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For the Inventor, By the Inventor

Kanagawa, Japan

Takahiro Ishizuka

This inventor holds 61 USPTO granted patents and 17 published patent applications and 19 EPO patents, primarily in Inkjet Technology (CPC class C09D). Top assignees: Fuji Xerox Co., Ltd., Fujifilm Corporation, Fuji Photo Film Company, Limited. Active years: 2000-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takahiro Ishizuka. Retrieved from https://idiyas.com/inventor/takahiro-ishizuka

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

USPTO Granted Patents = 61 

% Patents Active = 54.1

 

Average Co-Inventor Count = 3.1

ph-index = 6

Forward Citations = 105(Granted Patents)

Forward Citations (Not Self Cited) = 98(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kanagawa-ken, JP (2004)
  • Ashigarakami-gun, JP (2011 - 2012)
  • Minami-ashigara, JP (2000 - 2019)
  • Kanagawa, JP (2003 - 2024)

Company Filing History:

goldMedal17 out of 11,665 
 
Fuji Xerox Co., Ltd.
 patents
silverMedal17 out of 16,949 
 
Fujifilm Corporation
 patents
bronzeMedal15 out of 16,458 
 
Fuji Photo Film Company, Limited
 patents
4. 12 out of 2,403 
 
Fujifilm Business Innovation Corp.
 patents

Years Active: 2000-2026

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Areas of Expertise:
Aqueous Ink
Ink Composition
Image Forming Method
Toner Development
Composite Resin
Electrophotographic
Pressure Sensitive Adhesive
Liquid Developer
Ink Cartridge
Thermosetting Powder Coating
Polyimide Precursor
Cellulosic Particle
61 patents (USPTO):Explore Patents
1. 12680004 - Pressure sensitive adhesive, toner for developing electrostatic charge image, method for producing pressure sensitive adhesive, method for producing toner for developing electrostatic charge image, and bonded product (2026-07-14),
2. 12570847 - Method for producing composite resin particle dispersion, method for producing pressure-sensitive adhesive, method for producing pressure-responsive resin, method for producing toner for electrostatic charge image development, and composite resin particle dispersion (2026-03-10),
3. 12460054 - Cellulosic particle (2025-11-04),
4. 12359103 - Pressure sensitive adhesive particle and method of producing printed matter (2025-07-15),
5. 12325779 - Cellulosic particle (2025-06-10),
6. 12297339 - Method for producing liquid dispersion of composite resin particles, method for producing pressure-sensitive adhesive, method for producing pressure-responsive resin, method for producing toner for developing electrostatic charge image, and liquid dispersion of composite resin particles (2025-05-13),
7. 12247103 - Polyimide precursor solution, porous polyimide film, separator for secondary battery, and secondary battery (2025-03-11),
8. 12209210 - Method for producing composite resin particle dispersion, method for producing pressure-sensitive adhesive, method for producing pressure-responsive resin, method for producing toner for electrostatic charge image development, and composite resin particles (2025-01-28),
9. 12187861 - Cellulosic particle (2025-01-07),
10. 12065547 - Cellulosic particle (2024-08-20),
11. 11781044 - Method for producing composite resin particle dispersion, method for producing pressure-sensitive adhesive, method for producing pressure-responsive resin, method for producing toner for electrostatic charge image development, and composite resin particles (2023-10-10),
12. 11104538 - Method for producing printed material and system for producing printed material (2021-08-31),
13. 11036153 - Toner set, toner cartridge set, and apparatus for forming printed material (2021-06-15),
14. 11016404 - Electrophotographic photoreceptor, process cartridge, and image forming apparatus (2021-05-25),
15. 10604664 - Infrared absorbing particle dispersion, aqueous ink, and ink cartridge (2020-03-31),

Title: Spotlight on Inventor Takahiro Ishizuka

Introduction:

Takahiro Ishizuka, a prolific inventor based in Kanagawa, Japan, has made significant contributions to the field of material science with over 52 patents to his name. His innovative approach to research and development has led to groundbreaking inventions that have the potential to revolutionize various industries.

Latest Patents:

Ishizuka's latest patents showcase his expertise in creating advanced materials with unique properties. One notable invention is the cellulosic particle, which features a specialized coating layer containing a polyamine compound, wax, fatty acids, and amino acid compounds. This technology has applications in diverse sectors such as adhesives, resin production, and toner development.

Career Highlights:

During his career, Ishizuka has held key positions at renowned companies such as Fujifilm Corporation and Fuji Xerox Co., Ltd. His experience working in these leading organizations has provided him with invaluable insights into the practical applications of his inventions and has allowed him to collaborate with industry experts to bring his ideas to life.

Collaborations:

Ishizuka has had the privilege of collaborating with esteemed colleagues such as Terukazu Yanagi and Akio Tamura. Together, they have conducted research, shared knowledge, and worked tirelessly to push the boundaries of material science. These collaborations have been instrumental in enhancing the quality and impact of Ishizuka's inventions.

Conclusion:

Inventor Takahiro Ishizuka's relentless pursuit of innovation and his dedication to pushing the boundaries of material science have positioned him as a leading figure in the field. His impressive portfolio of patents and collaborations with industry peers underscore his commitment to driving technological advancements that have the potential to shape the future of various industries worldwide.

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]
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