Osaka, Japan

Norihito Sakai

This inventor holds 15 USPTO granted patents and 11 published patent applications and 6 EPO patents. Top assignees: Mitsubishi Chemical Corporation, The Nippon Synthetic Chemical Industry Co., Ltd.. Active years: 2011-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Norihito Sakai. Retrieved from https://idiyas.com/inventor/norihito-sakai

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

USPTO Granted Patents = 15 

% Patents Active = 93.3

 

Average Co-Inventor Count = 2.1

ph-index = 2

Forward Citations = 17(Granted Patents)


Location History:

  • Osaka, JP (2011 - 2020)
  • Tokyo, JP (2023 - 2024)

Company Filing History:


Years Active: 2011-2025

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15 patents (USPTO):Explore Patents

Title: Innovations of Norihito Sakai: A Pioneer in Molded Articles and Diverging Agents

Introduction

Norihito Sakai, an accomplished inventor based in Osaka, Japan, has made significant contributions to the field of materials science, particularly in the development of molded articles and diverting agents. With a prolific portfolio of 13 patents, his work continues to influence various industries by enhancing product performance and sustainability.

Latest Patents

Among his recent innovations, one of the standout patents is the "Molded Article and Method for Producing Molded Article." This invention features a molded article that possesses remarkable gas barrier properties without the need for a gas barrier layer, while also ensuring molding stability and biodegradability. It comprises an aliphatic polyester-based resin and a polyvinyl alcohol-based resin as its main components, arranged in a phase-separated structure that enhances functionality.

Another noteworthy patent is the "Diverting Agent and Method of Filling Fracture in Well Using the Same." This innovation addresses the need for a diverting agent that gradually dissolves in water. It includes a polyvinyl alcohol-based resin and outlines an effective method for utilizing this agent to fill fractures, thereby improving operational efficiency in various applications.

Career Highlights

Norihito Sakai has held positions at prominent companies in the chemical industry. Notably, he has worked at Mitsubishi Chemical Corporation and The Nippon Synthetic Chemical Industry Co., Ltd. His experience in these organizations has greatly contributed to his expertise in developing novel materials and applications.

Collaborations

Throughout his career, Sakai has collaborated with esteemed professionals, including Mitsuo Shibutani and Kaoru Inoue. These partnerships have fostered innovation and have played a crucial role in refining his inventions, further emphasizing the importance of teamwork in the research and development process.

Conclusion

In conclusion, Norihito Sakai exemplifies the spirit of innovation in the field of materials science through his patents and collaborations. His dedication to enhancing product functionality and sustainability positions him as a significant figure in his industry. As he continues to develop his ideas, there is no doubt that his work will leave a lasting impact on future innovations.

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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