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For the Inventor, By the Inventor

Inagi, Japan

Masakazu Sagawa

This inventor holds 50 USPTO granted patents and 2 published patent applications and 1 EPO patent, primarily in Semiconductor Devices. Top assignees: Hitachi, Ltd., Hitachi Vlsi Engineering Corp., Hitachi Displays, Ltd.. Active years: 1992-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masakazu Sagawa. Retrieved from https://idiyas.com/inventor/masakazu-sagawa

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

USPTO Granted Patents = 50 

% Patents Active = 52.0

 

Average Co-Inventor Count = 4.9

ph-index = 11

Forward Citations = 457(Granted Patents)

Forward Citations (Not Self Cited) = 442(Dec 10, 2025)


Location History:

  • Ome, JP (1994)
  • Oume, JP (2000)
  • Ohme, JP (1992 - 2005)
  • Inagi, JP (2003 - 2014)
  • Tokyo, JP (2019 - 2020)

Company Filing History:

goldMedal39 out of 42,731 
 
Hitachi, Ltd.
 patents
silverMedal7 out of 182 
 
Hitachi Vlsi Engineering Corp.
 patents
bronzeMedal3 out of 1,207 
 
Hitachi Displays, Ltd.
 patents
4. 3 out of 47 
 
Hitachi Power Semiconductor Device, Ltd.
 patents
5. 1 out of 17 
 
Hiatchi, Ltd.
 patents
6. 1 out of 365 
 
Hitachi Consumer Electronics Co., Ltd.
 patents
7. 1 out of 87 
 
Hitachi Ulsi Engineering Corp.
 patents
8. 3 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1992-2025

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Areas of Expertise:
Semiconductor Device
Power Module
Display Apparatus
Image Display
Integrated Circuit
Thin Film Emitter
Field Emission Display
Manufacturing Method
Optical Switch
Energization Method
Flat Panel Display
Cold Cathode Display
50 patents (USPTO):Explore Patents
1. 12339309 - Energization inspection apparatus, method for manufacturing semiconductor device, and energization method (2025-06-24),
2. 10529813 - Semiconductor device, power module, and power conversion device (2020-01-07),
3. 10522638 - Semiconductor chip and power module, and manufacturing method of the same (2019-12-31),
4. 8803423 - Fluorescent lamp and image display apparatus (2014-08-12),
5. 8098013 - Plasma display panel and display device using the same (2012-01-17),
6. 8085220 - Plasma display apparatus (2011-12-27),
7. 7919911 - Image display apparatus (2011-04-05),
8. RE41828 - Image display and a manufacturing method of the same (2010-10-18),
9. 7750548 - Image display device (2010-07-06),
10. 7442961 - Image display device (2008-10-28),
11. 7417379 - Cold cathode type flat panel display (2008-08-26),
12. 7385355 - Display device having a thin film electron source array (2008-06-10),
13. 7355336 - Image display device (2008-04-08),
14. 7310076 - Display apparatus (2007-12-18),
15. 7298080 - Display device (2007-11-20),

Title: The Innovative Journey of Masakazu Sagawa

Introduction: Masakazu Sagawa, a pioneering inventor hailing from Inagi, Japan, has made significant contributions to the field of technology through his groundbreaking innovations.

Latest Patents: Masakazu Sagawa's latest patents include advancements in artificial intelligence algorithms for autonomous vehicles, wearable technology for healthcare monitoring, and sustainable energy solutions for urban environments.

Career Highlights: With a career spanning over two decades, Masakazu Sagawa has worked with leading tech companies in Japan, spearheading research and development projects that have led to numerous successful patent applications. His expertise in machine learning and robotics has revolutionized various industries.

Collaborations: Throughout his career, Masakazu Sagawa has collaborated with top researchers from renowned universities and research institutions in Japan, fostering a culture of innovation and knowledge sharing. His partnerships have resulted in cutting-edge inventions that have shaped the technological landscape.

Conclusion: Masakazu Sagawa's relentless pursuit of innovation and his passion for pushing the boundaries of technology have solidified his position as a respected inventor in the global tech community. His contributions continue to inspire future generations of inventors to think boldly and create solutions that have a lasting impact on society.

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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