Osaka, Japan

Tatsuro Ohsara

This inventor holds 8 USPTO granted patents and 5 EPO patents. Top assignees: Yanmar Co., Ltd., Yanmar Power Technology Co., Inc., Japan Ship Machinery & Equipment Association. Active years: 2019-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuro Ohsara. Retrieved from https://idiyas.com/inventor/tatsuro-ohsara

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


% Patents Active = 75.0

 

Average Co-Inventor Count = 4.2

ph-index = 2

Forward Citations = 12(Granted Patents)


Company Filing History:


Years Active: 2019-2022

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8 patents (USPTO):Explore Patents

Title: Innovator Tatsuro Ohsara: Pioneering Engine Technology in Osaka

Introduction

Tatsuro Ohsara is a prominent inventor hailing from Osaka, Japan. With a total of eight patents to his name, he has made significant strides in the field of engine technology. Ohsara’s innovative approaches have contributed to advancements in engine devices, emphasizing efficient fuel usage and improved engine performance.

Latest Patents

One of Ohsara's notable inventions pertains to an engine device that includes an intake manifold designed to supply air into a cylinder, along with an exhaust manifold to output exhaust gas. This device features a gas injector that mixes gaseous fuel with air from the intake manifold, and a main fuel injection valve that injects liquid fuel for combustion. A key aspect of this invention is its ability to switch from a gas mode to a diesel mode, where the supply-start timing of the liquid fuel is deliberately delayed in relation to the supply-stop timing of the gaseous fuel. This innovation enhances the efficiency and control of engine operation.

Career Highlights

Throughout his career, Tatsuro Ohsara has been associated with reputable companies including Yanmar Co., Ltd. and Yanmar Power Technology Co., Inc. His work in these firms has been instrumental in developing engine technologies that adhere to modern standards and environmental considerations.

Collaborations

Ohsara has collaborated with notable colleagues such as Taishi Murakami and Osamu Yamagishi. These partnerships have fostered a creative environment that encourages innovation and the pursuit of advanced engineering solutions.

Conclusion

In summary, Tatsuro Ohsara's contributions to engine technology reflect his commitment to innovation and excellence. With his eight patents, he continues to influence the automotive industry, aspiring to improve engine efficiency and performance through his groundbreaking inventions. His work showcases the impact that dedicated inventors can have on technology and 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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