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Dystar Japan Ltd.

USPTO Granted Patents = 19

Forward Citations = 27

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18 inventors (with patents filed for the assignee):

Kiyoshi Himeno (10 out of 44 patents)

Toshio Hihara (10 out of 35 patents)

Ulrich Buhler (6 out of 57 patents)

4. Ryouichi Sekioka (5 out of 9 patents)

5. Hubert Kruse (3 out of 18 patents)

6. Yousuke Takahashi (3 out of 4 patents)

7. Kazuhisa Konishi (2 out of 3 patents)

8. Yoshiharu Hamano (1 out of 2 patents)

9. Hideaki Imafuku (1 out of 2 patents)

10. Kuniko Kira (1 out of 2 patents)

11. Toshikazu Tamiya (1 out of 2 patents)

12. Shinji Kubo (1 out of 1 patent)

13. Takashi Fujita (1 out of 2 patents)

14. Jurgen Kuhlwein (1 out of 5 patents)

15. Klaus-Wilfried Wanken (1 out of 6 patents)

19 patents: Sort by Forward Citations

1. 5922089 - Method of dyeing polyester and polyester-containing textile materials (1999-07-13),

2. 5917121 - Monoazo dyes which are stable under dyeing conditions, their preparation (1999-06-29),

3. 5902356 - Textile dye preparations (1999-05-11),

4. 5824117 - Nitrobenzisothiazole azo dyestuff (1998-10-20),

5. 5760197 - Hydroxyquinolone monoazo dyestuffs, their preparation and use (1998-06-02),

6. 5756690 - Red reactive dyes, their compositions and dyeing method employing them (1998-05-26),

7. 5744588 - Blue type disperse dye mixture and process for its preparation (1998-04-28),

8. 5734028 - Blue type disperse dye mixture (1998-03-31),

9. 5639282 - Process for dyeing polyester and polyester-containing textile materials (1997-06-17),

10. 5608042 - Benzothiazolemonoazo dyes (1997-03-04),

11. 5595575 - Blue disperse dye mixture (1997-01-21),

12. 5569309 - Disperse dye compositions (1996-10-29),

13. 5545236 - Red reactive dyes, their compositions and dyeing method employing them (1996-08-13),

14. 5532344 - Process for producing a monoazodye by diazo-coupling of a p-nitroanaline (1996-07-02),

15. 5527888 - Thiophene-type monoazo dyes (1996-06-18),

Company Overview

Dystar Japan Ltd., based in Osaka, specializes in the development and manufacturing of dyes and chemical products for various industries, including textiles, plastics, and coatings. The company is known for its commitment to innovation and sustainability, providing high-quality solutions that meet the evolving needs of its global clientele. Dystar Japan focuses on research in color chemistry and application technologies, contributing to advancements in material science and enhancing product performance across diverse applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

19 Patents

#335 in Osaka

#3,039 in Japan

#32,663 in the World

Dystar Japan Ltd.

Forward Citations = 27

18 inventors:

Kiyoshi Himeno (10 out of 44 patents)

Toshio Hihara (10 out of 35 patents)

Ulrich Buhler (6 out of 57 patents)

4. Ryouichi Sekioka (5 out of 9 patents)

5. Hubert Kruse (3 out of 18 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Dystar Japan Ltd.. Retrieved from https://idiyas.com/company/dystar-japan

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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