Kanagawa, Japan

Masamichi Yamada

USPTO Granted Patents = 119 


 

Average Co-Inventor Count = 2.8

ph-index = 15

Forward Citations = 794(Granted Patents)

Forward Citations (Not Self Cited) = 614(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Yokohoma, JP (1983)
  • Kanagawa-ken, JP (2003 - 2005)
  • Chiyoda-ku, JP (2007)
  • Yokohama, JP (1983 - 2013)
  • Hitachinaka, JP (1998 - 2016)
  • Tokyo, JP (2008 - 2023)
  • Kanagawa, JP (2000 - 2024)

Company Filing History:


Years Active: 1983-2025

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Areas of Expertise:
Image Projection Apparatus
Light Guide Member
Cooling Apparatus
Optical System
Display Device
Ocular Symptom Improvement
Lighting Unit
Projection Lens Device
Electronic Device
Dustproof Member
Stand System
Auto-Focus Device
119 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Masamichi Yamada

Introduction: Masamichi Yamada, based in Kanagawa, Japan, has made significant strides in the field of optical technologies. With an impressive portfolio of 118 patents, Yamada's work reflects a deep commitment to innovation and advancement in optical systems and display devices.

Latest Patents: Among his latest patents, two stand out for their innovative designs: the "Propagation Optical System and Virtual Image Display Device" and the "Display Stand and Display Stand System." The propagation optical system involves a first optical system, an intermediate optical element with a non-rotationally symmetric curved surface, and a second optical system. This configuration is designed to form an intermediate image that enhances the display quality of virtual images. The display stand, on the other hand, incorporates a unique mechanism that allows for the smooth rotation and adjustment of displays, showcasing Yamada's dedication to functional and user-friendly designs.

Career Highlights: Yamada has had a remarkable career, holding positions at prominent companies such as Ricoh Company, Ltd. and Hitachi, Ltd. His work in these organizations has been pivotal in advancing optical technologies and display systems, earning him recognition in the industry.

Collaborations: Over the years, Yamada collaborated with notable professionals, including his coworkers Hideo Kanai and Naoyuki Ishikawa. These partnerships have contributed to the development of innovative solutions in optical and display technologies.

Conclusion: Masamichi Yamada's contributions to the field of optical technology exemplify the spirit of innovation. His extensive patent portfolio and collaborative efforts with leading companies and professionals underline his influential role in the advancement of display systems and optical solutions. As technology continues to evolve, Yamada's legacy as an inventor and innovator is sure to inspire future developments in the industry.

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