Katsuta, Japan

Keiji Kunimi

This inventor holds 2 USPTO granted patents. Top assignees: Hitachi Koki Co., Ltd., Hitachi, Ltd.. Active years: 1992-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiji Kunimi. Retrieved from https://idiyas.com/inventor/keiji-kunimi-7mgnreym

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 2

Forward Citations = 35(Granted Patents)


Location History:

  • Katsuta, JP (1992)
  • Hitachinaka, JP (2001)

Company Filing History:


Years Active: 1992-2001

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2 patents (USPTO):Explore Patents

Title: Keiji Kunimi: Innovator in Ink Jet Technology

Introduction

Keiji Kunimi is a notable inventor based in Katsuta, Japan. He has made significant contributions to the field of ink jet technology, holding a total of 2 patents. His work focuses on improving the accuracy and efficiency of ink ejection in printing devices.

Latest Patents

One of his latest patents is an "Ink jet printer using piezoelectric elements with improved ink droplet impinging accuracy." This invention addresses the variations in characteristics of piezoelectric elements that can affect the speed of ink droplet ejection. By utilizing a shared driver and individual discharge control circuits for each piezoelectric element, Kunimi's design synchronizes the discharge of ink, enhancing the overall performance of the ink recording device.

Another significant patent is the "Color image transferring method and apparatus." This invention involves selecting threshold matrix data to adjust the tone of color image data on recording paper. By correcting variations caused by mechanical and electrical factors, this method improves the transference of image data, ensuring high-quality prints.

Career Highlights

Throughout his career, Kunimi has worked with prominent companies such as Hitachi Koki Co., Ltd. and Hitachi, Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in ink jet technology.

Collaborations

Kunimi has collaborated with notable coworkers, including Takashi Sekino and Kazuo Shimizu. Their combined expertise has contributed to advancements in the field of printing technology.

Conclusion

Keiji Kunimi's contributions to ink jet technology demonstrate his commitment to innovation and improvement in printing devices. His patents reflect a deep understanding of the technical challenges in the industry and offer solutions that enhance printing accuracy and quality.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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