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For the Inventor, By the Inventor

Kurashiki, Japan

Takafumi Izawa

This inventor holds 6 USPTO granted patents and 4 published patent applications and 1 EPO patent. Top assignee: Kuraray Co., Ltd.. Active years: 2020-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takafumi Izawa. Retrieved from https://idiyas.com/inventor/takafumi-izawa

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

USPTO Granted Patents = 6 

% Patents Active = 100.0

 

Average Co-Inventor Count = 3.7

ph-index = 1


Company Filing History:

goldMedal6 out of 1,872 
 
Kuraray Co., Ltd.
 patents

Years Active: 2020-2024

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6 patents (USPTO):Explore Patents
1. 12080890 - Carbonaceous material for negative electrode active material for non-aqueous electrolyte secondary batteries, non-aqueous electrolyte secondary battery negative electrode, non-aqueous electrolyte secondary battery, and production method of carbonaceous material (2024-09-03),
2. 11637286 - Carbonaceous material for negative electrode active material for non-aqueous electrolyte secondary batteries, non-aqueous electrolyte secondary battery negative electrode, non-aqueous electrolyte secondary battery, and production method of carbonaceous material (2023-04-25),
3. 11492260 - Carbonaceous material for negative electrode active material for non-aqueous electrolyte secondary batteries, non-aqueous electrolyte secondary battery negative electrode, non-aqueous electrolyte secondary battery, and production method of carbonaceous material (2022-11-08),
4. 11355755 - Carbonaceous material for non-aqueous electrolyte secondary battery, negative electrode for non-aqueous electrolyte secondary battery, and non-aqueous electrolyte (2022-06-07),
5. 11345601 - Carbonaceous material for negative pole active substance of nonaqueous electrolyte secondary battery, negative pole for nonaqueous electrolyte secondary battery, nonaqueous electrolyte secondary battery, and method for producing carbonaceous material (2022-05-31),
6. 10734650 - Carbonaceous material for non-aqueous electrolyte secondary battery, negative electrode for non-aqueous electrolyte secondary battery, non-aqueous electrolyte secondary battery, and method for producing carbonaceous material for non-aqueous electrolyte secondary battery (2020-08-04),

Title: Takafumi Izawa: Innovator in Carbonaceous Materials for Batteries

Introduction

Takafumi Izawa is a prominent inventor based in Kurashiki, Japan. He has made significant contributions to the field of battery technology, particularly in the development of carbonaceous materials for non-aqueous electrolyte secondary batteries. With a total of 6 patents to his name, Izawa's work is paving the way for advancements in energy storage solutions.

Latest Patents

Izawa's latest patents focus on carbonaceous materials suitable for negative electrode active materials in non-aqueous electrolyte secondary batteries. These innovations include a carbonaceous material that exhibits high charge and discharge capacities, as well as high charge/discharge efficiency and low resistance. His patents detail the specific characteristics of the carbonaceous material, including a nitrogen content of 3.5 mass % or more, a nitrogen to hydrogen content ratio of 6 to 100, and a carbon interplanar spacing observed by X-ray diffraction measurement of 3.70 Å or more. These advancements are crucial for improving the performance of lithium-ion, sodium-ion, lithium-sulfur, and lithium-air batteries.

Career Highlights

Izawa is currently employed at Kuraray Co., Ltd., where he continues to innovate in the field of battery materials. His work has garnered attention for its potential to enhance the efficiency and effectiveness of energy storage systems.

Collaborations

Some of his notable coworkers include Hideharu Iwasaki and Kengo Tachikawa, who contribute to the collaborative efforts in research and development at Kuraray Co., Ltd.

Conclusion

Takafumi Izawa's contributions to the field of battery technology through his innovative patents are significant. His work on carbonaceous materials is set to impact the future of energy storage solutions positively.

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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