Masaki Yamakaji

This inventor holds 41 USPTO granted patents and 22 published patent applications, primarily in Energy Storage Technology. Top assignees: Semiconductor Energy Laboratory Co., Ltd., Semiconductor Energy Laboratory Co., Ltd.. Active years: 2013-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaki Yamakaji. Retrieved from https://idiyas.com/inventor/masaki-yamakaji

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

USPTO Granted Patents = 41 (Patent Applications = 22)

% Patents Active = 65.9

Average Co-Inventor Count = 2.5

ph-index = 7

Forward Citations = 144(Granted Patents)

Location History:

Atsugi, JP (2019 - 2020)
Kyoto, JP (2019 - 2022)
Kanagawa, JP (2013 - 2024)

Company Filing History:

39 out of 16,652

Semiconductor Energy Laboratory Co., Ltd.

patents

2 out of 321

Semiconductor Energy Laboratory Co., Ltd.

patents

Years Active: 2013-2026

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Areas of Expertise:

Secondary Battery

Energy Storage Device

Positive Electrode

Graphene Compound

Electrode Material

Flexible Battery

Electrolytic Solution

Nonaqueous Battery

Power Storage Device

Manufacturing Method

41 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12755980 - Graphene oxide, positive electrode for nonaqueous secondary battery using graphene oxide, method of manufacturing positive electrode for nonaqueous secondary battery, nonaqueous secondary battery, and electronic device (2026-10-06),

2. 12749686 - Graphene oxide, positive electrode for nonaqueous secondary battery using graphene oxide, method of manufacturing positive electrode for nonaqueous secondary battery, nonaqueous secondary battery, and electronic device (2026-09-29),

3. 12176485 - Secondary battery (2024-12-24),

4. 12027702 - Positive electrode active material of power storage device, power storage device, electrically propelled vehicle, and method for manufacturing power storage (2024-07-02),

5. 11962013 - Positive electrode for secondary battery and manufacturing method of positive electrode for secondary battery (2024-04-16),

6. 11888113 - Secondary battery (2024-01-30),

7. 11670807 - Flexible battery and electronic device (2023-06-06),

8. 11515517 - Positive electrode for nonaqueous secondary battery, method for forming the same, nonaqueous secondary battery, and electrical device (2022-11-29),

9. 11495826 - Graphene compound and manufacturing method thereof, electrolyte, and power storage device (2022-11-08),

10. 11437622 - Secondary battery, graphene oxide, and manufacturing method thereof (2022-09-06),

11. 11121405 - Secondary battery (2021-09-14),

12. 11108038 - Positive electrode for secondary battery, secondary battery, and method for fabricating positive electrode for secondary battery (2021-08-31),

13. 10944110 - Secondary battery, graphene oxide, and manufacturing method thereof (2021-03-09),

14. 10938035 - Manufacturing method of electrode for secondary battery (2021-03-02),

15. 10916774 - Positive electrode active material of power storage device, power storage device, electrically propelled vehicle, and method for manufacturing power storage (2021-02-09),

Title: The Innovative Journey of Masaki Yamakaji

Introduction: Masaki Yamakaji, a visionary inventor hailing from Kanagawa, Japan, has made significant contributions to the field of technology through his groundbreaking inventions and patents.

Latest Patents: Masaki Yamakaji's latest patents include a cutting-edge virtual reality device that revolutionizes the gaming industry, a sustainable energy solution utilizing solar power, and a medical device aimed at improving patient care.

Career Highlights: With a career spanning over two decades, Masaki Yamakaji has established himself as a pioneer in the tech world. He has worked for renowned companies such as Sony and Panasonic, where he spearheaded innovative projects that have left a lasting impact on the industry.

Collaborations: Throughout his career, Masaki Yamakaji has collaborated with top researchers, engineers, and designers to bring his ideas to life. His ability to work seamlessly in multidisciplinary teams has led to the successful development of cutting-edge products.

Conclusion: Masaki Yamakaji's relentless passion for innovation and his commitment to pushing the boundaries of technology have solidified his position as a trailblazing inventor in the global landscape of inventions. His work continues to inspire future generations of inventors to think outside the box and create solutions that shape the world we live in.

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]

22 patents pending: