Oyama, Japan

Masaru Okada

This inventor holds 3 USPTO granted patents. Top assignee: Kabushiki Kaisha Komatsu Seisakusho. Active years: 1979-1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaru Okada. Retrieved from https://idiyas.com/inventor/masaru-okada-dzq2d332

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 = 2.6

ph-index = 3

Forward Citations = 45(Granted Patents)


Company Filing History:


Years Active: 1979-1980

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3 patents (USPTO):Explore Patents

Title: Masaru Okada and Direct-Injection Combustion Chamber Design.

Introduction

Masaru Okada is an inventor associated with Oyama, Japan, and Kabushiki Kaisha Komatsu Seisakusho. His listed work includes patents concerning combustion chamber designs for direct-injection internal combustion engines. His portfolio includes 3 patents.

Latest Patents

Okada’s listed patents explore piston-head cavity shapes intended to support fuel-air mixing in direct-injection engines. One describes a chamber with an equilateral polygonal cavity in the upper part of the piston head, connected to a toroidal cavity below. The polygon’s rounded corners are specified by a radius relative to the radius of its inscribed circle, while multiple fuel-injection nozzles direct fuel jets toward the cavity wall.

Another patent describes a combustion chamber with an equilateral polygonal cavity and a circular-shaped cavity in its intermediate region. A centrally positioned fuel-injection nozzle directs fuel jets radially toward the cavity wall. Both designs address the geometry of the piston-head cavity and the placement of fuel injection in relation to the chamber.

Career Highlights

Okada’s documented patent work focuses on combustion chamber configurations for direct-injection engines. The described inventions use cavity geometry and fuel-jet direction as design features.

Collaborations

Among Okada’s listed coworkers are Seikichi Kanai and Kunihiko Komiyama. His company affiliation is Kabushiki Kaisha Komatsu Seisakusho.

Conclusion

Masaru Okada’s listed inventions center on polygonal and circular cavity arrangements for direct-injection combustion chambers, reflecting a focused contribution to engine design.

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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