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For the Inventor, By the Inventor

Chiba, Japan

Hidetsugu Matsukiyo

This inventor holds 10 USPTO granted patents. Top assignees: Hitachi Displays, Ltd., Hitachi, Ltd., Kasei Optonix, Ltd.. Active years: 1993-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hidetsugu Matsukiyo. Retrieved from https://idiyas.com/inventor/hidetsugu-matsukiyo

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

USPTO Granted Patents = 10

% Patents Active = 90.0

Average Co-Inventor Count = 3.9

ph-index = 4

Forward Citations = 57(Granted Patents)


Location History:

  • Koganei, JP (1993 - 1994)
  • Kawagoe, JP (1998 - 2002)
  • Mobara, JP (2004)
  • Chiba, JP (2005 - 2011)

Company Filing History:

goldMedal4 out of 1,207 
 
Hitachi Displays, Ltd.
 patents
silverMedal4 out of 42,740 
 
Hitachi, Ltd.
 patents
bronzeMedal2 out of 87 
 
Kasei Optonix, Ltd.
 patents
4. 2 out of 834,570 
Other
 patents
where one patent can have more than one assignee

Years Active: 1993-2011

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10 patents (USPTO):Explore Patents
1. 7990039 - Liquid crystal display device with cold cathode fluorescent lamp having phosphor film (2011-08-02),
2. 7671825 - Method of driving organic EL device and display device (2010-03-02),
3. 7656081 - Imaging device with specific phosphor (2010-02-02),
4. 6940221 - Display device (2005-09-06),
5. 6753099 - Phosphor and imaging device using the same (2004-06-22),
6. 6359380 - Color cathode ray tube with panel glass having a different light absorption characteristic from that of at least one outer surface layer provided thereon (2002-03-19),
7. 6077458 - Phosphor, and cathode-ray tube and display using the same (2000-06-20),
8. 5707549 - Phosphor, manufacturing method therefor, and cathode-ray tube using the (1998-01-13),
9. 5363013 - Phosphor and cathode-ray tube using the same (1994-11-08),
10. 5177401 - Phosphor and cathode-ray tube using the same (1993-01-05),

Title: The Innovations of Hidetsugu Matsukiyo

Introduction

Hidetsugu Matsukiyo is a prominent inventor based in Chiba, Japan. He has made significant contributions to the field of display technology, holding a total of 10 patents. His work primarily focuses on liquid crystal displays and organic electroluminescent devices.

Latest Patents

One of Matsukiyo's latest patents is for a liquid crystal display device that utilizes a cold cathode fluorescent lamp with a phosphor film. This innovative design includes a light-transmitting glass tube that is sealed with a rare gas and mercury. The phosphor film is created by mixing phosphors into a suspension made from butyl acetate and nitrocellulose, which is then applied to the inner surface of the glass tube. Another notable patent involves a method for driving organic EL devices and display devices. This method enhances the light-emitting efficiency of organic EL devices while preventing degradation, utilizing a unique voltage application method that incorporates various waveforms.

Career Highlights

Matsukiyo has had a distinguished career, working with notable companies such as Hitachi, Ltd. and Hitachi Displays, Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in display technology.

Collaborations

Throughout his career, Matsukiyo has collaborated with several talented individuals, including Masatoshi Shiiki and Yoshihiro Koseki. These collaborations have contributed to the advancement of technology in the display industry.

Conclusion

Hidetsugu Matsukiyo's contributions to display technology through his patents and collaborations have significantly impacted the industry. His innovative approaches continue to influence the development of advanced display devices.

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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