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For the Inventor, By the Inventor

Yokohama, Japan

Hiroyasu Ohtsubo

This inventor holds 24 USPTO granted patents, primarily in Image Processing Systems. Top assignees: Hitachi, Ltd., Hitachi Video Engineering, Incorporated, Matsushita Electric Industrial Co., Ltd.. Active years: 1988-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyasu Ohtsubo. Retrieved from https://idiyas.com/inventor/hiroyasu-ohtsubo

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

USPTO Granted Patents = 24

% Patents Active = 87.5

Average Co-Inventor Count = 4.1

ph-index = 10

Forward Citations = 286(Granted Patents)


Location History:

  • Katsuta, JP (1988 - 1991)
  • Chigasaki, JP (1996)
  • Yokohama, JP (1990 - 2009)

Company Filing History:

goldMedal23 out of 42,726 
 
Hitachi, Ltd.
 patents
silverMedal1 out of 67 
 
Hitachi Video Engineering, Incorporated
 patents
bronzeMedal1 out of 27,375 
 
Matsushita Electric Industrial Co., Ltd.
 patents
4. 1 out of 16,454 
 
Panasonic Corporation
 patents
5. 1 out of 834,453 
Other
 patents
where one patent can have more than one assignee

Years Active: 1988-2009

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Areas of Expertise:
Surveillance Systems
Digital Cameras
Video Signal Processing
Image Sensors
Color Video Signals
Signal Processing
Noise Reduction
Pixel Correction
Dynamic Picture Output
Gain Control
White Balance Adjustment
Resolution Conversion
24 patents (USPTO):Explore Patents
1. 7535348 - Surveillance system with surveillance terminals and surveillance center (2009-05-19),
2. 7289563 - Security camera system (2007-10-30),
3. 7110451 - Bitstream transcoder (2006-09-19),
4. 7088240 - Surveillance system with surveillance terminals and surveillance center (2006-08-08),
5. 6509931 - Resolution conversion unit and apparatus having resolution conversion unit (2003-01-21),
6. 6128036 - Still picture recording digital camera with output unit having delay (2000-10-03),
7. 5990946 - Signal reading and processing arrangement of still picture recording (1999-11-23),
8. 5796430 - Video camera with a function to correct defective pixels of solid state (1998-08-18),
9. 5726707 - Signal reading and processing arrangement of still picture recording (1998-03-10),
10. 5625413 - Video camera with a function to correct defective pixels of solid state (1997-04-29),
11. 5512945 - Still picture recording digital camera which outputs a dynamic picture (1996-04-30),
12. 5510835 - Video camera having a solid-type image sensor (1996-04-23),
13. 5483290 - Video camera apparatus including programmable timing generation circuit (1996-01-09),
14. 5430499 - Apparatus for correcting vertical aperture of an image (1995-07-04),
15. 5404165 - Apparatus and method for processing signals of an imaging device (1995-04-04),

Title: The Innovative Journey of Hiroyasu Ohtsubo

Introduction: Hiroyasu Ohtsubo is a renowned inventor hailing from Yokohama, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Ohtsubo's latest patents focus on advancements in artificial intelligence and robotics, showcasing his commitment to pushing the boundaries of technological possibilities.

Career Highlights: With a career spanning over two decades, Ohtsubo has worked with leading tech companies in Japan, spearheading projects that have revolutionized industries such as automation, healthcare, and transportation.

Collaborations: Throughout his career, Ohtsubo has collaborated with top research institutions and universities worldwide, fostering a culture of innovation and knowledge-sharing in the tech community.

Conclusion: Hiroyasu Ohtsubo's dedication to innovation and his relentless pursuit of technological excellence continue to inspire the next generation of inventors and engineers globally.

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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