Nishinomiya, Japan

Ryoichi Otsuka

This inventor holds 2 USPTO granted patents. Top assignee: Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo. Active years: 2002-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ryoichi Otsuka. Retrieved from https://idiyas.com/inventor/ryoichi-otsuka

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

Calculating rank

% Patents Active = 50.0

Average Co-Inventor Count = 1.6

ph-index = 1

Forward Citations = 1(Granted Patents)


Location History:

  • Kobe, JP (2002)
  • Nishinomiya, JP (2006)

Company Filing History:


Years Active: 2002-2006

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2 patents (USPTO):Explore Patents

Title: Ryoichi Otsuka: Innovator in Chemical Production

Introduction

Ryoichi Otsuka is a notable inventor based in Nishinomiya, Japan. He has made significant contributions to the field of chemical production, holding two patents that showcase his innovative approach to manufacturing.

Latest Patents

Otsuka's latest patents include a method for producing 3,5-di-tert-butyl-4-hydroxybenzoic acid. This invention provides a streamlined process for synthesizing this important chemical compound. Additionally, he has developed a process for manufacturing columnar crystals of 6-hydroxy-2-naphthoic acid. This process involves dissolving crude 6-hydroxy-2-naphthoic acid in an aqueous solvent, adding crystalline 3-hydroxy-2,7-naphthoic acid or columnar crystals as seed crystals, and cooling the mixture to precipitate the desired crystals. His invention also includes columnar crystals of 6-hydroxy-2-naphthoic acid that exhibit specific X-ray diffraction peaks.

Career Highlights

Ryoichi Otsuka is associated with Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo, where he applies his expertise in chemical research and development. His work has contributed to advancements in the production of various chemical compounds.

Collaborations

Otsuka has collaborated with notable colleagues such as Ryuzo Ueno and Masaya Kitayama. Their combined efforts have furthered research and innovation in their field.

Conclusion

Ryoichi Otsuka's contributions to chemical production through his patents highlight his role as an influential inventor. His innovative methods and collaborative spirit continue to impact the industry positively.

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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