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Shikibo Ltd.

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USPTO Granted Patents = 16

% Expired Patents = 18.8

EPO Patents = 2

Forward Citations = 100

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46 inventors (with patents filed for the assignee):

Tetsuro Hirokawa (5 out of 5 patents)

Masayasu Ishibashi (4 out of 4 patents)

Takeshi Tanamura (4 out of 4 patents)

4. Yutaka Tsujimoto (3 out of 4 patents)

5. Koichi Hashimoto (3 out of 52 patents)

6. Hideki Sakonjo (3 out of 3 patents)

7. Akira Iriguchi (2 out of 2 patents)

8. Toru Kawai (2 out of 2 patents)

9. Shoji Fujimura (2 out of 2 patents)

10. Yasuhiko Terada (2 out of 2 patents)

11. Jun Yasuda (2 out of 2 patents)

12. Masao Kuriyama (2 out of 2 patents)

13. Totaro Yamagata (2 out of 2 patents)

14. Shuji Banno (2 out of 2 patents)

15. Kentaro Shindo (1 out of 25 patents)

16 patents: Sort by Forward Citations

1. 11504443 - Odor-modulating agent and odor-modulating method (2022-11-22),

2. 9481442 - Dry preform, annular structure made of a composite material, and manufacturing method for the annular structure (2016-11-01),

3. 9415463 - Laser marking method (2016-08-16),

4. 8991641 - Pressure vessel and method of manufacturing the same (2015-03-31),

5. 7384585 - Method for producing dry preform for composite material (2008-06-10),

6. 7138167 - Preform precursor for fiber-reinforced composite material, preform for fiber-reinforced composite material, and method of manufacturing the precursor and the preform (2006-11-21),

7. 7114319 - Unidirectional long fiber three dimensional fiber structure produced by short fiber intertwining and production method thereof (2006-10-03),

8. 5427844 - Articles of natural cellulose fibers with improved deodorant properties (1995-06-27),

9. 4939844 - Master pattern for upper garments (1990-07-10),

10. 4895938 - Process for separating polysaccharides from tamarind seeds (1990-01-23),

11. 4802282 - Master pattern for upper garments (1989-02-07),

12. 4656037 - SPF-100 and process for the preparation thereof (1987-04-07),

13. 4226718 - Process for separating polyvinyl alcohol from its solution (1980-10-07),

14. 4142853 - Process for improving cellulose fiber properties and for dyeing the same (1979-03-06),

15. 4113431 - Method for dyeing cellulose fibers by disperse dyes (1978-09-12),

Company Overview

Shikibo Ltd. is a prominent Japanese company based in Osaka, specializing in the development and manufacturing of advanced materials and chemical products. The organization focuses on various sectors, including textiles, industrial materials, and functional chemicals, leveraging innovative technologies to enhance product performance and sustainability. With a commitment to research and development, Shikibo aims to address the evolving needs of industries while contributing to environmental conservation and efficiency in manufacturing processes.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

16 Patents

#363 in Osaka

#3,345 in Japan

#37,887 in the World

Shikibo Ltd.

Forward Citations = 100

46 inventors:

Tetsuro Hirokawa (5 out of 5 patents)

Masayasu Ishibashi (4 out of 4 patents)

Takeshi Tanamura (4 out of 4 patents)

4. Yutaka Tsujimoto (3 out of 4 patents)

5. Koichi Hashimoto (3 out of 52 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Shikibo Ltd.. Retrieved from https://idiyas.com/company/shikibo

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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