Fumio Nakazawa

This inventor holds 58 USPTO granted patents and 5 published patent applications, plus 1 CIPO patent and 16 EPO patents, primarily in Inkjet Technology. Top assignee: Brother Kogyo Kabushiki-Kaisha. Active years: 2010-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Fumio Nakazawa. Retrieved from https://idiyas.com/inventor/fumio-nakazawa

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

USPTO Granted Patents = 58 (Patent Applications = 5)

% Patents Active = 87.9

CIPO Patents = 1

EPO Patents = 16 (Patent Applications = 12)

Average Co-Inventor Count = 3.4

ph-index = 3

Forward Citations = 28(Granted Patents)

Forward Citations (Not Self Cited) = 21(Dec 10, 2025)

Location History:

Okazaki, JP (2010 - 2024)
Kazaki, JP (2024)

Company Filing History:

57 out of 17,897

Brother Kogyo Kabushiki-Kaisha

patents

where one patent can have more than one assignee

Years Active: 2010-2026

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Areas of Expertise:

Liquid Cartridge

Inkjet Device

Liquid Discharge

Replenishable Tank

Printing-Fluid Cartridge

Liquid Supplying Apparatus

Backpressure Application

Image-Forming Apparatus

Valve Control

Leakage Reduction

Air Communication

Guide Member

58 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12668065 - Liquid ejecting device and liquid reservoir to increase volume ratio of stored liquid (2026-06-30),

2. 12661894 - Liquid discharging apparatus (2026-06-23),

3. 12533888 - Liquid cartridge capable of reducing leakage of liquid from liquid storage chamber (2026-01-27),

4. 12521987 - Liquid discharge apparatus (2026-01-13),

5. 12427776 - Liquid supplying apparatus (2025-09-30),

6. 12319067 - Liquid discharging apparatus (2025-06-03),

7. 12214597 - Inkjet recording device maintaining valve at closing position to close air communication opening formed in ink storage portion during execution of printing process (2025-02-04),

8. 12214596 - Liquid discharging apparatus (2025-02-04),

9. 12202271 - Liquid discharging apparatus (2025-01-21),

10. 12160553 - Printing device, and non-transitory computer-readable recording medium therefor (2024-12-03),

11. 12138922 - Liquid ejection device (2024-11-12),

12. 12077000 - Liquid discharging apparatus (2024-09-03),

13. 12076981 - Inkjet recording device including guide member whose portion is aligned with and at the same height as storage body (2024-09-03),

14. 12017451 - Inkjet recording device including controller controlling valve to close air communication opening formed in ink storage portion in case of occurrence of abnormality (2024-06-25),

15. 11912040 - Replenishable liquid storage tank including backpressure application member, and image-forming apparatus provided with the same (2024-02-27),

Title: Innovations by Fumio Nakazawa in Inkjet Technology

Introduction

Fumio Nakazawa, located in Okazaki, Japan, is a prolific inventor with a remarkable portfolio of 52 patents. His inventive work primarily focuses on advancements in inkjet technology, demonstrating a strong commitment to innovation within this field.

Latest Patents

Among Nakazawa's most significant recent patents is an innovative inkjet recording device designed to maintain a valve in a closing position during the printing process. This device incorporates a head configured to eject ink, a support member for the head, a storage portion for the ink, and a valve controlled by an actuator. The feature that distinguishes this invention is its ability to prevent air communication during ink ejection, optimizing the printing process.

Another noteworthy invention is a liquid discharging apparatus that includes a head with a nozzle to discharge liquid. This apparatus has a storing part positioned above the nozzle's opening, ensuring the liquid is efficiently managed while forming a liquid surface. The valve unit in this invention switches between communication states to facilitate optimal liquid discharge based on power source conditions.

Career Highlights

Fumio Nakazawa works for Brother Kogyo Kabushiki-kaisha, a well-known company in the imaging and printing industry. His contributions to the field have resulted in numerous enhancements in inkjet technology, positioning the company as a leader in innovative printing solutions.

Collaborations

Throughout his career, Nakazawa has collaborated with talented individuals like Kosuke Nukui and Akihito Ono. These collaborations have led to breakthroughs in his research and development efforts, fostering an environment of creative problem-solving and innovation.

Conclusion

Fumio Nakazawa's extensive patent portfolio is a testament to his innovative spirit and expertise in inkjet technology. His latest inventions reflect a deep understanding of the intricacies involved in liquid discharging apparatuses, contributing significantly to the advancement of printing technologies. As he continues to work with Brother Kogyo Kabushiki-kaisha and his coworkers, Nakazawa is poised to drive further innovations in the field.

Profile summary based on public USPTO records.