Hyogo, Japan

Ryutaro Yasuhara

This inventor holds 5 USPTO granted patents and 1 published patent application. Top assignees: Nuvoton Technology Corporation Japan, Panasonic Corporation, Panasonic Holdings Corporation. Active years: 2014-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ryutaro Yasuhara. Retrieved from https://idiyas.com/inventor/ryutaro-yasuhara

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

USPTO Granted Patents = 5 

% Patents Active = 100.0

Average Co-Inventor Count = 2.5

ph-index = 1

Forward Citations = 7(Granted Patents)


Location History:

  • Osaka, JP (2014)
  • Hyogo, JP (2019 - 2024)

Company Filing History:


Years Active: 2014-2025

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5 patents (USPTO):Explore Patents

Title: Ryutaro Yasuhara: A Pioneer in Non-Volatile Memory Innovations

Introduction

Ryutaro Yasuhara, hailing from Hyogo, Japan, is a notable inventor with a focused expertise in variable resistance non-volatile memory technologies. With a remarkable portfolio of three patents, Yasuhara has significantly contributed to the field of memory devices through his innovative inventions.

Latest Patents

Among Yasuhara's most recent patents are two distinguished innovations: the variable resistance non-volatile memory element and the variable resistance non-volatile memory device utilizing this element. The former illustrates a sophisticated design featuring first and second electrodes, along with a variable resistance layer that can reversibly change its resistance based on an applied electrical signal. This layer consists of a dual structure incorporating an oxygen-deficient first metal oxide and a composite oxide, which has a different degree of oxygen deficiency. This intricate balance is essential for optimizing the resistance values at room temperature. The latter patent describes a non-volatile storage device equipped with a variable resistance element that operates based on a controlled voltage pulse, facilitated by a dedicated voltage pulse application circuit and a management control circuit to precisely read and adjust resistance states.

Career Highlights

Yasuhara's career has seen him thrive in prominent roles, notably within major companies such as Panasonic Corporation and Nuvoton Technology Corporation Japan. His experiences in these leading firms have equipped him with the skills and knowledge necessary to push the boundaries of memory technology.

Collaborations

Throughout his professional journey, Yasuhara has collaborated with esteemed colleagues, notably Takeki Ninomiya and Takeshi Takagi. These partnerships have fostered an environment of innovation and intellectual exchange, further enhancing the advancements in memory technology that Yasuhara is recognized for.

Conclusion

Ryutaro Yasuhara's innovative spirit and dedication to advancing non-volatile memory technology have led to significant contributions within the field. Through his groundbreaking patents and collaborative efforts, Yasuhara exemplifies the commitment to innovation that drives progress in technology. His work continues to inspire future generations of inventors in the realm of memory devices.

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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