Tokyo, Japan

Yoshihiro Kuroyama

This inventor holds 22 USPTO granted patents, primarily in Ink Jet Recording Technology. Top assignees: Nippon Paper Industries Co., Ltd., Canon Kabushiki Kaisha, Sanyo-Kokusaku Pulp Co., Ltd.. Active years: 1994-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshihiro Kuroyama. Retrieved from https://idiyas.com/inventor/yoshihiro-kuroyama

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 = 3.7

ph-index = 6

Forward Citations = 133(Granted Patents)


Location History:

  • Shinjuku, JP (1994)
  • Shinjuku-ku, JP (1999)
  • Tokyo-To, JP (2001)
  • Tokyo, JP (1995 - 2002)

Company Filing History:


Years Active: 1994-2002

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Areas of Expertise:
Ink Jet Recording Paper
Production Method
Cast-Coated Paper
Recording Medium
Pressure-Sensitive Adhesive Sheet
Both-Sided Recording Paper
Ink Fusion Transfer
Thermal Printer
Manufacturing Process
Recording Method
Transfer Paper
Permanent Paper
22 patents (USPTO):Explore Patents

Title: The Innovative Mind of Yoshihiro Kuroyama

Introduction: Yoshihiro Kuroyama, an accomplished inventor based in Tokyo, Japan, has made significant contributions to the field of materials science through his 22 patents. His work, primarily focused on the development of advanced ink jet recording materials, showcases his keen understanding of chemical properties and innovative techniques.

Latest Patents: Kuroyama's latest inventions include a groundbreaking ink jet recording paper. This innovative product is designed to exhibit excellent ink absorbency and color-developing properties while featuring a dull-tone glossiness. The patent details a unique construction comprising an ink-receiving layer and at least two colloidal silica layers that are applied successively onto a support. Remarkably, the colloidal silica layer in contact with the ink-receiving layer contains no binder and maintains a coverage of about 1 to 3 g/m², while the second layer ranges from about 1 to 6 g/m². This innovative approach fundamentally enhances the performance and quality of ink jet printing.

Career Highlights: Throughout his career, Kuroyama has held pivotal roles at notable companies, including Nippon Paper Industries Co., Ltd. His extensive experience in the industry has enabled him to push the boundaries of what is possible in ink technology, leading to multiple patents that underline his expertise and vision.

Collaborations: Kuroyama has worked closely with distinguished colleagues such as Teruhisa Shimada and Takashi Ueno. Their collaborative efforts have not only enriched his work but have also contributed to the advancements in the technological aspects of printing materials that meet modern demands.

Conclusion: Yoshihiro Kuroyama stands out as a remarkable inventor whose contributions have significantly impacted the field of ink jet technology. His continued passion for innovation and excellence in his work not only serves to enhance product quality but also inspires future developments in materials science. The 22 patents he holds reflect a career dedicated to creating solutions that meet the evolving needs of the printing industry.

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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