Kenjiro Watanabe

This inventor holds 106 USPTO granted patents and 3 published patent applications, plus 6 CIPO patents and 17 EPO patents, primarily in Liquid Container Technology (CPC class D18 56). Top assignees: Canon Kabushiki Kaisha, Sony Corporation. Active years: 1984-2026.

USPTO Granted Patents = 106 (Patent Applications = 3)

% Patents Active = 75.5

CIPO Patents = 6

EPO Patents = 17 (Patent Applications = 5)

Average Co-Inventor Count = 3.0

ph-index = 27

Forward Citations = 2,002(Granted Patents)

Forward Citations (Not Self Cited) = 1,807(Dec 10, 2025)

Inventors with similar research interests:

🔬 See more inventors

Location History:

Shin, JP (1984 - 1986)
Hiratsuka, JP (1986 - 1989)
Atsugi, JP (1994 - 1996)
Ohta-ku, JP (2008 - 2012)
Tokyo, JP (1986 - 2015)

Company Filing History:

93 out of 92,750

Canon Kabushiki Kaisha

Years Active: 1984-2026

Loading Chart...

Areas of Expertise:

Liquid Container

Ink Jet Printing

Hologram Recording

Manufacturing Method

Signaling Module

Thermomechanical Actuator

Recording Apparatus

Optical Element

Liquid Supplying System

Print Head

Ink Tank

Circuit Board

106 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12709102 - LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS (2026-08-18),

2. 9090077 - Liquid container (2015-07-28),

3. 8840220 - Ink jet printing apparatus and ink tank (2014-09-23),

4. 8801162 - Liquid container and liquid supplying system (2014-08-12),

5. 8764171 - Liquid container (2014-07-01),

6. 8740361 - Liquid container, liquid supplying system and circuit board for liquid container (2014-06-03),

7. 8678570 - Liquid container and liquid supplying system (2014-03-25),

8. 8678569 - Liquid container and liquid supplying system (2014-03-25),

9. 8657396 - Ink jet printing apparatus (2014-02-25),

10. 8628179 - Liquid container and manufacturing method therefor (2014-01-14),

11. 8596770 - Liquid container and liquid supplying system (2013-12-03),

12. 8529034 - Liquid container and liquid supplying system (2013-09-10),

13. 8454141 - Liquid container and liquid supplying system (2013-06-04),

14. 8382267 - Liquid container, liquid supplying system and circuit board for liquid container (2013-02-26),

15. 8382265 - Liquid container and liquid supplying system (2013-02-26),

Title: Kenjiro Watanabe: Pioneering Inventor from Tokyo

Introduction: Kenjiro Watanabe is a renowned inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to various fields through his innovative creations.

Latest Patents: Kenjiro Watanabe holds several patents in the areas of robotics, artificial intelligence, and sustainable energy solutions, showcasing his continuous commitment to pushing the boundaries of technology.

Career Highlights: With a career spanning over two decades, Watanabe has worked with leading research institutions and universities, spearheading projects that have revolutionized industries and improved the quality of life for many.

Collaborations: Throughout his career, Kenjiro Watanabe has collaborated with top companies, fellow inventors, and patent attorneys to bring his ideas to life and ensure their successful implementation in the market.

Conclusion: Kenjiro Watanabe's passion for innovation and his relentless pursuit of excellence have solidified his position as a trailblazer in the world of inventions, inspiring future generations to think outside the box and create solutions that shape the world we live in.