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Kazuhito Hatoh

USPTO Granted Patents = 81 (Patent Applications = 5)

CIPO Patents = 4

EPO Patents = 22 (Patent Applications = 9)

Average Co-Inventor Count = 5.5

ph-index = 16

Forward Citations = 750(Granted Patents)

Forward Citations (Not Self Cited) = 740(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Neyagawa, JP (1991)
Daitou, JP (1994 - 2002)
Daito, JP (1993 - 2005)
Osaka, JP (1994 - 2015)

Company Filing History:

51 out of 27,375

Matsushita Electric Industrial Co., Ltd.

28 out of 16,453

Panasonic Corporation

Matushita Electric Industrial Co., Ltd.

4. 1 out of 13,289

Panasonic Intellectual Property Management Co., Ltd.

5. 1 out of 2,560

Asahi Glass Company, Limited

where one patent can have more than one assignee

Years Active: 1991-2015

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Areas of Expertise:

Optically Pumped Semiconductor

Hydrogen Generation Device

Photoelectrochemical Cell

Fuel Cell Technology

Polymer Electrolyte Fuel Cell

Separator for Fuel Cell

Electrode Manufacturing Methods

Energy Systems

Current Collector Plates

Differential Pressure Control

Membrane-Electrode Assembly

Preservation Assembly

81 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8951447 - Optically pumped semiconductor and device using the same (2015-02-10),

2. 8734625 - Hydrogen generation device (2014-05-27),

3. 8663872 - Method for manufacturing membrane-membrane reinforcing member assembly, membrane-catalyst layer assembly, membrane-electrode assembly, and polymer electrolyte fuel cell (2014-03-04),

4. 8454807 - Photoelectrochemical cell (2013-06-04),

5. 8404401 - Fuel cell having improved contact between separators and gas diffusion layers (2013-03-26),

6. 8236146 - Photoelectrochemical cell and energy system using the same (2012-08-07),

7. 8137863 - Fuel cell (2012-03-20),

8. 8137829 - Method of preserving polymer electrolyte fuel cell stack and preservation assembly of polymer electrolyte fuel cell stack (2012-03-20),

9. 8097112 - Method for manufacturing membrane-electrode assembly (2012-01-17),

10. 8084165 - MEA, MEA manufacturing method, and polymer electrolyte fuel cell (2011-12-27),

11. 8021772 - Preservation assembly of polymer electrolyte fuel cell stack (2011-09-20),

12. 8012646 - Polymer electrolyte fuel cell provided with a tightening pressure (2011-09-06),

13. 8003239 - Method of preserving polymer electrolyte fuel cell stack and preservation assembly of polymer electrolyte fuel cell stack (2011-08-23),

14. 7976972 - Method of preserving polymer electrolyte fuel cell stack and preservation assembly of polymer electrolyte fuel cell stack (2011-07-12),

15. 7943261 - Method of operating fuel cell system and fuel cell system (2011-05-17),

Title: Kazuhito Hatoh - Innovative Inventor from Osaka

Introduction: Kazuhito Hatoh is a renowned inventor hailing from Osaka, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Kazuhito Hatoh holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his versatility and forward-thinking approach to invention.

Career Highlights: With a career spanning over two decades, Hatoh has worked with leading research institutions and tech companies to develop cutting-edge solutions that have revolutionized various industries.

Collaborations: Throughout his career, Kazuhito Hatoh has collaborated with top engineers, scientists, and designers, fostering a culture of innovation and excellence in all his projects.

Conclusion: Kazuhito Hatoh's passion for innovation and his relentless pursuit of excellence have solidified his reputation as a visionary inventor, inspiring the next generation of innovators to push the boundaries of what is possible.

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