Ohbu, Japan

Nobuo Shimizu

This inventor holds 2 USPTO granted patents. Top assignees: Aisan Kogyo Kabushiki Kaisha, Toyota Jidosha Kogyo Kabushiki Kaisha. Active years: 1978-1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuo Shimizu. Retrieved from https://idiyas.com/inventor/nobuo-shimizu-v7087jat

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 = 2

Forward Citations = 13(Granted Patents)


Location History:

  • Ohbu, JA (1978)
  • Ohbu, JP (1980)

Company Filing History:


Years Active: 1978-1980

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2 patents (USPTO):Explore Patents

Title: Nobuo Shimizu: Innovator in Carburetor Technology

Introduction

Nobuo Shimizu is a notable inventor based in Ohbu, Japan. He has made significant contributions to the field of carburetor technology, holding a total of 2 patents. His innovative designs have improved the efficiency and functionality of carburetors in various applications.

Latest Patents

Shimizu's latest patents include a unique carburetor design featuring an accelerator pump. This carburetor utilizes an accelerating pump piston to push fuel from the pump chamber into the air intake passageway during acceleration. It also incorporates a second pump chamber that is expandable and contractable, communicating with the pump chamber via a throttle and pressure control means. This design ensures that the second pump chamber expands only when the fuel pressure exceeds a predetermined value. Another notable patent is his slow fuel supply system, which features a slow fuel passage extending to idle and slow ports. This system includes a slow port plug with oblique and axial bores, along with an idle adjustment screw that enhances the carburetor's performance.

Career Highlights

Throughout his career, Nobuo Shimizu has worked with prominent companies in the automotive industry, including Toyota Motor Corporation and Aisan Kogyo Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to advancements in carburetor technology.

Collaborations

Shimizu has collaborated with talented individuals in his field, including Takio Suzuki and Tetsuo Yamashirodani. These collaborations have fostered innovation and have led to the development of cutting-edge technologies in carburetor design.

Conclusion

Nobuo Shimizu's contributions to carburetor technology have made a lasting impact on the automotive industry. His innovative patents and collaborations with industry leaders highlight his dedication to advancing engineering 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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