Tokyo, Japan

Tsutomu Shiratori

This inventor holds 32 USPTO granted patents and 5 published patent applications, plus 1 CIPO patent, primarily in Magneto-Optical Recording. Top assignees: Canon Kabushiki Kaisha, Matsushita Electric Industrial Co., Ltd., Other. Active years: 1995-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tsutomu Shiratori. Retrieved from https://idiyas.com/inventor/tsutomu-shiratori

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

USPTO Granted Patents = 32 

% Patents Active = 84.4


Average Co-Inventor Count = 1.6

ph-index = 9

Forward Citations = 193(Granted Patents)


Location History:

  • Yokohama, JP (1995 - 2002)
  • Tokyo, JP (1995 - 2024)

Company Filing History:


Years Active: 1995-2026

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Areas of Expertise:
Magneto-Optical Medium
Information Recording
Optical Information
Recording Method
Signal Reproducing
High-Density Recording
Magnetic Wall Displacement
Thermal Recording
Manufacturing Process
Recording Apparatus
Buffer Regions
Domain Wall Displacement
32 patents (USPTO):Explore Patents

Title: The Innovative Mind of Tsutomu Shiratori

Introduction

Tsutomu Shiratori, based in Tokyo, Japan, is a prolific inventor known for his significant contributions to the field of liquid ejection technologies and magneto-optic recording mediums. With an impressive portfolio of 31 patents, Shiratori continues to make strides in innovation that enhance the precision and efficiency of various technological applications.

Latest Patents

Among his latest inventions are a liquid ejection apparatus, a liquid ejection method, a dispensing apparatus, and a compound introduction apparatus. These innovations are designed to inhibit contamination of liquids post-ejection. The liquid ejection apparatus features an ejection unit equipped with an ejection part and an ejection energy generation element, which efficiently ejects liquids using the inkjet principle. It includes a storage part designed to safeguard the internal space from external contamination during the ejection process.

Another notable innovation is the DWDD-type magneto-optic recording medium, which boasts a unique stacked structure. This medium is composed of a memory layer, a domain wall displacement layer with domain wall-resistant magnetism, and a switching layer characterized by a lower Curie temperature. The recording surface of this medium is segmented into tracks, with distinct buffer regions designed to facilitate optimal recording at specified temperatures.

Career Highlights

Throughout his career, Tsutomu Shiratori has been associated with renowned companies such as Canon Kabushiki Kaisha, where he honed his skills and advanced his research in innovative technologies. His work has significantly impacted the development of tools and methodologies that push the boundaries of current technological capabilities.

Collaborations

Shiratori has collaborated with esteemed colleagues, including Tomoyuki Hiroki and Eiichi Fujii. These partnerships have fostered a creative environment conducive to groundbreaking inventiveness, allowing for the exchange of ideas and advancements in their respective fields of expertise.

Conclusion

Tsutomu Shiratori exemplifies the spirit of innovation, with his numerous patents that not only showcase his ingenuity but also contribute to the advancement of technology in liquid ejection and magneto-optic recording. As he continues to inspire the next generation of inventors, his legacy remains a testament to the power of creativity and collaboration in the world of inventions.

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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