Yamaguchi, Japan

Shigeaki Irino

This inventor holds 9 USPTO granted patents. Top assignees: Toyo Soda Manufacturing Co., Ltd., Holland Sweetener Company, V.o.f., Sagami Chemical Research Center. Active years: 1984-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeaki Irino. Retrieved from https://idiyas.com/inventor/shigeaki-irino

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 = 4.2

ph-index = 3

Forward Citations = 27(Granted Patents)


Location History:

  • Tokuyama, JP (1984 - 1985)
  • Yamaguchi-ken, JP (1997)
  • Yamaguchi, JP (1989 - 1999)

Company Filing History:


Years Active: 1984-1999

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9 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Shigeaki Irino

Introduction: Shigeaki Irino, renowned for his inventive prowess, hails from Yamaguchi, Japan. With a remarkable portfolio of nine patents, he has made significant strides in the field of biochemistry, particularly concerning amino acids and their derivatives.

Latest Patents: Among his notable inventions, the latest patents include a method for producing optically active amino acids and derivatives with high optical purity. This innovative method outlines processes (A), (B), and (C). Process (A) involves preparing an optically active amino acid with a higher optical purity than the convergent value of mutual solubility of isomers, followed by the crystallization of the excess isomer. The other processes are detailed within the patent specification, showcasing his comprehensive approach to solving complex biochemical challenges. Additionally, he developed a process for the enzymatic coupling reaction of N-protected-L-aspartic acid with L-phenylalanine methyl ester. This process employs a thermolysin-like protease enzyme to enhance the efficiency of the reaction, ultimately resulting in larger and thicker precipitated crystals, which reflects his commitment to innovation in continuous processes.

Career Highlights: Shigeaki Irino’s career has included pivotal roles at esteemed organizations such as Toyo Soda Manufacturing Co., Ltd. and Sagami Chemical Research Center. His work in these companies has significantly impacted the field, allowing him to apply his innovative ideas in practical settings.

Collaborations: Throughout his career, Irino has collaborated with notable colleagues, including Kiyotaka Oyama and Tsuneo Harada. These collaborations have fostered an environment of creativity and innovation, enabling breakthroughs in the field of amino acid research.

Conclusion: In summary, Shigeaki Irino stands out as a prolific inventor, contributing significantly to the advancement of biochemistry through his patented methods and innovative ideas. His work continues to influence the industry, showcasing the importance of creativity and collaboration in scientific research.

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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