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For the Inventor, By the Inventor

Takehara, Japan

Hideaki Matsushima

This inventor holds 13 USPTO granted patents and 1 published patent application and 8 EPO patents. Top assignee: Mitsui Minings & Melting Co., Ltd.. Active years: 2009-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hideaki Matsushima. Retrieved from https://idiyas.com/inventor/hideaki-matsushima-pygh3iyt

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

Calculating rank
USPTO Granted Patents = 13 

% Patents Active = 92.3

 

Average Co-Inventor Count = 4.1

ph-index = 3

Forward Citations = 65(Granted Patents)


Location History:

  • Saitama, JP (2009 - 2015)
  • Ageo, JP (2017 - 2018)
  • Takehara, JP (2018 - 2019)

Company Filing History:

goldMedal13 out of 817 
 
Mitsui Minings & Melting Co., Ltd.
 patents

Years Active: 2009-2025

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13 patents (USPTO):Explore Patents
1. 12431533 - Solid electrolyte, and electrode mixture, solid electrolyte layer and solid-state battery, each using same (2025-09-30),
2. 12424656 - Solid electrolyte, and electrode mixture, solid electrolyte layer and solid-state battery, each using same (2025-09-23),
3. 12334497 - Solid electrolyte, and electrode mixture, solid electrolyte layer and solid-state battery, each using same (2025-06-17),
4. 10468677 - Spinel-type lithium-manganese-containing complex oxide (2019-11-05),
5. 10446842 - 5V-class spinel-type lithium-manganese-containing composite oxide (2019-10-15),
6. 10312508 - Lithium metal composite oxide powder (2019-06-04),
7. 10276867 - 5V-class spinel-type lithium-manganese-containing composite oxide (2019-04-30),
8. 10263256 - Spinel type lithium nickel manganese-containing composite oxide (2019-04-16),
9. 10141570 - Positive electrode active material for lithium secondary cell (2018-11-27),
10. 9899701 - Sulfide-based solid electrolyte for lithium ion batteries (2018-02-20),
11. 9812734 - Sulfide-based solid electrolyte for lithium ion battery (2017-11-07),
12. 9138964 - Surface-treated copper foil (2015-09-22),
13. 7524552 - Copper foil provided with dielectric layer for forming capacitor layer, copper clad laminate for formation of capacitor layer using such copper foil with dielectric layer, and method for manufacturing producing such copper foil with dielectric layer for formation of capacitor layer (2009-04-28),

Title: Innovations of Hideaki Matsushima in Solid-State Battery Technology

Introduction

Hideaki Matsushima is a prominent inventor based in Takehara, Japan. He has made significant contributions to the field of solid-state battery technology, holding a total of 13 patents. His work focuses on the development of solid electrolytes and electrode mixtures that enhance battery performance.

Latest Patents

Matsushima's latest patents include innovations related to solid electrolytes and solid-state batteries. One of his notable inventions involves a solid electrolyte that comprises two compounds: compound A, which has an argyrodite-type crystal structure represented by LiPSX, and compound B, represented by LiX. These compounds are designed to optimize lithium ion conductivity, with compound B having a crystallite size of 25 nm or more. Additionally, the solid electrolyte is engineered to exhibit a lithium ion conductivity of 4.0 mS/cm or more at 25° C.

Career Highlights

Matsushima is currently employed at Mitsui Mining & Smelting Company, Ltd., where he continues to push the boundaries of battery technology. His research has been pivotal in advancing the understanding and application of solid-state batteries, which are crucial for the future of energy storage.

Collaborations

Matsushima has collaborated with notable colleagues, including Tetsuya Mitsumoto and Shinya Kagei. Their combined expertise has contributed to the successful development of innovative battery technologies.

Conclusion

Hideaki Matsushima's work in solid-state battery technology exemplifies the importance of innovation in the energy sector. His patents and collaborations are paving the way for more efficient and reliable energy storage solutions.

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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