Yasuto Sakai

This inventor holds 60 USPTO granted patents, plus 3 CIPO patents and 11 EPO patents, primarily in Ink Cartridge Technology (CPC class 1802). Top assignees: Seiko Epson Corporation, Silicon Valley Bank. Active years: 2002-2012.

USPTO Granted Patents = 60

% Patents Active = 43.3

CIPO Patents = 3

EPO Patents = 11 (Patent Applications = 3)

Average Co-Inventor Count = 4.6

ph-index = 18

Forward Citations = 887(Granted Patents)

Forward Citations (Not Self Cited) = 819(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Shiojiri, JP (2005)
Fukai-ken, JP (2006)
Suwa, JP (2002 - 2007)
Fukui-ken, JP (2006 - 2007)
Nagano, JP (2004 - 2010)
Nagano-ken, JP (2006 - 2012)

Company Filing History:

59 out of 34,209

Seiko Epson Corporation

Years Active: 2002-2012

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Areas of Expertise:

Ink Cartridge

Liquid Container

Ink Jet Recording

Printing Apparatus

Liquid Ejection

Filling Methods

Leak Control

Memory Structure

Positioning Structure

Manufacturing Methods

Information Communicating Member

60 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8123343 - Printing apparatus and ink cartridge therefor (2012-02-28),

2. 8113639 - Liquid container with structure for controlling leaked liquid (2012-02-14),

3. 8057026 - Liquid container with structure for controlling leaked liquid (2011-11-15),

4. 8042909 - Ink cartridge attachment/detachment device, recording apparatus, liquid ejection apparatus, and liquid container (2011-10-25),

5. 8011772 - Liquid container (2011-09-06),

6. 7934822 - Ink cartridge (2011-05-03),

7. 7934816 - Method of filling liquid into liquid containing member, liquid filling apparatus and method of inspecting liquid containing member (2011-05-03),

8. 7934794 - Ink cartridge (2011-05-03),

9. 7815298 - Ink cartridge for ink jet recording device (2010-10-19),

10. 7802877 - Ink cartridge and recording apparatus (2010-09-28),

11. 7784930 - Ink cartridge for ink jet recording device (2010-08-31),

12. 7748835 - Ink-jet recording device and ink cartridge (2010-07-06),

13. 7699452 - Ink cartridge and method of ink injection thereinto (2010-04-20),

14. 7686441 - Ink cartridge and recording apparatus (2010-03-30),

15. 7669993 - Ink cartridge and recording apparatus (2010-03-02),

Title: The Innovative Mind of Yasuto Sakai

Introduction: Yasuto Sakai, a visionary inventor hailing from Nagano, Japan, is renowned for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Yasuto Sakai holds several patents in the realm of robotics and artificial intelligence, showcasing his dedication to pushing the boundaries of what is possible in these fields.

Career Highlights: With a career spanning over two decades, Yasuto Sakai has worked tirelessly to develop cutting-edge technologies that have revolutionized industries worldwide. His keen eye for detail and passion for innovation have led to the creation of numerous groundbreaking inventions.

Collaborations: Throughout his career, Yasuto Sakai has collaborated with leading research institutions, universities, and tech companies to further his research and bring his inventions to life. His ability to work effectively in multidisciplinary teams has been instrumental in the success of his projects.

Conclusion: Yasuto Sakai's relentless pursuit of innovation and his unwavering commitment to excellence have solidified his reputation as a trailblazer in the world of technology. His contributions continue to inspire future generations of inventors and shape the landscape of technological advancement.