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For the Inventor, By the Inventor

Tokyo, Japan

Kohji Sakai

This inventor holds 78 USPTO granted patents and 3 published patent applications and 8 EPO patents, primarily in Optical Scanning Technology (CPC class G01S). Top assignees: Ricoh Company, Ltd., Rioch Company, Limited. Active years: 1998-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kohji Sakai. Retrieved from https://idiyas.com/inventor/kohji-sakai

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

USPTO Granted Patents = 78 

% Patents Active = 74.4

 

Average Co-Inventor Count = 2.4

ph-index = 21

Forward Citations = 1,126(Granted Patents)

Forward Citations (Not Self Cited) = 782(Dec 10, 2025)


Inventors with similar research interests:


Company Filing History:

goldMedal77 out of 28,934 
 
Ricoh Company, Ltd.
 patents
silverMedal1 out of 6 
 
Rioch Company, Limited
 patents

Years Active: 1998-2023

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Areas of Expertise:
Optical Scanning
Image Display
Object Detection
Semiconductor Laser
Microlens Array
Light Source
Wavelength Estimation
Mobile Object
Optical Writing
Image Forming
Sensing Device
Diffractive-Optical Element
78 patents (USPTO):Explore Patents
1. 11740453 - Apparatus configured to fly light-absorbing material, apparatus configured to model three-dimensional modeled object, and method of flying light-absorbing material (2023-08-29),
2. 11150345 - Object detector, sensing device, and mobile object apparatus (2021-10-19),
3. 10700491 - Semiconductor laser, light source device, image forming apparatus, image display device, object device, and colored-light generation method (2020-06-30),
4. 10591602 - Object detector and sensor (2020-03-17),
5. 10534112 - Microlens array, image display apparatus, object apparatus, and mold (2020-01-14),
6. 10371817 - Object detecting apparatus (2019-08-06),
7. 10302942 - Light-source device, image display apparatus, and object apparatus (2019-05-28),
8. 10302767 - Object detector and sensor (2019-05-28),
9. 10209133 - Wavelength estimation device, light-source device, image display apparatus, object apparatus, wavelength estimation method, and light-source control method (2019-02-19),
10. 10203431 - Microlens array, image display apparatus, object apparatus, and mold (2019-02-12),
11. 10148064 - Semiconductor laser driving apparatus, optical scanning apparatus, object detection apparatus, and mobile apparatus (2018-12-04),
12. 10132926 - Range finder, mobile object and range-finding method (2018-11-20),
13. 10071586 - Light irradiation apparatus and information rewritable system (2018-09-11),
14. 10031228 - Object detecting apparatus (2018-07-24),
15. 9981604 - Object detector and sensing apparatus (2018-05-29),

Title: Kohji Sakai - Pioneering Inventor from Tokyo, JP

Introduction: Kohji Sakai is a renowned inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Kohji Sakai holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous dedication to pushing the boundaries of scientific advancement.

Career Highlights: With a career spanning over two decades, Kohji Sakai has worked with leading research institutions and tech companies, spearheading projects that have revolutionized various industries. His innovative solutions have earned him recognition globally.

Collaborations: Throughout his career, Kohji Sakai has collaborated with top engineers, scientists, and designers, fostering a culture of creativity and excellence. His ability to work in multidisciplinary teams has led to the development of cutting-edge products and technologies.

Conclusion: Kohji Sakai's passion for innovation and his relentless pursuit of excellence have solidified his position as a trailblazer in the world of inventions. His work continues to inspire future generations of inventors and researchers worldwide.

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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