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For the Inventor, By the Inventor

Kariya, Japan

Kazuhito Kawasumi

This inventor holds 12 USPTO granted patents and 5 published patent applications. Top assignees: Kabushiki Kaisha Toyota Jidoshokki, National Institute of Advanced Industrial Science and Technology, Kabushiki Kaisha Toyoda Jidoshokki Seisakusho. Active years: 1998-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuhito Kawasumi. Retrieved from https://idiyas.com/inventor/kazuhito-kawasumi

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

Calculating rank
USPTO Granted Patents = 12 

% Patents Active = 33.3

Average Co-Inventor Count = 5.8

ph-index = 4

Forward Citations = 41(Granted Patents)


Location History:

  • Aichi-ken, JP (2008)
  • Kariya, JP (1998 - 2018)

Company Filing History:

goldMedal10 out of 1,903 
 
Kabushiki Kaisha Toyota Jidoshokki
 patents
silverMedal6 out of 1,766 
 
National Institute of Advanced Industrial Science and Technology
 patents
bronzeMedal2 out of 1,343 
 
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
 patents
where one patent can have more than one assignee

Years Active: 1998-2018

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12 patents (USPTO):Explore Patents
1. 9997772 - Negative-electrode material for nonaqueous-electrolyte secondary battery production process for the same, negative electrode for nonaqueous-electrolyte secondary battery, and nonaqueous-electrolyte secondary battery (2018-06-12),
2. 9590237 - Lithium-ion secondary battery and method for producing the same (2017-03-07),
3. 9583765 - Positive electrode active material for sodium ion secondary battery, positive electrode, and sodium ion secondary battery (2017-02-28),
4. 9444100 - Secondary battery (2016-09-13),
5. 9330805 - Lithium silicate-based compound, positive electrode active material for lithium ion secondary battery, and lithium ion secondary battery using the same (2016-05-03),
6. 9315390 - Production process for lithium-silicate-based compound (2016-04-19),
7. 9190186 - Negative-electrode active material for nonaqueous-electrolyte secondary battery production process for the same, negative electrode for nonaqueous-electrolyte secondary battery, and nonaqueous-electrolyte secondary battery (2015-11-17),
8. 9082525 - Lithium silicate-based compound and production process for the same, positive-electrode active material and positive electrode for use in lithium-ion secondary battery as well as secondary battery (2015-07-14),
9. 8728663 - Positive electrode for lithium-ion secondary battery and lithium-ion secondary battery comprising that positive electrode (2014-05-20),
10. 7329984 - Organic EL devices (2008-02-12),
11. 5842354 - Climate controller for automobiles (1998-12-01),
12. 5800133 - Compressor with discharge chamber relief valve (1998-09-01),

Title: Kazuhito Kawasumi: Innovator in Battery Technology

Introduction

Kazuhito Kawasumi is a prominent inventor based in Kariya, Japan, known for his significant contributions to battery technology. He holds a total of 12 patents, showcasing his expertise and innovative spirit in the field of nonaqueous-electrolyte secondary batteries.

Latest Patents

Kawasumi's latest patents include advancements in negative-electrode materials for nonaqueous-electrolyte secondary batteries. His work involves a production process for a negative-electrode material that includes lithium silicate particles coated by a carbonaceous substance. This innovative approach enhances the performance of lithium-ion secondary batteries. Additionally, he has developed a lithium-ion secondary battery that comprises a positive electrode with a composite of lithium silicate-based material and carbon material, along with a negative electrode containing silicon.

Career Highlights

Throughout his career, Kawasumi has worked with notable organizations, including Toyota Jidoshokki and the National Institute of Advanced Industrial Science and Technology. His experience in these institutions has allowed him to refine his skills and contribute to groundbreaking advancements in battery technology.

Collaborations

Kawasumi has collaborated with esteemed colleagues such as Junichi Niwa and Akira Kojima, further enhancing the innovative projects he has undertaken.

Conclusion

Kazuhito Kawasumi's work in battery technology exemplifies the spirit of innovation and dedication to advancing energy solutions. His contributions continue to impact the field significantly, paving the way for future developments in battery technology.

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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