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For the Inventor, By the Inventor

Kyotanabe, Japan

Masanori Shimizu

This inventor holds 50 USPTO granted patents and 8 EPO patents, primarily in LED Lighting Technology (CPC class F21K). Top assignees: Matsushita Electric Industrial Co., Ltd., Panasonic Corporation, Panasonic Intellectual Property Management Co., Ltd.. Active years: 1995-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masanori Shimizu. Retrieved from https://idiyas.com/inventor/masanori-shimizu

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 = 80.0

 

Average Co-Inventor Count = 3.5

ph-index = 24

Forward Citations = 2,481(Granted Patents)

Forward Citations (Not Self Cited) = 2,419(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Osaka, JP (1995)
  • Kyotanabe, JP (2001 - 2010)
  • Kyoto, JP (2000 - 2019)

Company Filing History:

goldMedal43 out of 27,375 
 
Matsushita Electric Industrial Co., Ltd.
 patents
silverMedal5 out of 16,454 
 
Panasonic Corporation
 patents
bronzeMedal2 out of 13,338 
 
Panasonic Intellectual Property Management Co., Ltd.
 patents

Years Active: 1995-2019

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Areas of Expertise:
LED Lamp
LED Illumination Device
Backlight Apparatus
Optical Semiconductor
Lighting Device
Light Emitting Diode
Card-Type Illumination
Multichip LED
Lighting Unit
Printed Wiring Board
Optical Diffusion Layer
50 patents (USPTO):Explore Patents
1. RE47591 - LED lamp, LED illumination device, and LED module (2019-09-02),
2. 9062851 - LED lamp, LED illumination device, and LED module (2015-06-23),
3. 8534857 - Backlight apparatus, light source for backlight apparatus, and display apparatus using the same (2013-09-17),
4. 8405307 - LED lamp (2013-03-26),
5. 7791274 - LED lamp (2010-09-07),
6. 7671464 - Lighting device having a lighting unit with an optical semiconductor bare chip mounted on printed wiring board (2010-03-02),
7. 7514867 - LED lamp provided with optical diffusion layer having increased thickness and method of manufacturing thereof (2009-04-07),
8. 7397177 - LED lamp and method for manufacturing the same (2008-07-08),
9. 7375381 - LED illumination apparatus and card-type LED illumination source (2008-05-20),
10. D565757 - Light emitting diode lamp unit (2008-04-01),
11. 7344296 - Socket for led light source and lighting system using the socket (2008-03-18),
12. D562473 - Light emitting diode lamp unit (2008-02-19),
13. 7322718 - Multichip LED lighting device (2008-01-29),
14. 7282853 - LED lamp (2007-10-16),
15. 7259403 - Card-type LED illumination source (2007-08-21),

Title: The Innovative Journey of Masanori Shimizu

Introduction: Masanori Shimizu, an inventive mind hailing from Kyotanabe, Japan, has made significant contributions to the field of LED technology. With a remarkable portfolio of 50 patents, Shimizu has established himself as a notable inventor in the realm of modern lighting solutions. His work has significantly enhanced the efficiency and color quality of LED lamps.

Latest Patents: Among Shimizu's latest inventions are advanced LED lamp technologies, including an LED lamp that delivers a strong red color with a natural appearance. The innovative structure of this LED lamp comprises an LED module and a specially designed filter. The LED module features a blue LED that emits light primarily in the 440 nm to 460 nm wavelength band. This blue LED is complemented by a green/yellow phosphor that is activated by the blue light, as well as a red phosphor that responds to both the blue LED and the green/yellow phosphor. The associated filter serves to diminish the spectral radiation intensity within the 570 nm to 590 nm wavelength range, optimizing the quality of light emitted by the module.

Career Highlights: Masanori Shimizu has had an illustrious career, with significant tenures at renowned companies such as Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His work at these companies has facilitated the advancement of LED technology, showcasing his ability to meld creativity with practical application.

Collaborations: Throughout his career, Shimizu has collaborated with prominent individuals like Nobuyuki Matsui and Tetsushi Tamura. These partnerships have fostered an environment of innovation, allowing for the exchange of ideas and techniques that have propelled his inventions to new heights.

Conclusion: In summary, Masanori Shimizu's innovative spirit and dedication to advancing LED technology have resulted in a commendable array of patents. His work not only highlights his capabilities as an inventor but also contributes substantial advancements in lighting technology that can have a lasting impact on the industry.

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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