Fujisawa, Japan

Takashi Haseyama

This inventor holds 15 USPTO granted patents and 1 published patent application and 7 EPO patents. Top assignee: Isuzu Motors Limited. Active years: 2005-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Haseyama. Retrieved from https://idiyas.com/inventor/takashi-haseyama

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 15 

% Patents Active = 60.0


Average Co-Inventor Count = 4.8

ph-index = 5

Forward Citations = 87(Granted Patents)


Company Filing History:


Years Active: 2005-2015

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15 patents (USPTO):Explore Patents

Title: Takashi Haseyama: Innovator in Diesel Exhaust Technology

Introduction

Takashi Haseyama is a prominent inventor based in Fujisawa, Japan. He has made significant contributions to the field of diesel exhaust technology, holding a total of 15 patents. His work focuses on enhancing the efficiency and functionality of diesel particulate filter systems.

Latest Patents

Haseyama's latest patents include a diesel particulate filter system designed to suppress clogging and improve convenience. This system features an accumulated particulate matter (PM) quantity estimator that estimates the PM quantity in an idle state. Additionally, it incorporates a long low idle forced regeneration unit that automatically performs regeneration of the diesel particulate filter (DPF) when the estimated PM quantity exceeds a predetermined level. This innovative approach allows for automatic regeneration while the vehicle is in motion, enhancing overall performance.

Another notable patent is related to the control method of an exhaust gas purification system. This invention reduces the data required for control during forced regeneration, thereby avoiding torque shock by smoothly adjusting fuel pressure. The system intelligently manages fuel injection based on the operational state of the internal combustion engine, ensuring optimal performance across various load conditions.

Career Highlights

Haseyama is currently employed at Isuzu Motors Limited, where he continues to develop cutting-edge technologies in the automotive sector. His expertise in diesel exhaust systems has positioned him as a key figure in the industry.

Collaborations

Throughout his career, Haseyama has collaborated with notable colleagues, including Tatsuo Mashiko and Takao Onodera. These partnerships have fostered innovation and contributed to the advancement of diesel technology.

Conclusion

Takashi Haseyama's contributions to diesel exhaust technology exemplify his commitment to innovation and efficiency. His patents reflect a deep understanding of the challenges in the automotive industry and a dedication to developing solutions that enhance vehicle performance.

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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