Ibaraki, Japan

Daichi Sakai

This inventor holds 6 USPTO granted patents and 11 published patent applications. Top assignee: Hitachi Chemical Company, Ltd.. Active years: 2014-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Daichi Sakai. Retrieved from https://idiyas.com/inventor/daichi-sakai

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 = 16.7

Average Co-Inventor Count = 4.0

ph-index = 3

Forward Citations = 17(Granted Patents)


Location History:

  • Ibaraki, JP (2014 - 2016)
  • Tsukuba, JP (2016)
  • Tokyo, JP (2019)

Company Filing History:


Years Active: 2014-2019

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6 patents (USPTO):Explore Patents

Title: Daichi Sakai: Innovator in Optical Technology

Introduction

Daichi Sakai is a prominent inventor based in Ibaraki, Japan. He has made significant contributions to the field of optical technology, holding a total of six patents. His work focuses on enhancing optical devices, particularly in improving color mixing properties and homogeneity.

Latest Patents

One of Sakai's latest patents is an optical integrator and video projection device. The purpose of this invention is to provide a small optical integrator that enhances color mixing and homogeneity. The optical integrator features a light entrance surface, an exit surface, and side surfaces that connect them. It is filled with a light guide material containing scattering particles that differ in refractive index from the light guide material. This design allows light entering through the entrance surface to propagate towards the exit surface while being scattered by the particles, ultimately guiding part of the scattered light to the exit surface through internal reflection.

Another notable patent is a substrate with a lens and its production method. This invention includes a substrate with a columnar member on one surface and a lens member on the columnar member. By selecting the height of the lens, it can be formed in a uniform and desired shape, reducing the distance between the lens and other optical members.

Career Highlights

Daichi Sakai is currently employed at Hitachi Chemical Company, Ltd., where he continues to innovate in optical technologies. His work has significantly impacted the development of advanced optical devices.

Collaborations

Sakai has collaborated with notable coworkers, including Toshihiro Kuroda and Masao Uchigasaki. Their combined expertise has contributed to the success of various projects and patents.

Conclusion

Daichi Sakai is a distinguished inventor whose work in optical technology has led to several innovative patents. His contributions continue to shape the future of optical devices, demonstrating the importance of innovation in 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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