Gunma, Japan

Motomitsu Hagiwara

This inventor holds 6 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignees: Taiyo Yuden Co., Ltd., Max Co., Ltd.. Active years: 1999-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Motomitsu Hagiwara. Retrieved from https://idiyas.com/inventor/motomitsu-hagiwara

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 = 33.3

 

Average Co-Inventor Count = 4.8

ph-index = 2

Forward Citations = 40(Granted Patents)


Location History:

  • Tokyo, JP (1999)
  • Gunma, JP (2010 - 2011)
  • Takasaki, JP (2011 - 2013)

Company Filing History:


Years Active: 1999-2013

Loading Chart...
Loading Chart...
6 patents (USPTO):Explore Patents

Title: The Innovations of Motomitsu Hagiwara

Introduction

Motomitsu Hagiwara is a notable inventor based in Gunma, Japan. He has made significant contributions to the field of optical information recording, holding a total of 6 patents. His work has advanced the technology behind optical disks, enhancing their functionality and durability.

Latest Patents

Hagiwara's latest patents include an innovative optical information recording medium and a manufacturing method for it. This multilayer type optical information recording medium features a protective layer composed of an inorganic material that is resistant to peeling. The design includes an interlayer made up of multiple films, ensuring that the materials used in the first and second films differ from each other. This unique configuration enhances the peeling resistance of the first film against the protective layer. Another significant patent involves an optical information recording medium that consists of a light-transmitting substrate, a recording layer, and a reflecting layer. This design also incorporates an ink receiving layer on the label surface side, optimizing the medium's usability.

Career Highlights

Throughout his career, Hagiwara has worked with prominent companies such as Taiyo Yuden Co., Ltd. and Max Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in optical technology.

Collaborations

Hagiwara has collaborated with notable colleagues, including Takeshi Otsu and Akimasa Miyata. Their combined expertise has fostered a creative environment that has led to significant advancements in their field.

Conclusion

Motomitsu Hagiwara's contributions to optical information recording technology are noteworthy. His innovative patents and collaborations have played a crucial role in advancing this field. His work continues to influence the development of optical media, showcasing the importance of innovation in technology.

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]
Loading…