Kanagawa, Japan

Yoshiharu Hirakata

This inventor holds 446 USPTO granted patents and 54 published patent applications, primarily in Display Technology (CPC class H01L2251-5338). Top assignees: Semiconductor Energy Laboratory Co., Ltd., Sharp Kabushiki Kaisha Corporation, Semiconductor Energy Laboratory Co., Ltd.. Active years: 1998-2026.

USPTO Granted Patents = 446 

% Patents Active = 56.7

Average Co-Inventor Count = 2.3

ph-index = 39

Forward Citations = 5,996(Granted Patents)

Forward Citations (Not Self Cited) = 5,150(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Atsugi-Kanagawa, JP (2009)
  • Kanagawa-ken, JP (2002 - 2010)
  • Atsugi, JP (2004 - 2016)
  • Tochigi, JP (2018 - 2022)
  • Kanagawa, JP (1998 - 2024)
  • Ebina, JP (2013 - 2024)

Company Filing History:


Years Active: 1998-2026

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Areas of Expertise:
Light-Emitting Device
Display Device
Touch Panel
Foldable Display
Manufacturing Method
Electronic Device
Data Processor
Functional Panel
Curved Regions
Bendable Panel
Thin Glass Layer
Flexible Printed Circuit
446 patents (USPTO):Explore Patents

Title: Yoshiharu Hirakata - Innovations in Display Panels and Light-Emitting Devices

Introduction:

Yoshiharu Hirakata is an esteemed inventor and researcher hailing from Kanagawa, Japan. With an impressive patent count of 415 and a focus on display panels and light-emitting devices, Hirakata has made significant contributions to the field of technology. This article delves into his latest patents, career highlights, collaborations, and summarizes his remarkable achievements.

Latest Patents:

One of Yoshiharu Hirakata's recent patents involves a display panel, data processor, and a method for manufacturing the display panel. This innovative display panel offers enhanced convenience and reliability. Featuring a pixel and a terminal, the panel includes a first insulating film, a first contact portion, a pixel circuit, a second contact portion, a first display element, and a second display element. The novel configuration of the first insulating film and terminal ensures efficient functionality of the display panel.

Another noteworthy patent from Hirakata involves a light-emitting device with a flexible printed circuit. This device addresses the issue of fragility by providing enhanced resistance against breakage. The device includes an element layer, a substrate, and a light-emitting element. The substrate, which has a light-transmitting property and a higher refractive index than air, covers a portion of the element layer. This unique design offers a more durable and reliable light-emitting device.

Career Highlights:

Yoshiharu Hirakata has made substantial contributions throughout his career, primarily working with Semiconductor Energy Laboratory Co., Ltd. and Sharp Kabushiki Kaisha Corporation. His expertise in the development of display panels and light-emitting devices has propelled advancements in the technology sector. Hirakata's inventions have not only improved the functionality and reliability of these devices but also fostered advancements in the field of visual displays and lighting solutions.

Collaborations:

Throughout his career, Yoshiharu Hirakata has collaborated with numerous talented individuals. Notably, he has worked alongside Shunpei Yamazaki, a renowned inventor and the founder of Semiconductor Energy Laboratory Co., Ltd. Their collaborative efforts have resulted in groundbreaking innovations in the field of display technology. Additionally, Hirakata has worked with Jun Koyama, another prominent researcher who has made remarkable contributions to the advancement of electronic devices.

Conclusion:

Yoshiharu Hirakata's patents in the realm of display panels and light-emitting devices have introduced novel concepts and practical solutions. His inventive designs have not only improved the convenience and reliability of these technologies but also pushed the boundaries of what is possible in the field. With a prolific patent portfolio and a remarkable career, Hirakata's contributions have played a pivotal role in shaping the future of visual displays and lighting solutions.

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