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Toyo Ink Manufacturing Company

USPTO Granted Patents = 223

EPO Patents = 6

Trademarks = 2

Forward Citations = 2,632

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371 inventors (with patents filed for the assignee):

Toshio Enokida (14 out of 15 patents)

Michiko Tamano (13 out of 14 patents)

Michichika Hikosaka (13 out of 13 patents)

4. Mikio Hayashi (9 out of 29 patents)

5. Sunao Satake (9 out of 9 patents)

6. Satoshi Okutsu (8 out of 10 patents)

7. Tsutomu Fujigamori (8 out of 8 patents)

8. Yasuharu Iida (8 out of 8 patents)

9. Akimitsu Mochizuki (7 out of 11 patents)

10. Junichi Tsuchida (7 out of 10 patents)

11. Hitoshi Maki (7 out of 10 patents)

12. Toshikazu Onikubo (7 out of 7 patents)

13. Miki Kawashima (7 out of 8 patents)

14. Koji Hanada (7 out of 7 patents)

15. Takayuki Kimura (7 out of 12 patents)

Core Competencies:

Inkjet Ink

Pressure Sensitive Adhesive

Electrostatic Image Developer

Light Emitting Material

Pigment Composition

Electron Beam Irradiation

Aqueous Emulsion

Organoelectroluminescence Device

Curable Resin Composition

Colorant Resin Composition

Water-Based Ink

223 patents: Sort by Forward Citations

1. 8344047 - Dispersing agent, and pigment composition, pigment-dispersed product and inkjet ink prepared therefrom (2013-01-01),

2. 8247068 - Coating material for forming gas-barrier layer and gas-barrier multilayer body (2012-08-21),

3. 7160960 - Pressure sensitive adhesive composition and sheet, and adhered article (2007-01-09),

4. 7151132 - Pressure sensitive adhesive composition and sheet (2006-12-19),

5. 7141344 - Electrostatic image developer and image-forming process (2006-11-28),

6. 6998439 - Resin composition, sheet obtained therefrom, process for producing sheet, and formed object (2006-02-14),

7. 6930315 - Method and apparatus for irradiation of active energy beam (2005-08-16),

8. 6858366 - Toner for electrostatic development, charge controlling agent for the toner and process for producing the same (2005-02-22),

9. 6756170 - Electrostatic image developing toner and image-forming method using the same (2004-06-29),

10. 6727508 - Method and apparatus for irradiating active energy ray (2004-04-27),

11. 6692559 - Pigment yellow 74 and printing ink composition (2004-02-17),

12. 6515158 - Toner for developing electrostatic latent image, charge control agent for use in the toner, and process for preparing the charge control agent (2003-02-04),

13. 6504163 - Electron beam irradiation process and an object irradiated with an electron beam (2003-01-07),

14. 6447900 - Pressure-sensitive adhesive (2002-09-10),

15. 6280859 - Light-emitting material for organo-electroluminescence device and for organic electroluminescence device which the material is applied (2001-08-28),

Toyo Ink Manufacturing Company is a global provider of high-quality printing inks and related materials. With a rich history dating back to 1896, we have become a trusted name in the industry. We offer a wide range of products, including offset inks, gravure inks, flexographic inks, and UV inks, among others. Our innovative and sustainable solutions cater to various sectors such as packaging, publishing, commercial printing, and more. Toyo Ink is committed to delivering exceptional value to our customers through continuous research, development, and customer-centric approaches.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

223 Patents

#282 in Tokyo

#634 in Japan

#3,708 in the World

Toyo Ink Manufacturing Company

Forward Citations = 2,632

371 inventors:

Toshio Enokida (14 out of 15 patents)

Michiko Tamano (13 out of 14 patents)

Michichika Hikosaka (13 out of 13 patents)

4. Mikio Hayashi (9 out of 29 patents)

5. Sunao Satake (9 out of 9 patents)

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