Masahiro Karasawa

This inventor holds 34 USPTO granted patents, plus 1 CIPO patent and 11 EPO patents, primarily in Liquid Container Technology. Top assignee: Seiko Epson Corporation. Active years: 2013-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiro Karasawa. Retrieved from https://idiyas.com/inventor/masahiro-karasawa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 34

% Patents Active = 88.2

CIPO Patents = 1

EPO Patents = 11 (Patent Applications = 14)

Average Co-Inventor Count = 2.6

ph-index = 6

Forward Citations = 134(Granted Patents)

Location History:

Nagano, JP (2014 - 2018)
Matsumoto, JP (2013 - 2024)

Company Filing History:

34 out of 34,238

Seiko Epson Corporation

patents

Years Active: 2013-2025

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Areas of Expertise:

Ink Pack

Liquid Container

Liquid Storage

Gas-Absorbing Apparatus

Printing Material Holding

Liquid Supply Unit

Cartridge

Liquid Detection System

Liquid Housing

Substrate Support Member

Liquid Holding Container

Liquid Ejecting Apparatus

34 patents (USPTO):Sort by Forward CitationsExplore Patents

1. D1103271 - Ink pack (2025-11-25),

2. 12459272 - Liquid container (2025-11-04),

3. 12377656 - Liquid storage and method of reusing adapter (2025-08-05),

4. 12304213 - Liquid container (2025-05-20),

5. 12017459 - Liquid container (2024-06-25),

6. D1016142 - Ink pack (2024-02-27),

7. 11541665 - Liquid storage container (2023-01-03),

8. 11052667 - Gas-absorbing apparatus, liquid housing, liquid housing container and liquid ejecting apparatus (2021-07-06),

9. 10434784 - Cartridge and connector (2019-10-08),

10. D825654 - Ink storage attachment (2018-08-14),

11. 10000334 - Liquid holding container (2018-06-19),

12. 9809034 - Liquid supply unit having filter (2017-11-07),

13. 9676197 - Liquid container (2017-06-13),

14. 9487014 - Printing material holding container (2016-11-08),

15. 9327511 - Liquid containing vessel, liquid containing body, substrate support member, and unit (2016-05-03),

Title: Masahiro Karasawa: Pioneering Inventor from Nagano

Introduction: Masahiro Karasawa is a renowned inventor hailing from Nagano, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Masahiro Karasawa holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous commitment to pushing the boundaries of technological advancement.

Career Highlights: With over two decades of experience in the industry, Masahiro Karasawa has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant technological breakthroughs.

Collaborations: Throughout his career, Masahiro Karasawa has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge sharing.

Conclusion: Masahiro Karasawa's passion for innovation and his relentless pursuit of technological excellence have solidified his reputation as a visionary inventor, inspiring the next generation of innovators to push the limits of what is possible in the world of technology.

Profile summary based on public USPTO records.