Tokyo, Japan

Kazuyasu Takenaka

This inventor holds 38 USPTO granted patents and 1 published patent application and 8 EPO patents, primarily in Liquid Ejection Technology. Top assignee: Sony Corporation. Active years: 1996-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuyasu Takenaka. Retrieved from https://idiyas.com/inventor/kazuyasu-takenaka

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

USPTO Granted Patents = 38 

% Patents Active = 5.3


Average Co-Inventor Count = 3.8

ph-index = 7

Forward Citations = 206(Granted Patents)


Location History:

  • Chiba, JP (1996)
  • Kanagawa, JP (2004 - 2011)
  • Tokyo, JP (2007 - 2012)

Company Filing History:


Years Active: 1996-2012

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Areas of Expertise:
Liquid Ejection Head
Droplet Discharging Apparatus
Liquid Detecting Apparatus
Ejection Control Device
Maintenance Method
Liquid Discharging Device
Printer Head
Liquid Emitting Apparatus
Remaining-Liquid-Amount Display
Liquid Ejecting Method
Liquid Discharge Method
Density Adjusting Method
38 patents (USPTO):Explore Patents

Title: Kazuyasu Takenaka – Innovator in Liquid Ejection Technology

Introduction

Kazuyasu Takenaka is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the field of liquid ejection technology. With an impressive portfolio of 38 patents, Takenaka continues to drive innovation and advancement within the industry.

Latest Patents

His latest patents include the development of a liquid ejection head, liquid ejection apparatus, and a manufacturing method for the liquid ejection head. The innovative design features an energy-generating element on a semiconductor substrate, complemented by a barrier layer that forms a liquid chamber surrounding the energy-generating element. This setup allows for the precise ejection of liquid droplets through a nozzle sheet, enhancing the performance and efficiency of liquid ejection systems. Additionally, Takenaka holds a patent for a maintenance method for discharging heads, which outlines a procedure for continuously discharging droplets in a systematic manner for improved maintenance and operation of droplet discharging apparatuses.

Career Highlights

Takenaka's career has been marked by his association with Sony Corporation, a leading global technology company. His work there has focused on advancing technologies within the realm of liquid ejection, positioning him as a key player in the company's innovation efforts.

Collaborations

Throughout his career, Takenaka has collaborated with notable colleagues, including Takeo Eguchi and Yuichiro Ikemoto. Their combined expertise has contributed to many successful projects and patents in the field of liquid ejection technology.

Conclusion

Kazuyasu Takenaka's dedication to innovation in liquid ejection systems exemplifies the spirit of creativity and technological advancement in today's industry. His outstanding contributions through his patents and collaborations continue to shape the future of liquid ejection 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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