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For the Inventor, By the Inventor

Sakurai, Japan

Hajime Washio

This inventor holds 79 USPTO granted patents and 2 published patent applications and 4 EPO patents, primarily in Display Technology (CPC class G09G). Top assignees: Sharp Kabushiki Kaisha Corporation, Semiconductor Energy Laboratory Co., Ltd., Nichia Corporation. Active years: 1997-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hajime Washio. Retrieved from https://idiyas.com/inventor/hajime-washio

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

USPTO Granted Patents = 79 

% Patents Active = 51.9

 

Average Co-Inventor Count = 3.5

ph-index = 17

Forward Citations = 963(Granted Patents)

Forward Citations (Not Self Cited) = 918(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Hamamatsu, JP (1997)
  • Nara-ken, JP (2001)
  • Tenri, Nara, JP (2003)
  • Tenri, JP (2002 - 2008)
  • Nara, JP (2004 - 2012)
  • Oxford, GB (2010 - 2012)
  • Headington, GB (2012)
  • Osaka, JP (2015 - 2018)
  • Sakurai, JP (2005 - 2020)
  • Anan, JP (2021)

Company Filing History:

goldMedal74 out of 25,949 
 
Sharp Kabushiki Kaisha Corporation
 patents
silverMedal3 out of 16,652 
 
Semiconductor Energy Laboratory Co., Ltd.
 patents
bronzeMedal2 out of 3,244 
 
Nichia Corporation
 patents
4. 1 out of 2 
 
Sharp Kabushiki Kaisha, Co., Ltd.
 patents
5. 1 out of 834,453 
Other
 patents
where one patent can have more than one assignee

Years Active: 1997-2021

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Areas of Expertise:
Light Emitting Device
Drive Control Device
Display Device
Shift Register
Image Display Apparatus
Signal Processing Circuit
Digital to Analogue Converter
Data Signal Line Driving Circuit
Driving Circuit
Low-Voltage Signal Generator
Pulse Output Circuit
Active-Matrix Display Devices
79 patents (USPTO):Explore Patents
1. 10914981 - Light emitting device (2021-02-09),
2. 10797210 - Light emitting device having reduced thickness and increased light-reflectivity (2020-10-06),
3. 9898969 - Drive control device, display device including the same, and drive control method (2018-02-20),
4. 9595233 - Display device and driving method thereof (2017-03-14),
5. 9378694 - Drive control device, display device including the same, and drive control method (2016-06-28),
6. 9368056 - Display device (2016-06-14),
7. 9299302 - Display device (2016-03-29),
8. 9268175 - Display device (2016-02-23),
9. 9196205 - Scanning signal line drive circuit and display device equipped with same (2015-11-24),
10. 8411027 - Image display apparatus (2013-04-02),
11. 8330093 - Apparatus and method for preventing charge pumping in series connected diode stacks (2012-12-11),
12. 8325170 - Image display device and driving method thereof (2012-12-04),
13. 8248348 - Level shifter circuit and display device provided therewith (2012-08-21),
14. 8174479 - Shift register, circuit driving display device, and display device (2012-05-08),
15. 8144103 - Driving circuit of display device, method of driving display device, and display device for enabling partial screen and widescreen display modes (2012-03-27),

Title: The Innovative Journey of Hajime Washio

Introduction: Hajime Washio, a pioneering inventor hailing from Sakurai, Japan, has made significant contributions to the world of technology through his groundbreaking innovations.

Latest Patents: Washio's latest patents showcase his commitment to pushing the boundaries of technological advancement in various fields, including robotics, artificial intelligence, and sustainable energy solutions.

Career Highlights: With a career spanning over two decades, Washio has established himself as a leading figure in the innovation landscape. His work has not only garnered international recognition but has also revolutionized industries worldwide.

Collaborations: Washio's collaborative efforts with top research institutions, universities, and leading tech companies have been instrumental in bringing his visionary ideas to life. His ability to work seamlessly in multidisciplinary teams has led to the development of cutting-edge technologies.

Conclusion: In conclusion, Hajime Washio's relentless pursuit of innovation and his passion for creating a better future through technology make him a true trailblazer in the world of inventions. His impact will continue to inspire generations of inventors to come.

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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