Hirokatsu Ito

This inventor holds 73 USPTO granted patents and 20 published patent applications and 15 EPO patents, primarily in Organic Electroluminescence (CPC class H01L). Top assignees: Idemitsu Kosan Company, Limited, Idemitsu Kosan., Ltd.. Active years: 2014-2026.

USPTO Granted Patents = 73 (Patent Applications = 20)

% Patents Active = 89.0

EPO Patents = 15 (Patent Applications = 25)

Average Co-Inventor Count = 3.8

ph-index = 6

Forward Citations = 246(Granted Patents)

Forward Citations (Not Self Cited) = 217(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Ichihira, JP (2018)
Chiba, JP (2017 - 2019)
Sodegaura, JP (2014 - 2024)
Ichihara, JP (2017 - 2024)

Company Filing History:

71 out of 2,283

Idemitsu Kosan Company, Limited

patents

2 out of 80

Idemitsu Kosan., Ltd.

patents

Years Active: 2014-2026

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Areas of Expertise:

Organic Electroluminescent Element

Organic Electroluminescence Device

Electronic Device

Compound

Material

Aromatic Amine Derivative

Pyrene Derivative

Dibenzofuran

Naphthalene Structures

Oxygen-Containing Fused Ring

Sulfur-Containing Fused Ring

73 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12709604 - COMPOUND, MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, ORGANIC ELECTROLUMINESCENT ELEMENT, AND ELECTRONIC DEVICE (2026-08-18),

2. 12643849 - Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device (2026-06-02),

3. 12590076 - Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic device (2026-03-31),

4. RE50748 - Organic electroluminescence device (2026-01-06),

5. 12492162 - Organic electroluminescent element and electronic device (2025-12-09),

6. 12464943 - Compound and organic electroluminescent element using same (2025-11-04),

7. 12384739 - Compound, material for organic electroluminescent elements, organic electroluminescent element and electronic device (2025-08-12),

8. 12338234 - Compound, material for organic electroluminescence device, organic electroluminescence device, and electronic device (2025-06-24),

9. 12069943 - Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device (2024-08-20),

10. 12048242 - Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device (2024-07-23),

11. 12022728 - Organic electroluminescent element and electronic device (2024-06-25),

12. 11939279 - Compound, material for organic electroluminescent elements, organic electroluminescent element and electronic device (2024-03-26),

13. 11744149 - Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device (2023-08-29),

14. 11730054 - Compound having dibenzofuran and naphthalene structures, and organic electroluminescent element using same (2023-08-15),

15. 11678569 - Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device (2023-06-13),

Title: The Innovative Journey of Hirokatsu Ito

Introduction: Hirokatsu Ito, a pioneering inventor hailing from Sodegaura, Japan, has made significant contributions to the world of innovations with his groundbreaking ideas and inventions.

Latest Patents: Hirokatsu Ito's latest patents showcase his continuous dedication to pushing the boundaries of technology and creativity, with a focus on improving everyday life through his inventions.

Career Highlights: Throughout his illustrious career, Hirokatsu Ito has been recognized for his inventive spirit and has received numerous accolades for his groundbreaking inventions that have revolutionized various industries.

Collaborations: Hirokatsu Ito has collaborated with leading research institutions, universities, and innovative companies to bring his ideas to life, showcasing his ability to work effectively in multidisciplinary teams to drive innovation forward.

Conclusion: Hirokatsu Ito's passion for innovation and his relentless drive to create have solidified his position as a trailblazing inventor, inspiring future generations to think outside the box and pursue their inventive dreams.