Kobe, Japan

Ryota Kitago

This inventor holds 16 USPTO granted patents and 4 published patent applications and 21 EPO patents, primarily in Rubber Composition. Top assignees: Sumitomo Rubber Industries Limited, Shin-Etsu Chemical Co., Ltd.. Active years: 2015-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ryota Kitago. Retrieved from https://idiyas.com/inventor/ryota-kitago

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

Calculating rank
USPTO Granted Patents = 16 

% Patents Active = 81.3

 

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 7(Granted Patents)


Location History:

  • Hyogo, JP (2020 - 2022)
  • Kobe, JP (2015 - 2024)

Company Filing History:


Years Active: 2015-2025

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Areas of Expertise:
Pneumatic Tire
Rubber Composition
Crosslinked Rubber
Tire Manufacturing
Composition Method
Rubber Formulation
Tire Technology
Material Science
Composition Engineering
Tire Performance
Rubber Properties
16 patents (USPTO):Explore Patents

Title: Ryota Kitago: Innovator in Rubber Composition and Pneumatic Tire Technology

Introduction

Ryota Kitago is a prominent inventor based in Kobe, Japan. He has made significant contributions to the field of rubber compositions and pneumatic tires. With a total of 16 patents to his name, Kitago's work focuses on enhancing the performance and durability of rubber materials.

Latest Patents

One of his latest patents involves a rubber composition and pneumatic tire designed to provide reduced changes in tan δ peak temperature over time. This invention relates to rubber compositions that contain at least one copolymer obtained by copolymerizing an aromatic vinyl compound and a conjugated diene compound. The rubber compositions are characterized by a heat aging resistance index defined by equation (1) of 0.45 or less. Another notable patent addresses rubber compositions and pneumatic tires that aim to minimize changes in hardness over time. This invention also involves a rubber composition containing a copolymer obtained by copolymerizing an aromatic vinyl compound and a conjugated diene compound, with a heat aging resistance index defined by equation (1) of 10 or less.

Career Highlights

Throughout his career, Ryota Kitago has worked with esteemed companies such as Sumitomo Rubber Industries Limited and Shin-Etsu Chemical Co., Ltd. His experience in these organizations has allowed him to develop innovative solutions in the rubber industry.

Collaborations

Kitago has collaborated with notable coworkers, including Hiroyuki Kishimoto and Ryo Mashita. Their combined expertise has contributed to advancements in rubber technology.

Conclusion

Ryota Kitago's innovative work in rubber compositions and pneumatic tires showcases his dedication to improving material performance. His patents reflect a commitment to addressing industry challenges and enhancing product longevity.

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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