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For the Inventor, By the Inventor

Osaka, Japan

Hidekazu Hiratsuka

This inventor holds 25 USPTO granted patents and 8 published patent applications and 4 EPO patents, primarily in Nonaqueous Electrolyte Batteries. Top assignees: Panasonic Corporation, Panasonic Intellectual Property Management Co., Ltd., Sanyo Electric Co., Ltd.. Active years: 2008-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hidekazu Hiratsuka. Retrieved from https://idiyas.com/inventor/hidekazu-hiratsuka

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

USPTO Granted Patents = 25 

% Patents Active = 96.0

 

Average Co-Inventor Count = 1.6

ph-index = 3

Forward Citations = 40(Granted Patents)


Location History:

  • Kadoma, JP (2008 - 2015)
  • Osaka, JP (2010 - 2023)
  • Hyogo, JP (2024)

Company Filing History:

goldMedal15 out of 16,454 
 
Panasonic Corporation
 patents
silverMedal5 out of 13,338 
 
Panasonic Intellectual Property Management Co., Ltd.
 patents
bronzeMedal3 out of 8,782 
 
Sanyo Electric Co., Ltd.
 patents
4. 2 out of 367 
 
Panasonic Holdings Corporation
 patents
5. 1 out of 27,375 
 
Matsushita Electric Industrial Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 2008-2024

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Areas of Expertise:
Nonaqueous Electrolyte
Positive Electrode
Lithium Transition Metal Oxide
Battery Production Method
Nickel Hydroxide
Secondary Cell
Active Material
Electrode
Alkaline Battery
Battery Technology
Energy Storage
Battery Materials
25 patents (USPTO):Explore Patents
1. 12166205 - Positive electrode active substance for non-aqueous electrolyte secondary cell, and non-aqueous electrolyte secondary cell (2024-12-10),
2. 12119489 - Positive electrode active material for nonaqueous electrolyte secondary batteries comprising nickel-containing lithium transition metal oxide, nonaqueous electrolyte secondary battery comprising same, and method for producing positive electrode active material for nonaqueous electrolyte secondary batteries comprising nickel-containing lithium transition metal oxide (2024-10-15),
3. 11942637 - Positive electrode active material for nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery (2024-03-26),
4. 11588153 - Positive electrode active material for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery (2023-02-21),
5. 11552287 - Positive electrode active material for nonaqueous electrolyte secondary battery, positive electrode for nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery (2023-01-10),
6. 11349121 - Positive electrode active substance for nonaqueous electrolyte secondary battery, positive electrode for nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery (2022-05-31),
7. 11283059 - Positive electrode active material for nonaqueous electrolyte secondary batteries, and nonaqueous electrolyte secondary battery (2022-03-22),
8. 11043659 - Positive electrode for nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery (2021-06-22),
9. 10714748 - Positive electrode active material for nonaqueous electrolyte secondary batteries, and nonaqueous electrolyte secondary battery (2020-07-14),
10. 10601040 - Positive electrode active material for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery (2020-03-24),
11. 10573881 - Positive electrode active material for nonaqueous electrolyte secondary battery (2020-02-25),
12. 10147943 - Positive electrode active material for nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery (2018-12-04),
13. 10109854 - Positive electrode active material for nonaqueous electrolyte secondary batteries and nonaqueous electrolyte secondary battery (2018-10-23),
14. 9997774 - Positive electrode active material for nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery (2018-06-12),
15. 9985282 - Positive electrode active material for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery (2018-05-29),

Title: Innovations in Battery Technology: The Contributions of Hidekazu Hiratsuka

Introduction

Hidekazu Hiratsuka, a notable inventor based in Osaka, Japan, has made significant contributions to the field of battery technology. With a portfolio of 25 patents, he has played a crucial role in advancing non-aqueous electrolyte secondary cells, focusing on enhancing their efficiency and performance.

Latest Patents

Hiratsuka's latest innovations include a series of patents related to positive electrode active substances for non-aqueous electrolyte secondary cells. His patents describe a positive electrode active substance wherein the average primary particle diameter of an Ni-containing lithium complex oxide A is at least 0.5 μm, while also exceeding that of a secondary Ni-containing lithium complex oxide B, which has a diameter of at least 0.05 μm. Additionally, he has developed a non-aqueous electrolyte secondary battery that utilizes these materials, achieving a balance in particle sizes and ensuring a low disorder of elemental Ni at 3% or less, enhancing the overall battery reliability and lifespan.

Career Highlights

Hidekazu Hiratsuka has had a distinguished career, working for renowned companies such as Panasonic Corporation and Panasonic Intellectual Property Management Co., Ltd. His expertise in lithium transition metal oxides is highly regarded, leading to innovative developments that have strengthening the battery industry.

Collaborations

Throughout his career, Hiratsuka has collaborated with talented professionals, including Akihiro Maeda and Norihiro Yamamoto. Together, they have pushed the boundaries of technology in the battery sector, contributing to groundbreaking developments that integrate advanced materials and efficient designs.

Conclusion

As an inventor, Hidekazu Hiratsuka exemplifies the spirit of innovation within the battery technology field. His work not only demonstrates technical expertise but also fosters collaboration and advancement in energy storage systems. With his patents on non-aqueous electrolyte secondary cells, Hiratsuka continues to influence the future of sustainable energy 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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