Kanagawa, Japan

Shosuke Haraguchi


Average Co-Inventor Count = 1.8

ph-index = 9

Forward Citations = 255(Granted Patents)


Location History:

  • Kanagawa-ken, JP (1997 - 2000)
  • Kanagawa, JP (1984 - 2006)
  • Yokohama, JP (1982 - 2009)

Company Filing History:


Years Active: 1982-2009

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33 patents (USPTO):Explore Patents

Title: Innovator Spotlight: Shosuke Haraguchi in the Field of Optical Technology

Introduction: Shosuke Haraguchi is a prominent inventor based in Kanagawa, Japan, known for his remarkable contributions to optical apparatus technology. With an impressive portfolio of 33 patents, he has played a significant role in advancing the capabilities of viewfinder systems and display technology in modern photography.

Latest Patents: Haraguchi's recent innovations include groundbreaking patents such as the Optical Apparatus and Viewfinder Display Apparatus. The Optical Apparatus features a unique viewfinder optical system that incorporates a Fresnel lens capable of converging light onto a focusing screen, alongside multiple microprism groups strategically positioned to correspond with focusing areas. His Viewfinder Display Apparatus enhances photographers' experience by enabling superimposed displays that maintain excellent visibility without causing discomfort. This apparatus is equipped with a specialized eyepiece lens unit and illumination units designed to optimize the reflection and transmission of light within the viewfinder.

Career Highlights: Shosuke Haraguchi is currently affiliated with Canon Kabushiki Kaisha, a leading multinational company renowned for its pioneering work in imaging and optical technologies. Throughout his career at Canon, Haraguchi has consistently focused on developing innovative optical solutions that meet the evolving needs of photographers and videographers alike.

Collaborations: During his tenure at Canon, Haraguchi has worked alongside esteemed colleagues Yoichi Tosaka and Masaharu Kawamura. Their collaborative efforts have further propelled the advancements in optical technology, leading to the creation of highly effective and user-friendly photographic equipment.

Conclusion: Shosuke Haraguchi’s contributions to optical technology and his impressive array of patents highlight his expertise and commitment to innovation. As he continues to push the boundaries of what is possible in the realm of photography and optical apparatus, his work will undoubtedly leave a lasting impact on the industry.

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