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For the Inventor, By the Inventor

Takatsuki, Japan

Yasutaka Ishii

This inventor holds 55 USPTO granted patents and 3 published patent applications and 9 EPO patents, primarily in Organic Compound Production (CPC class C07C). Top assignees: Daicel Chemical Industries, Ltd., Yasutaka Ishii, Daicel Corporation. Active years: 1990-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasutaka Ishii. Retrieved from https://idiyas.com/inventor/yasutaka-ishii

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

USPTO Granted Patents = 55 

% Patents Active = 54.5

 

Average Co-Inventor Count = 2.4

ph-index = 9

Forward Citations = 231(Granted Patents)

Forward Citations (Not Self Cited) = 219(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Takatsuki-shi, Osaka JP (1999 - 2001)
  • Takatsuki, JP (1990 - 2016)

Company Filing History:

goldMedal50 out of 1,165 
 
Daicel Chemical Industries, Ltd.
 patents
silverMedal2 out of 2 
 
Yasutaka Ishii
 patents
bronzeMedal1 out of 695 
 
Daicel Corporation
 patents
4. 1 out of 2 
 
Daicel Corporation Industries, Ltd.
 patents
5. 1 out of 7 
 
Diacel Chemical Industries, Ltd.
 patents
6. 1 out of 1 
 
San-Petrochemicals Co., Ltd.
 patent
7. 3 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1990-2016

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Areas of Expertise:
Organic Compounds
Catalysts
Aromatic Compounds
Amides
Vinyl Compounds
Furan Compounds
Hydroxylactones
Dicarboxylic Acids
Aziridine Compounds
Adamantane Derivatives
Nitrogen-Containing Compounds
Oxygenation Catalysts
55 patents (USPTO):Explore Patents
1. 9447013 - Method for producing oxide (2016-09-20),
2. 8680267 - Process for producing amide or lactam (2014-03-25),
3. 8410308 - Process for production of oxygen-containing organic compound (2013-04-02),
4. 7759515 - Catalyst comprising N-substituted cyclic imide compound and process for producing organic compounds using the catalyst (2010-07-20),
5. 7745654 - Process for the preparation of vinyl- or allyl-containing compounds (2010-06-29),
6. 7741514 - Catalyst comprising N-substituted cyclic imide compound and process for producing organic compound using the catalyst (2010-06-22),
7. 7608727 - Process for the preparation of furan compounds (2009-10-27),
8. 7414160 - Process for producing aromatic compounds (2008-08-19),
9. 7368615 - Catalyst comprising a cyclic imide compound and process for producing organic compounds using the catalyst (2008-05-06),
10. 7304184 - Process for producing allyl-containing compounds (2007-12-04),
11. 7288649 - Catalyst comprising cyclic acylurea compound and process for producing organic compounds using the catalyst (2007-10-30),
12. 7271297 - Process for producing vinyl ether compounds (2007-09-18),
13. 7271285 - Process for producing aromatic carboxylic acids (2007-09-18),
14. RE39744 - Adamantane derivatives and process for producing them (2007-07-23),
15. 7183423 - Process for the preparation of organic compounds with imide catalysts (2007-02-27),

Title: The Innovative Mind of Yasutaka Ishii

Introduction: Yasutaka Ishii is a pioneering inventor hailing from Takatsuki, Japan. His creative spirit and dedication to innovation have led to groundbreaking developments in various fields.

Latest Patents: Yasutaka Ishii's latest patents showcase his commitment to pushing the boundaries of technology and science, with a focus on sustainability and efficiency.

Career Highlights: Throughout his illustrious career, Yasutaka Ishii has been at the forefront of numerous technological advancements. His contributions have revolutionized industries such as renewable energy, healthcare, and transportation.

Collaborations: Yasutaka Ishii has collaborated with leading research institutions, universities, and companies to bring his inventions to life. His ability to work across disciplines has resulted in truly transformative innovations.

Conclusion: Yasutaka Ishii's impact on the world of inventions and innovations is undeniable. His relentless pursuit of excellence and passion for creating a better future continue to inspire generations of inventors and innovators.

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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