Cincinnati, OH, United States of America

Masaharu Nishikawa

This inventor holds 59 USPTO granted patents and 33 published patent applications, plus 1 CIPO patent and 22 EPO patents, primarily in Absorbent Articles (CPC class A61F). Top assignees: The Procter Gamble Company, Other. Active years: 2010-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaharu Nishikawa. Retrieved from https://idiyas.com/inventor/masaharu-nishikawa

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

USPTO Granted Patents = 59 (Patent Applications = 33)

% Patents Active = 76.3

CIPO Patents = 1

EPO Patents = 22 (Patent Applications = 38)

Average Co-Inventor Count = 3.6

ph-index = 10

Forward Citations = 517(Granted Patents)

Forward Citations (Not Self Cited) = 451(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Montgomery, OH (US) (2010 - 2013)
Cincinatti, OH (US) (2017)
Cincinnati, OH (US) (2011 - 2024)

Company Filing History:

58 out of 17,173

The Procter Gamble Company

patents

1 out of 834,513

Other

patents

Years Active: 2010-2025

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Areas of Expertise:

Absorbent Core

Diaper Design

Elastic Belt

Disposable Garment

Urine Sample Collection

Channeled Structure

Layered Elastics

Boxer Brief Silhouettes

Fabrication Methods

Textured Laminate

Containment Features

59 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12318273 - Absorbent article with absorbent core (2025-06-03),

2. 12285322 - Absorbent articles with elastics in multiple layers (2025-04-29),

3. 12285159 - Diaper product adapted for collection of urine sample from an infant (2025-04-29),

4. 12075985 - Diaper product adapted for collection of urine sample from an infant (2024-09-03),

5. 11980530 - Taped and pant diapers comprising substantially identical chassis (2024-05-14),

6. 11903803 - Absorbent articles with elastics in multiple layers (2024-02-20),

7. 11857401 - Hip-to-side silhouettes for boxer brief type disposable absorbent articles and arrays (2024-01-02),

8. 11648159 - Absorbent article with absorbent core (2023-05-16),

9. 11643764 - Nonwoven, and process and apparatus for producing the same (2023-05-09),

10. 11607350 - Wearable article having elastic belt (2023-03-21),

11. 11571340 - Taped and pant diapers comprising substantially identical chassis (2023-02-07),

12. 11491056 - Absorbent articles with elastics in multiple layers (2022-11-08),

13. 11432974 - Length-to-side silhouettes for boxer brief/boyshort type disposable absorbent articles and arrays (2022-09-06),

14. 11432973 - Hip-to-side silhouettes for boxer brief type disposable absorbent articles and arrays (2022-09-06),

15. 11351068 - Length-to-hip and length-to-waist silhouettes of disposable absorbent articles and arrays (2022-06-07),

Title: Inventor Spotlight: Masaharu Nishikawa

Introduction: Masaharu Nishikawa is an accomplished inventor based in Cincinnati, Ohio with an impressive portfolio of 55 patents in his name. His contributions to the field of absorbent articles and diaper technology have significantly impacted the industry.

Latest Patents: Among his latest patents are innovative inventions such as "Taped and pant diapers comprising substantially identical chassis," which focuses on articles with a unified chassis design, and "Absorbent articles with elastics in multiple layers," introducing elastics in various layers for enhanced performance.

Career Highlights: Throughout his career, Masaharu Nishikawa has made significant strides in the realm of product development and innovation. He has worked with reputable companies such as The Procter & Gamble Company, where his expertise and creativity have been instrumental in bringing new ideas to life.

Collaborations: Masaharu Nishikawa has collaborated with esteemed professionals in the field, including Gary Dean LaVon and Sarah Marie Wade. Together, they have pooled their knowledge and skills to push the boundaries of innovation and create groundbreaking solutions in the realm of consumer products.

Conclusion: Masaharu Nishikawa's dedication to innovation and his remarkable ability to transform ideas into tangible products have solidified his position as a trailblazer in the industry. His patents stand as a testament to his creativity and commitment to advancing technology for the betterment of society.

Profile summary based on public USPTO records.