Kanagawa, Japan

Ikuo Maeda

This inventor holds 32 USPTO granted patents and 1 published patent application and 15 EPO patents, primarily in Light Source Technology. Top assignees: Ricoh Company, Ltd., Fujitsu Corporation. Active years: 1979-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ikuo Maeda. Retrieved from https://idiyas.com/inventor/ikuo-maeda

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

USPTO Granted Patents = 32 

% Patents Active = 65.6

 

Average Co-Inventor Count = 2.4

ph-index = 8

Forward Citations = 229(Granted Patents)


Location History:

  • Tokyo, JP (1979)
  • Kawasaki, JP (1990 - 1996)
  • Ohta-ku, JP (2011)
  • Kanagawa-ken, JP (2013)
  • Sagamihara, JP (1999 - 2016)
  • Kanagawa, JP (1988 - 2022)

Company Filing History:


Years Active: 1979-2022

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Areas of Expertise:
Light Source Device
Image Projection
Illumination Device
Optical Systems
Color Changing Section
Wavelength Converter
Polarization Conversion
Imaging Device
Optoelectronic Sensing
Multibeam Optical Pickup
Projection Device
Brightness Adjustment
32 patents (USPTO):Explore Patents

Title: Innovative Contributions of Ikuo Maeda in Light Source Technology

Introduction

Ikuo Maeda, a distinguished inventor based in Kanagawa, Japan, holds an impressive portfolio of 32 patents. His pioneering innovations in light source devices and image projection technology have significantly influenced the fields of optics and display systems.

Latest Patents

Maeda's most recent patents showcase groundbreaking advancements. One of his notable inventions is a light source device and projector that incorporates a phosphor and a color-changing section. This invention includes a light source that generates blue, red, or green light, a phosphor that emits fluorescence in two colors other than that of the light source, and a color-changing section that regularly modifies the emitted fluorescence to enhance image projection. Additionally, he has developed a light source apparatus that comprises multiple laser sets and a corresponding reflective unit, optimizing light injection for superior image quality.

Career Highlights

Throughout his career, Ikuo Maeda has contributed to leading technology companies, notably Ricoh Company, Ltd. and Fujitsu Corporation. His work in these organizations has been pivotal in advancing optical technologies and developing new applications that leverage his inventive spirit.

Collaborations

Maeda's innovative journey has also been marked by significant collaborations. He has worked alongside esteemed colleagues such as Kazuhiro Fujita and Tatsuya Takahashi, contributing to a vibrant exchange of ideas and fostering advancements in the technology sector.

Conclusion

Ikuo Maeda's extensive patent portfolio and his impactful contributions to light source technology underscore his role as a key innovator in the industry. His work continues to influence a variety of applications, enhancing the way we perceive and interact with visual content. As technology evolves, Maeda's innovations will likely play a crucial role in shaping future advancements.

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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