Hiroshi Koshikawa

This inventor holds 74 USPTO granted patents and 4 published patent applications and 5 EPO patents, primarily in Liquid Ejection Technology (CPC class B41J). Top assignees: Canon Kabushiki Kaisha, Kyoraku Co., Ltd.. Active years: 2001-2026.

USPTO Granted Patents = 74 (Patent Applications = 4)

% Patents Active = 86.5

EPO Patents = 5 (Patent Applications = 1)

Average Co-Inventor Count = 4.8

ph-index = 29

Forward Citations = 1,806(Granted Patents)

Forward Citations (Not Self Cited) = 1,321(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Kawaski, JP (2003)
Kawasaki, JP (2001 - 2006)
Tokyo, JP (2018 - 2021)
Yokohama, JP (2004 - 2022)
Kanagawa, JP (2002 - 2023)
Kanagawa-ken, JP (2002 - 2023)

Company Filing History:

72 out of 92,842

Canon Kabushiki Kaisha

where one patent can have more than one assignee

Years Active: 2001-2026

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Areas of Expertise:

Liquid Ejection Apparatus

Ink Cartridge

Liquid Storage Container

Liquid Supply System

Ink Bottle

Nozzle Cap

Liquid Reservoir

Fiber Aggregate

Manufacturing Method

Printing Apparatus

Capillary Force

Valve Unit

74 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12729034 - Storage container for liquid cartridge (2026-09-08),

2. 12358298 - Liquid ejection apparatus (2025-07-15),

3. 12145378 - Liquid ejection apparatus (2024-11-19),

4. 12145377 - Liquid ejection apparatus (2024-11-19),

5. 12115795 - Liquid supply apparatus, liquid storage tank, and liquid ejecting apparatus (2024-10-15),

6. 11660873 - Liquid ejection apparatus (2023-05-30),

7. D982073 - Ink bottle for refilling printer cartridges (2023-03-28),

8. 11472191 - Liquid supply apparatus, liquid storage tank, and liquid ejecting apparatus (2022-10-18),

9. 11383519 - Liquid storage bottle and method of manufacturing the same (2022-07-12),

10. 11273648 - Liquid storage bottle and method for manufacturing the same (2022-03-15),

11. D936141 - Nozzle for ink bottle for refilling printer cartridges (2021-11-16),

12. D936140 - Cap for ink bottle for refilling printer cartridges (2021-11-16),

13. 11111061 - Liquid storage bottle (2021-09-07),

14. 11090944 - Liquid storage bottle (2021-08-17),

15. D925647 - Ink bottle for refilling printer cartridges (2021-07-20),

Title: The Innovative Journey of Inventor Hiroshi Koshikawa

Introduction: Hiroshi Koshikawa, a pioneering inventor hailing from Yokohama, Japan, has made significant contributions to the world of technology through his groundbreaking innovations.

Latest Patents: Hiroshi Koshikawa holds several patents in the field of robotics and artificial intelligence, with his most recent inventions focusing on advanced human-robot interactions and autonomous systems.

Career Highlights: Throughout his illustrious career, Hiroshi Koshikawa has been at the forefront of cutting-edge technological advancements, working tirelessly to push the boundaries of what is possible in the realm of robotics. His innovative spirit and dedication to his craft have earned him recognition as a leading figure in the industry.

Collaborations: Hiroshi Koshikawa has collaborated with top research institutions and universities around the world, fostering a culture of innovation and knowledge-sharing. His partnerships have led to the development of groundbreaking technologies that have the potential to revolutionize various industries.

Conclusion: In conclusion, Hiroshi Koshikawa's passion for innovation and his relentless pursuit of excellence have solidified his reputation as a visionary inventor. His contributions to the field of robotics continue to inspire future generations of inventors and shape the technological landscape for years to come.