Hitachi, Japan

Tokihiko Sakuma

This inventor holds 3 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1982-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tokihiko Sakuma. Retrieved from https://idiyas.com/inventor/tokihiko-sakuma

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 = 5.1

ph-index = 2

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 1982-1985

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3 patents (USPTO):Explore Patents

Title: Tokihiko Sakuma: Innovator in Internal Combustion Engine Technology

Introduction

Tokihiko Sakuma is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of internal combustion engines, holding a total of 3 patents. His work focuses on improving engine performance and fuel efficiency through innovative designs.

Latest Patents

One of Sakuma's latest patents is an air-fuel ratio control device for internal combustion engines. This device is designed to enhance the atomization of fuel by controlling the flow rate of air supplied to the carburetors based on various engine operation parameters. This innovation aims to improve the idling performance and fuel consumption of the engine. Another significant patent is a throttle valve linkage for use with a multi-carburetor assembly. This invention allows for synchronized operation of multiple carburetors, ensuring that the throttle shafts rotate in opposite directions, which optimizes engine performance.

Career Highlights

Tokihiko Sakuma is associated with Hitachi, Ltd., a leading company in technology and engineering. His work has been instrumental in advancing the efficiency of internal combustion engines, making a lasting impact in the automotive industry.

Collaborations

Sakuma has collaborated with notable coworkers such as Tadao Osawa and Takashige Kohno. Their combined expertise has contributed to the development of innovative technologies in their field.

Conclusion

Tokihiko Sakuma's contributions to internal combustion engine technology highlight his role as a key innovator. His patents reflect a commitment to enhancing engine performance and fuel efficiency, marking him as a significant figure in the realm of automotive engineering.

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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