Hachioji, Japan

Keiichi Kuba

This inventor holds 15 USPTO granted patents, primarily in Optical Systems. Top assignees: Olympus Optical Company, Ltd., Olympus Corporation, Olympus Imaging Corporation. Active years: 1992-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiichi Kuba. Retrieved from https://idiyas.com/inventor/keiichi-kuba

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

Calculating rank

% Patents Active = 73.3

Average Co-Inventor Count = 1.3

ph-index = 9

Forward Citations = 385(Granted Patents)


Location History:

  • Tokyo, JP (1996)
  • Hachiojo, JP (1997)
  • Hachioji, JP (1992 - 2006)
  • Hachiohji, JP (2006)
  • Koganei, JP (2006 - 2013)

Company Filing History:


Years Active: 1992-2013

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Areas of Expertise:
Optical System
Image Display Apparatus
Projection Lens
Vari-Focal Optical System
Scanning Optical System
Diffractive Optical Element
Path-Bending Zoom
Finder Optical System
Eyepiece Optical System
Head-Mounted Display
See-Through Function
Liquid Crystal
15 patents (USPTO):Explore Patents

Title: Keiichi Kuba: Innovator in Optical Systems

Introduction

Keiichi Kuba is a prominent inventor based in Hachioji, Japan. He has made significant contributions to the field of optical systems, holding a total of 15 patents. His work has been instrumental in advancing technologies related to image pick-up devices and optical systems.

Latest Patents

Kuba's latest patents include an innovative optical system and an image pick-up device. This optical system features at least one lens and a liquid crystal optical element. The design allows for a first and second liquid crystal lens to be arranged oppositely, with their orientation directions crossing at right angles. This configuration enables the correction of focal position shifts relative to incident light from different object points. When the liquid crystal optical element does not deflect rays, it focuses on far object points. Conversely, when it does have a deflecting action, it focuses on near object points. Another notable patent involves an optical system designed to split an optical path from a taking optical system into a finder optical system. This system includes a camera-shake correction function, enhancing the performance of the finder optical system.

Career Highlights

Throughout his career, Keiichi Kuba has worked with renowned companies such as Olympus Optical Company, Ltd. and Olympus Corporation. His expertise in optical technologies has led to numerous advancements in the industry.

Collaborations

Kuba has collaborated with notable coworkers, including Akiyoshi Tochigi and Toshiro Okamura. Their combined efforts have contributed to the development of innovative optical solutions.

Conclusion

Keiichi Kuba's contributions to optical systems and image pick-up devices have established him as a key figure in the field. His patents reflect a commitment to innovation and technological advancement.

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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