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Kawaguchi, Japan

Japan Science and Technology Agency

USPTO Granted Patents = 1,310

CIPO Patents = 52

EPO Patents = 559

Trademarks = 9

Forward Citations = 17,981

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2,695 inventors (with patents filed for the assignee):

Hideo Hosono (49 out of 93 patents)

Shuji Nakamura (35 out of 223 patents)

Steven P DenBaars (33 out of 205 patents)

4. James Stephen Speck (29 out of 131 patents)

5. Shu Kobayashi (24 out of 45 patents)

6. Benjamin A Haskell (20 out of 32 patents)

7. Satoshi Sugahara (19 out of 37 patents)

8. Masahiro Hirano (18 out of 35 patents)

9. Toshiharu Yokoyama (17 out of 43 patents)

10. Takao Someya (16 out of 35 patents)

11. Kazunori Kataoka (15 out of 77 patents)

12. Susumu Noda (15 out of 86 patents)

13. Masaaki Kitano (15 out of 23 patents)

14. Yoshitake Toda (14 out of 17 patents)

15. Michikazu Hara (14 out of 27 patents)

Core Competencies:

Electronic Circuit

Light-Driven Fuel Cell

Ammonia Synthesis Catalyst

Fluorogenic Nucleic Acid Molecule

Quantum Gate Device

Thermoelectric Conversion Device

Superconducting Quantum Computing Circuit

Photoelectric Conversion Element

Microalgae Utilization

Organic Electroluminescence Element

Bistable Circuit

Surface-Modified Carbon Material

1,310 patents: Sort by Forward Citations

1. 12492331 - Composite material including COF, heat dissipation/storage member, and method for producing said composite material, and COF single crystal and production method therefor (2025-12-09),

2. 12476623 - Electronic circuit (2025-11-18),

3. 12474239 - Method for rendering tissue transparent, reagent for rendering tissue transparent, and tissue observation method (2025-11-18),

4. 12473657 - Light-driven fuel cell, cathode catalyst for same, anode catalyst for same, and methanol production method comprising converting methane into methanol (2025-11-18),

5. 12454766 - Electrode catalyst and method for producing amine compound (2025-10-28),

6. 12453103 - Three-dimensional array device (2025-10-21),

7. 12448637 - Primer, device for producing double-stranded DNA using primer, and method for producing double-stranded DNA using primer (2025-10-21),

8. 12448408 - Method for producing capped RNA (2025-10-21),

9. 12378131 - Composite oxide, metal-supported material, and ammonia synthesis catalyst (2025-08-05),

10. 12371752 - Method and kit for detecting influenza virus, and method for diagnosing influenza virus infection (2025-07-29),

11. 12371730 - Fluorogenic nucleic acid molecule and target RNA fluorescent labeling method (2025-07-29),

12. 12371336 - Layered double hydroxide electride and method for producing same (2025-07-29),

13. 12371329 - Heteroelement-containing graphene (2025-07-29),

14. 12359254 - Primer, device for producing double-stranded DNA using primer, and method for producing double-stranded DNA using primer (2025-07-15),

15. 12351469 - Oxynitride hydride, supported metal material containing oxynitride hydride, and catalyst for ammonia synthesis (2025-07-08),

Japan Science and Technology Agency (JST) is a national research and development agency in Japan. It aims to promote the advancement of science and technology in Japan by funding and support schemes for research projects. JST also actively collaborates with various organizations and institutions, both national and international, to foster scientific and technological advancements.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

1,310 Patents

#1 in Kawaguchi

#165 in Japan

#735 in the World

Kawaguchi, Japan

Japan Science and Technology Agency

Forward Citations = 17,981

2,695 inventors:

Hideo Hosono (49 out of 93 patents)

Shuji Nakamura (35 out of 223 patents)

Steven P DenBaars (33 out of 205 patents)

4. James Stephen Speck (29 out of 131 patents)

5. Shu Kobayashi (24 out of 45 patents)

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