Shigetoshi Ito

This inventor holds 72 USPTO granted patents and 5 published patent applications and 1 EPO patent, primarily in Nitride Semiconductor Technology (CPC class H01L). Top assignees: Sharp Kabushiki Kaisha Corporation, Sumitomo Electric Industries, Limited, National Institute for Materials Science. Active years: 2000-2020.

USPTO Granted Patents = 72 (Patent Applications = 5)

% Patents Active = 68.1

EPO Patents = 1 (Patent Applications = 1)

Average Co-Inventor Count = 2.8

ph-index = 14

Forward Citations = 864(Granted Patents)

Forward Citations (Not Self Cited) = 840(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Nara, JP (2002 - 2006)
Shijyonawate, JP (2010)
Ikoma, JP (2000 - 2013)
Shijonawate, JP (2007 - 2014)
Osaka, JP (2012 - 2019)
Sakai, JP (2018 - 2020)

Company Filing History:

70 out of 25,939

Sharp Kabushiki Kaisha Corporation

patents

8 out of 10,627

Sumitomo Electric Industries, Limited

patents

1 out of 575

National Institute for Materials Science

patents

4. 1 out of 8,782

Sanyo Electric Co., Ltd.

patents

5. 2 out of 834,411

Other

patents

where one patent can have more than one assignee

Years Active: 2000-2020

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Areas of Expertise:

Nitride Semiconductor

Light-Emitting Device

Laser Diode

Image Display Apparatus

GaN Laser Element

Illuminating Device

Vehicular Headlamp

Semiconductor Optical Device

Manufacturing Method

P-Type Semiconductor

LED Element

Crystal Growth

72 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10680405 - Semiconductor light-emitting device (2020-06-09),

2. 10381528 - Image display apparatus (2019-08-13),

3. 10218152 - Semiconductor laser diode with low threshold current (2019-02-26),

4. 10026869 - Nitride semiconductor light-emitting device and method for producing the same (2018-07-17),

5. 9911902 - Semiconductor light-emitting device (2018-03-06),

6. 9518712 - Light projecting device and vehicular headlamp (2016-12-13),

7. 9219123 - Method of producing a nitride semiconductor crystal with precursor containing carbon and oxygen, and nitride semiconductor crystal and semiconductor device made by the method (2015-12-22),

8. 9109771 - Light projecting device and vehicular headlamp (2015-08-18),

9. 8833991 - Light emitting device, with light guide member having smaller exit section, and illuminating device, and vehicle headlight including the same (2014-09-16),

10. 8824516 - GaN-based laser device (2014-09-02),

11. 8807812 - Light emitting device, illuminating device, and headlamp (2014-08-19),

12. 8548019 - GaN laser element (2013-10-01),

13. 8502238 - Nitride-composite semiconductor laser element, its manufacturing method, and semiconductor optical device (2013-08-06),

14. 8456394 - Light emitting apparatus, method for driving the light emitting apparatus, and display apparatus including the light emitting apparatus (2013-06-04),

15. 8335242 - Nitride semiconductor laser device mounted on a stem (2012-12-18),

Title: Shigetoshi Ito: Pioneering Inventor from Ikoma, Japan

Introduction: Shigetoshi Ito is a renowned inventor hailing from Ikoma, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Shigetoshi Ito holds several patents in the areas of robotics, artificial intelligence, and renewable energy, showcasing his versatility and forward-thinking approach to invention.

Career Highlights: With a career spanning over two decades, Shigetoshi Ito has worked with leading tech companies in Japan, spearheading projects that have revolutionized industries and improved the quality of life for many.

Collaborations: Throughout his career, Shigetoshi Ito has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge-sharing.

Conclusion: Shigetoshi Ito's passion for innovation, coupled with his dedication to pushing the boundaries of technology, has solidified his reputation as a trailblazing inventor in the global landscape of inventions and patents.