Hino, Japan

Hiroyuki Kawashima

This inventor holds 3 USPTO granted patents. Top assignee: Teijin Limited. Active years: 1977-1981.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Kawashima. Retrieved from https://idiyas.com/inventor/hiroyuki-kawashima-wfw7ftsn

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 = 4.9

ph-index = 2

Forward Citations = 24(Granted Patents)


Location History:

  • Hino, JA (1977)
  • Hino, JP (1980)
  • Van Nuys, CA (US) (1981)

Company Filing History:


Years Active: 1977-1981

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3 patents (USPTO):Explore Patents

Title: Hiroyuki Kawashima: Innovator in Bone Health

Introduction

Hiroyuki Kawashima is a notable inventor based in Hino, Japan. He has made significant contributions to the field of bone health through his innovative patents. With a total of 3 patents, Kawashima's work focuses on developing effective treatments for diseases related to vitamin D deficiency.

Latest Patents

Kawashima's latest patents include a bone formation stimulant that contains vitamin D.sub.3 or its derivative along with acetylsalicylic acid or its pharmaceutically permissible salt. This stimulant is designed to cure or prevent diseases caused by vitamin D deficiency in both humans and animals. Another significant patent is for a novel 1.alpha.-hydroxy-24-oxovitamin D.sub.3, which includes its preparation process. This compound, along with its intermediates, is useful in the synthesis of 1.alpha.,24-dihydroxyvitamin D.sub.3. Additionally, he has developed a method for preparing 1.alpha.,3.beta.-dihydroxy-24-oxocholesta-5,7-diene and its hydroxyl group-protected derivatives from fucosterol.

Career Highlights

Kawashima is currently associated with Teijin Limited, where he continues to advance his research and development efforts. His work has been instrumental in creating innovative solutions for bone health, showcasing his dedication to improving medical treatments.

Collaborations

Kawashima has collaborated with notable colleagues such as Yoshinobu Hashimoto and Toru Takeshita. These partnerships have contributed to the success of his research and the development of his patents.

Conclusion

Hiroyuki Kawashima is a prominent inventor whose work in bone health has led to significant advancements in the treatment of vitamin D deficiency. His innovative patents reflect his commitment to improving health outcomes through scientific research and collaboration.

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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