Koji Katsuragi

This inventor holds 20 USPTO granted patents and 5 published patent applications and 8 EPO patents. Top assignee: Ricoh Company, Ltd.. Active years: 2013-2023.

USPTO Granted Patents = 20 (Patent Applications = 5)

% Patents Active = 95.0

EPO Patents = 8 (Patent Applications = 3)

Average Co-Inventor Count = 1.4

ph-index = 3

Forward Citations = 31(Granted Patents)

Location History:

Miyagi, JP (2013 - 2015)
Kanagawa, JP (2015 - 2023)

Company Filing History:

20 out of 28,934

Ricoh Company, Ltd.

patents

Years Active: 2013-2023

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20 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11701911 - Method of printing stealth white image, set of substrate and stealth ink, and printing device (2023-07-18),

2. 11560491 - Liquid composition, device for applying liquid composition, image forming device, and image forming method (2023-01-24),

3. 11104137 - Liquid discharging apparatus (2021-08-31),

4. 10947398 - White ink, printed matter, method of printing, and device for printing (2021-03-16),

5. 10851253 - Image forming method and image forming apparatus (2020-12-01),

6. 10647129 - Printing method and set of processing fluid and ink (2020-05-12),

7. 10596823 - Ink set, white ink, recording method, and ink discharging device (2020-03-24),

8. 10316205 - Recorded matter, ink for recorded matter, and ink (2019-06-11),

9. 10150880 - Ink set, printing method, and printing apparatus (2018-12-11),

10. 9803093 - White ink, ink set, and inkjet recording method (2017-10-31),

11. 9776424 - Image forming set, image forming apparatus, and image forming method (2017-10-03),

12. 9457606 - Treatment liquid, ink set, and inkjet recording method (2016-10-04),

13. 9365729 - Treatment liquid for treating recording medium, image forming method and image forming apparatus (2016-06-14),

14. 9272557 - Image forming method and image forming apparatus (2016-03-01),

15. 9211726 - Image forming method and image forming apparatus (2015-12-15),

Title: Innovations of Koji Katsuragi in Printing Technologies

Introduction

Koji Katsuragi, based in Kanagawa, Japan, is a prominent inventor known for his remarkable contributions to the field of printing technologies. With an impressive portfolio of 20 patents, his work focuses on enhancing visual appearance and functionality through innovative printing methods.

Latest Patents

Katsuragi's recent patents include a unique "Method of Printing Stealth White Image," which involves applying a specialized stealth ink composed of red and green coloring materials to create images that react to ultraviolet light. This method allows for the formation of a stealth white image on a substrate, ensuring it maintains a specific a* value and b* value under UV exposure. Another notable patent is related to a "Liquid Composition, Device for Applying Liquid Composition, Image Forming Device, and Image Forming Method," which details a liquid composition with inorganic particles and multivalent metal salts, designed to minimize tacking force on cast-coated paper during the heating process.

Career Highlights

Katsuragi is an integral part of Ricoh Company, Ltd., a recognized leader in imaging and printing solutions. His innovative approaches have significantly advanced the company's capabilities in producing high-quality printed materials, showcasing his commitment to research and development in the field.

Collaborations

Throughout his career, Koji Katsuragi has collaborated with fellow inventors Yukitaka Watarai and Atsufumi Hanazawa, contributing to a vibrant environment of creativity and innovation. Their teamwork has led to the development of cutting-edge solutions in printing technology.

Conclusion

Koji Katsuragi's extensive work in printing technologies has established him as a noteworthy inventor. His latest patents not only exemplify his ingenuity but also reflect his dedication to improving the field. With continued collaboration and innovation, Katsuragi is poised to make significant advancements in the industry.