Chisso Polypro Fiber Company Limited

Calculating rank

USPTO Granted Patents = 5

% Expired Patents = 60.0

EPO Patents = 2

Forward Citations = 85

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9 inventors (with patents filed for the assignee):

Junji Iwata (4 out of 9 patents)

Yoshimi Tsujiyama (3 out of 15 patents)

Hisanobu Minamizawa (3 out of 5 patents)

4. Yasushi Matsuda (1 out of 6 patents)

5. Mitsuru Kojima (1 out of 9 patents)

6. Yukinori Kataoka (1 out of 6 patents)

7. Masaru Andoh (1 out of 1 patent)

8. Kyuzo Namura (1 out of 1 patent)

9. Kouichi Hatada (1 out of 8 patents)

10. Masuo c/o Chisso Polypro Fiber Iwata (0 patent)

11. Takayuki c/o Chisso Polypro Fiber Nishitani (0 patent)

5 patents: Sort by Forward Citations

1. 9290868 - Biodegradable nonwoven fabric and fiber product using the same (2016-03-22),

2. 7700504 - Elastic nonwoven fabric and fiber products manufactured therefrom (2010-04-20),

3. 7462573 - Elastic long-fiber non-woven fabric, and fabric product using the same (2008-12-09),

4. 7405171 - Elastic nonwoven fabric and fiber products manufactured therefrom (2008-07-29),

5. 7235596 - Flame-resistant fiber and fiber molding using the same (2007-06-26),

Company Overview

Chisso Polypro Fiber Company Limited is a leading manufacturer of polypropylene fibers for various industries including textiles, automotive, and construction. With years of experience and expertise in the field, Chisso Polypro Fiber Company Limited is committed to providing high-quality, innovative solutions to meet the needs of their customers.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

5 Patents

#2,725 in Tokyo

#6,661 in Japan

Tokyo, Japan

Chisso Polypro Fiber Company Limited

Forward Citations = 85

9 inventors:

Junji Iwata (4 out of 9 patents)

Yoshimi Tsujiyama (3 out of 15 patents)

Hisanobu Minamizawa (3 out of 5 patents)

4. Yasushi Matsuda (1 out of 6 patents)

5. Mitsuru Kojima (1 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Chisso Polypro Fiber Company Limited. Retrieved from https://idiyas.com/company/chisso-polypro-fiber-company

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

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]

2 patents (EPO):

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]