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For the Inventor, By the Inventor

Yokohama, Japan

Masaji Ishigaki

This inventor holds 22 USPTO granted patents. Top assignees: Hitachi, Ltd., Kohsaku Toda, Shigeo Mikoshiba. Active years: 1987-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaji Ishigaki. Retrieved from https://idiyas.com/inventor/masaji-ishigaki

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 22

% Patents Active = 86.4

Average Co-Inventor Count = 5.1

ph-index = 11

Forward Citations = 272(Granted Patents)


Location History:

  • Kanagawa, JP (1987)
  • Yokohama, JP (1988 - 2005)
  • Miyazaki, JP (2012)

Company Filing History:

goldMedal21 out of 42,726 
 
Hitachi, Ltd.
 patents
silverMedal1 out of 1 
 
Kohsaku Toda
 patent
bronzeMedal1 out of 1 
 
Shigeo Mikoshiba
 patent
4. 1 out of 1 
 
Takhiro Yamaguchi
 patent
5. 1 out of 834,453 
Other
 patents
where one patent can have more than one assignee

Years Active: 1987-2012

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22 patents (USPTO):Explore Patents
1. 8264424 - Plasma display module and its driving method, and plasma display (2012-09-11),
2. 6838825 - Adjustment of luminance balance of red, green and blue light emissions for plasma display by using different sized areas of phosphor layers producing corresponding colors (2005-01-04),
3. 6747410 - Display panel and discharge type display apparatus having mixture of three gases (2004-06-08),
4. 6512500 - Plasma display, driving apparatus for a plasma display panel and driving method thereof (2003-01-28),
5. 6417822 - Display device and driving method thereof (2002-07-09),
6. 6411032 - Adjustment of luminance balance of red, green and blue light emissions for plasma display by using different sized areas of phosphor layers producing corresponding colors (2002-06-25),
7. 6407509 - Plasma display panel (2002-06-18),
8. 6404411 - Display panel driving method and discharge type display apparatus (2002-06-11),
9. 6333766 - Tone display method and apparatus for displaying image signal (2001-12-25),
10. 6333599 - Plasma display system (2001-12-25),
11. 6320560 - Plasma display, driving apparatus of plasma display panel and driving system thereof (2001-11-20),
12. 6281863 - Plasma display panel driving system and method (2001-08-28),
13. 6151000 - Display apparatus and display method thereof (2000-11-21),
14. 6115011 - Plasma display device and driving method (2000-09-05),
15. 6100939 - Tone display method and apparatus for displaying image signal (2000-08-08),

Title: Masaji Ishigaki: Pioneering Inventor from Yokohama

Introduction: Masaji Ishigaki is a renowned inventor hailing from Yokohama, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Masaji Ishigaki 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 three decades, Ishigaki has worked with leading tech companies in Japan, spearheading research and development projects that have resulted in cutting-edge inventions that have revolutionized various industries.

Collaborations: Throughout his career, Masaji Ishigaki has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge exchange that has led to the creation of impactful technologies.

Conclusion: Masaji Ishigaki's relentless passion for innovation and his remarkable contributions to the world of technology have solidified his position as a trailblazing inventor, inspiring the next generation of innovators to push the boundaries of what is possible.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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