Tokyo, Japan

Shigezou Kojima

This inventor holds 2 USPTO granted patents, plus 1 CIPO patent. Top assignees: Nippon Petrochemicals Company, Limited, Polymer Processing Research Inst., Ltd., Polymer Processing Research Institute Ltd.. Active years: 1991-1994.

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

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 = 4.8

ph-index = 2

Forward Citations = 75(Granted Patents)


Company Filing History:


Years Active: 1991-1994

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2 patents (USPTO):Explore Patents

Title: Shigezou Kojima: Innovator in Non-Woven Fabric Technology

Introduction

Shigezou Kojima is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of non-woven fabric technology. With a total of 2 patents, his work has advanced the understanding and application of non-woven materials in various industries.

Latest Patents

Kojima's latest patents include innovative methods for creating non-woven fabrics. One of his notable inventions is a method and apparatus for making cross-laminated stretched non-woven fabric. This non-woven fabric boasts a strength comparable to that of woven fabric. The fabric features a laminated structure composed of a warp web of random-laid non-woven fabric that is stretched lengthwise, providing greater strength in that direction. Additionally, a weft web of random-laid non-woven fabric is stretched transversely, enhancing strength in the transverse direction. The filaments in both the warp and weft webs are designed to be free from molecular orientation, allowing them to stretch at least two times their original length before the web is stretched. This stretching process leads to molecular orientation within the filaments, resulting in enhanced material properties.

Career Highlights

Throughout his career, Kojima has worked with notable companies, including Nippon Petrochemicals Company, Limited and Polymer Processing Research Institute, Ltd. His experience in these organizations has contributed to his expertise in polymer processing and material innovation.

Collaborations

Kojima has collaborated with esteemed colleagues such as Kazuhiko Kurihara and Hiroshi Yazawa. These partnerships have fostered a collaborative environment that has led to significant advancements in non-woven fabric technology.

Conclusion

Shigezou Kojima's innovative work in non-woven fabric technology has positioned him as a key figure in the field. His patents and collaborations reflect his commitment to advancing material science and engineering.

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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