Odawara, Japan

Toshiyuki Kitahara

This inventor holds 23 USPTO granted patents and 2 published patent applications, primarily in Optical Storage Technology. Top assignees: Fujifilm Corporation, Fuji Photo Film Company, Limited. Active years: 1993-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiyuki Kitahara. Retrieved from https://idiyas.com/inventor/toshiyuki-kitahara

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

USPTO Granted Patents = 23 

% Patents Active = 73.9

Average Co-Inventor Count = 1.7

ph-index = 6

Forward Citations = 89(Granted Patents)


Location History:

  • Kanagawa, JP (1993 - 2013)
  • Odawara, JP (2009 - 2017)

Company Filing History:


Years Active: 1993-2017

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Areas of Expertise:
Optical Information Recording
Multilayer Structure
Manufacturing Method
Magnetic Tape
Optical Recording Disc
Data Retrieval
Recording Medium
High Density Data
Magnetic Recording Layer
Optical Storage Medium
Data Storage
Recording Apparatus
23 patents (USPTO):Explore Patents

Title: Toshiyuki Kitahara: Innovator in Optical Information Recording

Introduction

Toshiyuki Kitahara, based in Odawara, Japan, is a distinguished inventor with an impressive portfolio of 23 patents. His contributions to the field of optical information recording technology have set new standards and paved the way for advancements in data storage solutions.

Latest Patents

Among his latest innovations, Kitahara has developed a multilayer optical information recording disk and its corresponding manufacturing method. This recording disk features a series of recording layers separated by intermediate layers, with at least one adhesive intermediate layer strategically placed alongside each recording layer. The design utilizes a polymer binder that incorporates a dye, which absorbs recording beams and generates heat to deform the recording layer. This deformation creates a unique interface with a protrusive shape that effectively records information. Additionally, his optical information recording medium comprises a composite of unit structure sheets, each featuring an adhesive layer as an intermediate layer, supporting a highly efficient recording process.

Career Highlights

Kitahara's professional journey includes significant roles at Fujifilm Corporation and Fuji Photo Film Company, Limited. His expertise in optical technologies has earned him recognition as a pioneer in the industry, focusing on enhancing the capabilities of optical recording media.

Collaborations

Throughout his career, Kitahara has collaborated with notable colleagues, including Katsumi Ryoke and Tatsuo Mikami. These partnerships have likely contributed to the innovative spirit found in his groundbreaking patents and reinforced the importance of teamwork in the world of technology.

Conclusion

Toshiyuki Kitahara's work continues to influence the optical recording industry, emphasizing the value of innovation in modern data storage solutions. His string of patents remains a testament to his dedication and ingenuity, inspiring future inventors to explore the possibilities within this field.

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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