Susono, Japan

Takeshi Okumura

This inventor holds 47 USPTO granted patents and 1 EPO patent, primarily in Internal Combustion Engine. Top assignees: Toyota Jidosha Kabushiki Kaisha, Toyota Jidosha Kogyo Kabushiki Kaisha, Other. Active years: 1979-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Okumura. Retrieved from https://idiyas.com/inventor/takeshi-okumura

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

Calculating rank

% Patents Active = 91.5


Average Co-Inventor Count = 3.0

ph-index = 15

Forward Citations = 626(Granted Patents)


Location History:

  • Susono-shi, Shizuoka-ken, JP (1983)
  • Toyota, JP (1987 - 1988)
  • Sosono, JP (2004)
  • Susono, JP (1979 - 2011)
  • Sunto-gun, JP (2015)

Company Filing History:


Years Active: 1979-2015

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Areas of Expertise:
Hydrogen Internal Combustion Engine
Fuel Injection System
Intake Apparatus
Combustion Chamber
Direct Fuel Injection
Helically-Shaped Intake Port
Siamese Port Type
Variable Swirl Cylinder Head
Flow Control Device
Lean Burn Engine
Intake System
Cylinder Head
47 patents (USPTO):Explore Patents

Title: **Takeshi Okumura: A Pioneering Inventor in Engine Technologies**

Introduction

Takeshi Okumura, an accomplished inventor based in Susono, Japan, holds an impressive portfolio of 47 patents. His contributions to engine technology have been significant, showcasing innovative designs aimed at improving performance and efficiency in internal combustion engines.

Latest Patents

One of Takeshi Okumura's latest inventions is the **Intake Apparatus of Engine**. This apparatus includes two intake passages for supplying fresh air to the cylinder, each equipped with its own intake valve. The design intelligently incorporates varying opening timings and valve lift amounts between the two valves, enhancing the engine's intake stroke performance. Another notable patent is the **Hydrogen-Used Internal Combustion Engine**, which features a dehydrogenation reactor that separates organic hydride-contained fuel into hydrogen and dehydrogenated fuel. This system allows for a switchable operation mode, enabling the engine to run on both hydrogen and dehydrogenated fuel or solely on hydrogen, offering versatile fuel options for enhanced sustainability.

Career Highlights

Throughout his career, Takeshi Okumura has contributed to well-known companies such as Toyota Motor Corporation and Toyota Industries Corporation. His work with Toyota has helped shape the automotive technology landscape, particularly in relation to fuel efficiency and alternative energy solutions.

Collaborations

Okumura's innovative journey has been enriched through collaborations with esteemed colleagues, including Kiyoshi Nakanishi and Tokuta Inoue. Together, they have tackled complex engineering challenges, pushing the boundaries of current automotive technologies.

Conclusion

Takeshi Okumura's inventive spirit and dedication to advancing engine technology have made him a notable figure in the field. With numerous patents to his name and a track record of significant contributions, Okumura's work continues to pave the way for future innovations in the automotive industry.

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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