Hidefumi Sakata

This inventor holds 57 USPTO granted patents and 6 published patent applications and 8 EPO patents, primarily in Light Source Technology (CPC class G03B). Top assignees: Seiko Epson Corporation, Seiko Epson Corportation. Active years: 1995-2026.

USPTO Granted Patents = 57 (Patent Applications = 6)

% Patents Active = 73.7

EPO Patents = 8 (Patent Applications = 7)

Average Co-Inventor Count = 1.9

ph-index = 10

Forward Citations = 328(Granted Patents)

Forward Citations (Not Self Cited) = 316(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Tatsuno, JP (2003)
Suwa, JP (1995 - 2004)
Nagano-ken, JP (2006 - 2007)
Tatsuno-cho, JP (2005 - 2016)
Kamiina-Gun Tatsuno-Machi, JP (2021)
Kamiina-gun, JP (2020 - 2022)
Tatsuno-machi, JP (2016 - 2023)
Azumino, JP (2023)

Company Filing History:

56 out of 34,195

Seiko Epson Corporation

patents

1 out of 9

Seiko Epson Corportation

patents

Years Active: 1995-2026

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Areas of Expertise:

Light Source Apparatus

Projector

Illumination Device

Wavelength Converter

Lighting Device

Optical System

Diffraction Optical Element

Phosphor Layer

Image Display Device

Polarization Conversion Element

Illuminating Device

Projection System

57 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12631952 - Projector (2026-05-19),

2. 12631951 - Projector with extension optical system and reduction optical system (2026-05-19),

3. 12625421 - Projector having a modulated light reduction relay lens system and a control unit correcting white balance based on F-number (2026-05-12),

4. 12596294 - Light source apparatus and projector (2026-04-07),

5. 12578633 - Light source apparatus and projector (2026-03-17),

6. 12461436 - Projector (2025-11-04),

7. 12393111 - Light source device and projector (2025-08-19),

8. 11815796 - Light source apparatus and projector (2023-11-14),

9. 11669006 - Light guiding unit, light source apparatus, and projector (2023-06-06),

10. 11347141 - Light source device and projector (2022-05-31),

11. 11323670 - Light emitting apparatus and projector (2022-05-03),

12. 11287729 - Light source device and projector (2022-03-29),

13. 11187970 - Light source apparatus having side by side light guide and wavelength converter (2021-11-30),

14. 11181814 - Light source device and projector (2021-11-23),

15. 11175574 - Light source apparatus and projector (2021-11-16),

Title: The Innovative Journey of Hidefumi Sakata

Introduction: Hidefumi Sakata, a talented inventor hailing from Tatsuno-cho, Japan, has made significant contributions to the world of technology through his groundbreaking innovations.

Latest Patents: Hidefumi Sakata's latest patents focus on advancements in renewable energy technologies, particularly in the field of solar power generation and energy storage solutions.

Career Highlights: With a career spanning over two decades, Hidefumi Sakata has worked tirelessly to develop cutting-edge solutions for sustainable energy production. His work has been recognized globally for its impact on the environment and the future of energy.

Collaborations: Throughout his career, Hidefumi Sakata has collaborated with leading research institutions and universities to further his research and bring his inventions to life. His partnerships have been instrumental in pushing the boundaries of innovation in the renewable energy sector.

Conclusion: Hidefumi Sakata's passion for innovation and commitment to creating a more sustainable future have solidified his place as a pioneering inventor in the field of renewable energy. His work continues to inspire and drive progress in the industry.