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For the Inventor, By the Inventor

Osaka, Japan

Yasuyoshi Ueda

USPTO Granted Patents = 14

Average Co-Inventor Count = 4.1

ph-index = 4

Forward Citations = 41(Granted Patents)


Location History:

  • Toyonaka, JP (1987)
  • Munich, DE (1995)
  • Osaka, JP (1990 - 1998)
  • Hirakata, JP (1991 - 1998)
  • Kobe, JP (2001)

Company Filing History:

goldMedal14 out of 6,893 
 
Sumitomo Chemical Company, Limited
 patents
silverMedal1 out of 5 
 
Daiei Chemical Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1987-2001

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14 patents (USPTO):Explore Patents
1. 6218552 - 3-phenyl-7-[4-(tetrahydrofurfuryloxy)phenyl]-1,5-dioxa-s-indacene-2,6-dione (2001-04-17),
2. 5831041 - Monoazo compounds and dyeing or printing process for fiber materials (1998-11-03),
3. 5770707 - Monoazo compounds and dyeing or printing methods using the same (1998-06-23),
4. 5720779 - Anthraquinone reactive dye compositions and methods for dyeing or (1998-02-24),
5. 5717077 - Fiber reactive phthalocyanine monoazo compounds having improved dyeing (1998-02-10),
6. 5646274 - Phthalocyanine monoazo compounds and a process for producing the same (1997-07-08),
7. 5596083 - Monoazo compounds and method for dyeing or printing fiber materials (1997-01-21),
8. 5424455 - Heterocyclic compounds for making red disperse dyes (1995-06-13),
9. 5077416 - Benzodifuranone compounds useful for dyeing or printing hydrophobic (1991-12-31),
10. 5075429 - Monoazo-disperse dye compounds their production and their use (1991-12-24),
11. 5038415 - Disperse dye composition useful for dyeing of printing hydrophobic fiber (1991-08-13),
12. 5012015 - Process for producing 2,4-dichloro-3-alkyl-6-nitrophenol (1991-04-30),
13. 4923974 - 2,6-dicyano-4'-morpholinoazobenzene compounds useful for dyeing (1990-05-08),
14. 4710320 - Method for producing 1-amino-2-phenoxy-4-hydroxyanthraquinones (1987-12-01),

Title: Yasuyoshi Ueda: Innovator in Dye Chemistry

Introduction

Yasuyoshi Ueda is a prominent inventor based in Osaka, Japan, known for his significant contributions to the field of dye chemistry. With a total of 14 patents to his name, Ueda has developed innovative compounds that enhance the dyeing process for various fiber materials.

Latest Patents

Among his latest patents is a compound known as 3-phenyl-7-[4-(tetrahydrofurfuryloxy)phenyl]-1,5-dioxa-s-indacene-2,6-dione. This compound exhibits a unique crystal structure, showcasing the strongest peak at an angle of diffraction of 4.7 degrees in X-ray diffraction using a Cu-Kα-ray. It is particularly effective when applied to hydrophobic fiber materials, especially polyester, resulting in dyed or printed products with deep and brilliant colors that possess excellent fastness. Another notable patent involves a monoazo compound represented by a specific general formula. This compound enables red dyeing or printing of organic materials containing hydroxyl and/or amido groups, achieving excellent fixing in deep dyeing.

Career Highlights

Ueda has worked with reputable companies such as Sumitomo Chemical Company, Limited and Daiei Chemical Co., Ltd. His work in these organizations has allowed him to refine his expertise in dye chemistry and contribute to advancements in the industry.

Collaborations

Some of his notable coworkers include Takashi Omura and Jun Yamamoto, who have collaborated with Ueda on various projects, further enhancing the impact of his innovations in dye chemistry.

Conclusion

Yasuyoshi Ueda's contributions to dye chemistry through his innovative patents and collaborations have significantly advanced the field. His work continues to influence the dyeing processes used in the textile industry today.

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