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For the Inventor, By the Inventor

Tokyo, Japan

Takeshi Iizaki

This inventor holds 15 USPTO granted patents and 7 EPO patents. Top assignees: Kao Corporation, Kao Germany Gmbh. Active years: 2001-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Iizaki. Retrieved from https://idiyas.com/inventor/takeshi-iizaki

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

USPTO Granted Patents = 15

% Patents Active = 80.0

 

Average Co-Inventor Count = 2.8

ph-index = 3

Forward Citations = 39(Granted Patents)


Location History:

  • Darmstadt, DE (2011 - 2013)
  • Tokyo, JP (2001 - 2014)
  • Kawaguchi, JP (2014)
  • Saitama, JP (2021)

Company Filing History:

goldMedal12 out of 3,678 
 
Kao Corporation
 patents
silverMedal3 out of 122 
 
Kao Germany Gmbh
 patents

Years Active: 2001-2021

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15 patents (USPTO):Explore Patents
1. 11090246 - Powder hair dye composition (2021-08-17),
2. 11083680 - Liquid hair dye composition (2021-08-10),
3. 11083678 - Hair dyeing method (2021-08-10),
4. 11077043 - Liquid hair dye composition (2021-08-03),
5. 11077042 - Liquid hair dye composition (2021-08-03),
6. 10905644 - Method for treating hair (2021-02-02),
7. 8821591 - Hair decoration article and hair dyeing and bleaching method using same (2014-09-02),
8. 8795391 - Colouring composition (2014-08-05),
9. 8673022 - Colouring composition (2014-03-18),
10. 8529638 - Head hair dyeing composition (2013-09-10),
11. 8523956 - Colouring composition for keratin fibres (2013-09-03),
12. 8394151 - Head hair dyeing method (2013-03-12),
13. 8152858 - Head hair dyeing method (2012-04-10),
14. 7955400 - Two-part hair dye composition (2011-06-07),
15. 6174523 - Hair cuticle caring method (2001-01-16),

Title: The Innovative Contributions of Takeshi Iizaki

Introduction

Takeshi Iizaki is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of hair dye technology, holding a total of 15 patents. His work has been instrumental in developing innovative solutions for hair coloring.

Latest Patents

Among his latest patents is a powder hair dye composition. This composition includes components such as one or more azo dyes, an alkaline agent other than alkanolamines, and a specific percentage of solvent. Another notable patent is a hair dyeing method that involves mixing an alkaline agent with an oxidation dye precursor, an oxidizing agent, and specific dyes, followed by applying the mixture to hair.

Career Highlights

Takeshi Iizaki has worked with notable companies, including Kao Corporation and Kao Germany GmbH. His experience in these organizations has allowed him to refine his expertise in hair dye formulations and methods.

Collaborations

He has collaborated with esteemed colleagues such as Keiji Monda and Hiroyuki Fujinuma, contributing to advancements in hair dye technology.

Conclusion

Takeshi Iizaki's innovative work in hair dye technology has led to numerous patents and collaborations, showcasing his impact on the industry. His contributions continue to influence the field and inspire future innovations.

Profile summary based on public USPTO records.
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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