Chiba, Japan

Osamu Kojima

This inventor holds 7 USPTO granted patents and 3 published patent applications. Top assignees: Chisso Corporation, Toyota Jidosha Kabushiki Kaisha, Chisso Corpoation. Active years: 1989-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Osamu Kojima. Retrieved from https://idiyas.com/inventor/osamu-kojima-jxbhynh1

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

Calculating rank
USPTO Granted Patents = 7 

% Patents Active = 85.7

Average Co-Inventor Count = 4.4

ph-index = 5

Forward Citations = 68(Granted Patents)


Location History:

  • Ichiharashi, JP (1989)
  • Ichihara-shi, Chiba, JP (1998)
  • Ichihara, JP (2000 - 2001)
  • Chiba, JP (1990 - 2018)

Company Filing History:


Years Active: 1989-2018

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7 patents (USPTO):Explore Patents

Title: Osamu Kojima: Innovator in Microporous Membrane Technology

Introduction

Osamu Kojima is a notable inventor based in Chiba, Japan, recognized for his contributions to the field of microporous membrane technology. With a total of seven patents to his name, Kojima has made significant advancements that enhance the performance and efficiency of various materials.

Latest Patents

One of his latest patents is for a microporous membrane and its manufacturing process. This innovative membrane features an asymmetric structure that provides higher permeability while maintaining a high level of particle rejection. The design includes a skin layer with formed micropores and a support layer that contains larger pores. The material used for this microporous membrane is a polyvinylidene fluoride-based resin. The skin layer is characterized by a three-dimensional network structure, where multiple spherical bodies act as nodes, interconnected by linear joining parts.

Career Highlights

Throughout his career, Osamu Kojima has worked with prominent companies such as Chisso Corporation and Toyota Jidosha Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in developing advanced materials and technologies.

Collaborations

Kojima has collaborated with notable coworkers, including Shinei Gima and Kouichi Hatada, further enhancing his innovative capabilities and expanding his contributions to the field.

Conclusion

Osamu Kojima's work in microporous membrane technology exemplifies his commitment to innovation and excellence. His patents reflect a deep understanding of material science and engineering, positioning him as a key figure in the 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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