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For the Inventor, By the Inventor

Fukushima, Japan

Hideyuki Otsuka

This inventor holds 17 USPTO granted patents and 6 published patent applications and 12 EPO patents, primarily in Electrophotography Materials. Top assignees: Hodogaya Chemical Co., Ltd., Kyushu University, Sumitomo Riko Company Limited. Active years: 2005-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hideyuki Otsuka. Retrieved from https://idiyas.com/inventor/hideyuki-otsuka

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

Calculating rank
USPTO Granted Patents = 17 

% Patents Active = 64.7

 

Average Co-Inventor Count = 5.1

ph-index = 4

Forward Citations = 37(Granted Patents)


Location History:

  • Fukuoka, JP (2014)
  • Fukushima, JP (2006 - 2015)
  • Koriyama, JP (2008 - 2015)
  • Kanagawa, JP (2018)
  • Ibaraki, JP (2005 - 2019)
  • Tokyo, JP (2008 - 2023)

Company Filing History:

goldMedal11 out of 328 
 
Hodogaya Chemical Co., Ltd.
 patents
silverMedal4 out of 455 
 
Kyushu University
 patents
bronzeMedal3 out of 374 
 
Sumitomo Riko Company Limited
 patents
4. 2 out of 457 
 
Adeka Corporation
 patents
5. 1 out of 3,680 
 
Kao Corporation
 patents
6. 1 out of 16 
 
Nippon Aerosil Co., Ltd.
 patents
7. 1 out of 592 
 
Tokyo Institute of Technology
 patents
where one patent can have more than one assignee

Years Active: 2005-2023

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Areas of Expertise:
Self-Healing Material
Surface Coating Agent
Charge Control Agent
Polymer Nanocomposite
Electrophotographic Printing
Toner Composition
Reactive Ionic Liquid
Ion-Immobilized Elastomer
Flame-Retardant Polymer
Mixed Cyclic Phenol Sulfides
Transducer
Electrostatic Charge Image
17 patents (USPTO):Explore Patents
1. 11667609 - Compound, composition containing said compound, self-healing material, surface coating agent, paint, adhesive, material for battery and cured product (2023-06-06),
2. 10474050 - Toner and charge control agent using pyrazolone derivative or salt of derivative (2019-11-12),
3. 9954162 - Reactive ionic liquid, and ion-immobilized metal oxide particle, ion-immobilized elastomer, and transducer using same (2018-04-24),
4. 9550865 - Reactive ionic liquid, and ion-immobilized metal oxide particle, ion-immobilized elastomer, and transducer using same (2017-01-24),
5. 9212263 - Reactive ionic liquid, and ion-immobilized metal oxide particle, ion-immobilized elastomer, and transducer using same (2015-12-15),
6. 9141014 - Toner for developing electrostatic charge image (2015-09-22),
7. 9056884 - Process for producing a charge control agent (2015-06-16),
8. 8962866 - Surface-modified silica powder and method for producing the same, as well as toner composition for electrophotography (2015-02-24),
9. 8742044 - Method for producing polymer nanocomposite, and flame-retardant polymer nanocomposite formed by the production method (2014-06-03),
10. 8580470 - Charge control agent composition and toner utilizing the same (2013-11-12),
11. 7901858 - Mixed cyclic phenol sulfides, and charge control agents and toners using the same (2011-03-08),
12. 7820832 - Oxidized mixed cyclic phenol sulfides, and charge control agents and toners using the same (2010-10-26),
13. 7709172 - Oxidized mixed cyclic phenol sulfides, and charge control agents and toners using the same (2010-05-04),
14. 7402369 - Mono azo iron complex compound, and charge controlling agent and toner using the same (2008-07-22),
15. 7382894 - Method for automatic identification of a hair region (2008-06-03),

Title: Innovations and Contributions of Inventor Hideyuki Otsuka

Introduction

Hideyuki Otsuka is a prominent inventor based in Fukushima, Japan. He has made significant contributions to the field of materials science, holding a total of 17 patents. His work focuses on developing innovative compounds and materials that have practical applications in various industries.

Latest Patents

Otsuka's latest patents include a range of advanced materials. One notable invention is a compound and composition that includes a self-healing material, surface coating agent, paint, adhesive, and material for batteries. This compound is represented by a specific general formula, where various groups and atoms are defined to enhance its properties. Another significant patent involves a toner and charge control agent using a pyrazolone derivative. This invention aims to provide a charge control agent for polymerized toners, particularly for color toners, which boasts a large charge amount and environmentally stable charging characteristics.

Career Highlights

Throughout his career, Hideyuki Otsuka has worked with notable organizations, including Hodogaya Chemical Co., Ltd. and Kyushu University. His experience in these institutions has allowed him to develop and refine his innovative ideas, contributing to advancements in material science.

Collaborations

Otsuka has collaborated with several professionals in his field, including Masaki Okubo and Masami Ito. These collaborations have likely enriched his research and led to the development of groundbreaking technologies.

Conclusion

Hideyuki Otsuka's contributions to the field of materials science through his numerous patents demonstrate his innovative spirit and dedication to advancing technology. His work continues to influence various industries, showcasing the importance of research and development in creating new materials.

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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