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For the Inventor, By the Inventor

Kuga, Japan

Shuzo Sasagawa

This inventor holds 4 USPTO granted patents. Top assignees: Mitsui Petrochemical Industries, Ltd., Unicharm Corporation. Active years: 1978-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shuzo Sasagawa. Retrieved from https://idiyas.com/inventor/shuzo-sasagawa

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

USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 4.3

ph-index = 4

Forward Citations = 49(Granted Patents)


Location History:

  • Iwakuni, JP (1978)
  • Waki, JP (1992)
  • Kuga, JP (1993 - 1994)

Company Filing History:

goldMedal4 out of 1,008 
 
Mitsui Petrochemical Industries, Ltd.
 patents
silverMedal2 out of 1,655 
 
Unicharm Corporation
 patents
where one patent can have more than one assignee

Years Active: 1978-1994

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4 patents (USPTO):Explore Patents
1. 5275884 - Split fibers, integrated split fiber articles and method for preparing (1994-01-04),
2. 5188895 - Split fibers, integrated split fiber articles and method for preparing (1993-02-23),
3. 5135800 - Obliquely oriented polypropylene cross film and fastening tape for paper (1992-08-04),
4. 4102720 - Process for producing synthetic resin laminates (1978-07-25),

Title: Innovations of Shuzo Sasagawa

Introduction

Shuzo Sasagawa is a notable inventor based in Kuga, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced synthetic fibers. With a total of four patents to his name, his work has had a considerable impact on various industries.

Latest Patents

One of Shuzo Sasagawa's latest patents focuses on the production of bulky split fibers with enhanced bond strength. This innovative method involves preparing a composite synthetic resin film with a three-layer structure. The film consists of a polypropylene layer made from a polypropylene/polyethylene blend, with polyethylene layers on either side. The process includes slitting and stretching the composite film to create stretched tapes, which are then split for fibrillation. An integral article is formed from the resulting split fibers by mixing them with plant fibers and heating them at a temperature between the melting points of polyethylene and polypropylene. This method effectively integrates the split fibers with each other or with the plant fibers, showcasing Sasagawa's ingenuity in material development.

Career Highlights

Throughout his career, Shuzo Sasagawa has worked with prominent companies such as Mitsui Petrochemical Industries, Ltd. and Unicharm Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in synthetic materials.

Collaborations

Sasagawa has collaborated with notable colleagues, including Kazunari Nishino and Hirofumi Katsurayama. These partnerships have fostered a creative environment that has led to the advancement of their collective research and development efforts.

Conclusion

Shuzo Sasagawa's contributions to the field of synthetic fibers and materials science are noteworthy. His innovative patents and collaborations reflect his commitment to advancing technology in this area. His work continues to influence the industry and inspire 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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