Yokkaichi, Japan

Norihiko Sanefuji

This inventor holds 6 USPTO granted patents and 2 published patent applications, plus 1 CIPO patent and 1 EPO patent. Top assignee: Ishihara Sangyo Kaisha, Ltd.. Active years: 1996-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Norihiko Sanefuji. Retrieved from https://idiyas.com/inventor/norihiko-sanefuji

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 = 66.7

 

 

Average Co-Inventor Count = 3.4

ph-index = 2

Forward Citations = 13(Granted Patents)


Location History:

  • Yokkaichi, JP (1996 - 2018)
  • Osaka, JP (2022)

Company Filing History:


Years Active: 1996-2022

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6 patents (USPTO):Explore Patents

Title: Norihiko Sanefuji: Innovator in Near Infrared-Reflective Materials

Introduction

Norihiko Sanefuji is a prominent inventor based in Yokkaichi, Japan. He has made significant contributions to the field of materials science, particularly in the development of near infrared-reflective pigments. With a total of 6 patents to his name, Sanefuji's work has garnered attention for its innovative approaches and practical applications.

Latest Patents

Sanefuji's latest patents include a method for producing a near infrared-reflective black pigment. This method involves the use of calcium, titanium, and manganese, resulting in a pigment that minimizes the elution of these elements when in contact with acid. The process includes mixing these compounds through a wet grinding method and calcining them to achieve a specific surface area of at least 1.0 m/g and less than 3.0 m/g. Another notable patent describes a black fine particulate near-infrared reflective material, which is a perovskite-type complex oxide. This material contains alkaline earth metals, titanium, and manganese, with a specific surface area ranging from 3.0 to 150 m/g. The Hunter L value, indicating blackness, is 30 or less, and the reflectivity at a wavelength of 1200 nm is 40% or above.

Career Highlights

Throughout his career, Sanefuji has worked with notable companies such as Ishihara Sangyo Kaisha, Ltd. and Ishihara Sanayo Kaisha, Ltd. His experience in these organizations has allowed him to refine his expertise in materials development and innovation.

Collaborations

Sanefuji has collaborated with esteemed colleagues, including Haruo Okuda and Hideo Futamata. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.

Conclusion

Norihiko Sanefuji's contributions to the field of near infrared-reflective materials highlight his innovative spirit and dedication to advancing materials science. His patents reflect a commitment to creating practical solutions that address industry needs.

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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