Chiba, Japan

Hiroyuki Kojima

This inventor holds 3 USPTO granted patents. Top assignees: Seiko Precision Inc., Seikosha Co., Ltd.. Active years: 1996-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Kojima. Retrieved from https://idiyas.com/inventor/hiroyuki-kojima-5zvpxtv3

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

Calculating rank

% Patents Active = 66.7

Average Co-Inventor Count = 2.3

ph-index = 2

Forward Citations = 57(Granted Patents)


Location History:

  • Chiba-Ken, JP (1996)
  • Chiba, JP (2008)

Company Filing History:


Years Active: 1996-2008

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3 patents (USPTO):Explore Patents

Title: Hiroyuki Kojima: Innovator in Inkjet Technology

Introduction

Hiroyuki Kojima is a notable inventor based in Chiba-Ken, Japan. He has made significant contributions to the field of inkjet technology, holding a total of 3 patents. His innovative designs have enhanced the functionality and efficiency of inkjet printers.

Latest Patents

Kojima's latest patents include advancements in inkjet printers and ink jet head blocks. One of his notable inventions is an inkjet printer that features a recording medium feeder, a printer that executes printing using ink discharged from a nozzle surface on a print head, and a cleaner that effectively maintains the nozzle surface. This cleaner includes a wiper blade unit that wipes the nozzle surface and a roller wiper unit that absorbs excess ink, ensuring high print quality. Another significant patent is the ink jet head block, which incorporates a cartridge case that reserves ink. This design allows for a streamlined assembly of the ink jet head and electric connecting member, optimizing the ink supply and ejection process.

Career Highlights

Throughout his career, Hiroyuki Kojima has worked with prominent companies such as Seiko Precision Inc. and Seikosha Co., Ltd. His experience in these organizations has contributed to his expertise in developing innovative printing technologies.

Collaborations

Kojima has collaborated with talented individuals in the industry, including Yukiharu Shimizu and Tsuyoshi Hayakawa. These partnerships have fostered a creative environment that has led to the development of cutting-edge technologies.

Conclusion

Hiroyuki Kojima's contributions to inkjet technology have made a lasting impact on the industry. His innovative patents and collaborative efforts continue to influence advancements in printing technology.

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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