Kanagawa, Japan

Hironobu Narui

USPTO Granted Patents = 50 

 

Average Co-Inventor Count = 3.9

ph-index = 8

Forward Citations = 210(Granted Patents)

Forward Citations (Not Self Cited) = 194(Dec 10, 2025)


Inventors with similar research interests:


Company Filing History:


Years Active: 1992-2020

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Areas of Expertise:
Surface Light Emitting Semiconductor Laser
Nitride-Based III-V Group Compound Semiconductor
Optical Semiconductor Apparatus
Vertical-Cavity Surface-Emitting Laser
Long-Wavelength Semiconductor Light Emitting Device
Photoelectric Conversion Element
Thin Film-Forming Apparatus
Heat Emission Apparatus
Triangular Pyramidal Semiconductor Structure
Semiconductor Laser Device
Bidirectional Communication System
Optical Device
50 patents (USPTO):Explore Patents

Title: Hironobu Narui: Innovator in Semiconductor Laser Technologies

Introduction: Hironobu Narui, a prominent inventor based in Kanagawa, Japan, has made significant contributions to the field of semiconductor laser technologies. With an impressive portfolio of 50 patents to his name, Narui continues to push the boundaries of innovation through his work.

Latest Patents: Among his latest inventions is a groundbreaking surface light emitting semiconductor laser element. This technology features a substrate, lower and upper reflectors, an active layer, and a complex refractive index distribution structure. The design includes a compound semiconductor layer that reveals the upper reflector through a first opening, along with a metal film that has a second opening. This intricate arrangement allows for the emission of laser light in a single-peak transverse mode, showcasing Narui's inventive prowess and commitment to advancing laser technologies.

Career Highlights: Throughout his career, Hironobu Narui has established himself as a key figure in innovations at Sony Corporation. His dedication to research and development has not only led to numerous patents but has also positioned him as a respected inventor in the industry.

Collaborations: Narui has worked closely with notable colleagues, including Nobukata Okano and Yoshiaki Watanabe. Their collaborations reflect a team-oriented approach to innovation, fostering an environment where groundbreaking ideas can flourish.

Conclusion: Hironobu Narui's contributions to semiconductor laser technology underline his role as a leading inventor. With continued advancements in his field, Narui's innovations will likely inspire future developments and enhance various applications of laser technology in the years to come.

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