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Atsushi Hatakeyama

USPTO Granted Patents = 74 (Patent Applications = 6)

EPO Patents = 2 (Patent Applications = 5)

Average Co-Inventor Count = 3.1

ph-index = 27

Forward Citations = 2,089(Granted Patents)

Forward Citations (Not Self Cited) = 2,074(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Kanagawa, JP (1999)
Kawasaki, JP (1993 - 2007)
Yokohama, JP (2007 - 2015)
Tokyo, JP (1989 - 2020)
Kokubunji, JP (1988 - 2023)

Company Filing History:

35 out of 42,496

27 out of 39,238

Fujitsu Corporation

4 out of 21,594

Eastman-kodak Company

4. 3 out of 1,357

Mitsubishi Rayon Company, Limited

5. 1 out of 1,112

Hitachi Maxell, Limited

Hatakeyama Et Al.

Mitsubishi Rayon Cleansui Company, Limited

8. 1 out of 37,972

Micron Technology Incorporated

9. 1 out of 1,075

10. 1 out of 52

Longitude Semiconductor S.a.r.l.

where one patent can have more than one assignee

Years Active: 1988-2023

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Areas of Expertise:

Semiconductor Device

Document Retrieval System

Data Search Method

Security Management Device

Water Purification Cartridge

Business Process Management

Memory Device

Integrated Circuit

Dynamic Memory Device

Knowledge Based Information Retrieval

Pulse Generator

Text Data Registration

74 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11735246 - Semiconductor device performing refresh operation (2023-08-22),

2. 10628488 - Document retrieval system and retrieval method (2020-04-21),

3. 10423613 - Data search method and data search system (2019-09-24),

4. 10394870 - Search method (2019-08-27),

5. 9515001 - Semiconductor device having potential monitoring terminal to monitor potential of power-supply line (2016-12-06),

6. 9021480 - Security management device and method (2015-04-28),

7. 9005435 - Structure for opening section, and water purification cartridge (2015-04-14),

8. 8566391 - System and method for evaluating application suitability in execution environment (2013-10-22),

9. 8321863 - Security management device and method (2012-11-27),

10. 8250205 - Business process management system, method thereof, process management computer and program thereof (2012-08-21),

11. 8041591 - Business process operation method and system (2011-10-18),

12. 7908314 - Method for controlling a management computer (2011-03-15),

13. 7360214 - Method and system for displaying integrated log information (2008-04-15),

14. 7307885 - Multi-value nonvolatile semiconductor memory device equipped with reference cell and load balancing circuit (2007-12-11),

15. 7224602 - Semiconductor memory device and control method having data protection feature (2007-05-29),

Title: Atsushi Hatakeyama: Pioneering Inventor from Tokyo

Introduction: Atsushi Hatakeyama is a renowned inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Atsushi Hatakeyama holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous commitment to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Atsushi Hatakeyama has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant technological breakthroughs.

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

Conclusion: Atsushi Hatakeyama's relentless pursuit of innovation and his passion for creating cutting-edge technologies have solidified his reputation as a visionary inventor in the global tech community.

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