Tokyo, Japan

Masahiro Oka

This inventor holds 7 USPTO granted patents and 2 EPO patents. Top assignees: Tokyo Gas Company Limited, Kao Corporation. Active years: 1997-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiro Oka. Retrieved from https://idiyas.com/inventor/masahiro-oka-nvwopldk

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

Calculating rank

% Patents Active = 100.0

 

Average Co-Inventor Count = 4.0

ph-index = 2

Forward Citations = 15(Granted Patents)


Location History:

  • Tokyo, JP (1997 - 2016)
  • Matsudo, JP (2016)

Company Filing History:


Years Active: 1997-2025

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7 patents (USPTO):Explore Patents

Title: Masahiro Oka: Innovator in Specimen Preservation and Cosmetic Application

Introduction

Masahiro Oka is a notable inventor based in Tokyo, Japan. He has made significant contributions to the fields of specimen preservation and cosmetic application. With a total of 7 patents to his name, Oka's innovations reflect his commitment to enhancing functionality and user experience in various applications.

Latest Patents

Oka's latest patents include a specimen-preserving implement and a lip cosmetic applicator device. The specimen-preserving implement features a medium-containing section that accommodates a medium holding a specimen. It also includes a degradation inhibitor in liquid form, which prevents the degradation of the sample contained within the specimen. The design allows the degradation inhibitor to transfer to the medium while a desiccant absorbs humidity without direct contact with the agent holder.

The lip cosmetic applicator device is designed for applying cosmetics to lips. It includes an applicator that is both withdrawable and insertable into a receptacle through a neck. The applicator features a flattened applying portion with a concave surface, allowing for precise application of the cosmetic.

Career Highlights

Throughout his career, Masahiro Oka has worked with prominent companies such as Tokyo Gas Company Limited and Kao Corporation. His experience in these organizations has contributed to his innovative approach and understanding of product development.

Collaborations

Oka has collaborated with notable coworkers, including Hiroshi Kojima and Masaru Edera. These partnerships have likely fostered a creative environment that encourages the exchange of ideas and expertise.

Conclusion

Masahiro Oka's contributions to innovation in specimen preservation and cosmetic application demonstrate his expertise and creativity. His patents reflect a deep understanding of user needs and technological advancements. Oka continues to be a significant figure in the field of invention.

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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