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For the Inventor, By the Inventor

Osaka, Japan

Hirofumi Fujita

This inventor holds 25 USPTO granted patents and 1 published patent application, primarily in Organic Light-Emitting Devices. Top assignees: Joled Inc., Panasonic Corporation, Panasonic Intellectual Property Management Co., Ltd.. Active years: 2014-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirofumi Fujita. Retrieved from https://idiyas.com/inventor/hirofumi-fujita

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

USPTO Granted Patents = 25 

% Patents Active = 72.0

Average Co-Inventor Count = 5.0

ph-index = 4

Forward Citations = 41(Granted Patents)


Location History:

  • Ehime, JP (2014 - 2018)
  • Osaka, JP (2014 - 2021)

Company Filing History:

goldMedal11 out of 713 
 
Joled Inc.
 patents
silverMedal10 out of 16,454 
 
Panasonic Corporation
 patents
bronzeMedal4 out of 13,338 
 
Panasonic Intellectual Property Management Co., Ltd.
 patents

Years Active: 2014-2021

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Areas of Expertise:
Organic Light-Emitting Device
Electroluminescence Element
Display Device
Manufacturing Method
Light-Emitting Apparatus
Solar Secondary Cell
Liquid Treatment
Organic EL Panel
Hole Injection Layer
Organic EL Display
Mixed Hole Injection Layer
Electrode Connection
25 patents (USPTO):Explore Patents
1. 10894733 - Liquid treatment method and apparatus (2021-01-19),
2. 10472253 - Liquid treatment method and liquid treatment apparatus (2019-11-12),
3. 9923182 - Secondary cell, solar secondary cell, and methods of making those cells (2018-03-20),
4. 9663712 - Organic light-emitting device (2017-05-30),
5. 9660213 - Organic EL element and manufacturing method thereof, and metal oxide film forming method (2017-05-23),
6. 9490445 - Organic el element, organic el panel, organic el light-emitting apparatus, organic el display apparatus, and method of manufacturing organic el element (2016-11-08),
7. 9324964 - Organic light-emitting element with hole injection layer having concave portion (2016-04-26),
8. 9287520 - Organic EL element, organic EL panel having organic EL element, organic EL light-emitting apparatus, and organic EL display apparatus (2016-03-15),
9. 9130187 - Organic EL element, display device, and light-emitting device (2015-09-08),
10. 9112189 - Method for producing organic light-emitting element (2015-08-18),
11. 9065069 - Method for producing organic light-emitting element (2015-06-23),
12. 9059419 - Organic EL element, organic EL panel having organic EL element, organic EL light-emitting apparatus, and organic EL display apparatus (2015-06-16),
13. 9048448 - Organic electroluminescence element and method of manufacturing thereof (2015-06-02),
14. 9035293 - Organic el device including a mixed hole injection layer (2015-05-19),
15. 9029842 - Organic electroluminescence element and method of manufacturing thereof (2015-05-12),

Title: Hirofumi Fujita: Innovator in Liquid Treatment Technologies

Introduction

Hirofumi Fujita, an accomplished inventor based in Osaka, Japan, has made significant contributions to the field of liquid treatment technologies. With a remarkable portfolio of 25 patents, he demonstrates a strong commitment to developing innovative solutions for environmental challenges.

Latest Patents

Fujita's recent patents focus on advanced methods and apparatus for controlling liquid treatment processes. His notable inventions include:

1. **Liquid Treatment Method and Apparatus**: This patent describes a method for controlling a liquid treatment apparatus involving steps such as treating polluted liquid in a photocatalytic reaction tank, introducing a liquid mixture into a separation tank, and controlling flow rates with a circulation pump. The innovation aims to enhance the efficiency of liquid treatment and ensure that poorly treated liquids are not discharged externally.

2. **Liquid Treatment Method and Liquid Treatment Apparatus**: This disclosure provides a comprehensive design for a liquid treatment apparatus that incorporates a channel switch and a return channel for effective circulation of the liquid mixture. It emphasizes maintaining a specific concentration of photocatalyst particles to optimize the treatment process.

Career Highlights

Fujita has worked with renowned organizations, including Joled Inc. and Panasonic Corporation. His experiences in these companies have significantly influenced his innovative work and technical expertise in liquid treatment systems.

Collaborations

Throughout his career, Fujita has collaborated with talented colleagues such as Satoru Ohuchi and Shinya Fujimura. These partnerships have fostered a creative environment for innovation and have led to the successful development of various technologies in liquid treatment.

Conclusion

Hirofumi Fujita stands out in the field of liquid treatment technologies, showcasing a profound dedication to innovation. With his extensive patent portfolio and collaborative efforts, he continues to contribute to the advancement of environmentally friendly solutions. His work not only reflects personal achievement, but also demonstrates the impactful potential of innovative thinking in addressing contemporary environmental issues.

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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