Matahiro Komuro

This inventor holds 58 USPTO granted patents and 19 published patent applications, primarily in Magnetic Materials (CPC class C22C). Top assignees: Hitachi, Ltd., Hitachi Chemical Company, Ltd., Hitachi Global Storage Technologies Japan, Ltd.. Active years: 1987-2026.

USPTO Granted Patents = 58 (Patent Applications = 19)

% Patents Active = 37.9

Average Co-Inventor Count = 3.4

ph-index = 9

Forward Citations = 236(Granted Patents)

Forward Citations (Not Self Cited) = 211(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Hitachi, JP (1987 - 2016)
Tokyo, JP (2019 - 2024)

Company Filing History:

Hitachi Chemical Company, Ltd.

patents

2 out of 227

Hitachi Global Storage Technologies Japan, Ltd.

Hitachi Industrial Equipment Systems Co., Ltd.

where one patent can have more than one assignee

Years Active: 1987-2026

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Areas of Expertise:

Soft Magnetic Iron Sheet

Sintered Magnet

Electric Motor

Magnetic Material

Rare Earth Magnet

Ball Screw

High Resistance Magnet

MRI Apparatus

Dynamo Electric Machine

Compacted Magnetic Core

Powdered-Iron Magnet

Magnet Motor

58 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12723294 - Soft magnetic material, method for producing soft magnetic material, and electric motor (2026-09-01),

2. 12665447 - Laminated iron core and rotating electric machine using the same (2026-06-23),

3. 12512239 - Soft magnetic iron sheet, method for producing soft magnetic iron sheet, and, iron core and dynamo-electric machine, each using soft magnetic iron sheet (2025-12-30),

4. 12431269 - Soft magnetic steel sheet, method for manufacturing the soft magnetic steel sheet, and core and dynamo-electric machine in which the soft magnetic steel sheet is used (2025-09-30),

5. 12234534 - Sintered magnet and production method for sintered magnet (2025-02-25),

6. 12129558 - Soft magnetic material and method for producing the same, and electric motor containing soft magnetic material (2024-10-29),

7. 12060926 - Ball screw, method for manufacturing ball screw, power steering device, and method for manufacturing power steering device (2024-08-13),

8. 10240225 - Steel material, material processing method, and material processing apparatus (2019-03-26),

9. 9373432 - Alcoholic solution and sintered magnet (2016-06-21),

10. 9129731 - Sintered magnet (2015-09-08),

11. 8821649 - Magnetic material and motor using the same (2014-09-02),

12. 8764917 - Ferromagnetic compound magnet (2014-07-01),

13. 8388769 - Powdered-iron magnet and rotating machine using the same (2013-03-05),

14. 8358040 - Permanent magnet type electric rotating machine (2013-01-22),

15. 8350430 - Rotating machine with sintered magnet and method for producing sintered magnet (2013-01-08),

Title: Matahiro Komuro - Pioneering Inventor from Hitachi, Japan

Introduction: Matahiro Komuro is a renowned inventor hailing from Hitachi, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Matahiro Komuro holds several patents in various technological domains, including robotics, artificial intelligence, and renewable energy solutions.

Career Highlights: With a career spanning over three decades, Komuro has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant advancements in the industry.

Collaborations: Throughout his career, Matahiro Komuro has collaborated with top researchers, engineers, and scientists both in Japan and internationally, fostering a culture of innovation and knowledge sharing.

Conclusion: Matahiro Komuro's dedication to pushing the boundaries of technology and his passion for innovation continue to inspire the next generation of inventors and researchers worldwide.