Kanagawa, Japan

Ryota Tajima

This inventor holds 127 USPTO granted patents and 31 published patent applications and 1 EPO patent, primarily in Battery Technology (CPC class H01M2220-30). Top assignees: Semiconductor Energy Laboratory Co., Ltd., Semiconductor Energy Laboratory Co., Ltd.. Active years: 2010-2026.

USPTO Granted Patents = 127 

% Patents Active = 72.4


Average Co-Inventor Count = 2.9

ph-index = 10

Forward Citations = 300(Granted Patents)

Forward Citations (Not Self Cited) = 203(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Atsugi, JP (2010 - 2016)
  • Kanagawa, JP (2011 - 2024)
  • Isehara, JP (2013 - 2024)

Company Filing History:


Years Active: 2010-2026

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Areas of Expertise:
Solid-State Battery
Power Storage Device
Battery Module
Anomaly Detection
Electronic Device
Charging-Control Device
Manufacturing Method
Secondary Battery
Semiconductor Device
Display Device
Power Supply Device
Neural Network
127 patents (USPTO):Explore Patents

Title: The Genius Behind Semiconductor Innovations: Ryota Tajima

Introduction:

Ryota Tajima, a prolific inventor based in Kanagawa, Japan, has been making waves in the semiconductor industry with his groundbreaking patents and cutting-edge technologies. With an impressive portfolio of 107 patents to his name, Tajima is at the forefront of revolutionizing semiconductor devices for enhanced safety and performance.

Latest Patents:

Among his latest patents is a revolutionary semiconductor device designed to prevent the deterioration of secondary batteries. This device incorporates a sophisticated system comprising a secondary battery module, a sensor for temperature measurement, and a first circuit with a variable resistor. Tajima's invention ensures optimal charging voltage, temperature monitoring, and controlled discharge to safeguard the secondary battery's longevity.

Another notable patent by Tajima is the secondary battery protection circuit and anomaly detection system, which aims to detect early signs of anomalies in secondary batteries, such as micro short circuits. This innovative circuit includes memory circuits, a comparison circuit, and a power-off switch to ensure user safety by warning or stopping the battery's use in case of potential hazards.

Career Highlights:

Ryota Tajima is an esteemed member of the Semiconductor Energy Laboratory Co., Ltd., a leading company in the semiconductor industry known for its cutting-edge research and development. Tajima's expertise and innovative spirit have contributed significantly to the company's success in driving technological advancements in semiconductor devices.

Collaborations:

Throughout his career, Tajima has collaborated with notable coworkers such as Minoru Takahashi and Kazutaka Kuriki. Together, they have synergized their skills and knowledge to push the boundaries of semiconductor technology and bring innovative solutions to the market.

Conclusion:

In conclusion, Ryota Tajima stands out as a pioneering figure in the semiconductor industry, with a remarkable track record of patents and inventions that have redefined safety and performance standards in semiconductor devices. His dedication to innovation and collaboration underscores his commitment to driving technological advancements that benefit society as a whole.

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