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For the Inventor, By the Inventor

Akiruno, Japan

Hiroshi Maruyama

This inventor holds 6 USPTO granted patents. Top assignees: Seikagaku Corporation, Seikagaku Kogyo Kabushiki Kaisha. Active years: 1994-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Maruyama. Retrieved from https://idiyas.com/inventor/hiroshi-maruyama-ua67u830

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

USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 4.9

ph-index = 4

Forward Citations = 49(Granted Patents)


Location History:

  • Higashiyamato, JP (1994 - 1995)
  • Akiruno, JP (1998 - 2000)

Company Filing History:

goldMedal4 out of 195 
 
Seikagaku Corporation
 patents
silverMedal2 out of 41 
 
Seikagaku Kogyo Kabushiki Kaisha
 patents

Years Active: 1994-2000

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6 patents (USPTO):Explore Patents
1. 6159954 - Keratan sulfate oligosaccharide fraction and pharmaceutical containing (2000-12-12),
2. 5968806 - Bacillus circulans KsT202 produces keratan sulfate hydrolase (1999-10-19),
3. 5939403 - Keratan sulfate oligosaccharide fraction and pharmaceutical containing (1999-08-17),
4. 5840546 - Keratin sulfate hydrolase obtainable by using Bacillus circulans and (1998-11-24),
5. 5405759 - Heparitinase, process for producing the same and bacteria producing the (1995-04-11),
6. 5290695 - Heparitinase, process for producing the same and bacteria producing the (1994-03-01),

Title: Hiroshi Maruyama: Innovator in Keratan Sulfate Research

Introduction

Hiroshi Maruyama is a prominent inventor based in Akiruno, Japan. He has made significant contributions to the field of biochemistry, particularly in the study of keratan sulfate oligosaccharides. With a total of six patents to his name, Maruyama's work has implications for various medical applications.

Latest Patents

Maruyama's latest patents include a keratan sulfate oligosaccharide fraction and a pharmaceutical containing it. This keratan sulfate oligosaccharide comprises two to five sugar units and features sulfated N-acetylglucosamine at the reducing end. The molecule contains at least two sulfated hydroxyl groups and includes a disaccharide represented by the formula Gal(6S)-GlcNAc(6S). These compounds are utilized as active ingredients in anti-inflammatory agents, antiallergic agents, immunomodulators, cell differentiation inducers, and apoptosis inducers. Another notable patent involves a keratan sulfate hydrolase produced by Bacillus circulans KsT202, which exhibits specific reactivity and stability under defined conditions.

Career Highlights

Throughout his career, Maruyama has worked with notable companies such as Seikagaku Corporation and Seikagaku Kogyo Kabushiki Kaisha. His research has advanced the understanding of keratan sulfate and its applications in pharmaceuticals.

Collaborations

Maruyama has collaborated with esteemed colleagues, including Kiyoshi Morikawa and Keiichi Yoshida, to further his research endeavors.

Conclusion

Hiroshi Maruyama's innovative work in keratan sulfate research has led to significant advancements in the field of biochemistry. His contributions continue to influence the development of therapeutic agents.

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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