Yokohama, Japan

Katsutoshi Nakagawa

This inventor holds 24 USPTO granted patents and 7 EPO patents, primarily in LED Lighting Technology. Top assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd., Toshiba Infrastructure Systems & Solutions Corporation. Active years: 2001-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsutoshi Nakagawa. Retrieved from https://idiyas.com/inventor/katsutoshi-nakagawa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 83.3

 

Average Co-Inventor Count = 3.2

ph-index = 6

Forward Citations = 92(Granted Patents)


Location History:

  • Kanagawa-ken, JP (2003 - 2015)
  • Tokyo, JP (2018)
  • Yokohama, JP (2001 - 2021)
  • Fuchu, JP (2022)

Company Filing History:


Years Active: 2001-2025

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Areas of Expertise:
LED Lighting
White LED Lamp
Light Emitting Device
Phosphor
Backlight
Display Device
Illumination Device
Magnetic Ink
Soft Magnetic Alloy
Power Supply IC
Validity Determination
Actuator
24 patents (USPTO):Explore Patents

Title: Celebrating Innovation: The Contributions of Katsutoshi Nakagawa

Introduction

Katsutoshi Nakagawa, a prolific inventor based in Yokohama, Japan, has made significant strides in the field of technology with a remarkable portfolio of 23 patents. His innovative ideas have left a considerable mark on several industries, particularly in communication systems and lighting technologies.

Latest Patents

Among his recent inventions, Nakagawa has developed a sophisticated controller designed to determine transmission rights and manage communication timing between nodes. This controller enhances real-time communications by leveraging a transmission right map that distinguishes nodes capable of transmitting information, ensuring efficient data sharing.

Additionally, he has created an advanced white LED lamp incorporating a light-emitting diode chip that emits primary light at wavelengths between 360 nm to 420 nm. This lamp features a phosphor layer that transforms the primary light into secondary light, providing illumination while optimizing energy efficiency, with output measured at 0.4 mW/lm or less.

Career Highlights

Katsutoshi Nakagawa's career includes significant tenures at prestigious companies such as Kabushiki Kaisha Toshiba and Toshiba Materials Co., Ltd. His work at these institutions has facilitated advancements in various technologies and has contributed to their reputation for innovation.

Collaborations

Throughout his career, Nakagawa has collaborated with notable colleagues, including Yasumasa Ooya and Yasuhiro Shirakawa. These partnerships have allowed for a rich exchange of ideas and have propelled the development of cutting-edge technologies within their respective fields.

Conclusion

In summary, Katsutoshi Nakagawa stands out as an influential inventor whose contributions to technology and innovations in communication and lighting continue to shape the future. With a proven track record of successful patents and collaborations, he remains a key figure in the ongoing evolution of these industries.

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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