This inventor holds 5 USPTO granted patents. Top assignees: Mitsubishi Chemical Corporation, Aesc Japan Ltd., Mitsubishi Kasei Corporation. Active years: 1993-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Sagamihara, JP (1993 - 1996)
- Kagawa, JP (1999 - 2000)
Company Filing History:
3 out of 2,423 
1 out of 27 
1 out of 499 Years Active: 1993-2025
Title: Kenji Watanabe: Innovator in Lithium Secondary Cell Technology
Introduction
Kenji Watanabe, a prominent inventor based in Sagamihara, Japan, has made significant contributions to the field of lithium secondary cell technology. With a total of four patents to his name, he has focused on enhancing the performance and longevity of battery systems through innovative methods and materials.
Latest Patents
Watanabe's latest patents revolve around the development of lithium secondary cells that utilize carbon materials treated with fluorinating agents. One of his notable inventions describes a secondary cell utilizing a carbon material that has substantially no C-F covalent bonds. This advancement aims to provide an improved cell life for lithium secondary batteries. Additionally, another of his patents addresses the challenge of casing expansion during charging by applying carbon materials with a minimal amount of extractable fluorine, set at a maximum of 0.05 wt%. This innovation facilitates the use of lithium-containing carbon materials, significantly enhancing battery safety and performance.
Career Highlights
Throughout his career, Kenji Watanabe has worked with leading corporations, including Mitsubishi Chemical Corporation and Mitsubishi Kasei Corporation. His expertise in battery technology and material science has been instrumental in advancing the capabilities of lithium batteries, positioning him as a key figure in the industry.
Collaborations
Watanabe has collaborated with notable colleagues such as Iwao Yamamoto and Yuukichi Kobayashi. These partnerships have fostered innovative research and development within the field, further highlighting the importance of teamwork in achieving groundbreaking advancements in technology.
Conclusion
In conclusion, Kenji Watanabe stands out as an influential inventor in the realm of lithium secondary cells. His groundbreaking patents reflect a commitment to improving battery technology and safety, which is essential for the future of energy storage solutions. His work not only showcases his ingenuity but also contributes to the ongoing evolution of sustainable energy technologies.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile