Yokohama, Japan

Tadashi Harashima

This inventor holds 1 USPTO granted patent. Top assignee: Nissan Motor Company Limited. Active years: 1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadashi Harashima. Retrieved from https://idiyas.com/inventor/tadashi-harashima-pk6l7irm

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 = 3.0

ph-index = 1

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 1987

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1 patent (USPTO):Explore Patents

Title: Innovations of Tadashi Harashima

Introduction

Tadashi Harashima is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of automotive technology, particularly through his innovative designs and patents. His work has been instrumental in enhancing vehicle performance and efficiency.

Latest Patents

One of Harashima's key patents is the intake control device. This device includes a main intake passage equipped with a throttle valve and a shut-off valve located downstream of the throttle valve. Additionally, it features a bypass passage that branches off from an upstream portion of the throttle valve and connects to the main intake passage downstream of the shut-off valve. The amount of air flowing through the bypass passage is regulated by an idle control valve. This design effectively removes residual gas within the downstream section of the shut-off valve by utilizing a sufficient amount of scavenging air supplied through the bypass passage. Harashima holds 1 patent for this innovative device.

Career Highlights

Tadashi Harashima is currently employed at Nissan Motor Company Limited, where he continues to develop and refine automotive technologies. His expertise in intake control systems has contributed to advancements in engine performance and emissions control.

Collaborations

Throughout his career, Harashima has collaborated with talented individuals such as Hideo Morita and Eiji Mori. These partnerships have fostered a creative environment that encourages innovation and the development of cutting-edge automotive solutions.

Conclusion

Tadashi Harashima's contributions to automotive technology, particularly through his intake control device, highlight his role as a significant inventor in the industry. His work continues to influence vehicle design and performance, showcasing the importance of innovation in 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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