaborations: During his professional journey, Masakazu Ookubo has had the opportunity to collaborate with Kiyoshi Sudo, enhancing the scope of his projects. Such partnerships often lead to the exchange of ideas and foster an environment of innovation.

Conclusion: Masakazu Ookubo's contributions to valve technology through his unique patent innovations have made a notable impact on the field. His work exemplifies the creativity and technical skill required of successful inventors, setting a benchmark for future advancements in gas handling solutions.

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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