Yokosuka, Japan

Hiroya Nakamura

USPTO Granted Patents = 159 

 

Average Co-Inventor Count = 3.4

ph-index = 9

Forward Citations = 401(Granted Patents)

Forward Citations (Not Self Cited) = 333(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kanagawa-ken, JP (2012 - 2013)
  • Yokohoma, JP (2017)
  • Yokosuka-shi, JP (2019)
  • Yokosuka, JP (1995 - 2023)
  • Yokohama, JP (1995 - 2024)
  • Kanagawa, JP (2022 - 2024)

Company Filing History:


Years Active: 1995-2025

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Areas of Expertise:
Picture Decoding
Picture Coding
Video Encoding
Dynamic Image Decoding
Moving Picture Coding
Affine Merge Candidate
Image Conversion
History-Based Candidate Selection
159 patents (USPTO):Explore Patents

Title: Hiroya Nakamura: Innovator and Prolific Inventor in Picture Decoding Technology

Introduction:

Hiroya Nakamura, a talented inventor hailing from Yokosuka, Japan, has made significant contributions in the field of picture decoding technology. With an impressive portfolio of 126 patents, Nakamura's expertise lies in developing innovative techniques to enhance coding efficiency in picture decoding devices. Notably, his recent patents focus on history-based candidate selection and the improvement of moving image encoding and decoding processes.

Latest Patents:

Nakamura's latest patents revolve around picture decoding devices and methods that aim to improve coding efficiency through innovative block split techniques. One standout invention is the "Picture Decoding Device, Picture Decoding Method, and Picture Decoding Program with History-Based Candidate Selection." This technology introduces a spatial candidate derivation unit that generates spatial candidates from inter prediction information of blocks neighboring the decoding target block. These candidates are then combined with history-based candidates, ultimately improving the selection process for inter prediction units.

Additionally, Nakamura's advancements extend to the realm of moving image encoding and decoding. His patents for the "Moving Image Encoding Device, Moving Image Encoding Method, Moving Image Encoding Program, Moving Image Decoding Device, Moving Image Decoding Method, and Moving Image Decoding Program" tackle the challenge of low-load, efficient coding. These inventions incorporate spatial motion information candidates derived from neighboring blocks, along with history-based motion information candidates obtained from memory records. The blending of these two candidate sources allows for optimized and streamlined motion information processing.

Career Highlights:

Nakamura's career has been marked by his association with renowned companies in the technology landscape. He has contributed extensively to the research and development efforts of JVC Kenwood Corporation and Victor Company of Japan, Limited (better known as JVC). Working with these industry giants, Nakamura had the opportunity to apply his expertise to real-world products and solutions, solidifying his position as a leading innovator in picture decoding technology.

Collaborations:

Throughout his career, Hiroya Nakamura has collaborated closely with esteemed colleagues in the field. Notably, his partnerships with Shigeru Fukushima and Hideki Takehara have yielded noteworthy inventions. These collaborations have harnessed the collective expertise of these inventors, fostering an environment conducive to groundbreaking research and development endeavors.

Conclusion:

Hiroya Nakamura's prowess in picture decoding technology is evident through his remarkable patent portfolio and contributions to renowned companies such as JVC Kenwood Corporation and JVC. His latest patents, focusing on block split techniques, spatial and history-based candidates, and efficient coding, demonstrate his commitment to enhancing the efficiency and quality of picture decoding devices and processes. With a passion for innovation and a keen eye for optimizing coding efficiency, Nakamura continues to leave a lasting impact on the field of picture decoding technology.

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