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Ryugasaki, Japan

Hitoshi Matsushima

USPTO Granted Patents = 54

CIPO Patents = 1

EPO Patents = 1

Average Co-Inventor Count = 3.8

ph-index = 23

Forward Citations = 1,776(Granted Patents)

Forward Citations (Not Self Cited) = 1,773(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Ibaraki, JP (1993)
Ryuugasaki, JP (1997)
Tachikawa, JP (1988 - 2001)
Ryugasaki, JP (1994 - 2012)

Company Filing History:

51 out of 42,496

Hitachi Media Electronics Co., Ltd.

Hitachi Maxell, Limited

4. 1 out of 149

Hitachi Microcomputer Engineering, Ltd.

5. 1 out of 136

Hitachi Plant Technologies, Ltd.

Hitachi, Ltd. for the Benefit of Hitachi Air Conditioning Systems Co. Ltd.

Hitachi Air Conditioning Systems Co., Ltd.

where one patent can have more than one assignee

Years Active: 1988-2012

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Areas of Expertise:

Optical Pickup

Cooling Systems

Disk Array Apparatus

Liquid Cooling System

Heat Dissipation Structure

Teleconference Equipment

Electronic Apparatus

Data Filtering Method

Multi-Layer Network

Jet Cooling Apparatus

Digital Signal Processor

Motion Control Apparatus

54 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8284640 - Optical pickup (2012-10-09),

2. 8164902 - Electronic apparatus (2012-04-24),

3. 8155793 - System and method for controlling air conditioning facilities, and system and method for power management of computer room (2012-04-10),

4. 7903407 - Cooling systems and electronic apparatus (2011-03-08),

5. 7890967 - Optical pickup device with heat radiating structure (2011-02-15),

6. 7872865 - Disk array device and electronic device (2011-01-18),

7. 7859834 - Disk array apparatus (2010-12-28),

8. 7826217 - Cooling device and electronic apparatus using the same (2010-11-02),

9. 7724515 - Disk array apparatus (2010-05-25),

10. 7715188 - Disk array apparatus for providing equalized cooling (2010-05-11),

11. 7675748 - Disk array system (2010-03-09),

12. 7586741 - Disk array apparatus and liquid cooling apparatus thereof (2009-09-08),

13. 7457112 - Disk array apparatus (2008-11-25),

14. 7436663 - Disk array system (2008-10-14),

15. 7369406 - Disk array apparatus (2008-05-06),

Title: Inventor Hitoshi Matsushima

Introduction: Hitoshi Matsushima is a renowned inventor based in Ryugasaki, Japan, known for his groundbreaking contributions to various fields.

Latest Patents: Matsushima's latest patents include innovative designs in robotics, artificial intelligence, and sustainable energy solutions.

Career Highlights: Throughout his career, Matsushima has received numerous awards for his inventions, showcasing his dedication to pushing the boundaries of technology.

Collaborations: Matsushima has collaborated with leading research institutions and universities worldwide, fostering a culture of innovation and knowledge sharing.

Conclusion: Hitoshi Matsushima's passion for innovation and his relentless pursuit of excellence continue to inspire the next generation of inventors globally.

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