Osaka, Japan

Toshikazu Hirayama

This inventor holds 7 USPTO granted patents and 1 EPO patent. Top assignees: Nipro Corporation, Astra Zeneca U.k. Limited, Nissho Corporation. Active years: 1998-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshikazu Hirayama. Retrieved from https://idiyas.com/inventor/toshikazu-hirayama

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


% Patents Active = 71.4


Average Co-Inventor Count = 3.7

ph-index = 5

Forward Citations = 220(Granted Patents)


Location History:

  • Ohtsu, JP (1998 - 1999)
  • Osaka, JP (2003 - 2010)

Company Filing History:


Years Active: 1998-2010

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7 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Toshikazu Hirayama

Introduction

Toshikazu Hirayama is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of medical devices, particularly in the area of drug delivery systems. With a total of 7 patents to his name, Hirayama's work has had a meaningful impact on healthcare technology.

Latest Patents

One of Hirayama's latest inventions is an automatic dental drug solution injection device. This innovative device features a pre-filled syringe that includes a glass barrel, a sealing member fitted in a medical liquid discharge port, and a tip member mounted around the sealing member. The design incorporates a closing member and a cap member, along with a holding member. The sealing member has a through-hole formed in the axial direction, while the tip member includes a skirt with an engagement pawl, a top wall, a needle mounting portion, and a medical liquid deriving portion. This invention aims to prevent oxygen contamination and deterioration of the medical liquid, ensuring safer and more effective drug delivery.

Career Highlights

Throughout his career, Hirayama has worked with prominent companies such as Nipro Corporation and Nissho Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in medical technology.

Collaborations

Hirayama has collaborated with talented individuals in his field, including Masafumi Aramata and Hitoshi Futagawa. These partnerships have fostered a creative environment that has led to the development of groundbreaking inventions.

Conclusion

Toshikazu Hirayama's contributions to medical device innovation are noteworthy. His inventions, particularly in drug delivery systems, demonstrate his commitment to improving healthcare technology. With a solid foundation of patents and collaborations, Hirayama continues to be a significant figure in the field of medical innovation.

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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