Yaizu, Japan

Nobuhiro Watanabe

This inventor holds 5 USPTO granted patents. Top assignees: Sapporo Breweries Limited, Daicel Chemical Industries, Ltd., Etsuo Ito. Active years: 1988-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuhiro Watanabe. Retrieved from https://idiyas.com/inventor/nobuhiro-watanabe-yvqfxh9s

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 5.6

ph-index = 3

Forward Citations = 15(Granted Patents)


Location History:

  • Kishi, JP (1988)
  • Yaizu, JP (1988 - 1996)

Company Filing History:


Years Active: 1988-1996

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5 patents (USPTO):Explore Patents

Title: Nobuhiro Watanabe: Innovator in Polysaccharide Research

Introduction

Nobuhiro Watanabe is a notable inventor based in Yaizu, Japan. He has made significant contributions to the field of polysaccharide research, particularly in developing substances with antitumor activity. With a total of 5 patents to his name, Watanabe's work has implications for both medical and industrial applications.

Latest Patents

Watanabe's latest patents include a "Process for producing polysaccharide RON substance with a synthetase." This innovative process involves fermenting sucrose with a synthetase isolated from Leuconostoc strains. The preferred strains include Leuconostoc mesenteroides FERM BP-2242, 2711, 2712, 2713, 2714, and 2670. The resulting polysaccharide RON substance exhibits antitumor activity against the syngenic tumor Meth A, a transplantable tumor in mice. Another significant patent is the "Method for producing biologically active polysaccharide RON substance." This method utilizes a microorganism from the genus Leuconostoc, which is known for its ability to produce the RON substance with excellent biological activities, including antitumor effects.

Career Highlights

Throughout his career, Watanabe has worked with prominent companies such as Sapporo Breweries Limited and Daicel Chemical Industries, Ltd. His experience in these organizations has contributed to his expertise in polysaccharide research and development.

Collaborations

Watanabe has collaborated with notable coworkers, including Suguru Takeo and Hisao Kado. These partnerships have likely enhanced his research and innovation efforts in the field.

Conclusion

Nobuhiro Watanabe's contributions to polysaccharide research and his innovative patents highlight his role as a significant inventor in this field. His work continues to influence advancements in medical and industrial applications.

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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