Eiji Seki

This inventor holds 10 USPTO granted patents and 6 published patent applications, plus 2 CIPO patents and 7 EPO patents. Top assignees: Hitachi, Ltd., Nippon Thermostat Co., Ltd., Toto Ltd.. Active years: 2010-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Eiji Seki. Retrieved from https://idiyas.com/inventor/eiji-seki-ft1p3nv2

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

USPTO Granted Patents = 10 (Patent Applications = 6)

% Patents Active = 50.0

CIPO Patents = 2

EPO Patents = 7 (Patent Applications = 1)

Average Co-Inventor Count = 3.2

ph-index = 2

Forward Citations = 13(Granted Patents)

Location History:

Hitachi, JP (2012 - 2013)
Kiyose, JP (2010 - 2014)
Higashimurayama, JP (2014)
Tokyo, JP (2014 - 2019)

Company Filing History:

Nippon Thermostat Co., Ltd.

where one patent can have more than one assignee

Years Active: 2010-2019

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10347908 - Lithium ion secondary battery and manufacturing method of the lithium ion secondary battery (2019-07-09),

2. 9614221 - Lithium-ion secondary battery (2017-04-04),

3. 9543579 - Lithium ion secondary battery (2017-01-10),

4. 8870085 - Thermally actuated hot and cold water mixing valve configured to minimize valve hunting (2014-10-28),

5. 8757505 - Mixing faucet (2014-06-24),

6. 8746582 - Hot and cold water mixing valve (2014-06-10),

7. 8421418 - Charging/discharging control unit for lithium secondary battery (2013-04-16),

8. 8353462 - Thermally actuated hot and cold water mixing valve configured to minimize valve hunting (2013-01-15),

9. 8192871 - Lithium secondary battery and production method of the same (2012-06-05),

10. 7832650 - Hot water-water mixing faucet (2010-11-16),

Title: Eiji Seki: Innovator in Lithium-Ion Battery Technology

Introduction

Eiji Seki is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the field of lithium-ion battery technology. With a total of 10 patents to his name, Seki has made remarkable advancements that enhance the efficiency and safety of these essential energy storage devices.

Latest Patents

Among his latest patents, Seki has developed innovative methods for lithium-ion secondary batteries. One notable patent describes a lithium-ion secondary battery that includes a negative electrode with an active material composed of silicon or silicon compounds and carbon. The weight mixing ratio of these materials is carefully defined to optimize performance. Another patent focuses on a laminated electrode group that includes both positive and negative electrodes, designed to suppress short circuits during charging and discharging. These advancements are crucial for improving the reliability and longevity of lithium-ion batteries.

Career Highlights

Eiji Seki has worked with notable companies such as Nippon Thermostat Co., Ltd. and Hitachi, Ltd. His experience in these organizations has allowed him to refine his expertise in battery technology and contribute to groundbreaking innovations in the field.

Collaborations

Seki has collaborated with esteemed colleagues, including Isao Negishi and Kensaku Todaka. Their combined efforts have led to significant advancements in battery technology, further establishing Seki's reputation as a leading inventor in this domain.

Conclusion

Eiji Seki's contributions to lithium-ion battery technology have positioned him as a key figure in the industry. His innovative patents and collaborations continue to influence the development of more efficient and safer energy storage solutions.

Profile summary based on public USPTO records.