Tokyo, Japan

Yoshikazu Takashima

This inventor holds 84 USPTO granted patents, plus 1 CIPO patent and 6 EPO patents, primarily in Image Processing Technology (CPC class G06T2207-10024). Top assignees: Sony Corporation, Sony Pictures Entertainment, Inc., Hitachi-Kokusai Electric Inc.. Active years: 2004-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshikazu Takashima. Retrieved from https://idiyas.com/inventor/yoshikazu-takashima

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


% Patents Active = 34.5


 

Average Co-Inventor Count = 1.8

ph-index = 8

Forward Citations = 333(Granted Patents)

Forward Citations (Not Self Cited) = 314(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Toyama, JP (2005 - 2010)
  • Oyabe, JP (2012)
  • Tolyo, JP (2014)
  • Tokyo, JP (2004 - 2015)
  • Los Angeles, CA (US) (2013 - 2023)

Company Filing History:


Years Active: 2004-2023

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Areas of Expertise:
Image Segmentation
Color Reproduction
Machine Learning
Content Management
Information Processing
Data Processing
Multimedia
Upscaling
Optical Flow
3D Authoring
Stereoscopic Overlay
Semiconductor Manufacturing
84 patents (USPTO):Explore Patents

Title: Innovations of Yoshikazu Takashima in Machine Learning and Image Processing

Introduction

Yoshikazu Takashima, a prolific inventor based in Tokyo, Japan, has made significant contributions to the fields of machine learning and image processing. With an impressive portfolio of 84 patents, Takashima's innovative solutions aim to enhance image segmentation and color reproduction, revolutionizing the way images are processed and interpreted in various applications.

Latest Patents

Two of Takashima's latest patents showcase his expertise in improving image processing techniques. The first patent, titled "Machine learning based image segmentation training with contour accuracy evaluation," focuses on enhancing the accuracy of predicted segmentation masks. This method involves extracting a ground-truth RGB image buffer and a binary contour image buffer, generating predicted segmentation masks, and computing a total loss to generate improved binary contours, ultimately increasing the accuracy of the predicted segmentation masks.

The second patent, "Enhanced color reproduction for upscaling," addresses the color reproduction of images during the upscaling process. This method includes converting RGB-formatted data into luminance and color channel formatted data, computing losses between predicted and formatted data, and outputting a weighted average to enhance color reproduction. These advancements position Takashima at the forefront of innovation in image technology.

Career Highlights

Throughout his career, Takashima has held pivotal roles in renowned companies, including Sony Corporation and Sony Pictures Entertainment, Inc. His work at these organizations provided him with a platform to develop and patent technologies that have significantly impacted the industry. Takashima’s contributions have not only advanced the technological landscape but also set new standards for image processing and quality.

Collaborations

Takashima has collaborated with notable coworkers, including Kenjiro Ueda and Katsumi Muramatsu. These partnerships have fostered a creative environment that promotes the sharing of ideas and innovations, resulting in groundbreaking technologies that transform the way images are analyzed and reproduced.

Conclusion

Yoshikazu Takashima's relentless pursuit of innovation and excellence in the fields of machine learning and image processing is exemplified through his extensive patent portfolio. His advancements in image segmentation and color reproduction not only enhance the quality of visual data but also pave the way for future technological breakthroughs. As the industry continues to evolve, Takashima’s contributions remain vital to pushing the boundaries of what is possible in image 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]
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