Tokyo, Japan

Tatsuya Tooyama

This inventor holds 2 USPTO granted patents and 2 published patent applications and 1 EPO patent. Top assignees: Hitachi Metals, Ltd., Proterial, Ltd.. Active years: 2020-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuya Tooyama. Retrieved from https://idiyas.com/inventor/tatsuya-tooyama

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

USPTO Granted Patents = 2 

% Patents Active = 100.0

 

Average Co-Inventor Count = 6.0

ph-index = 1


Company Filing History:


Years Active: 2020-2023

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2 patents (USPTO):Explore Patents

Title: Tatsuya Tooyama: Innovator in Lithium Ion Battery Technology

Introduction

Tatsuya Tooyama is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of lithium ion battery technology. With a total of 2 patents, Tooyama's work focuses on enhancing the performance and efficiency of battery materials.

Latest Patents

Tooyama's latest patents include a method for producing positive electrode active material for lithium ion secondary batteries. This innovative method involves weighing and mixing lithium carbonate with metallic compounds to create a lithium composite compound. The process includes multiple heat treatment steps to ensure optimal performance. Another notable patent is for a cathode active material used in lithium ion secondary batteries, which boasts a high discharge capacity and minimal increase in internal resistance during charge/discharge cycles.

Career Highlights

Throughout his career, Tatsuya Tooyama has worked with notable companies such as Proterial, Ltd. and Hitachi Metals, Ltd. His expertise in battery technology has positioned him as a key figure in the industry.

Collaborations

Tooyama has collaborated with esteemed colleagues, including Hisato Tokoro and Takashi Nakabayashi. Their combined efforts have contributed to advancements in battery technology.

Conclusion

Tatsuya Tooyama's innovative work in lithium ion battery technology has made a lasting impact on the industry. His patents reflect a commitment to improving battery performance and efficiency.

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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