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For the Inventor, By the Inventor

Saitama, Japan

Etsuo Tobita

This inventor holds 15 USPTO granted patents and 2 published patent applications and 4 EPO patents, primarily in Polymer Chemistry. Top assignees: Adeka Corporation, Asahi Denka Co., Ltd., Asahi Denka Kogyo K.k.. Active years: 2002-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Etsuo Tobita. Retrieved from https://idiyas.com/inventor/etsuo-tobita

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

Calculating rank
USPTO Granted Patents = 15 

% Patents Active = 86.7

 

Average Co-Inventor Count = 3.7

ph-index = 5

Forward Citations = 64(Granted Patents)


Location History:

  • Urawa, JP (2002 - 2004)
  • Tokyo, JP (2012)
  • Saitama, JP (2006 - 2015)

Company Filing History:

goldMedal8 out of 457 
 
Adeka Corporation
 patents
silverMedal3 out of 11 
 
Asahi Denka Co., Ltd.
 patents
bronzeMedal3 out of 92 
 
Asahi Denka Kogyo K.k.
 patents
4. 1 out of 39,010 
 
Toyota Jidosha Kabushiki Kaisha
 patents
5. 1 out of 834,601 
Other
 patents
where one patent can have more than one assignee

Years Active: 2002-2015

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Areas of Expertise:
Weakly Basic Amines
Synthetic Resin
Thermal Recording Material
Polyester Resin
Polylactic Acid
Optical Film
Crystal Nucleator
Nucleating Agent
Ultraviolet Absorber
Granular Composite Additive
Polymeric Material
15 patents (USPTO):Explore Patents
1. 9133121 - Weakly basic hindered amines compounds having carbonate skeletons, synthetic resin compositions and coating compositions (2015-09-15),
2. 8329787 - Weakly basic hindered amines compounds having carbonate skeletons, synthetic resin compositions and coating compositions (2012-12-11),
3. 8154571 - Thermal recording material containing tris(2-Methyl-4-hydroxy-5-t-butylphenyl)butane (2012-04-10),
4. 8017678 - Polyester resin composition (2011-09-13),
5. 7910643 - Polylactic acid resin composition, moldings, and process for production thereof (2011-03-22),
6. 7842744 - Optical film (2010-11-30),
7. 7714046 - Process for producing crystal nucleator composition and crystalline polymer composition (2010-05-11),
8. 7662893 - Method for producing stabilized polymer (2010-02-16),
9. 7553892 - Optical film (2009-06-30),
10. 7442735 - Nucleating agent composition and crystalline polymer compositions containing the same (2008-10-28),
11. 7132499 - Polyester resin container with improved weatherability (2006-11-07),
12. 7125920 - Ultraviolet absorber for synthetic resin and synthetic resin composition containing the same (2006-10-24),
13. 7034102 - Polylactic acid resin composition and molded article thereof, and process of producing the molded article (2006-04-25),
14. 6787067 - Granular composite additive for polyolefin, process for producing the same, and polyolefin composition containing the same (2004-09-07),
15. 6500887 - Polymeric material composition (2002-12-31),

Title: The Innovative Journey of Etsuo Tobita

Introduction

Etsuo Tobita, an accomplished inventor based in Saitama, Japan, has made significant contributions to the field of chemical compositions. With a remarkable portfolio of 15 patents, his innovative works focus on weakly basic hindered amines and their applications in synthetic resins and coatings.

Latest Patents

Among his notable inventions are his latest patents which pertain to weakly basic hindered amines compounds characterized by carbonate skeletons. These compounds provide a stabilizing effect when added to synthetic resins or coating materials, enhancing their resistance to acid rain and chemicals. The hindered amines are represented by a specific general formula, which includes various alkyl or hydroxyalkyl groups, showcasing Tobita's attention to detail and expertise in chemical composition.

Career Highlights

Etsuo Tobita's career includes significant engagements with industry giants like Adeka Corporation and Asahi Denka Kogyo Co., Ltd. His work has not only advanced the technical capabilities within these organizations but has also enriched the overall field of material sciences.

Collaborations

Throughout his career, Tobita has collaborated with esteemed colleagues such as Takashi Ayabe and Yoshinori Negishi. These partnerships have enabled the cross-pollination of ideas and fostered innovation, which is evident in the advancements made in their joint endeavors.

Conclusion

Etsuo Tobita's contributions to the field of chemistry and materials science through his extensive patent portfolio illustrate his inventive spirit and commitment to innovation. His work not only benefits the companies he has been associated with but also has a lasting impact on the industry as a whole.

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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