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Yokohama, Japan

Dnp Fine Chemicals Co., Ltd.

USPTO Granted Patents = 19

EPO Patents = 17

Forward Citations = 13

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44 inventors (with patents filed for the assignee):

Fumie Yamazaki (10 out of 15 patents)

Naoki Shiraishi (8 out of 16 patents)

Yukio Sugita (8 out of 34 patents)

4. Kisei Matsumoto (7 out of 8 patents)

5. Keishiro Yoshimori (5 out of 5 patents)

6. Kentaro Otomo (4 out of 4 patents)

7. Yoshiya Maegawa (4 out of 4 patents)

8. Masaki Inumaru (4 out of 4 patents)

9. Yukiko Ishima (4 out of 4 patents)

10. Mitsuyoshi Tamura (4 out of 12 patents)

11. Karuna Iwasawa (3 out of 3 patents)

12. Yuka Orikasa (3 out of 3 patents)

13. Koujun Utaka (3 out of 3 patents)

14. Takao Otomaru (2 out of 3 patents)

15. Satoshi Shioda (2 out of 13 patents)

19 patents: Sort by Forward Citations

1. 12473448 - Recording method, and ink composition used in recording method (2025-11-18),

2. 12435234 - Ink composition (2025-10-07),

3. 12338356 - Nonaqueous ink composition, and recording method and recorded matter manufacturing method using same (2025-06-24),

4. 12104068 - Non-aqueous ink composition, inkjet recording method, and method for manufacturing printed matter (2024-10-01),

5. 11898044 - Ink composition (2024-02-13),

6. 11104821 - Receptive solution, ink set containing said receptive solution and method for producing printed material using ink set (2021-08-31),

7. 10875340 - Receiving solution, ink set containing this receiving solution, and method for producing printed material with use of ink set (2020-12-29),

8. 10563081 - Ink composition for ink-jet recording, ink-set for ink-jet recording, ink cartridge, and method for producing printing (2020-02-18),

9. 10253196 - Inkjet recording ink composition, method for producing the same, and inkjet recording method (2019-04-09),

10. 10072164 - Active energy ray-curable inkjet ink composition and printed product (2018-09-11),

11. 9944810 - Ink composition and ink jet recording method using same (2018-04-17),

12. 9815991 - Ink composition for inkjet recording, method for producing printed material, and printing method (2017-11-14),

13. 9745482 - Inkjet recording ink composition, inkjet recording method, and method for producing printed material (2017-08-29),

14. 9487665 - Pigment dispersion liquid for inkjet ink, active energy ray-curable inkjet ink composition, and printed product (2016-11-08),

15. 9430071 - Resin composition, and transparent membrane for touch panel sensors and touch panel using same (2016-08-30),

DNP Fine Chemicals Co., Ltd. is a leading chemical manufacturing company based in Japan. We specialize in the production and supply of high-quality fine chemicals used in various industries such as pharmaceuticals, electronics, and cosmetics. With a strong focus on research and development, we strive to provide innovative solutions to meet our customers' diverse needs. Visit our website for more information about our products, services, and commitment to sustainability.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

19 Patents

#44 in Yokohama

#2,972 in Japan

#31,731 in the World

Yokohama, Japan

Dnp Fine Chemicals Co., Ltd.

Forward Citations = 13

44 inventors:

Fumie Yamazaki (10 out of 15 patents)

Naoki Shiraishi (8 out of 16 patents)

Yukio Sugita (8 out of 34 patents)

4. Kisei Matsumoto (7 out of 8 patents)

5. Keishiro Yoshimori (5 out of 5 patents)

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