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For the Inventor, By the Inventor

Tokyo, Japan

Masatsugu Nakano

This inventor holds 65 USPTO granted patents and 7 published patent applications and 14 EPO patents, primarily in Solid-State Batteries (CPC class H02K). Top assignees: Mitsubishi Electric Corporation, Mitsubishi Denki Kabushiki Kaisha, Terawatt Technology Inc.. Active years: 2002-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masatsugu Nakano. Retrieved from https://idiyas.com/inventor/masatsugu-nakano

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

USPTO Granted Patents = 65 

% Patents Active = 70.8

 

Average Co-Inventor Count = 4.3

ph-index = 8

Forward Citations = 243(Granted Patents)

Forward Citations (Not Self Cited) = 228(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Chiyda-ku, JP (2013)
  • Chiyoda-ku, JP (2014 - 2020)
  • Tokyo, JP (2002 - 2023)
  • Kanagawa, JP (2021 - 2023)

Company Filing History:

goldMedal39 out of 16,618 
 
Mitsubishi Electric Corporation
 patents
silverMedal11 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents
bronzeMedal11 out of 16 
 
Terawatt Technology Inc.
 patents
4. 2 out of 482 
 
Sumitomo Osaka Cement Co., Ltd.
 patents
5. 1 out of 19 
 
Mistubishi Electric Corporation
 patents
6. 1 out of 3 
 
Mitsubishi Electronics Corporation
 patents
7. 1 out of 518 
 
Toshiba Mitsubishi-Electric Industrial Systems Corporation
 patents
where one patent can have more than one assignee

Years Active: 2002-2026

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Areas of Expertise:
Solid-State Battery
Anode-Free Design
Phase-Change Electrolyte
Lithium Gel Layer
Pressure Homogenizing
Cylindrical Battery
Rotating Electric Machine
Permanent Magnet Motor
Isostatic Press
Electric Power Steering
Motor Drive Apparatus
Flux Barrier
65 patents (USPTO):Explore Patents
1. 12567601 - Systems and methods for a battery utilizing separate pressure homogenizing medium layers between a battery pouch and a plane jig (2026-03-03),
2. 12412901 - Interfacial bonding layer for an anode-free solid-state-battery (2025-09-09),
3. 12406997 - Anode-free solid state battery having a pseudo-solid lithium gel layer (2025-09-02),
4. 12125975 - Phase-change electrolyte separator for a solid-state battery (2024-10-22),
5. 11757340 - Rotating electric machine (2023-09-12),
6. 11695149 - Isostatic press devices and processes for cylindrical solid-state batteries (2023-07-04),
7. 11522212 - Layered pressure homogenizing soft medium for li-ion rechargeable batteries (2022-12-06),
8. 11515539 - Volume-expansion accommodable anode-free solid-state battery (2022-11-29),
9. 11456633 - Permanent magnet rotating electric machine (2022-09-27),
10. 11335943 - Solid state battery variable pressure optimization system (2022-05-17),
11. 11283332 - Rotating electric machine (2022-03-22),
12. 11271253 - Cylindrical anode-free solid state battery having a pseudo-solid lithium gel layer (2022-03-08),
13. 11069897 - Volume-expansion accommodable anode-free solid-state battery (2021-07-20),
14. 10957935 - Isostatic press devices and processes for cylindrical solid-state batteries (2021-03-23),
15. 10833549 - Rotary electric machine (2020-11-10),

Title: Innovations and Contributions of Masatsugu Nakano

Introduction

Masatsugu Nakano, a prominent inventor based in Tokyo, Japan, has made significant contributions to the field of engineering and technology. With an impressive portfolio of 62 patents, he has helped advance various technologies, particularly in battery systems and electric machinery.

Latest Patents

Among Nakano's latest patents is a groundbreaking invention focused on a phase-change electrolyte separator for solid-state batteries. This innovative separator layer includes a non-reactive scaffold with open spaces, which can host a lithium liquid that transitions into a gel upon heating. This process utilizes a mixture of polymer additives, a cross-linker additive, a lithium salt, and a solvent, showcasing Nakano's commitment to enhancing battery performance and efficiency.

Another notable patent involves a rotating electric machine designed to minimize oscillations and noise. This invention integrates a stator, rotor, and frame, with the rotor featuring a core and multiple permanent magnets divided into blocks. The unique arrangement of skew-angle-increasing and skew-angle-decreasing pairs contributes to the machine's improved stability and quiet operation.

Career Highlights

Masatsugu Nakano has had a remarkable career, including key positions at Mitsubishi Electric Corporation and Mitsubishi Denki Kabushiki Kaisha. His tenure at these esteemed companies has allowed him to apply his innovative ideas and patent them effectively.

Collaborations

Throughout his career, Nakano has collaborated with notable professionals in the field, including coworkers Satoru Akutsu and Yu Hirotani. Their collective efforts have resulted in pioneering technologies that push the boundaries of engineering and innovation.

Conclusion

Masatsugu Nakano stands out as a leading inventor and innovator in the technology sector. His 62 patents demonstrate his deep understanding of complex engineering principles and his commitment to developing solutions that meet the demands of modern technology. With a focus on improving battery systems and reducing noise in electric machines, Nakano’s work continues to inspire future innovations in the field.

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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