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For the Inventor, By the Inventor

Higashiosaka, Japan

Koichiro Oka

This inventor holds 10 USPTO granted patents and 2 EPO patents. Top assignee: Yamamoto Kogaku Co., Ltd.. Active years: 2002-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koichiro Oka. Retrieved from https://idiyas.com/inventor/koichiro-oka-stf426ii

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

USPTO Granted Patents = 10

% Patents Active = 50.0

 

Average Co-Inventor Count = 2.7

ph-index = 5

Forward Citations = 152(Granted Patents)


Location History:

  • Osaka, JP (2011 - 2014)
  • Higashi-Osaka, JP (2002 - 2016)

Company Filing History:

goldMedal10 out of 120 
 
Yamamoto Kogaku Co., Ltd.
 patents

Years Active: 2002-2016

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10 patents (USPTO):Explore Patents
1. 9507176 - Polarization optical article in which uneven coloring by polarization color has been improved (2016-11-29),
2. 8870373 - Single-lens type polarizing glasses (2014-10-28),
3. 7901074 - Lens for safety glasses (2011-03-08),
4. 7891806 - Eyeglasses (2011-02-22),
5. 7891025 - Protective device for eyes (2011-02-22),
6. 7318960 - Polarizing molded article and process for preparing the same (2008-01-15),
7. 6814902 - Method for continuously manufacturing optical article (2004-11-09),
8. 6659608 - Polarizing optical article (2003-12-09),
9. 6613433 - Polarizing optical composite and polarizing lens (2003-09-02),
10. 6455163 - Transparent optical article (2002-09-24),

Title: Innovations of Koichiro Oka in Polarization Optical Technology

Introduction

Koichiro Oka is a prominent inventor based in Higashiosaka, Japan. He has made significant contributions to the field of polarization optical technology, holding a total of 10 patents. His work focuses on improving the performance and design of polarization optical articles and glasses.

Latest Patents

One of his latest patents is a polarization optical article that addresses the issue of uneven coloring caused by polarization color due to birefringence. This invention features a multi-layered structure that includes a linear polarization functional portion, a retardation functional portion, and a back-up resin portion, all arranged in a specific order to enhance optical performance. Another notable patent is for single-lens type polarizing glasses, which are designed to be optically sufficient and diverse in design. These glasses utilize independent polarizing plates for each lens, which are shaped and adhered to create a functional and stylish product.

Career Highlights

Koichiro Oka has been instrumental in advancing polarization optical technology through his innovative designs and patents. His work has not only improved the functionality of optical articles but has also contributed to the aesthetic appeal of products in this field.

Collaborations

He has collaborated with notable coworkers such as Tamenobu Yamamoto and Masahiko Okamoto, further enhancing the impact of his inventions through teamwork and shared expertise.

Conclusion

Koichiro Oka's contributions to polarization optical technology exemplify the importance of innovation in enhancing both performance and design. His patents reflect a commitment to improving optical products, making a lasting impact in the industry.

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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