For the Inventor, By the Inventor

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Yamagata, Japan

Spiber Inc.

USPTO Granted Patents = 34

% Expired Patents = 2.9

CIPO Patents = 3

EPO Patents = 23

Trademarks = 5

Forward Citations = 28

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71 inventors (with patents filed for the assignee):

Keisuke Morita (8 out of 8 patents)

Kazuhide Sekiyama (7 out of 7 patents)

Junichi Sugahara (6 out of 7 patents)

4. Yunosuke Abe (6 out of 7 patents)

5. Kaori Sekiyama (5 out of 5 patents)

6. Mizuki Ishikawa (5 out of 5 patents)

7. Shinya Murata (4 out of 4 patents)

8. Toshiaki Osawa (4 out of 4 patents)

9. Kentaro Nakase (3 out of 3 patents)

10. Hiroaki Suzumura (3 out of 3 patents)

11. Akihiko Ozeki (3 out of 3 patents)

12. Takehisa Maekawa (2 out of 2 patents)

13. Keiji Numata (2 out of 7 patents)

14. Junichi Shimokata (2 out of 2 patents)

15. Kana Ishida (2 out of 2 patents)

Core Competencies:

Artificial Hair

Fibroin

Polypeptide

Protein Fiber

Yarn Manufacturing

Spider Silk

Hydrogel

Textile Products

Molded Articles

Recombinant Protein

Quick-Drying Properties

34 patents: Sort by Forward Citations

1. 12690634 - FIBER FOR ARTIFICIAL HAIRS, ARTIFICIAL HAIR, METHOD FOR PRODUCING FIBER FOR ARTIFICIAL HAIRS, AND METHOD FOR PRODUCING ARTIFICIAL HAIR (2026-07-28),

2. 12686954 - RECOMBINANT-STRUCTURE PROTEIN MULTIFILAMENT AND METHOD FOR MANUFACTURING SAME (2026-07-21),

3. 12668896 - Blended Yarn, Knitted/Woven Body of Same, and Method for Manufacturing Said Knitted/Woven Body (2026-06-30),

4. 12428454 - Water-absorbing and quick-drying property-imparting agent, and method for imparting water-absorbing and quick-drying properties (2025-09-30),

5. 12319718 - Modified fibroin (2025-06-03),

6. 12195883 - Modified fibroin fibers (2025-01-14),

7. 12163259 - Protein spun yarn manufacturing method (2024-12-10),

8. 12145971 - Polypeptide solution, production method for polypeptide fiber, and artificial polypeptide (2024-11-19),

9. 12084574 - Flexible polyurethane foam, automobile seat pad, and flexible polyurethane foam production method (2024-09-10),

10. 12018405 - Protein fiber crimping method, protein fiber production method, protein fibers, spun yarn, and textile product (2024-06-25),

11. 12018056 - Highly contracted synthetic fibroin fiber, production method therefor, and method for contracting synthetic fibroin fiber (2024-06-25),

12. 11981088 - Molded article and method for production thereof (2024-05-14),

13. 11851684 - Expression cassette (2023-12-26),

14. 11692015 - Modified fibroin (2023-07-04),

15. 11668024 - Polar solvent solution and production method thereof (2023-06-06),

Company Overview

Spiber Inc. is a biotechnology company based in Yamagata, Japan, specializing in the development of innovative materials derived from proteins. The company focuses on harnessing the potential of synthetic biology to create sustainable alternatives to traditional materials, such as silk and other fibers. Spiber's research and technology efforts are centered on protein engineering and fermentation processes, aiming to revolutionize industries like textiles and packaging with eco-friendly solutions that reduce environmental impact.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

34 Patents

#3 in Yamagata

#2,170 in Japan

#19,631 in the World

Yamagata, Japan

Spiber Inc.

Forward Citations = 28

71 inventors:

Keisuke Morita (8 out of 8 patents)

Kazuhide Sekiyama (7 out of 7 patents)

Junichi Sugahara (6 out of 7 patents)

4. Yunosuke Abe (6 out of 7 patents)

5. Kaori Sekiyama (5 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Spiber Inc.. Retrieved from https://idiyas.com/company/spiber

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]

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