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For the Inventor, By the Inventor

Sakai, Japan

Masahiro Tatsumisago

This inventor holds 24 USPTO granted patents and 10 published patent applications and 7 EPO patents, primarily in Solid-State Battery Technology. Top assignees: Japan Science and Technology Agency, Toyota Jidosha Kabushiki Kaisha, University Public Corporation Osaka. Active years: 1996-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiro Tatsumisago. Retrieved from https://idiyas.com/inventor/masahiro-tatsumisago

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

USPTO Granted Patents = 24 

% Patents Active = 58.3

 

Average Co-Inventor Count = 3.6

ph-index = 5

Forward Citations = 83(Granted Patents)


Location History:

  • Osaka, JP (2011 - 2018)
  • Sakai, JP (1996 - 2023)

Company Filing History:

goldMedal5 out of 1,329 
 
Japan Science and Technology Agency
 patents
silverMedal5 out of 38,970 
 
Toyota Jidosha Kabushiki Kaisha
 patents
bronzeMedal4 out of 57 
 
University Public Corporation Osaka
 patents
4. 3 out of 93,085 
 
Canon Kabushiki Kaisha
 patents
5. 3 out of 1,173 
 
Nippon Sheet Glass Company, Limited
 patents
6. 3 out of 89 
 
Osaka Prefecture University
 patents
7. 2 out of 27,375 
 
Matsushita Electric Industrial Co., Ltd.
 patents
8. 1 out of 2,283 
 
Idemitsu Kosan Company, Limited
 patents
9. 1 out of 377 
 
Japan Synthetic Rubber Co., Ltd.
 patents
10. 5 out of 834,570 
Other
 patents
where one patent can have more than one assignee

Years Active: 1996-2026

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Areas of Expertise:
Solid Electrolyte
All-Solid-State Battery
Lithium-Ion Conductive
Sodium Battery
Ion Conducting Glass-Ceramics
Composite Material Layer
Positive Electrode
Optical Transparent Member
Protonic Conductor
Electrochemical Element
Coated Active Material
Method for Manufacturing
24 patents (USPTO):Explore Patents
1. 12665194 - Solid solution, electrode active material, electrode and secondary battery (2026-06-23),
2. 11830985 - Solid electrolyte for all-solid sodium battery, method for producing same, and all-solid sodium battery (2023-11-28),
3. 11349123 - Amorphous oxide-based positive electrode active material, method for producing same and use of same (2022-05-31),
4. 11342580 - Solid electrolyte for all-solid sodium battery, and all-solid sodium battery (2022-05-24),
5. 10734634 - Positive electrode for all-solid secondary battery, method for manufacturing same, and all-solid secondary battery (2020-08-04),
6. 10439198 - Solution for forming layer that contains solid electrolyte for all-solid-state alkali metal secondary batteries, coated active material particles, electrode, all-solid-state alkali metal secondary battery and method for manufacturing same (2019-10-08),
7. 10033067 - All-solid-state secondary cell (2018-07-24),
8. 9640835 - Ion conducting glass-ceramics, method for manufacturing same and all-solid-state secondary battery including same (2017-05-02),
9. 9634360 - All-solid-state secondary cell (2017-04-25),
10. 9537174 - Sulfide solid electrolyte (2017-01-03),
11. 9397365 - Solid electrolyte material and all solid-state lithium secondary battery (2016-07-19),
12. 9064615 - Sulfide solid electrolyte material (2015-06-23),
13. 8962194 - Lithium ion conducting sulfide based crystallized glass and method for production thereof (2015-02-24),
14. 8637190 - Battery unit (2014-01-28),
15. 8574766 - Composite material layer and method of producing the same, and solid state battery and method of producing the same (2013-11-05),

Title: Innovations of Masahiro Tatsumisago: Pioneering Solid-State Battery Technology

Introduction: Masahiro Tatsumisago is a prominent inventor based in Sakai, Japan, credited with 23 patents. His groundbreaking work primarily revolves around advancements in solid-state battery technology, which is poised to revolutionize energy storage solutions in various applications.

Latest Patents: Notably, Tatsumisago's latest patents include a solid electrolyte for an all-solid-state sodium battery. This innovative material is represented by the formula NaSbαS, where α is selected from elements that enhance sodium bismuth sulfide's ionic conductivity. Furthermore, he has developed an amorphous oxide-based positive electrode active material, which serves as a key production material for positive electrodes in all-solid secondary batteries. This material notably incorporates various alkali metals and transition metals, indicating a significant advancement in battery technology.

Career Highlights: Tatsumisago's career is marked by his work with the Japan Science and Technology Agency, where he has contributed significantly to research and development in battery technologies. His focused dedication to improving efficiency and safety in energy storage has placed him at the forefront of innovations in this vital sector.

Collaborations: Throughout his career, Tatsumisago has collaborated with notable colleagues, including Akitoshi Hayashi and Tsutomu Minami. These partnerships have fostered a dynamic exchange of ideas and expertise, ultimately driving significant advancements in battery research.

Conclusion: Masahiro Tatsumisago's contributions to solid-state battery technology are invaluable and demonstrate the power of innovation in addressing contemporary energy challenges. With his extensive patent portfolio and collaborative efforts, he continues to pave the way for future developments in 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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