Haruki Saitoh

This inventor holds 10 USPTO granted patents and 4 published patent applications and 3 EPO patents. Top assignees: Ricoh Company, Ltd., Tohoku Ricoh Co., Ltd.. Active years: 2010-2023.

USPTO Granted Patents = 10 (Patent Applications = 4)

% Patents Active = 60.0

EPO Patents = 3 (Patent Applications = 2)

Average Co-Inventor Count = 1.9

ph-index = 2

Forward Citations = 16(Granted Patents)

Location History:

Miyagi, JP (2010 - 2013)
Kanagawa, JP (2016 - 2023)

Company Filing History:

Tohoku Ricoh Co., Ltd.

patents

where one patent can have more than one assignee

Years Active: 2010-2023

Loading Chart...

10 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. 11130354 - Liquid discharge apparatus (2021-09-28),

3. 9586413 - Treatment-object modifying device, printing apparatus, printing system, and method of manufacturing print (2017-03-07),

4. 9387696 - Printing apparatus, printing system, and method for manufacturing printed material (2016-07-12),

5. 9352589 - Modification device, modification method, computer program product, image forming apparatus, and image forming system (2016-05-31),

6. 9308749 - Treatment target reforming device, printing apparatus, printing system, and printed material manufacturing method (2016-04-12),

7. 9242482 - pH detecting device, printing system, and method for manufacturing printed material (2016-01-26),

8. 8364065 - Image forming apparatus and image forming system (2013-01-29),

9. 8186823 - Inkjet recording method and inkjet recording apparatus (2012-05-29),

10. 7758178 - Ink fixing method, ink fixing apparatus, and printer (2010-07-20),

Title: Haruki Saitoh: Innovator in Stealth Printing Technology

Introduction

Haruki Saitoh is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of printing technology, particularly in the development of stealth ink and innovative printing methods. With a total of 10 patents to his name, Saitoh's work has garnered attention for its unique applications and advancements.

Latest Patents

Saitoh's latest patents include a method of printing a stealth white image, a set of substrate and stealth ink, and a printing device. The method involves applying a stealth ink that contains a red coloring material and a green coloring material, both of which emit visible light when exposed to ultraviolet radiation. This technique allows for the creation of a stealth white image on a substrate that contains a fluorescent brightener. The resulting image demonstrates specific colorimetric values according to the CIE 1976 L*a*b* colorimetric system. Additionally, he has developed a liquid discharge apparatus that includes a liquid discharge head and a window, enabling the formation of visually recognizable images on recording media.

Career Highlights

Throughout his career, Haruki Saitoh has worked with notable companies such as Ricoh Company, Ltd. and Tohoku Ricoh Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to cutting-edge technologies in the printing industry.

Collaborations

Saitoh has collaborated with talented individuals in his field, including Hijiri Ogata and Satoshi Katoh. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Haruki Saitoh's contributions to stealth printing technology highlight his innovative spirit and dedication to advancing the field. His patents reflect a commitment to creating unique solutions that push the boundaries of traditional printing methods.