logo

For the Inventor, By the Inventor

Tokyo, Japan

Nobuyuki Kuwabara

This inventor holds 72 USPTO granted patents and 5 published patent applications and 4 EPO patents, primarily in Ink Jet Printing (CPC class 347 ). Top assignee: Canon Kabushiki Kaisha. Active years: 1989-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuyuki Kuwabara. Retrieved from https://idiyas.com/inventor/nobuyuki-kuwabara

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

USPTO Granted Patents = 72 

% Patents Active = 77.8

 

Average Co-Inventor Count = 5.2

ph-index = 23

Forward Citations = 1,432(Granted Patents)

Forward Citations (Not Self Cited) = 1,383(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kawasaki, JP (1997 - 2004)
  • Hachioji, JP (2013 - 2019)
  • Tokyo, JP (1989 - 2024)

Company Filing History:

goldMedal72 out of 92,994 
 
Canon Kabushiki Kaisha
 patents

Years Active: 1989-2026

Loading Chart...
Loading Chart...
Areas of Expertise:
Ink Jet Printing
Liquid Supply System
Recording Apparatus
Ink Container
Ink Jet Cartridge
Liquid Ejection
Color Ink Jet
Printing Process
Textile Printing
Temperature Control
Ink Jet Head
Fluid Communicating Structure
72 patents (USPTO):Explore Patents
1. 12595491 - Compound introduction apparatus and compound introduction method (2026-04-07),
2. 12558902 - Liquid injection method, liquid injection device, and liquid cartridge (2026-02-24),
3. 11970003 - Liquid ejection apparatus, liquid ejection method, dispensing apparatus, and compound introduction apparatus (2024-04-30),
4. 10421270 - Transfer type ink jet recording method and transfer type ink jet recording apparatus (2019-09-24),
5. 9656459 - Ink jet recording method (2017-05-23),
6. 8616690 - Recording apparatus (2013-12-31),
7. 8491084 - Ink jet recording apparatus (2013-07-23),
8. 8382238 - Inkjet recording apparatus (2013-02-26),
9. 7607770 - Liquid supply system, fluid communicating structure, ink supply system, and inkjet recording head utilizing the fluid communicating structure (2009-10-27),
10. 7360876 - Liquid supply system, fluid communicating structure, ink supply system, and inkjet recording head utilizing the fluid communicating structure (2008-04-22),
11. 7185976 - Liquid supply system and apparatus incorporating the same (2007-03-06),
12. 7086725 - Liquid container and inkjet cartridge (2006-08-08),
13. 7004575 - Liquid container, liquid supplying apparatus, and recording apparatus (2006-02-28),
14. 6976753 - Liquid container and ink jet printing apparatus (2005-12-20),
15. 6969161 - Ink supply system, ink jet printing apparatus, ink container, ink refilling container and ink jet cartridge (2005-11-29),

Title: Innovations of Nobuyuki Kuwabara: A Impactful Legacy in Liquid Ejection Technologies

Introduction

Nobuyuki Kuwabara is a prominent inventor based in Tokyo, Japan, known for his significant contributions to liquid ejection technologies. With an impressive portfolio of 70 patents, Kuwabara has made notable advancements that address various challenges in the field of liquid dispensing and jet imaging.

Latest Patents

Among his latest patents are innovative devices and methods aimed at enhancing the efficiency and cleanliness of liquid ejection processes. These include a liquid ejection apparatus, a liquid ejection method, a dispensing apparatus, and a compound introduction apparatus. These inventions are designed to inhibit contamination of liquids after they are ejected. Specifically, the liquid ejection apparatus incorporates an ejection unit that employs the inkjet ejection principle, allowing for precise dispensing of liquids while maintaining a contamination-free environment. Furthermore, Kuwabara's work on the transfer type inkjet recording method and apparatus reveals careful control of temperatures during the heating and transfer processes, which are crucial for achieving high-quality outputs.

Career Highlights

Kuwabara's career is closely associated with Canon Kabushiki Kaisha, a leading company in imaging and optical products. His work has played a pivotal role in shaping Canon’s innovations in inkjet technology, showcasing his ability to merge engineering principles with practical application.

Collaborations

In his innovative journey, Kuwabara has collaborated with esteemed colleagues, including Masami Ikeda and Hiroyuki Ishinaga. Their teamwork has fostered a creative environment that led to groundbreaking developments in their respective fields. Together, they have contributed to advancements that enhance the performance of liquid ejection systems.

Conclusion

Nobuyuki Kuwabara’s contributions to liquid ejection technologies illustrate a commitment to innovation that aligns with the challenges of modern applications. His extensive patent portfolio not only highlights his expertise as an inventor but also his role in shaping the future of liquid dispensing solutions. With ongoing collaboration and creativity, Kuwabara continues to influence the field, leaving an indelible mark on technology and engineering.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Loading…