Ichihara, Japan

Hiroshi Kouno

This inventor holds 3 USPTO granted patents and 1 EPO patent. Top assignee: Mitsui Chemicals, Inc.. Active years: 2005-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Kouno. Retrieved from https://idiyas.com/inventor/hiroshi-kouno-ukqv2zz6

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


% Patents Active = 33.3


Average Co-Inventor Count = 3.9

ph-index = 2

Forward Citations = 23(Granted Patents)


Location History:

  • Sodegaura, JP (2005)
  • Ichihara, JP (2011 - 2013)

Company Filing History:


Years Active: 2005-2013

Loading Chart...
Loading Chart...
3 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Hiroshi Kouno in Propylene Glycol Production

Introduction: Hiroshi Kouno, an accomplished inventor based in Ichihara, Japan, has made significant strides in the field of chemical engineering. With a total of three patents to his name, Kouno's work primarily focuses on the efficient production of propylene glycol, a versatile compound widely used in various industries.

Latest Patents: Hiroshi Kouno's latest patents reflect his innovative approach to propylene glycol production. One of his notable inventions, titled "Method of Producing Propylene Glycol," outlines a unique process that involves catalytic hydrogenation of glycerol. This method utilizes a catalyst containing zinc oxide and elements such as copper or copper oxide, which, after a reduction process at temperatures between 180°C to 230°C in the presence of hydrogen, exhibits specific properties in X-ray diffraction patterns. Another significant patent is the "Process for Producing Propylene Glycol," which aims to create propylene glycol from glycerol without the need for gasifying glycerol, enhancing the overall efficiency of the production process.

Career Highlights: Kouno’s career is distinguished by his commitment to innovation in the chemical manufacturing sector. He is currently affiliated with Mitsui Chemicals, Inc., a leading company in the chemicals industry. His work has advanced the way propylene glycol is produced, reducing the complexity and energy requirements of traditional methods.

Collaborations: Throughout his career, Hiroshi Kouno has collaborated with notable colleagues like Shuji Ozawa and Naritoshi Yoshimura. Their joint efforts have fostered an environment of innovation and research, contributing to the field of chemical engineering and the development of new production processes.

Conclusion: Hiroshi Kouno’s contributions to the production of propylene glycol exemplify the spirit of innovation that drives advancements in chemical engineering. His patents not only improve manufacturing efficiency but also highlight the importance of collaboration and research in developing sustainable industrial practices.

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]
Loading…