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For the Inventor, By the Inventor

Hitachiota, Japan

Masaaki Kitajima

This inventor holds 40 USPTO granted patents, primarily in Liquid Crystal Display. Top assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd., Hitachi Haramachi Semi-Conductor, Ltd.. Active years: 1982-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaaki Kitajima. Retrieved from https://idiyas.com/inventor/masaaki-kitajima

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

USPTO Granted Patents = 40

% Patents Active = 95.0

Average Co-Inventor Count = 5.0

ph-index = 16

Forward Citations = 910(Granted Patents)


Location History:

  • Hitachi, JP (1982 - 1983)
  • Hitachiohta, JP (1988 - 1994)
  • Mobara, JP (2004)
  • Hitachioota, JP (1995 - 2007)
  • Ibaraki-ken, JP (2007)
  • Hitachiota, JP (1988 - 2008)

Company Filing History:

goldMedal38 out of 42,731 
 
Hitachi, Ltd.
 patents
silverMedal3 out of 217 
 
Hitachi Device Engineering Co., Ltd.
 patents
bronzeMedal2 out of 14 
 
Hitachi Haramachi Semi-Conductor, Ltd.
 patents
4. 2 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1982-2008

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Areas of Expertise:
Liquid Crystal Display
Active Matrix
Driving Method
Image Signal Lines
Display Device
Capacitor Formation
Halftone Display
Reflective-Type Display
Coordinate Input
Passivation Layer
Gray Scale Display
Guest-Host Phase
40 patents (USPTO):Explore Patents
1. 7355575 - Matrix panel display apparatus and driving method therefor wherein auxiliary signals are applied to non-selected picture elements (2008-04-08),
2. 7292212 - Liquid crystal display device (2007-11-06),
3. RE39798 - Active matrix LCD device with image signal lines having a multilayered structure (2007-08-27),
4. 6980273 - Active matrix type liquid crystal system (2005-12-27),
5. 6862066 - Display device with capacitor formed in a region of the substrate where the drive circuit is mounted (2005-03-01),
6. 6812911 - Liquid crystal display device (2004-11-02),
7. 6756958 - Liquid crystal display device (2004-06-29),
8. 6563561 - Active matrix type liquid crystal system (2003-05-13),
9. 6559823 - Method of driving STN liquid crystal panel and apparatus therefor (2003-05-06),
10. 6542141 - Liquid-crystal halftone display system (2003-04-01),
11. 6369805 - Information processing system (2002-04-09),
12. 6331845 - Liquid crystal display device and driving method therefor (2001-12-18),
13. 6081260 - Information processing system (2000-06-27),
14. 6072451 - Liquid-crystal halftone display system (2000-06-06),
15. 6064358 - Liquid crystal display device and driving method therefor (2000-05-16),

Title: Masaaki Kitajima: Pioneering Inventor from Hitachioota

Introduction: Masaaki Kitajima is a renowned inventor hailing from Hitachioota, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Masaaki Kitajima 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, Masaaki Kitajima has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant technological breakthroughs.

Collaborations: Throughout his career, Masaaki Kitajima has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge sharing in the tech industry.

Conclusion: Masaaki Kitajima's passion for innovation and his relentless pursuit of technological excellence have solidified his reputation as a visionary inventor, shaping the landscape of technology for years to come.

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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