Minamatashi, Japan

Masakazu Hatakeyama

This inventor holds 2 USPTO granted patents. Top assignee: Chisso Corporation. Active years: 1989-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masakazu Hatakeyama. Retrieved from https://idiyas.com/inventor/masakazu-hatakeyama

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 = 5(Granted Patents)


Location History:

  • Minamata, JP (1989)
  • Minamatashi, JP (1991)

Company Filing History:


Years Active: 1989-1991

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2 patents (USPTO):Explore Patents

Title: Masakazu Hatakeyama: Innovator in Food Preservation and Plant Disease Prevention

Introduction: Masakazu Hatakeyama is a noteworthy inventor based in Minamatashi, Japan. With a total of two patents to his name, Hatakeyama has made significant contributions to the fields of food preservation and agricultural science.

Latest Patents: Among his recent innovations, Hatakeyama's patents include a method for treating food to control the growth of yeasts. This invention presents ethanol preparations that demonstrate superior capabilities for food preservation, utilizing a polylysine or a polylysine salt in combination with anhydrous ethanol or a water-containing ethanol at concentrations of 30% by weight or higher. Another significant patent focuses on an agent for preventing plant virus diseases, targeting issues such as tobacco mosaic viruses and potato viruses. This agent is derived from a new formulation that incorporates polylysine as its active component, which can be either α-polylysine or β-polylysine.

Career Highlights: Hatakeyama is currently associated with Chisso Corporation, where his innovative research and developments have been pivotal in enhancing food safety and agricultural resilience. His work underscores the critical intersections between biotechnology and real-world applications that benefit both consumers and the agricultural sector.

Collaborations: Throughout his career, Hatakeyama has collaborated with esteemed colleagues such as Masahiro Fujii and Jun Hiraki. These partnerships exemplify the synergy that can arise from working within dynamic research teams, ultimately leading to groundbreaking innovations.

Conclusion: Masakazu Hatakeyama's contributions to invention and innovation stand as a testament to the power of creativity and collaboration in science. His patents not only address important challenges in food preservation and plant health but also pave the way for future advancements in these critical areas.

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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