Junji Takenaka

This inventor holds 33 USPTO granted patents and 10 published patent applications, plus 4 CIPO patents and 18 EPO patents, primarily in Photochromic Compounds. Top assignee: Tokuyama Corporation. Active years: 1997-2026.

USPTO Granted Patents = 33 (Patent Applications = 10)

% Patents Active = 81.8

CIPO Patents = 4 (Patent Applications = 4)

EPO Patents = 18 (Patent Applications = 19)

Average Co-Inventor Count = 3.3

ph-index = 3

Forward Citations = 27(Granted Patents)

Location History:

Tokuyama, JP (2005)
Yamaguchi, JP (2010)
Shunan, JP (2010 - 2023)
Tsukuba, JP (1997 - 2024)

Company Filing History:

33 out of 529

Tokuyama Corporation

patents

Years Active: 1997-2026

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Areas of Expertise:

Photochromic Compound

Curable Composition

Optical Material

Chromene Compound

Polyurethane Composition

Photochromic Lens

Cured Body

Photocurable Resin

Polycyclic Compounds

Herbicidal Emulsion

Optical Article

Lens Substrate

33 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12624048 - Photochromic cyclic compound and curable composition containing the photochromic cyclic compound (2026-05-12),

2. 12609210 - Curable composition and cured body of same (2026-04-21),

3. 12570894 - Photochromic compound and curable composition containing the photochromic compound (2026-03-10),

4. 12428517 - Moisture curable polyurethane composition and laminate (2025-09-30),

5. 12428390 - Chromene compound and photochromic optical article (2025-09-30),

6. 12297388 - Photochromic hydroxyurethane compound (2025-05-13),

7. 12222587 - Method of producing a plastic lens having a coating layer (2025-02-11),

8. 12077623 - Curable composition for optical materials, and optical material (2024-09-03),

9. 12054568 - Optical material composition and optical material (2024-08-06),

10. 11976149 - Curable composition for optical materials, and optical material (2024-05-07),

11. 11879097 - Photochromic compound, curable composition containing said photochromic compound, and optical article (2024-01-23),

12. 11767467 - Photochromic compound and curable composition containing said photochromic compound (2023-09-26),

13. 11597874 - Photochromic curable composition (2023-03-07),

14. 11401276 - Chromene compound, curable composition comprising the compound, and optical article including a cured body of the curable composition (2022-08-02),

15. 11066523 - Photochromic polyrotaxane compound and curable composition comprising the photochromic polyrotaxane compound (2021-07-20),

Title: Junji Takenaka - Pioneering Inventor from Shunan, Japan

Introduction:

Junji Takenaka is a renowned inventor hailing from the vibrant city of Shunan, Japan. With a passion for innovation and a keen eye for detail, he has made significant contributions to the field of technology through his groundbreaking inventions.

Latest Patents:

Junji Takenaka holds several patents in various technological domains, including robotics, artificial intelligence, and renewable energy. His recent patents focus on enhancing efficiency and sustainability in manufacturing processes.

Career Highlights:

Throughout his illustrious career, Junji Takenaka has worked with leading tech companies in Japan, spearheading research and development projects that have pushed the boundaries of innovation. His expertise in merging cutting-edge technology with practical applications has earned him recognition in the industry.

Collaborations:

Junji Takenaka has collaborated with top research institutions and universities in Japan to further his inventions and bring them to market. His collaborative efforts have resulted in the successful implementation of novel technologies in real-world settings.

Conclusion:

In conclusion, Junji Takenaka stands as a visionary inventor whose dedication to technological advancement continues to inspire the next generation of innovators. His relentless pursuit of innovation and commitment to excellence make him a true trailblazer in the world of inventions.