Matsumoto, Japan

Katsumi Yamada

USPTO Granted Patents = 61 


 

Average Co-Inventor Count = 3.1

ph-index = 7

Forward Citations = 283(Granted Patents)

Forward Citations (Not Self Cited) = 281(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Saitama, JP (2008)
  • Nagano, JP (1999 - 2016)
  • Shiojiri, JP (2007 - 2016)
  • Tokyo, JP (2000 - 2022)
  • Kanagawa, JP (1987 - 2023)
  • Matsumoto, JP (2018 - 2024)

Company Filing History:


Years Active: 1987-2025

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Areas of Expertise:
Liquid Discharge Apparatus
Recording Apparatus
Medium-Discharging Device
Developing Device
Image Forming Apparatus
Image Reading Apparatus
Liquid Ejection System
Printer Technology
High-Strength Steel
Electro-Optical Device
Document Support Systems
Metal Inclusion Analysis
61 patents (USPTO):Explore Patents

Title: **Katsumi Yamada: A Pioneer in Liquid Discharge Innovations**

Introduction

Katsumi Yamada is a notable inventor based in Matsumoto, Japan, recognized for his extensive contributions to the field of recording apparatus technologies. With an impressive portfolio of 59 patents, Yamada has developed innovative solutions that significantly enhance the efficiency and functionality of liquid discharge systems.

Latest Patents

Yamada's recent inventions include a series of patents focused on a liquid discharge apparatus, waste liquid collecting unit, and waste liquid collecting method. One of the key features of these inventions is a recording apparatus that integrates a first absorbing member, designed to absorb waste liquid discarded from a discharge head. This innovative design is crucial for managing liquid waste effectively during the recording process. The apparatus also consists of a second absorbing member that captures the waste liquid directed from a cap, along with an accommodating section that secures this second absorbing member. Notably, the delivery section between the two absorbing members is designed with a downward inclination to facilitate efficient liquid transfer, which varies based on the inserted state of the accommodating section.

Career Highlights

Throughout his career, Katsumi Yamada has worked with leading technology firms, including Seiko Epson Corporation and Fuji Electric Co., Ltd. His roles in these organizations have allowed him to leverage his inventive skills, leading to the creation of groundbreaking technologies in liquid discharge systems.

Collaborations

Yamada has collaborated with talented individuals such as Keisuke Sasaki and Shintaro Miyamoto. These partnerships have contributed to the refinement and implementation of his innovative ideas, showcasing the power of teamwork in technological advancements.

Conclusion

Katsumi Yamada’s contributions to the field of patents, particularly in liquid discharge technologies, exemplify the spirit of innovation. His extensive patent portfolio not only reflects his ingenuity but also plays a vital role in advancing the efficiency and capability of recording apparatuses in various applications. Through his career and collaborations, Yamada continues to be a significant figure in the realm of innovations and inventions.

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