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For the Inventor, By the Inventor

Osaka, Japan

Taketo Hayashi

This inventor holds 13 USPTO granted patents and 3 EPO patents. Top assignees: Sumika Fine Chemicals, Co.,ltd., Sumitomo Chemical Company, Limited, Sumika Fire Chemicals Co., Ltd.. Active years: 1995-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Taketo Hayashi. Retrieved from https://idiyas.com/inventor/taketo-hayashi

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

Calculating rank
USPTO Granted Patents = 13

% Patents Active = 69.2

 

Average Co-Inventor Count = 2.5

ph-index = 2

Forward Citations = 13(Granted Patents)


Location History:

  • Yao, JP (1995 - 1996)
  • Osaka, JP (1999 - 2008)

Company Filing History:

goldMedal8 out of 55 
 
Sumika Fine Chemicals, Co.,ltd.
 patents
silverMedal4 out of 6,965 
 
Sumitomo Chemical Company, Limited
 patents
bronzeMedal1 out of 1 
 
Sumika Fire Chemicals Co., Ltd.
 patent

Years Active: 1995-2008

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13 patents (USPTO):Explore Patents
1. 7345170 - Crystal and solvate of 2-amino-6-benzyloxypurine and production methods thereof (2008-03-18),
2. 7321035 - Process for producing 2,6-dihalogenopurine (2008-01-22),
3. 7307167 - Production method of 2,6-dihalopurine (2007-12-11),
4. 6936713 - Process for producing 2,6-dihalogenopurine (2005-08-30),
5. 6455696 - Process for preparing 2,6-dichloropurine (2002-09-24),
6. 6342603 - Purine derivatives having cyclopropane ring (2002-01-29),
7. 6156892 - Purine derivatives having cyclopropane ring (2000-12-05),
8. 5994541 - Process for producing 2-amino-6-iodopurine (1999-11-30),
9. 5902899 - Process for preparing 1, 3-disubstituted urea (1999-05-11),
10. 5508446 - Method for producing alkyl 3-phthalidylideneacetate (1996-04-16),
11. 5440037 - Method for production of 2-amino-6-halogenopurine derivatives (1995-08-08),
12. 5391733 - Synthesis intermediates for 2-amino-6-halogenopurines (1995-02-21),
13. 5389637 - 2-formylamino-6-halogenopurine (1995-02-14),

Title: Taketo Hayashi: Pioneering Inventor Shaping Technological Advancements

Introduction:

Taketo Hayashi, a visionary inventor based in Osaka, JP, is renowned for his passion for innovation and relentless pursuit of excellence. His remarkable contributions have not only propelled advancements in technology but have also inspired future generations of inventors worldwide.

Latest Patents:

Among his 13 patents, Taketo Hayashi's latest inventions include the crystal and solvate of 2-amino-6-benzyloxypurine and production methods thereof. This innovative patent offers a novel approach to crystallization from specific solvents to obtain desired crystal forms. Another notable patent is the process for producing 2,6-dihalogenopurine, demonstrating his ability to efficiently prepare essential compounds.

Career Highlights:

Throughout his illustrious career, Taketo Hayashi has made significant strides in the field of chemical engineering and pharmaceuticals. His tenure at Sumika Fine Chemicals and Sumitomo Chemical Company has been marked by groundbreaking research and development in innovative processes and products.

Collaborations:

Taketo Hayashi's collaborations with esteemed colleagues such as Hiroharu Kumazawa and Takehiko Kawakami have been instrumental in the success of various projects. Their combined expertise and dedication have led to the creation of groundbreaking technologies and solutions.

Conclusion:

In conclusion, Taketo Hayashi's impact on the world of inventions and technological advancements is immeasurable. His dedication to innovation, coupled with his relentless pursuit of excellence, cements his legacy as a visionary inventor shaping the future of technology.

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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