Masashi Kawamura

This inventor holds 38 USPTO granted patents and 7 published patent applications and 5 EPO patents, primarily in Toner Technology. Top assignees: Canon Kabushiki Kaisha, Nec Corporation, Ps4 Luxco S.a.r.l.. Active years: 2002-2025.

USPTO Granted Patents = 38 (Patent Applications = 7)

% Patents Active = 65.8

EPO Patents = 5 (Patent Applications = 19)

Average Co-Inventor Count = 5.4

ph-index = 13

Forward Citations = 1,552(Granted Patents)

Location History:

Tokyo, JP (2002 - 2017)
Yokohama, JP (2014 - 2022)
Kanagawa, JP (2023)

Company Filing History:

32 out of 92,901

Canon Kabushiki Kaisha

where one patent can have more than one assignee

Years Active: 2002-2025

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Areas of Expertise:

Toner

Azo Compound

Pigment Composition

Pigment Dispersant

Electronic Wristwatch

Color Filter

Heat Sink

Semiconductor Module

Graphical User Interface

Ink

Alkoxysilyl Group

Bisazo Skeleton

38 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12449742 - Toner and method for manufacturing toner (2025-10-21),

2. 12346064 - Toner (2025-07-01),

3. 11714363 - Toner (2023-08-01),

4. 11274179 - Method for producing compound having amide bond and also having alkoxysilyl group (2022-03-15),

5. 11249412 - Toner (2022-02-15),

6. 11181845 - Toner (2021-11-23),

7. 10087328 - Compound having azo skeleton, pigment dispersant, pigment composition, pigment dispersion, and toner (2018-10-02),

8. 10054866 - Toner (2018-08-21),

9. 9926450 - Compound having azo skeleton structure, pigment-dispersing agent, pigment composition, pigment dispersion, and toner (2018-03-27),

10. 9921501 - Toner and process for producing toner (2018-03-20),

11. 9857711 - Toner (2018-01-02),

12. 9834683 - Compound having azo skeleton structure, pigment dispersant, pigment composition, pigment dispersion, and toner (2017-12-05),

13. 9829814 - Toner (2017-11-28),

14. D787548 - Display screen or portion thereof with animated graphical user interface (2017-05-23),

15. D787547 - Display screen or portion thereof with animated graphical user interface (2017-05-23),

Title: Masashi Kawamura - Pioneering Inventor from Yokohama

Introduction: Masashi Kawamura is a renowned inventor hailing from Yokohama, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Masashi Kawamura holds several patents in the areas of robotics, artificial intelligence, and sustainable energy solutions, showcasing his versatility and forward-thinking approach to invention.

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

Collaborations: Throughout his career, Masashi Kawamura has collaborated with top engineers, scientists, and designers from around the world, fostering a culture of innovation and creativity that has led to numerous successful projects and inventions.

Conclusion: Masashi Kawamura's passion for innovation, coupled with his relentless drive to push the boundaries of what is possible, cements his legacy as a true visionary in the world of inventions and technology.