EPO Patents = 1

Average Co-Inventor Count = 5.2

ph-index = 16

Forward Citations = 813(Granted Patents)

Forward Citations (Not Self Cited) = 730(Oct 12, 2025)

Inventors with similar research interests:

Location History:

Katsuta, JA (1977)
Ibaraki-ken, JP (1998 - 2002)
Chiyoda-ku, JP (2006)
Hitachinaka, JP (2007)
Higashiibaraki, JP (2004 - 2008)
Ibarakimachi, JP (1982 - 2010)
Ibaraki, JP (2002 - 2011)
Higashiibaraki-gun, JP (2002 - 2012)

Company Filing History:

Hitachi Car Engineering Co., Ltd.

patents

1 out of 152

Hitachi Automotive Engineering Co., Ltd.

5. 10 out of 832,680

Other

patents

where one patent can have more than one assignee

Years Active: 1977-2012

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52 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 8198775 - Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine (2012-06-12),

2. 8002076 - Electric power steering apparatus (2011-08-23),

3. 7956506 - Driving apparatus (2011-06-07),

4. 7851959 - Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine (2010-12-14),

5. 7847462 - Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine (2010-12-07),

6. 7808144 - Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine (2010-10-05),

7. 7683516 - Production method for rotating electric machine and stator coils, and electric power steering motor (2010-03-23),

8. 7671502 - Driving apparatus (2010-03-02),

9. 7667365 - Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine (2010-02-23),

10. 7453179 - DC brushless motor for electrical power steering and the production method thereof (2008-11-18),

11. 7446448 - Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine (2008-11-04),

12. 7417349 - Driving apparatus (2008-08-26),

13. 7378773 - Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine (2008-05-27),

14. 7294988 - Synchronous motor drive unit and a driving method thereof (2007-11-13),

15. 7242128 - DC brushless motor for electrical power steering and the production method thereof (2007-07-10),

Title: Inventor Osamu Koizumi

Introduction: Osamu Koizumi is a renowned inventor hailing from Higashiibaraki-gun, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Osamu Koizumi holds several patents in various technological domains, showcasing his continuous dedication to pushing the boundaries of innovation.

Career Highlights: Throughout his illustrious career, Osamu Koizumi has been instrumental in developing cutting-edge technologies that have revolutionized industries and improved the lives of many.

Collaborations: Osamu Koizumi has collaborated with leading research institutions, universities, and companies to further advance his inventions and bring them to the market, solidifying his reputation as a visionary inventor.

Conclusion: In conclusion, Osamu Koizumi's passion for innovation and his relentless pursuit of technological advancement have established him as a prominent figure in the world of inventors, leaving a lasting impact on the industry.

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1 patent (EPO):

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