logo

For the Inventor, By the Inventor

Yokosuka, Japan

Kunikazu Ohnishi

This inventor holds 38 USPTO granted patents and 8 published patent applications, primarily in Optical Information Technology. Top assignees: Hitachi, Ltd., Hitachi Media Electronics Co., Ltd., Hitachi Consumer Electronics Co., Ltd.. Active years: 1988-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kunikazu Ohnishi. Retrieved from https://idiyas.com/inventor/kunikazu-ohnishi

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

USPTO Granted Patents = 38 

% Patents Active = 52.6

Average Co-Inventor Count = 3.2

ph-index = 9

Forward Citations = 227(Granted Patents)


Location History:

  • Yokohama, JP (1988 - 1995)
  • Chigasaki, JP (1994 - 1995)
  • Yokosuka, JP (1996 - 2014)
  • Tokyo, JP (2017)

Company Filing History:

goldMedal20 out of 42,731 
 
Hitachi, Ltd.
 patents
silverMedal18 out of 203 
 
Hitachi Media Electronics Co., Ltd.
 patents
bronzeMedal1 out of 365 
 
Hitachi Consumer Electronics Co., Ltd.
 patents
4. 1 out of 389 
 
Hitachi-Lg Data Storage, Inc.
 patents
5. 4 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1988-2017

Loading Chart...
Areas of Expertise:
Optical Pickup
Image Display
Optical Disc
Optical Information
Diffraction Grating
Photodetector
Optical Head
Tracking Method
Signal Processing
Optical Communication
Recording Apparatus
Light Source
38 patents (USPTO):Explore Patents
1. 9551917 - Light source unit and projection display system using same (2017-01-24),
2. 8891147 - Optical beam scanning device and image display device using the same (2014-11-18),
3. 8693075 - Scan type image display device (2014-04-08),
4. 8644120 - Optical information processing device and tracking control method thereof for use with grooveless multilayer optical disc (2014-02-04),
5. 8331207 - Optical pickup and optical disc unit (2012-12-11),
6. 8149678 - Diffraction grating, optical pickup and optical disc device (2012-04-03),
7. 8081550 - Optical pickup device (2011-12-20),
8. 8072850 - Optical information recording apparatus (2011-12-06),
9. 7965594 - Optical pickup and optical disc apparatus (2011-06-21),
10. 7936658 - Photodetector, diffraction grating, optical pickup and optical disc apparatus (2011-05-03),
11. 7911915 - Optical pickup and optical information recording apparatus using the same (2011-03-22),
12. 7724626 - Optical pickup and optical information recording apparatus using the same (2010-05-25),
13. 7715298 - Optical pickup and optical information reproducing apparatus using same (2010-05-11),
14. 7706220 - Photodetector, diffraction grating, optical pickup and optical disc apparatus (2010-04-27),
15. 7697394 - Optical pickup and optical information recording apparatus using the same (2010-04-13),

Sure, I can help you with that. Here is the article about inventor Kunikazu Ohnishi:

Title: Innovator Spotlight: Kunikazu Ohnishi

Introduction:

Kunikazu Ohnishi, a prolific inventor based in Yokosuka, Japan, has made significant contributions to the field of optical technology. With a total of 38 patents to his name, Ohnishi's innovative work has advanced the development of projection display systems and optical beam scanning devices.

Latest Patents:

One of Ohnishi's latest patents is for a "Light source unit and projection display system using the same." This projection display system combines multiple light sources emitting different wavelengths to enhance image quality and versatility. Another patent is for an "Optical beam scanning device and image display device using the same," which effectively corrects image distortion in scanning image display devices.

Career Highlights:

Ohnishi has a rich history of employment with prestigious companies in the technology sector. He has worked at Hitachi, Ltd. and Hitachi Media Electronics Co., Ltd., where he has applied his expertise in optical technology to drive innovation in display systems.

Collaborations:

Throughout his career, Ohnishi has collaborated with esteemed colleagues such as Masayuki Inoue and Yukio Fukui. Together, they have worked on groundbreaking projects that have pushed the boundaries of optical technology and improved the performance of display devices.

Conclusion:

In conclusion, Kunikazu Ohnishi's dedication to innovation and his expertise in optical technology have cemented his legacy as a pioneering inventor in the field. His patents and contributions to projection display systems and optical beam scanning devices have greatly influenced the technological landscape, marking him as a visionary in the industry.

If you have any more requests or need further information, feel free to ask!

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]
Loading…