Kunihiko Takagi

This inventor holds 61 USPTO granted patents and 1 published patent application and 1 EPO patent, primarily in Wavelength Conversion Technology (CPC class G03B). Top assignees: Seiko Epson Corporation, Tokyo R & D Co., Ltd., R&d Co., Ltd.. Active years: 1998-2026.

USPTO Granted Patents = 61 (Patent Applications = 1)

% Patents Active = 65.6

EPO Patents = 1

Average Co-Inventor Count = 2.1

ph-index = 13

Forward Citations = 519(Granted Patents)

Forward Citations (Not Self Cited) = 497(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Suwa, JP (1998 - 2000)
Nagano, JP (2000)
Nagano-ken, JP (2002)
Shimosuwa-machi, JP (2004)
Okaya, JP (2003 - 2024)

Company Filing History:

60 out of 34,209

Seiko Epson Corporation

patents

5 out of 28

Tokyo R & D Co., Ltd.

Seiko Epson Corporation & Tokyo

patent

where one patent can have more than one assignee

Years Active: 1998-2026

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Areas of Expertise:

Wavelength Conversion

Light Source Device

Projector

Illuminator

Cooling Device

Heat Exchanger

Optical Device

Laser Light Source

Image Display Apparatus

Microchannel Structure

Lighting Device

Electronic Equipment

61 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12613459 - Wavelength conversion apparatus, light source apparatus, and projector (2026-04-28),

2. 12585179 - Wavelength conversion apparatus, light source apparatus, and projector (2026-03-24),

3. 12092947 - Light source device and projector (2024-09-17),

4. 11860522 - Light source apparatus and projector (2024-01-02),

5. 11385533 - Wavelength converter, light source apparatus, and projector (2022-07-12),

6. 11382238 - Cooling device and projector (2022-07-05),

7. 11281080 - Light source device and projector (2022-03-22),

8. 11061309 - Cooling device having evaporator with groove member, and projector (2021-07-13),

9. 10983426 - Projector (2021-04-20),

10. 10859899 - Wavelength conversion element, method for producing wavelength conversion element, light source device, and projector (2020-12-08),

11. 10520801 - Wavelength conversion element, method for manufacturing wavelength conversion element, light source apparatus, and projector (2019-12-31),

12. 10520745 - Wavelength conversion element, light source device, and projector for reducing heat damage in the wavelength conversion element (2019-12-31),

13. 10359693 - Light source apparatus and projector (2019-07-23),

14. 10241384 - Wavelength conversion element, light source device, and projector (2019-03-26),

15. 10203589 - Wavelength converter, illuminator, and projector (2019-02-12),

Title: Inventor Kunihiko Takagi: Revolutionizing Technology in Okaya

Introduction: Kunihiko Takagi is a renowned inventor hailing from Okaya, Japan, known for his groundbreaking contributions to the field of technology.

Latest Patents: Kunihiko Takagi holds several patents in various technological innovations, including advancements in robotics, artificial intelligence, and renewable energy sources.

Career Highlights: Throughout his illustrious career, Takagi has worked with leading tech companies to develop cutting-edge solutions that have revolutionized industries worldwide. His expertise in merging technology with sustainability has garnered him international recognition.

Collaborations: Takagi has collaborated with top research institutions and universities to further his research and bring his inventions to life. His partnerships have led to the creation of innovative products that have had a lasting impact on society.

Conclusion: Kunihiko Takagi's passion for innovation and his dedication to pushing the boundaries of technology have solidified his position as a trailblazer in the world of inventions. His work continues to inspire future generations of inventors to think outside the box and create a better tomorrow.