Kanagawa, Japan

Masahiko Hayakawa

This inventor holds 192 USPTO granted patents and 10 published patent applications and 3 EPO patents, primarily in Semiconductor Devices (CPC class H01L29-7869). Top assignee: Semiconductor Energy Laboratory Co., Ltd.. Active years: 1998-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiko Hayakawa. Retrieved from https://idiyas.com/inventor/masahiko-hayakawa

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

USPTO Granted Patents = 192 

% Patents Active = 49.0


Average Co-Inventor Count = 3.9

ph-index = 34

Forward Citations = 3,736(Granted Patents)

Forward Citations (Not Self Cited) = 3,223(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Kanagawa-ken, JP (2012)
  • Kanagawa, JP (1998 - 2021)
  • Atsugi, JP (2005 - 2023)
  • Tochigi, JP (2016 - 2023)

Company Filing History:


Years Active: 1998-2025

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Areas of Expertise:
Semiconductor Device
Display Device
Light Emitting Device
Manufacturing Method
Production System
Liquid Crystal Display
Electronic Device
Semiconductor Element
Sequential Circuit
Display Module
Semiconductor Production
Display Technologies
192 patents (USPTO):Explore Patents

Title: Masahiko Hayakawa: Advancing Semiconductor Technologies through Innovation

Introduction:

Masahiko Hayakawa, a prominent figure in the field of semiconductor technology, has made significant contributions to the industry through his numerous patents and inventions. Hailing from Kanagawa, Japan, Hayakawa continues to push the boundaries of what is possible in this ever-evolving field. This article delves into his latest patents, career highlights, and collaborations, highlighting his profound impact on the semiconductor industry.

Latest Patents:

One of Hayakawa's recent patents is the development of a semiconductor device designed to suppress changes in electrical characteristics and improve reliability. This innovation involves a transistor that incorporates an oxide semiconductor. The device includes a gate electrode, an oxide semiconductor film, a gate insulating film, a protective film, and a pair of electrodes in contact with the oxide semiconductor film. Notably, the patent focuses on ensuring a higher amount of gas with a mass-to-charge ratio m/z of 17 is released during heat treatment compared to nitrogen oxide, ultimately enhancing the device's performance and longevity.

Another noteworthy invention by Hayakawa is an energy-efficient display device designed to reduce power consumption. Through a simple structure and operation, this invention controls the input of image signals to a driver circuit based on an image operation signal output from an input device. By reducing the frequency of image signal input when the input device is not operational, display degradation and unnecessary power consumption during periods of inactivity are effectively minimized.

Career Highlights:

Masahiko Hayakawa is a valuable member of the Semiconductor Energy Laboratory Co., Ltd. (SEL) in Kanagawa, Japan, where he continues to make groundbreaking advancements. At SEL, he has been instrumental in driving innovation and contributing to the company's success in the semiconductor field. Hayakawa's vast experience and in-depth knowledge have enabled him to secure an impressive portfolio of 188 patents, showcasing his dedication to pushing the boundaries of technological possibilities.

Collaborations:

Hayakawa has had the privilege of collaborating with esteemed colleagues throughout his career. Notably, he has worked alongside renowned inventors such as Shunpei Yamazaki and Mitsuaki Osame. Collaborations of this nature have fostered an environment of knowledge exchange, catalyzing innovation and helping to bring revolutionary semiconductor technologies to life.

Conclusion:

Masahiko Hayakawa's relentless pursuit of innovation and his remarkable contributions to the field of semiconductor technology have gained him international recognition. Through his patents and inventions, he has propelled advancements in semiconductor devices, enhancing their reliability, power efficiency, and overall performance. As Hayakawa continues to push boundaries and collaborate with other brilliant minds, we can expect even greater breakthroughs that will shape the future of the semiconductor industry.

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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