Hisao Sasai

Osaka, Japan

Hisao Sasai

This inventor holds 645 USPTO granted patents and 67 published patent applications, plus 68 CIPO patents and 108 EPO patents, primarily in Image Coding Techniques (CPC class H04N19-176). Top assignees: Sun Patent Trust, Panasonic Intellectual Property Corporation of America, Panasonic Corporation. Active years: 2009-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisao Sasai. Retrieved from https://idiyas.com/inventor/hisao-sasai

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

USPTO Granted Patents = 645 

% Patents Active = 98.6

 

 

Average Co-Inventor Count = 5.4

ph-index = 21

Forward Citations = 1,784(Granted Patents)

Forward Citations (Not Self Cited) = 621(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Suita, JP (2009)
  • Sherman Oaks, CA (US) (2011)
  • Osaka, JP (2009 - 2024)
  • Kanagawa, JP (2024)

Company Filing History:


Years Active: 2009-2026

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Areas of Expertise:
Image Coding
Video Encoding
Motion Vector Calculation
Decoding Methods
Picture Coding
Candidate Motion Vectors
Image Decoding Apparatus
Video Decoding
Moving Picture Coding
Arithmetic Coding
Encoding Apparatus
Tile Boundaries
645 patents (USPTO):Explore Patents

Title: Hisao Sasai: Pioneering Innovator in Image Coding and Decoding

Introduction:

In the vast realm of innovations and patents, few individuals stand out like Hisao Sasai. Hailing from Osaka, Japan, Sasai has made a significant impact in the field of image coding and decoding. With a remarkable portfolio of patents and an illustrious career, Sasai's contributions have transformed the way we encode and decode visual information.

Latest Patents:

Hisao Sasai's latest patents revolve around image coding and decoding methods, aiming to enhance the efficiency and accuracy of image processing. Among his recent inventions are image decoding methods, image coding methods, image decoding apparatus, image coding apparatus, and image coding and decoding apparatus. These inventions include advanced techniques such as determining the context for image processing under specific conditions, hierarchical depth utilization, and shared contextual selection.

Career Highlights:

Throughout his career, Sasai has demonstrated his expertise in image coding and decoding through his extensive patent portfolio, which currently includes an impressive 541 patents. His commitment to innovation and his deep understanding of the field have enabled him to develop groundbreaking solutions.

Sasai has also held influential positions at renowned technology organizations. Notably, he has contributed to the Sun Patent Trust, a company fostering patent collaboration and development. Additionally, he has worked with Panasonic Intellectual Property Corporation of America, playing a vital role in their patent strategies and technological advancements.

Collaborations:

In the pursuit of innovation, collaboration plays a crucial role. Hisao Sasai has had the privilege of collaborating with talented individuals in his field, including Youji Shibahara and Takahiro Nishi. Together, they have shared their expertise and worked towards improving image coding and decoding techniques. Through their collective efforts, significant advancements have been made in this domain.

Conclusion:

Hisao Sasai's contributions to the world of innovations and patents, particularly in the field of image coding and decoding, are undeniably remarkable. His extensive portfolio of 541 patents showcases his expertise and commitment to driving progress in the industry. Sasai's collaborations with esteemed companies and fellow inventors further underline his dedication to pushing the boundaries of image processing technology. As we look to the future, we can expect Sasai's innovations to continue shaping the image coding and decoding landscape, further enhancing our visual experiences.

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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