Kashiwazaki, Japan

Daisaku Kobayashi

This inventor holds 1 USPTO granted patent. Top assignees: Nissan Motor Company Limited, Riken Piston Ring Kogyo Kabushiki Kaisha. Active years: 1977.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Daisaku Kobayashi. Retrieved from https://idiyas.com/inventor/daisaku-kobayashi-o1acuygl

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 = 5.0

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:


Years Active: 1977

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1 patent (USPTO):Explore Patents

Title: Daisaku Kobayashi: Innovator in Rotary Piston Engine Technology

Introduction

Daisaku Kobayashi is a notable inventor based in Kashiwazaki, Japan. He has made significant contributions to the field of internal combustion engines, particularly through his innovative designs and patents. His work has had a lasting impact on engine technology.

Latest Patents

Kobayashi holds a patent for an oil seal assembly used in rotary piston internal combustion engines. This invention features a rotor journalled on an eccentric portion of an engine shaft. The sealing arrangement includes a first radially extending annular face connected to the engine shaft, and a disc connected to the rotor with a second radially extending annular face. A sealing ring is positioned between these two faces, with a spring that biases the sealing ring to maintain contact. Additionally, an O-ring is placed between the sealing ring and the component that is in rotatable unison with the other face. This innovative design enhances the efficiency and reliability of rotary piston engines.

Career Highlights

Throughout his career, Daisaku Kobayashi has worked with prominent companies in the automotive industry. He has been associated with Riken Piston Ring Kogyo Kabushiki Kaisha and Nissan Motor Company Limited. His experience in these organizations has allowed him to refine his skills and contribute to significant advancements in engine technology.

Collaborations

Kobayashi has collaborated with notable colleagues, including Ko Chiba and Toshitugu Ishizawa. These partnerships have fostered an environment of innovation and creativity, leading to the development of cutting-edge technologies in the automotive sector.

Conclusion

Daisaku Kobayashi is a distinguished inventor whose work in rotary piston engine technology has made a significant impact on the industry. His innovative designs and collaborations with leading companies and colleagues highlight his contributions to engineering advancements.

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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