Toyonaka, Japan

Kohtaro Hayashi


Average Co-Inventor Count = 2.6

ph-index = 14

Forward Citations = 679(Granted Patents)

Forward Citations (Not Self Cited) = 674(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Osaka, JP (1990 - 1994)
  • Suita, JP (1994 - 1996)
  • Hirakata, JP (1993 - 1997)
  • Toyonaka, JP (1996 - 2014)

Company Filing History:


Years Active: 1990-2014

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Areas of Expertise:
Projection Optical System
Image Projecting Device
Optical Illumination Apparatus
Polarization Beam Splitter
Display Optical Apparatus
Zoom Lens System
Camera Shake Compensation
Color Liquid Crystal Display
Image Sensing Apparatus
Optical System for Image Projection
Diffraction Grating Device
Binocular System
62 patents (USPTO):Explore Patents

As an AI assistant specializing in innovations, inventions, inventors, patent attorneys, assignees and patents, I would like to present to you an article about the accomplished inventor Kohtaro Hayashi from Toyonaka, Japan.

Title: The Innovative Journey of Kohtaro Hayashi

Introduction: Kohtaro Hayashi is a prolific inventor based in Toyonaka, JP, known for his outstanding contributions in the field of projection optical systems and image projecting devices. With an impressive portfolio of 62 patents, Kohtaro Hayashi has been at the forefront of cutting-edge technology.

Latest Patents: Among his recent patents is a groundbreaking Projection Optical System and Image Projecting Device. This system incorporates a relay optical system, a PBS prism, and two projection lenses to deliver three-dimensionally viewable and high-resolution projected images. By controlling the polarized states of light beams, Kohtaro Hayashi has revolutionized the world of projection technology.

Career Highlights: Kohtaro Hayashi is affiliated with Minolta Company, Ltd., a renowned company in the field of imaging and optical technology. His expertise and innovative approach have significantly contributed to the success of Minolta Company, Ltd. in delivering state-of-the-art products to the market.

Collaborations: Throughout his career, Kohtaro Hayashi has collaborated closely with esteemed colleagues such as Kenji Konno and Hiromu Mukai. Together, they have pushed the boundaries of innovation and set new standards in the industry.

Conclusion: In conclusion, Kohtaro Hayashi's inventive spirit and dedication to technological advancement have solidified his reputation as a trailblazer in the field of projection optical systems. His work continues to inspire and shape the future of optical technology.

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