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For the Inventor, By the Inventor

Minamiashigara, Japan

Kiyokazu Hashimoto

This inventor holds 72 USPTO granted patents and 5 published patent applications and 2 EPO patents, primarily in Polyester Film Technology (CPC class 3652). Top assignees: Nec Corporation, Fujifilm Corporation, Fuji Photo Film Company, Limited. Active years: 1987-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kiyokazu Hashimoto. Retrieved from https://idiyas.com/inventor/kiyokazu-hashimoto

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 = 72.2

 

Average Co-Inventor Count = 1.4

ph-index = 14

Forward Citations = 606(Granted Patents)

Forward Citations (Not Self Cited) = 589(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Tokyo, JP (1987 - 2002)
  • Odawara, JP (2004)
  • Minami-ashigara, JP (2000 - 2012)
  • Ashigarakami-gun, JP (2014)
  • Fujinomiya, JP (2016)
  • Shizuoka, JP (2017 - 2020)
  • Kanagawa, JP (1994 - 2022)

Company Filing History:

goldMedal28 out of 36,684 
 
Nec Corporation
 patents
silverMedal21 out of 16,949 
 
Fujifilm Corporation
 patents
bronzeMedal16 out of 16,458 
 
Fuji Photo Film Company, Limited
 patents
4. 6 out of 2,467 
 
Nec Electronics Corporation
 patents
5. 1 out of 1 
 
Fuji Photo Film Photo, Co., Ltd.
 patent

Years Active: 1987-2022

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Areas of Expertise:
Polyester Film
Solar Cell Module
Cellulose Acylate Film
Transparent Conductive Film
Nonvolatile Memory
Optical Compensating Film
Liquid Crystal Display
Photographic Material
Thermoplastic Film
Method of Production
Heat Treatment
Biaxially Stretched Film
72 patents (USPTO):Explore Patents
1. 11435276 - Medium evaluation method, medium, and culture method (2022-09-06),
2. 10684710 - Transparent conductive film and touch panel (2020-06-16),
3. 10228782 - Transparent conductive film and touch panel (2019-03-12),
4. 9831376 - Polyester film and method for producing the same, back sheet for solar cell, and solar cell module (2017-11-28),
5. 9660119 - Polyester film, method for producing the same, back sheet for solar cell, and solar cell module (2017-05-23),
6. 9368664 - Biaxially stretched polyester film for protecting back surface of solar cell, and method for producing polyester resin (2016-06-14),
7. 9306083 - Method of producing polyester film, polyester film, and back sheet for solar cell (2016-04-05),
8. 8642715 - Polyester film and method for producing same, backsheet for solar cell, and solar cell module (2014-02-04),
9. 8518523 - Polyester film, method for manufacturing the same, and solar cell module (2013-08-27),
10. 8247041 - Cellulose acylate film (2012-08-21),
11. 8197726 - Cellulose acylate film and method for producing same (2012-06-12),
12. 8153044 - Heat treatment of thermoplastic film, and thermoplastic film and method for producing the same (2012-04-10),
13. 8043714 - Transparent thermoplastic film and a method of producing the same (2011-10-25),
14. 8040468 - Liquid crystal display device (2011-10-18),
15. 7981994 - Method for producing cellulose acylate resin film (2011-07-19),

Title: The Innovative Journey of Kiyokazu Hashimoto

Introduction: Kiyokazu Hashimoto, a pioneering inventor hailing from Minami-ashigara, Japan, has made significant contributions to the world of technology through his groundbreaking inventions.

Latest Patents: Hashimoto's latest patents include a cutting-edge robotics system for industrial automation, a revolutionary medical device for non-invasive diagnostics, and a sustainable energy solution utilizing advanced materials.

Career Highlights: With a career spanning over two decades, Hashimoto has established himself as a leading figure in the field of innovation. His work has been recognized globally, earning him prestigious awards and accolades.

Collaborations: Throughout his career, Hashimoto has collaborated with top research institutions, leading universities, and innovative companies to further develop and commercialize his inventions. His collaborative spirit has led to the successful implementation of cutting-edge technologies in various industries.

Conclusion: Kiyokazu Hashimoto's relentless pursuit of innovation and his passion for creating solutions to complex challenges have solidified his position as a visionary inventor. His impact on the world of technology is profound, and his legacy will continue to inspire future generations of inventors.

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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