Yokohama, Japan

Ryoichi Koizumi


Average Co-Inventor Count = 3.5

ph-index = 11

Forward Citations = 365(Granted Patents)


Location History:

  • Hiratsuka, JP (1991)
  • Atsugi, JP (1993 - 1998)
  • Yokohama, JP (1991 - 2011)

Company Filing History:


Years Active: 1991-2011

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20 patents (USPTO):Explore Patents

Title: Innovations and Contributions of Ryoichi Koizumi

Introduction: Ryoichi Koizumi, an accomplished inventor based in Yokohama, Japan, has made significant strides in the field of liquid ejection technology. With a remarkable portfolio of 20 patents, his work has greatly influenced the development of advanced recording methods for various applications, particularly in the printing industry.

Latest Patents: Among Koizumi's latest innovations are two noteworthy patents that showcase his expertise. The first patent is for a liquid ejection head and liquid ejection method, which efficiently ejects small-volume droplets from ejection openings. This method allows droplets to combine on the fly into a larger droplet, minimizing the impact of air flows and enhancing printing accuracy by reducing droplet landing position deviations. The second patent involves a liquid jet recording head equipped with a controller for controlling temperature distribution. This technology enables more precise temperature corrections during the recording process to prevent unwanted ejections of liquid, ensuring high-quality outputs.

Career Highlights: Ryoichi Koizumi has dedicated his professional career to Canon Kabushiki Kaisha, where he has played a crucial role in advancing the company's innovations in printing technology. His contributions have positioned Canon as a leader in the competitive landscape of liquid recording technologies.

Collaborations: Throughout his career, Koizumi has collaborated with talented professionals such as Asao Saito and Hiroyuki Ishinaga. These partnerships have fostered a creative environment that encourages innovation and allows for the sharing of ideas, ultimately leading to breakthroughs in their field.

Conclusion: Ryoichi Koizumi's impressive body of work and his commitment to innovation have not only benefitted Canon but also contributed to the broader technological advancements in liquid ejection methods. As he continues to push the boundaries of invention, Koizumi's legacy will likely inspire future generations of inventors and innovators.

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