Shinji Inazawa

This inventor holds 57 USPTO granted patents and 38 published patent applications, plus 5 CIPO patents and 3 EPO patents, primarily in Molten Salt Batteries (CPC class H01M). Top assignees: Sumitomo Electric Industries, Limited, A.l.m.t. Corporation, Daiwa Fine Chemicals Co., Ltd.. Active years: 1992-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shinji Inazawa. Retrieved from https://idiyas.com/inventor/shinji-inazawa

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

USPTO Granted Patents = 57 (Patent Applications = 38)

% Patents Active = 75.4

CIPO Patents = 5 (Patent Applications = 2)

EPO Patents = 3 (Patent Applications = 21)

Average Co-Inventor Count = 4.3

ph-index = 9

Forward Citations = 351(Granted Patents)

Forward Citations (Not Self Cited) = 340(Dec 10, 2025)

Inventors with similar research interests:

Company Filing History:

51 out of 10,641

Sumitomo Electric Industries, Limited

Daiwa Fine Chemicals Co., Ltd.

Sumitomo Electric Company, Limited

patents

7. 4 out of 834,513

Other

patents

where one patent can have more than one assignee

Years Active: 1992-2018

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Areas of Expertise:

Molten Salt Battery

Electrode

Heat Resistant Battery

Manufacturing Method

Sodium Molten Salt

Power Supply System

Metal Laminated Structure

Gas Decomposition

Electromagnetic Wave Absorbent

Porous Metal Body

Thermocouple

Electro-Discharge Machining

57 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9966634 - Heat resistant battery and method for charging and discharging the same (2018-05-08),

2. 9755240 - Electrode for sodium molten-salt battery and sodium molten-salt battery (2017-09-05),

3. 9711827 - Sodium molten salt battery (2017-07-18),

4. 9553336 - Power supply system for well (2017-01-24),

5. 9512530 - Molten salt bath, deposit, and method of producing metal deposit (2016-12-06),

6. 9446350 - Gas decomposition apparatus and method for decomposing gas (2016-09-20),

7. 9391341 - Manufacturing method for molten salt battery and molten salt battery (2016-07-12),

8. 9352966 - Method for producing imide salt (2016-05-31),

9. 9276241 - Molten salt battery case, and molten salt battery (2016-03-01),

10. 9269941 - Molten salt battery (2016-02-23),

11. 9199433 - Metal laminated structure and method for producing the metal laminated structure (2015-12-01),

12. 9169123 - Method for producing sodium chromite (2015-10-27),

13. 8993121 - Metal laminated structure and method for producing the same (2015-03-31),

14. 8902566 - Capacitor, and method for producing the same (2014-12-02),

15. 8859140 - Electrode for molten salt battery, molten salt battery, and method for producing electrode (2014-10-14),

Title: Innovations and Contributions of Shinji Inazawa in the Battery Technology Sector

Introduction

Shinji Inazawa, an accomplished inventor based in Osaka, Japan, has made significant advancements in battery technology. With a remarkable portfolio of 57 patents, Inazawa is recognized for his innovative approach to addressing the challenges associated with energy storage and conversion.

Latest Patents

Among his latest contributions is the patent for a heat-resistant battery and method for charging and discharging the same. This innovative battery design features a positive electrode that includes a positive electrode current collector and an active material capable of electrochemically storing sodium ions. The negative electrode is formulated with sodium-containing titanium compounds and non-graphitizable carbon, enhancing the battery's efficiency at reduced potentials. Additionally, the sodium ion-conductive electrolyte plays a crucial role, consisting of an organic cation with a pyrrolidinium skeleton and a bis(perfluoroalkyl sulfonyl)imide anion.

Furthermore, Inazawa invented an electrode for sodium molten-salt batteries that mitigates degradation during repeated charge and discharge cycles, achieving excellent cycle characteristics. This electrode comprises a durable binder-free polymer, ensuring longevity and reliability.

Career Highlights

Inazawa has held influential positions at Sumitomo Electric Industries, Limited, a leading company in the field of electrical and electronic equipment. His work in this esteemed organization demonstrates his commitment to developing advanced battery technologies that meet modern energy demands.

Collaborations

Throughout his career, Inazawa has collaborated with notable colleagues, including Koji Nitta and Masatoshi Majima. Their collective expertise and innovative spirit have contributed to the successful development of various patented technologies.

Conclusion

Shinji Inazawa's impressive body of work serves as a testament to his dedication to innovation in battery technology. With a focus on enhancing efficiency and sustainability, Inazawa's inventions are shaping the future of energy storage and contributing to the global pursuit of renewable energy solutions. His continued efforts and collaborations are poised to make a lasting impact in the industry.

Profile summary based on public USPTO records.